SSS MW HfcSsGflfeJMG mm AVERY LIBRARY COLUMBIA UNIVERSITY! Digitized by the Internet Archive in 2017 with funding from Columbia University Libraries https://archive.org/details/zagelmeyersystemOOzage ■ REDUCED LIST PRICE OF ZAGELMEYER MOLDS SUBJECT TO CHANGE WITHOUT NOTICE ALL PRICES F. O. B. BAY CITY, MICHIGAN ROCK PLAIN PACE FACE Twenty 8x8x24-inch molds, mounted on all iron roller bearing trucks $160.00 $145.00 Twenty 8xl0x24-inch molds, mounted on all iron roller bearing trucks 183.00 168 00 Twenty 8xl2x24-inch molds, mounted on all iron roller bearing trucks 197.00 182.00 If trucks are not wanted, deduct for each twenty mold set. Twenty 8x24-inch veneer block molds, unmounted, without face plates . 40.00 Thirty 8x6xl6-inch molds, mounted on all iron roller bearing trucks . 171.00 159.00 Thirty 8x8xl6-inch molds, mounted on all iron roller bearing trucks . 186.00 166.00 Thirty 8xl0xl6-inch molds, mounted on all iron roller bearing trucks . 209.00 189.00 Thirty 8xl2xl6-inch molds, mounted on all iron roller bearing trucks . 226.00 206.00 If trucks are not wanted, deduct $3 8.00 for each thirty mold set. Thirty 8xl6-inch veneer block molds, unmounted, without face plates 50.00 Outfit for making five 24-inch corners at a time. 30.00 25.00 Outfit for making five 16-inch corners at a time. 15.00 12.00 Outfit for making five ^ and five ^ blocks at a time (24-inch) . 35.00 25.00 Outfit for making ten x / 2 blocks at a time (24-inch). 35.00 25.00 Outfit for making five % and five blocks at a time (16-inch) 26.00 20 00 Outfit for making ten y 2 blocks at a time (16-inch). 26.00 20.00 Watertable and watertable corner outfit for making five watertable and one right and one left watertable corner at a time. 26.00 Outfit for making five inside corners at a time, consisting of five face plates, one-half rock and one-half plain, one cross division plate with wood fillers to make plain end of block eight inches in length and six division plates with end core hole blank . 35.00 All of the above outfits can be used on any of our trucks. Extra face plates, 24-inch, each. 3.00 2.25 Extra face plates. 16-inch, each. 2.00 1.30 Adjustable angle, mold, unmounted, for making five angle blocks at a time. 50.00 Four hundred mold sets of standard brick molds, mounted, on all iron roller bearing trucks. 165.00 Ninety-six mold sets of 8x5xl2-inch tile molds.. _. 229.00 altm ntlmw nf *» |[^|- < flit fiic -ottwtrr PRICES ON PARTS QUOTED UPON REQUEST. ASK FOR PRICES ON ZAGELMEYER LIQUID GLUE — GRANITE CRYSTALS. n j) o. [- 10 - 30 . — sf — Casting Plain and Granite Faced Concrete Building Blocks ® Concrete Brick Zagelmeyer Cast Stone Block Machinery Company Bay City, Michigan CulLsia i::..:;::"; The Most Modern and Efficient Concrete Block Manufacturing Plant in the World EEIE^ ING that “Experience is the Best Teacher”, The Zagelmeyer Cast Stone Block Machinery Company not only manufactures the multiple molds for casting concrete products and all equipment for the production of granite veneered concrete building blocks, hut _ _ J also operates the three largest and most modern block plants in the world at Bay City, Mich.; Detroit, Mich., and Cleveland. 0. We therefore cannot help hut feel qualified to guide and assist others desiring to follow our methods. In all three of our large cast stone block plants we arc manufacturing the highest quality concrete blocks ever produced at the lowest cost the industry has ever known, thereby demonstrating to all concrete block manufac¬ turers, and the entire building industry as well, that The Zagelmeyer System is a thoroughly proven, success¬ ful and practical method of producing both plain and granite veneered concrete blocks in large quantities at a cost so low that a market of almost unlimited possibili¬ ties has been opened up. Home of The Zagelmeyer System, Bay City, Michigan A model of efficiency and economical methods which may well be followed by all block manufacturers desiring to increase profits through the use of practical time and labor-saving equipment, efficient plant arrangement and resultant lower production costs. Page Four Our Detroit plant has never had an idle working day since it teas started in 1912 and now has capacity for the largest production of any concrete block plant in the world. This wonderful growth and success has been entirely due to the high quality of concrete blocks produced and demonstrates the oppor¬ tunities open to all block manufacturers adopting the Zagelmeyer System methods and equipment. The Zagelmeyer System HE process of manufacturing absolutely waterproof, hollow, concrete building blocks by pouring slush concrete into patented multiple molds mounted on roller hearing trucks: combined with the method of applying a sparkling, pure granite veneer facing in the one mold¬ ing operation, constitutes The Zagelmeyer System—a process which has com¬ pletely revolutionized the concrete block industry, developed a new and popu¬ lar building material to a practical standard of production and is fast eliminat¬ ing the old objectionable dry-tamp method from existence. \\ bile the Zagelmeyer System is basically a process or method of manufactur¬ ing plain and granite-faced concrete blocks from slush concrete and casting them in multiple molds, it also includes much patented equipment for the most efficient and economical production of this popular building material. Every detail of The Zagelmeyer equipment is so thoroughly protected by pat¬ ents that no other practical method of manufacturing granite-faced concrete blocks is possible without infringement, and the production of poured concrete blocks (either with or without the granite facing process) is economically im¬ possible by any other method without conflicting with the Zagelmeyer patents. Therefore The Zagelmeyer System affords positive and complete protection to all block makers securing Zagelmeyer Multiple Molds and equipment, through the granting of territorial manufacturing process rights which enables you to enter a profitable business without fear of competition; enables vou to turn out a much better block than is possible by any other method and at a much lower manufacturing cost: and furnishes you with a monopoly legalized by the t . S. patent office for the life of the patents. Page Five 211111 'l ou Can Start on a Small Scale—Grow Bin lou can obtain the exclusive right to manufacture these blocks in your terri¬ tory—we give you absolute protection against competition—and you can build up a business without fear of cut prices putting an end to your enterprise. Only in The Zagelmeyer System will you find a guarantee like this. Competition in the cement block industry where operations were conducted along unprotected methods has resulted in the failure of many a business con¬ cern that could not withstand the pressure of ‘"the underbidding mania”. The Zagelmeyer System gives you an assured business that no one can destroy— your profits are sure and are governed only by the volume of production and capacity ol your equipment. All purchasers of Zagelmeyer moulds can obtain equal protection in their respective territory—regardless of whether they start with limited equipment or operate on a large scale. If you are now engaged in the cement block business you know the defects of the dry tamp and other methods ol making hollow cement building blocks— you also know that anybody can make cement blocks by the old process, and you can readily appreciate the advantages of a cement block manufacturing business that has no competition. Zagelmeyer System a Proven Success Since 1907, when I he Zagehnever System of Multiple Molds, granite veneering process and equipment were finally perfected, steady progress has been made, until today concrete block manufacturers in every state in the union are suc¬ cessfully using this equipment and building up strong, substantial, non-com¬ petitive businesses that are in every case showing great earning capacities. There are many Zagelmeyer System concrete block plants throughout the coun¬ try with large capacities and making handsome profits. Vi herever you find a Zagelmeyer System Concrete Block Concern you will note that it is enjoying a practical monopoly of the concrete block business in that community, is experiencing a steady growth and expansion year after year, and paying substantial returns on the investment. In some localities there are still to be found a few small concerns or individuals struggling along in a feeble sort of make-shift way with the old “dry-tamp system and laboriously turning out inferior blocks, one at a time, by hand. Such competition, however, amounts to but little and is fast being eliminated. Page Six ( Other Processes Cannot Compete The modern time and labor-saving methods of The Zagelmeyer System has reduced the cost of production to a point where blocks made by any other process cannot possibly compete either in price or quality. There is no question whatever as to the permanency of the steadily increasing demand for granite-faced blocks made by The Zagelmeyer process. The beauti¬ ful appearance, great strength, durability, waterproof qualities and low cost have won favor throughout the entire building field. The remarkable growth of the plants using Zagelmeyer System molds and equipment is proof sufficient that The Zagelmeyer System has solved the concrete block problem, overcome all of the defects of blocks made by other processes and beyond a doubt placed the granite-faced concrete block among the foremost of high-grade standard building materials. The illustration to the left shows a section of tunnels of the If atertown Concrete Com¬ pany’s plant at If atertown, Mass., and their method of trans¬ ferring cars. The other view shows a part of the yards and some of the stock. Page Seven A glance at the above photographic reproduction of a small section of a Zagel- meyer granite veneered smooth-faced concrete block shows the perfection of our process. The grains of granite which make up the facing lie so close together that no cement can be seen. The outer surface is entirely free from cement and nothing but the i>ure, sparkling granite crystals show, while the backs of these crystals are permanently imbedded in neat cement, holding them securely against the ruvages of time and weather. This twenty-four inch Zagelmeyer granite veneered smooth-faced concrete block is not a special sample, but a block taken from regular stock. It has not been treated with acid, nor sprayed nor scrubbed, but is just as it came from the mold. These sparkling, beautiful blocks can be made either rock or smooth-faced for less money than the ordinary sand-faced block by the dry-tamp process. No concrete blocks were ever made by any method that equals them for appearance, quality, strength, or imperviousness to heat, cold or moisture. Page Eight Note that our rock-faced design has every appearance of having been rough-hewn with mallet and chisel from a block of solid granite. The block shown is our standard 16-inch size with two dead air cells. These dead air cells act as a non-conductor to heat and cold, thus thoroughly insulating a build¬ ing and idso make possible a lighter and more easily handled block. Granite Faced Concrete Building Blocks s ns UJ} YER since concrete blocks were first conceived, manufacturers have continually experimented with various methods of facing the bloeks in an attractive and practical manner. Numerous facings have been attempted, but tbe difficulty lias always been to apply tbe a practical manufacturing method at a cost that was not prohibitive, is it universally recognized that The Zagelmeyer System makes it facing by Not only possible to manufacture a perfect concrete block, but also that the process of applying a pure, sparkling granite facing is a crowning feature that distinguishes this product as the last word in concrete blocks. They are low in first eost as compared with other high-grade building materials, cost less to lay—making a rapid and economical construction possible and re¬ quire no upkeep for repairs or paint. The 16-inch and 24-inch lengths in both smooth and rock iace as shown on this and opposite page have been generally adopted as standard lengths of blocks meeting all building requirements. In addition to our standard size cores we are prepared to furnish cores any special size to conform with varying building codes in different territories. Molds are also furnished as desired for the manufacture of angle blocks, corner blocks, one-balf blocks, one-quarter and three-quarter blocks. Thus all difficult construction problems are ideally met with this extremely versatile building material. These granite faces are not only beautiful when new but, unlike all other con¬ crete blocks, retain their sparkling beauty indefinitely. All other blocks become badly discolored within a few months because they are so porous that the rain carries the dust and dirt into the blocks. Our blocks are free from pores and are absolutely waterproof, so that the rain tvashes the dust off and therefore they always hold their original sparkle and lustre. Page Nine The upper picture shows the method of treating the face plates before applying the granite facing. The center illustration shows how the slush concrete is poured into the multiple molds, directly from the big automatic mixer. The lower illustration shows the molds having the cores inserted just before being filled. Page Ten Illustration shows how artificial heat is applied to facilitate the drying: so that all the molds are used once each day. This view shows but one side of a i>or- lion of the tunnels at our own plant in Bay City. The tunnels are a duplicate on the opposite side, allowing room for two cars end to end in each tunnel opening. How Zagelmeyer System Granite Faced Concrete Blocks are Made N producing GRANITE VENEER concrete blocks, a face plate is first coated with a thin specially prepared glue, then covered with crushed granite particles. By turning the plate over, all the surplus particles which do not adhere to the face plate drop off, after which late is set away until the glue hardens, which takes about one hour. Just before putting the face plates in the multiple molds, the granite crystals that now form a complete coating on the face plate, and held firmly in place by the hardened glue, are given a coating of pure cement mixed with water to the consistency of a thin paste. This coating of “neat” cement is applied with a brush, and the purpose of this coating is to imbed the crystals in a layer of pure cement. The face plates are now ready to he inserted in the molds. The next step is to fill the multiple molds with slush concrete and leave the mixture to harden. As the wet concrete mixture is poured directly against the cement coated side of the face plate, the two surfaces “set” together so that the granite veneer facing becomes a part of the block itself. While the mixture is “setting” the water from the wet concrete softens the glue which holds the granite crystals to the face plate, so that when the blocks are removed from the molds they appear just as you see them in the illustrations, requiring no further treatment whatever. The only purpose of the glue is to hold the granite crystals in place and to pro¬ tect one side of them from cement while the block is being cast. THIS GLUE ALL COMES AWAY WITH THE FACE PLATES IN GRANULAR FORM. and three or four strokes with a wire brush cleans the face plates for the next coating of glue. Feeble attempts have been made to produce granite and other natural stone laces by using acid to eat away the cement. Attempts have also been made to obtain the desired results by spraying before the cement has set. These meth¬ ods, however, are expensive and impractical and the results have never been satisfactory. the face p Page Eleven 1 lie Zagelmeyer System is the only successful and practical process ever con¬ ceived for applying a beautiful granite veneer facing on concrete blocks, and our method is so simple and so inexpensive that it adds but very little to the cost of the blocks. The Zagelmeyer "Wet Mix’* Process Insures an Absolutely Waterproof Block It has been known for some time by all practical concrete engineers that con¬ crete building blocks made by the so-called “wet-mix” system arc about twice as strong as blocks made by the now obsolete “dry-tamp” system. Concrete blocks made of slush concrete overcome that greatest of all objections to drv- tamp blocks—their porousness. No matter how carefully made or how well tamped, dry-tamp blocks are full of pores and absorb moisture freely. On the * While the manufacture of Cast Concrete Building Blocks on the Zagelmeyer System is a very profitable business when con¬ ducted on a large scale in a large city, it is also a very attrac¬ tive business for the man of limited means in a small town or village. We very often have customers start in a small or medium-sized village with only two or three sets of molds and by adding a few molds each year develop a very substantial business. other hand, blocks made by the wet-mix process—that is, if the concrete is mixed wet enough so that it can he poured directly into the mold and allowed to remain there undisturbed while the initial set is taking place—require no tamping, every atom of cement is completely crystallized and the result is a perfectly dense block, free from all pores and CONSEQUENTLY ABSO- LL TEL\ Vi ATERPROOF and a block of the greatest possible strength. It is density (freedom from pores) which makes a waterproof block. And it is necessary to use plenty of water to make the mass liquid enough to insure perfect precipitation so that the pores will he completely closed through com¬ plete crystallization, t nder the Zagelmeyer System the concrete mix is suffi¬ ciently thin to (low freely to all parts of the mold without tamping. The excess moisture can he driven off as rapidly as required, and it makes abso¬ lutely no difference to the quality of the block whether this is done in an hour or a week. The length of time required for the “set” to take place and the blocks to harden sufficiently to permit removal depends entirely upon the tem¬ perature of the air. As the heat necessary to drive off the moisture sets the cement quicker than it evaporates the moisture, by the time one-half of the moisture has left the block the block is hard enough to take out of the molds and yet still retains enough water to supply the cement with the necessary moisture to insure proper curing. The blocks are so dense that they will retain some of this moisture for days, even if the block is set out in the hot sun, and for this reason blocks made by our system require no sprinkling after being taken from the molds. Page Twelve Molds Used Once a Day At ordinary summer temperature, with I airly quick setting cement, the blocks can he removed in from twenty to twenty-four hours, so that in summer weather the molds can be used once per day without artificial heat. By applying arti¬ ficial heat and keeping them in a temperature of 120 degree F. for eight or ten hours, they can he removed in twenty hours, and the molds can he used once each day in any kind of weather. The best method of applying artificial heat to the molds is with a series of small tunnels, heated with steam pipes, each tunnel just large enough to admit a car of molds; the number of tunnels, of course, depending upon the capacity required. Tunnels of wooden construction can he used, hut it is better to build them of concrete and the cost is not much greater. A few tunnels can be built and a few cars of molds purchased to start with, and more cars can he added as desired. The price at which these blocks sell for over all other makes will soon give you money to buy more cars. Every cus¬ tomer is a satisfied one and brings you another, and in this way your trade increases and soon develops into a permanent and profitable business. How to Obtain Granite Crystals and Glue There are several reliable sources of supply which we can recommend to all block manufacturers adopting I he Zagelmeyer System. In order to establish a universal standard of appearance of Zagelmeyer Granite Veneered Concrete Blocks it is desirable in so far as possible to maintain cer¬ tain sources of supply, and we have arranged to carry large stocks on hand out of which we can fill less than car load orders sent to us direct. We recommend where car load lots are wanted that orders be placed direct with the quarries. Granite Crystals are packed in sacks containing 100 lbs. We can make ship¬ ments from our Bay City plant in all quantities on short notice. We also carry in stock considerable quantities of the special glue used in apply¬ ing the granite crystals to the face plates and can make prompt shipments at all times. Plant of the Bangor Cast Stone Products Co., Bangor , Maine. Page Thirteen Page Fourteen „ fc - Ft «« HI ■■ n it •• i* ■■ ■! IP KT Itfc ID ■■ ■■ Granite Faced Cast Stone Block Houses Have Many Advantages Over Other Types ROGRESS in concrete block constructions for dwellings lias taken rapid strides within the past few years as the many advantages of this tvpe of building becomes more generally understood. There is no doubt hut that the sparkling beauty of the granite crys¬ tals comprising the facing of Zagelmeyer Cast Stone blocks, enhanced by the natural rock surface design, adds attractiveness and distinctiveness to homes built of this material, and the originality of architectural designs possible is prac¬ tically unlimited. Chief among the primary reasons why concrete block dwellings have many advantages over other types are greater permanency, greater warmth in winter and greater coolness in summer, greater economy, lower upkeep and the fact that houses of this type are fireproof. Granite-faced concrete blocks cost less than almost any other high-grade building material and cost considerably less for laying, as they require less labor than brick or wood construction. More rapid construction is possible with concrete blocks than with any other known material. As Zagelmeyer granite-faced blocks never lose their sparkling beauty and require no upkeep or repairs the economies and advantages of this type of construction is becoming more generally realized. There is a snugness and warmth about homes built of Zagelmeyer Granite¬ faced concrete blocks that appeals to the desire for cozy appearance and substantial construction. Page Fifteen The Perfect Material for Porches and A Foundations HE widespread popularity of Zagelmeyer Granite-faced Concrete Blocks for foundations and porches is due entirely to their supe¬ riority over all other building material for such construction requirements. In the hrst place, two big economies are made possible. Zagelmeyer concrete blocks cost less than any other material suitable for basement construction, and cost far less to lay, the savings on material and labor invariably averaging from 33 1/3 to 50 per cent. Another very important advantage of Zagelmeyer concrete blocks is the fact that they are absolutely waterproof and the hollow wall construction, because of the dead air spaces in the blocks, makes a positively dry basement that is cool in summer and warm in winter, these dead air spaces acting as a non¬ conductor to heat or cold. Zagelmeyer concrete blocks are so perfectly dense and free from pores that no moisture of any kind can possibly he absorbed, even if the block is laid in water. Never, under any circumstances, will there he found any moisture or mold on the inside of the basement wall if built of this material. Owing to the light gray color of Zagelmeyer concrete blocks, the interior of basement is materially brightened, presenting an extremely light, clean surface. Being built of poured slush concrete, Zagelmeyer cast stone blocks have the same strength as though a wall were built of solid concrete, thus making the strongest possible construction. Foundations for the tallest skyscrapers are made of slush concrete poured into molds, following the same identical prin¬ ciple by which Zagelmeyer blocks are made. Page Seventeen The popularity of stucco construction for fine homes opens a wide field for the Zagelmeyer cast stone block manufacturer, as there is no better base for stucco exteriors than waterproof, hollow concrete blocks. Page Eighteen Za&elmeyer Cast Stone Blocks make the Best Construction for Stucco Work HERE is .absolutely no better base possible for higli-grade stucco work than waterproof, bollow concrete blocks made by The Zagel- ineyer System. On account of the fact that the expansion and contraction of stucco is identically the same as that of concrete blocks, cracking of the walls I a com¬ mon objection to stucco work when laid over metal or any other base) is abso¬ lutely prevented. A stucco house, with the stucco laid over Zagelmeyer System concrete blocks, is warmer in winter, cooler in summer, easier to beat and makes the strongest possible construction In addition this type of construction is positively fire¬ proof, a feature of considerable importance in large cities wher the building codes are rigidly observed on this question. Zagelmeyer System concrete blocks cost no more than metal lath and are far superior, owing to the greater strength of block construction and the fact that the dead air space due to the hollow cells of the concrete blocks lias many advantages over any other base for this purpose, thoroughly insulating the building against beat and cold. Some of the finest stucco homes in the country are constructed with stucco laid over Zagelmeyer System concrete blocks. Page Nineteen No material is better adapted for fireproof garage construction than granite-faced concrete blocks. Page Twenty Fireproof Qualities of Zagelmeyer Cast Stone Blocks Open Big Field in Building Modern Garages HERE are two essential requirements in selecting a building mate¬ rial for garage construction—strength and fireproof qualities. Zagelmeyer granite veneered concrete blocks ideally meet both of these requirements. Aside from solid stone or steel reinforced concrete, no possible building mate¬ rial could offer equal strength to Zagelmeyer cast stone blocks, and no other material of equivalent strength presents such possibilities for beautiful appear¬ ance. It requires a strong wall to support a strong and heavy floor and all garages must have strong floors and fireproof walls. It is on this account that builders of garages immediately recognized tbe advantages of Zagelmeyer granite veneered hollow concrete blocks for this purpose. Thousands of modern garages are now being constructed of this material in all parts of the country. fT hetlier a mammoth public garage or a small private garage, Zagelmeyer granite-faced concrete blocks meet the exacting requirements for such types of construction as are slioun in the above pictures and also on the opposite page. Page Twenty-one Page Twenty-two Railroads are Adopting Cast Stone Block Construction for Economy and Permanency AILROADS are fast replacing wooden buildings with a more perm¬ anent type of construction. Depots, round houses, freight sheds, signal towers, and other railroad buildings arc subjected to a con¬ siderable fire hazard, and it is now becoming widely recognized lroad officials that permanent, fireproof buildings are by far the most economical and best suited to their requirements. Then, too, economy in first cost and economy in upkeep is a big consideration for railroad building construction work. among rai Zagelmeyer System granite-faced concrete blocks are by far the best suited for such exacting purposes and fully meet all of the requirements of railroads such as fireproof construction, economy, permanency, elimination of upkeep and maintenance cost, and better appearance. In connection with the better appearance of granite-faced blocks for railroad use, many railroads have found that buildings constructed of this material are easily kept clean and free from smoke, dust and soot by flushing occasionally with a stream of water. The smooth granite surface of these blocks will not retain the dirt and are easily flushed spotlessly clean w ith hose and water. This is particularly desirable for depots and signal towers. Page Twenty-three Zagelmeyer System Concrete Blocks are Absolutely Waterproof—Here’s the Proof! The water test shown in the photographic illustrations below proves conclusively that Zagel- taken from regular stock. Both blocks are surrounded by a water-tight fi ' ' ' ' ‘ ’ ' ' ' ' ' about two inches i' ’ ’ ~ D i which projects meyer System concrete blocks arc absolutely waterproof and that dry-tamp blocks soak up f about two inches above the top. The frame surrounding the Zagelmeyer block is nearly water like a sponge. We guarantee that anyone can make the same test anywhere with the filled with water which remained at the same level throughout the test and for several weeks same results. thereafter until removed. The Zagelmeyer block did not absorb a drop of moisture in all This test was made with a good grade of dry-tamp block and a Zagelmeyer cast stone block that time, remaining so dry you could scratch a match on it anywhere. There are few types of buildings for which Zagelmeyer Cast Stone granite- faced blocks are not ideally suitable. Page Twenty-six -i Zagelmeyer Cast Stone Blocks are Suitable lor Widely Diversified Types of Fine Buildings OSPITALS, schools, factory buildings, stores and large public build¬ ings are being built of granite-faced concrete blocks because of the strength, permanency, fireproof qualities, economy and beautiful appearance of Zagelmeyer granite-faced concrete blocks. In fact, there is hardly a building purpose for which these blocks do not possess superior advantages over all other materials. During the past five or six years particularly there has been an increasing use of Zagelmeyer System blocks in the construction of large buildings, and manu¬ facturers of our blocks throughout the country are finding a tremendous field open to them along this line. Contractors have been favorably impressed with these blocks because of the economy and ease of laying and the great saving of labor possible as well as the rapidity of construction where the time element must be considered. From every standpoint it can be readily appreciated that a steadily increasing use of Zagelmeyer blocks for fine buildings is bound to bring them into the front rank of favored materials for such construction purposes. Above is a beautiful store building; recently completed in Bangor, Maine, Ulus trating the adaptability of our blocks for construction uork of this character. Page Twenty-seven Farmers and dairymen are beginning to favor Zagelmeyer System concrete blocks as the ideal type of construction for barns, and this field presents golden opportunities for block manufacturers. Page Twenty-eight Farm Buildings of Cast Stone are Dry, Warm, Fireproof and Will Outlast All Other Building Materials ARMERS all desire a dry, warm and fireproof barn to house their livestock, grain and implements. All over the country sentiment is gradually swinging to greater permanency for farm buildings. W1 terever Zagelmeyer concrete blocks have been introduced into a community for the erection of line farm buildings, others have quickly fallen in line and strongly favored this material on account of its very apparent supe¬ riority for general building purposes on the farm. The hollow, insulated walls mean warm and dry interiors in winter and cool barns and stables in summer. The fireproof qualities of concrete block con¬ struction are especially essential for barns and country buildings on account of the absence of fire protection, and still another point in favor of concrete blocks is their low cost, it being considerably cheaper when everything is taken into consideration, than most other kinds of material suitable for such purposes. Concrete Block barns are permanent buildings, will not need replacement, and require no painting or upkeep expense. Once erected, they are a monument to the far-sighted judgment, pride and enterprise of the man who builds them. Page Twenty-nine ; The Cast Stone System of Making Concrete Blocks vs. the Dry Tamp System HE “drv-tamp" system of making cement l)loeks consists of making all blocks in one mold. The mixture is simply dampened and is tamped into the mold and removed at once. With the Cast-Stone or Wet- Mix System the mixture is made very wet and is poured into the molds without tamping, and is allowed to remain there until the initial set of the cement has taken place and the block is hardened. Even the best blocks made by the “dry tamp'” system are weak and so porous and soak up so much water that buildings made from these blocks are always damp and unhealthy. \\ inter rains, followed by a sharp frost, in a short time are apt to disintegrate them, and the structure becomes weak and dangerous. I he reason is plain and simple. It is impossible with the “dry-tamp” system to add water enough to the mixture to crystallize more than a portion of the cement. If more water was used, the blocks would fall apart when removed from the mold, which has to he done at once, as the mold is used over and over again. “Dry-tamp ” blocks, after being made, are sometimes put into steam curing rooms in a vain endeavor to remedy the above mentioned evil. This, however, helps hut little, as it only ages the block prematurely and cannot possibly fill the voids after the block is once formed. There is hut one way in which this can he done, and that is by adding water enough to the mixture to crystallize all the cement, which at the same time makes the mass plastic enough so that the voids are filled by precipitation, and in order to do this, enough molds must he provided to allow the cement to set before removing the blocks. The Cast-Stone or Wet-Mix System of block making consists of making the mix¬ ture so wet that every atom of cement is crystallized, and then so thoroughly mixing it that even' particle of sand, gravel or stone of which the aggregate consists, is perfectly coated with cement. This creamy mixture is then poured directly into the molds, the mixture being so thin that it flows freely to all parts of the mold without tamping. The mixture is allowed to remain in the molds while the cement takes its initial set undisturbed and the block hardens. The result of this cast is a beautiful block resembling natural stone so closely that it is difficult to tell the difference. As there are some who think dry heat is injurious to concrete, we wish to state that to “dry tamp” concrete, heat is certainly very injurious, hut to concrete as wet as we use it, extended experiments have proven beyond a doubt that heat up to the point of driving off the excess moisture, does not affect the quality of the concrete a particle. In a mixture wet enough to make a good cast, such as is used in our process, all the water is used that the cement requires, which makes the concrete liquid enough so the particles will precipitate and close the pores, thus making an absolutely WATER-PROOF BLOCK. Complete precipitation takes place within a few moments after the molds are fdled and the excess moisture can then be driven off as rapidly as required, and it makes no difference to the quality of the block whether this is done in an hour or a week. The heat necessary to drive off the moisture sets the cement quicker than it evaporates the moisture, so that by the time one-half of the moisture has left the block, the block is hard enough to take out of the molds and the block still retains water enough to supply the cement with the necessary moisture to properly cure same. The block is so dense that it retains some of this moisture for days, even if the block is set out in the hot sun. and, for this reason, blocks made on our system require no sprinkling after being taken from the molds. Page Thirty CATALOG The Zagelmeyer System of Multiple Molds for Casting Concrete Blocks and Brick Page Thirty-one Zagelmeyer Patents Thoroughly Protect Our Customers UR process patents covering basic features of casting granite-faced concrete blocks, together with our patents on multiple molds, are sufficiently broad to completely protect users of our equipment against possible competition. There is no other practical method of casting blocks in multiples which would not infringe upon our patents. Thus any block manufacturer using Zagelmeyer System equipment need have no fears of any competitor being able to produce waterproof hollow concrete building blocks, either plain or granite-faced, in his allotted territory. Neither need anyone using this equipment have any fear of any competitor making blocks by any method which could compare either in price or quality. The Zagelmeyer System is as thoroughly protected by patents as it is possible to cover a process of this kind. Exclusive Territorial Rights Granted to Block Manufacturers to Use Zagelmever System Molds and Equipment W hen you equip your plant with Zagelmeyer System Molds and Equipment you can obtain the exclusive right to manufacture blocks in your territory by this process. This gives you an opportunity to make a better quality block than is possible by any other method at a considerably lower cost than blocks made by any other process; gives you the sole right to manufacture granite-faced blocks; enables you to meet any competition without cutting your price; increases your profits; and gives you an absolutely protected monopoly. Tou can make more money manufacturing concrete blocks under the Zagel¬ meyer patents than you could by any other method, and because of the better quality of product possible you can sell more of them. And one of the most attractive features of our franchise protection is that you positively eliminate anyone else from making these blocks in your territory. Page Thirty-two Twenty 8"x8"x24" molds mounted on all iron, roller bearing truck. Diameter of wheels, 10"; width over all, 48"; length over all, 8’ 10"; weight, 1100 pounds; height above rail, 23"; standard track gauge, 24" (other guages to order). While our standard molds are for 8", 10" and 12" blocks, we can make molds to order for practically any desired thickness. This is a view of the back end of the car. For locking end of car see illustration below. This is a view of the front or locking end of the twenty mold set of 24-inch molds illustrated above. By merely placing the locking bar between the end of the molds and the taper standards, the molds are all securely locked in position, bringing them up squarely and snugly against the fixed standards at the rear. Page Thirty-three r Cut showing 24-inch molds partly set up. The last five molds set up are for half-blocks. 1 liis half-block section fits any of our trucks. The face plates of different designs are interchangeable. This view shows 24-inch molds all set up and locked, but before the cores are inserted. W hen the face blocks are to be made the facing material is applied before the cores are put in. After the cores are inserted the molds are ready to push under the mixer. The cores do not taper, thus no material is wasted in the taper. They work to perfection, the slightly tapering wedges holding them in the expanded position, while the concrete is setting. When blocks are hard enough to remove, the steel wedges are taken out and the cores collapse about one inch, which enables them to be removed with ease. Page Thirty-four Thirty 8"x8"xl6" molds, mounted on all-iron roller bearing trucks. Diameter of wheels, 10"; width over all, 48"; length over all, 810"; weight 1100 pounds; height above rails, 23"; standard track guage, 24"; other guages to order. This view shows locking end of molds after they arc set up. By merely plac¬ ing locking bar between the end of the molds and the taper standard the molds are all securely locked into position, bringing them up squarely and snugly against the fixed standards at the rear. Page Thirty-five This illustration shows our 24-incli corner block outfit which fits any of our 24-inch cars. Tunnels should be made 28 inches high above the rails in the clear, so that a car with a 24-in. corner block outfit can be used in any of them. Our 16" corner molds have an 8" return, therefore do not require an offset plate. Thirty 8"x4"xl6" veneer molds mounted on all-iron roller bearing truck. The blocks made in these molds are solid and can be used in narrow places where it would be impossible to use a full-sized block. Page Thirty-six Granite Facing Machine HIS machine is for putting the granite crystals on the face plates after the face plate has been given a coating of glue, it is locked in the ma¬ chine by a turn of a small hand wheel. The box underneath is divided and contains two sizes of crystals. A small hand scoopful of the coarse size is first put into the box, the bottom of which is the face plate; then the large hand wheel is turned toward the compartment containing the coarse crystals, until the box is completely upside down, and at the same time the compartment moves under the box and all crystals that do not adhere to the glued surface of the face plate drop back into the compartment from which they came. The box is then brought to an upright position and the fine crystals are then applied in the same way. Two men, with this machine, clean the face plates, glue them and apply the crystals at the rate of 100 per hour. Where only a few molds are operated, it is not necessary to have one of these machines, as we furnish a much cheaper outfit for small plants, but for 200 or more molds, this machine soon pays for itself. Adjustable Angle Block Molds The above outfit consists of an adjustable mold for making five angle blocks at a time. These molds are not mounted on trucks but are usually placed at some convenient place where they can he easily filled and where the blocks will not have to he carried too far when removed. The blocks to use with the 16-in. size is 12 in. long on one end and 4 in. long on the other end. For the 24-in. size they are 12 in. long on one end and 6 in. on the other. We make them for 8, 10 or 12-in. walls, with either plain or rock face plates. Page Thirty-seven Become a Silo Manufacturer by the Zagelmeyer System I L O S built with cast blocks made by the Zagel¬ meyer System are abso¬ lutely air-tight and water¬ proof. This is essential in silo con¬ struction. These blocks are also frost, wind and fireproof; cannot blow over; never need repairs or attention; are practically indestructible and make a permanently-built silo; are more durable than any other kind of construction and ARE CHEAPEST TO BUILD. Genuine satisfaction lias been express¬ ed wherever silos have been con¬ structed of waterproof blocks made by tbe Zagelmeyer System, it being the universal opinion of all farmers who have purchased Zagelmeyer Sys¬ tem Silos that they represent tbe one type of construction that is without a fault and that they are by far the cheapest in the end. “Zagelmeyer Silos are unequalled”, says David II right, whose granite-faced silo kept his silage from freezing at 15 degrees below zero. Nothing in the concrete industry is more profitable than furnishing silo blocks to progressive and pros¬ perous farmers. A ote the depression in end of block. This depression is filled with mortar to seal the joints perfectly. Zagelmeyer Silo Block Molds Thirty moulds for casting Zagelmeyer Silo Blocks. Mounted on roller bearing truck. Either rock or plain faced. i Page Thirty-eight Cost of Manufacturing Blocks by the Zagelmeyer System WING to the fact that the cost of materials varies in different locali¬ ties it is impossible to give an exact cost of manufacturing Zagel¬ meyer System blocks which would be universally correct. It is easy to compute the cost of manufacturing our blocks in your own locality by merely filling in the correct material prices in the list given below and inserting your local prices for labor. The following table shows the exact amount of material and labor required to manufacture one thousand 8 x8 x24" blocks or 1500 8 x8 x!6 plain blocks. 25 bbls. cement @ . $ 20 yds. gravel @ . Labor, 8 men one day’s time, each. . 1 foreman . Light, power, water, coal and oil, approximately $7.00. Add three cents extra for granite facing for the 24” block. Items such as depreciation, interest, insurance, and other general overhead charges, should he included in order to arrive at a definite estimate of maim- facturing cost. The above will, however, afford a good basis for comparative costs and enable you to readily determine the economical advantages and tre¬ mendous savings possible through the use of modern methods and equipment which greatly reduces labor costs. Page Thirty-nine This cut illustrates a four-hundred mold set of brick molds ready to have the brick removed. ISote the pleasing appearance of the brick piled in the fore¬ ground, some of which have just come from the molds. Zagelmeyer Multiple Molds for Casting Concrete Brick Makes Concrete Bricks Cheaper than Clay Bricks and Opens New Possibilities for tlie Concrete Block Manufacturer PROCESS of casting concrete bricks in multiple molds, 400 at a time, and making possible the handling of the cast bricks in units of 10 at a time—a process so simple that one man can make four thousand bricks a day—has been perfected by us as a further expan¬ sion of The Zagelmeyer System. Experiments have been conducted for nearly ten years by this company in the effort to develop a practical method of manufacturing concrete bricks at a cost which would make the use of concrete bricks commercially economical. Two years ago Mr. F rank Zagelmeyer, president of the Zagelmeyer Companies, per¬ fected the present molds and began the manufacture of concrete bricks on a commercial scale in the three large block plants operated by his concern. It was conclusively demonstrated during the past two years that concrete bricks could be manufactured by the Zagelmeyer System at a cost even below that of making common clay brick, making it possible to offer concrete bricks to the building field in direct competition with all other kinds of brick. Page Forty I lie saving of time and labor is the principle reason why it is possible to make concrete bricks under the Zagehneyer System cheaper than to manufacture oilier bricks by any present method. Naturally the cost of the materials in the manufacture of concrete brick is considerably higher than the raw material for production of clay brick but tbc Zagehneyer System more than offsets this in a reduction of labor costs, thereby placing concrete bricks in an advantageous position so far as trade competition is concerned, as they can be sold for less than the market price of any other bricks and on account of tliis low cost can be used for practically all purposes for which building bricks are used. Made by the Same Process as Zagehneyer Concrete Blocks The Zagehneyer System of Multiple Brick Molds consists of forty open end units, each holding ten bricks,, or 400 molds in all, mounted on a roller hear¬ ing truck. The molds can he quickly set up on the truck and the truck run under a concrete mixing machine where the slush concrete is poured directly into the brick molds. The truck is then run into heating tunnels or kilns, heated with steam pipes, and allowed to remain in a temperature of 120 degrees for eight to ten hours before removal. This allows the concrete to take its initial set before removing the bricks from the molds. The length of time required for the set to take place and the bricks to harden sufficiently to permit removal, depends upon the temperature of the air. At ordinary summer temperature, without the heated tunnels, and with fairly quick-setting cement, the bricks can be removed in from 20 to 24 hours, so that the molds can be used once each flay in any event. After the concrete has taken its initial set, the bricks are ready for removal and final curing. The only handling the bricks receive during the entire process of manufacture is when they are taken from the molds, and this is simplified This cut illustrates the method of removing the brick from the molds , which are so simple to operate that one man makes four thousand brick per day. Page Forty-one This view further illustrates the brick beiiift removed from the molds and stacked in a /tile. By this process brick can be made cheaper than by any other knotvn method and yet the quality of the brick produced is far superior to most high-grade and high-priced clay brick. l»y handling ten bricks at a time in the unit of ten molds. The workman lifts out the units and deposits the ten bricks on a pile in one operation, without handling each individual brick. Bricks are Made from Slush Concrete Owing to the fact that the bricks are made from slush concrete, a mixture is obtained which becomes perfectly dense and free from pores, thereby insuring an absolutely waterproof brick of much greater crushing strength and consider¬ ably greater hardness than most other types of brick. The practicability and low cost of manufacturing concrete brick under The Zagelmeyer System opens up tremendous possibilities in an almost unlimited field for this grade of new building material, and due to the small investment required for producing bricks under this system, the making of concrete bricks is possible for small manufacturers, building supply dealers, and even contractors to enter this field. To the man of limited means in a small town the manufacture of these brick is unusually attractive. The smaller places do not usually have a brick factory, and as brick are very heavy transportation adds materially to the original cost, and this fact enables the manufacturer of Cast Concrete Brick, at all points where there are no brick factories, to make a double profit. Page Forty-two Referring to this cut you will note there are ten bricks to the unit and each face plate holds two units. The molds here illustrated are to cast a brick 2 1 A"x3%"x7 1 /8" and the set has the following specifications: Diameter of wheels, 10"; width over all, 48"; length over all, 8'10"; weight, 1400 pounds; height above rail, 23"; standard track gauge, 24"; other gauges to order. This view shows a four-hundred mold set of molds mounted on an all-iron roller bearing truck before being filled. Molds can be furnished for any size brick, but the size of the molds cannot be changed, after they are made. Page Forty-three Small Investment Required A few tunnels can he built and a few molds, mounted on trucks, can he pur¬ chased to start with, and more equipment added as desired. As each car, or truck of molds, has a capacity for casting 400 bricks at a time, and as each car or set of molds can he used once daily, any desired production can he readily figured in terms of equipment required. Twenty-five cars of molds would give a plant capacity of 10,000 bricks per day. The trucks used for these molds are about the same size and of the same track gauge as the ones used for Zagelmeyer Multiple Block Molds, and the many manufacturers of Zagelmeyer Cast Concrete Block can manufacture the brick with no other expense for equipment that the actual cost of the molds. There is no question as to the market for concrete bricks. Concrete is fast becoming a leading building material, and the only reason concrete brick has never been used extensively is on account of the previous impracticability of manufacturing them in quantities at a reasonable cost. With the method of manufacture brought to a practical basis, and the cost reduced to a par with that of clay brick, it can be readily appreciated that the possibilities for use of concrete brick are almost beyond conception, as the comparative quality of concrete brick and common brick is all in favor of the stronger, harder and more permanent qualities of concrete. Material Required for 1000 Brick The cost of manufacturing concrete brick may be readily computed from the following information: The material required for producing one thousand concrete brick under The Zagelmeyer System is one and five-eighths yards of gravel and one and three-quarters barrels of cement. The size of brick covered by this material requirement is the size which we have adopted as standard— 2^"x3 :? 4 x7” N . Any desired size of brick can be made by our system by having molds made to order. As the cost of cement and gravel varies in different localities, we have avoided giving definite cost figures. By taking the prevailing market price of gravel and cement in your city and multiplying it by the quantities of material required for the production of 1,000 brick, and then figure that one man can make 4.000 bricks per day, you will find that the cost of labor and materials for the manu¬ facture of Zagelmeyer System Concrete Brick is way below the cost of making common clav brick. Page Forty-four Page Forty-five : —— ■ Page Forty-six W’ff* Wl c. V y 4 t*»^aJJ ylj-l m/w I jJWi ^i.r’.' , ^ v- , • ' ■ ll ll' ? LMTr'j^' < T fc^rjE^ y yVV^Bgt ■ Ayflt* y>*157L?^Viv. v s\-^ j«(-