Twentieth century hand-book for steam engineers and electricians with questions and answers; a practical non-technical treatise .. (1913)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & company · leaf 961
peed until the open-ing of the final switch brings the car to a positive stop,* applying the brake. This operation is entirely independent 932 Steam Engineering of the operator in the ear and is effective even though thecar operating device be left in the full speed position. Another feature of… … Fig. 381otis patented spring return oil buffer are arranged to bring either the car or the counterweight toa positive stop^ through the telescoping of the buffer—thisoccurring at a carefully calculated rate of speedy, which isregulated by the escape of oil from one chamber of thebuffer to another.…
