Cyclopedia of applied electricity : a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric railways, power stations, switchboards, power transmission, alternating-current machinery, telegraphy, etc. (1916)
American Technical Society · Chicago : American Technical Society · leaf 287
int where the cable leaves for the border and at this point a suit-able junction box should be provided. The method of bringing thecable from this box and also of leading it into the border structureshould receive special attention to prevent undue strain being broughtto bear upon it at these… … Fig. 128. Section of Theater Footlights Stage Pockets. Stage pockets (see Fig. 130) are iron boxes,having trap doors flush with the stage floor and containing receptacles
Electrical engineering
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