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 210
181 86 ELECTRIC RAILWAYS the brake-shoe a force F3= 3500X^^^^=4550 pounds The diagram represents an air power brake, and the hand-brakeapparatus, which operates independently of the power brake, isalso shown. The power-brake apparatus could be omitted withslight modification of the lever system and…
Electrical engineering
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