“99” Units Safety & Screw Type GiaybaR y SD “99°” Safety Type This unit has a patented locking mechanism that closes firmly on, and automatically centers the glass, but it allows sufficient flexibility for expansion due to heat. In action this mechanism is not unlike a camera shutter. It is very easily operated and when in place it is locked by a slight turn of a winged nut. (Lindsay U. S: Patent 1071537.) 9920 -SH “99” SAFETY UNITS ROM the top of the suspension to the bottom of the cased glass globe, the ‘‘99”’ Safety Unit is designed to give the best that can be secured in modern Direct Light- ing Enclosed Units. “Many years of résearch and practical experience in lighting offices, factories and public buildings, have enabled Graybar to put out:a fixture that combines beauty of design, correct engineering principles, the finest of ma- terials and exacting workmanship. The ‘‘99” gives a proper diffusion of light, without glare. It is sturdy in construction; easy to clean and care for, which gives it long life at very low maintenance cost. Lighting Features:—Excellent diffusion—highest effi- ciency without glare—Ideal distribution of the lght supplied by the lamp—30% above and 53% below the horizontal. Globe Features:—Best cased glass — graceful lines — maxi- mum strength—efficient design —no objectionable shadows, spots or streaks—low absorp- tion—uniform, pleasing color. Fixture Features: — Dust proof — bug proof — heavy gauge brass canopy and holder —brass chain — high polish heavy plated bronze finish— rich uniform) “color —— best patented safety holder-—No. see 14 stranded Deltabeston wire unattached. Typical ‘‘99”’ I; | Hanging Type Ceiling Type Unit SUES: Unit 5 Catalog sf Over Sig ; “ ; : Catalog | Over No. | All | Lamp Dia hee Fitter | Weight No. All 9975-SH | 3914” | 40-75 | 9” | 6%” | 4” 3 lbs. | 9975-SC | 10” | 9980-SH | 3914” | 75-100} 10” 6%” 4” 3 lbs. 9980-SC | 1014” | 9910-SH | 4014” |100-150} 12” 734” 4” 5 lbs. 9910-SC | 11144” | 9920-SH | 4034” 200 14” 9” Om 8 lbs. 9920-SC | 16” | 9930-SH | 4134” | 300 | 16” | 10” | 6” | 10%bs. | 9930-SC | 17” (a)—Catalog numbers indicate complete unit. (b)—Over all length is with glass. (c)—Units furnished complete with wire unattached and without lamps. (d)—Fix- tures and glass packed separately in individual cartons, ‘“99"> Screw Type The “99” Screw Type Unit is consistent in quality with the Safety Type. It is above the average screw type fixture in design and construction and will give the same splendid service as the ‘‘99’’ Safety Type. HE illumination characteristics of this unit are exactly the same as those of the ‘‘99”’ Safety Unit, the two fixtures having the same globe and socket position. The lower price is not due to any cheapening process but to the type of holder and refinement of finish. The screw holder furnished with this fixture is not the patented safety type but is made exceptionally strong, with oversize set screw lugs securely fastened to the shell. Where the fixture allowance is limited the ‘‘99’’ Screw Type Unit will give the same high class illumination as the Safety Type at a lower initial cost. Lighting Features:—The socket position and globe are exactly the same in this unit as in the “99” Safety Type which assures the same effec- tive illumination. Globe Features:—Same en- closing globes used as in the “99” Safety Type. Fixture Features:—Dust proofi—— bus. proof —— heavy gauge brass canopy and holder 9920-H brass chain—egg shell heavy plated bronze finish—uniform color—substantial screw type holder—No. 14 stranded Del- tabeston wire unattached. on in Dep’t. Stores “99” SCREW TYPE UNITS = ears — H _ | Complete Complete Hanging Type Glass Ceiling Type | Unit | Unit | —— - |___— | ee | Se ee Dia “Depth Fitter Weight ere BA 9975-H | 3214” | 40-75 | -9” | 614”| 4” | 31bs. | 9975-c | 10” | 9980-H | 3214” | 75-100] 10” | 614”| 4” | 31bs. | 9980-C | 11” | 9910-H | 3334” |100-150| 12” | 734”| 4” | 5lbs. | 9910-C | 12” 9920-H | 3434” | 200 14% |) 9” 6” | 8ibs. | 9920-C | 14” | 9930-H | 3534” | 300 16” | 10” | ‘6? 10 Ibs. | 9930-C | 1434” | 9950-H | 38” | 500 | 18” | 12” Simoes 16 thse) 9950-C. 417% (a)—Catalog numbers indicate complete units. (b)—Over all length is with glass. (c)—Units furnished complete with wire unattached and without lamps. (d)—Fix- tures and glass packed separately in individual cartons, “99°” Special Types The above illustrations will be recognized as modifications in de- sign of the standard ‘‘99”’ Safety Type described on the preceding pages. The 199-SH is the 99-SH with a cast metal spindle provided at the lower end of the chain. This sim- ple decoration is a touch that gives it dignity and distinction for bet- ter installations. The 299-SH is the 99-SH type with a tube suspension replacing the standard chain. This tube consists of 24-inch heavy brass cas- ing covering iron pipe and double cast brass loops at either end. This modification is often required for schools and hospitals. The modifications illustrated above with ‘‘99”’ Safety Type Units may also be applied to the Screw Type Units. “99” SPECIAL TYPES 29920-SH 19920-SH (Catalog numbers of complete units) Size | O all | eae | Tereth Safety Types (SH) Screw Types (H) 40-75 3914” 19975-SH 29975-SH 19975-H 29975-H 75-100 3914” 19980-SH | 29980-SH 19980-H 29980-H 100-150 404" 19910-SH 29910-SH 19910-H 29910-H 200 4034” 19920-SH 29920-SH 19920-H 29920-H 300 4134” 19930-SH | 29930-SH 19930-H 29930-H Over all length is with glass—Units furnished complete with wire unattached—Fixtures and glass packed separately in individual cartons. 2-K-26-10 Offices in 59 Principal Cities. ray “LM Mbddbddddddddddddddddddddddddda b Mdbdlididddddd aA ELECTRICAL SUPPLIES Printed in U.S. A. R Successor to Wesfern Electric Supply Dept. Executive Offices, 100 East 42nd St., New York GB-L-5