As the drum is re- other bar, the latter being held down, to keep the trap volved the pitman is forced to the position shown in door closed, by a hand lever, engaged by a vertical toothed bar. Upon releasing the lever from the toothed bar, the trap door may be readily raised or removed, flow pipe… … GILFILLAN’S SAFETY CAR. tric, and having a limited rotary motion thereon. McCARN'S MECHANISM FOR RECIPROCATING The eccentric has a limited independent motion upon PLUNGERS. and, iron steps or rails being attached to the side of the shaft, and the hand wheel has a rotary motion the car, on both the…
Internet Archive · Public domain (published before 1931). Free to use for anything.
