The lighting of armories and gymnasiums / information compiled by A.L. Powell and A.B. Oday. (1920)
General Electric Company, Edison Lamp Works · General Electric Co., Edison Lamp Works · leaf 9
becomes. Present practice in armories investi-gated varied from 300 to 1000 watt units; the 750 and 1000 wattsizes predominating. Type of Fixture Practically no fixture is necessary for this class of service andthe majority of buildings employ a simple steel cable as a support.In some of the older… … Fig. 6 Photograph Taken from Firing Point of Short Rifle Range. Targets IlluminatedLocally by 50-watt Mazda B Lamps in Angle Steel Reflectors Rifle Range The proper illumination of the rifle range is a subject of con-siderable importance and can scarcely be treated with a satisfactorydegrees of…
Lighting · Light bulbs · Light fixtures
Internet Archive · Building Technology Heritage Library · Public Domain Mark 1.0. Free to use for anything.
