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The general arrangement of a Westinghouse electric brake commonly used in trolleys at the turn of the century. (a) and (a') are the track shoes, (b) and (b') are the brake shoes, (c) is the magnetizing coil that receives current from motors running temporarily as generators, (d) and (d') are springs that the brakes are suspended from, and (e), (k), (h), and (f) are levers that assist with the movement of the brake system.

Electric Brake

The general arrangement of a Westinghouse electric brake commonly used in trolleys at the turn of the…

An air-brake system that was in use in the early twentieth century on trolleys. This model was recommended by the Christensen Company, a popular manufacturing company of the time. The diameter of the brake pistons were 6 inches. A and B are brake levers; C, X, and Y are tension rods that lessen the strain on the brakes.

Lever System

An air-brake system that was in use in the early twentieth century on trolleys. This model was recommended…