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 122
and motor aremounted on a single cast-iron base, forming a very compact unit.Fig. 46 shows an electric hoist used in building construction. Anelectric drill is clearly illustrated in Fig. 47 connected by belt to therotary hammer shown in Fig. 48. The mechanism of the drill con- 104 MOTOR-DRIVEN… … Fig. 47. Electric Rock DrillCourtesy of Fort Wayne Electric Works r^\
Electrical engineering
Internet Archive · Northeastern University Library · Public Domain Mark 1.0. Free to use for anything.
