171465-A is referenced by 3 patents.
171,465. Dodds, E. H. Aug. 12, 1920. Actions.-In a pneumatic action as described in Specification 153,938, wherein a valve chamber 2 leading at 1 to the striking pneumatic is closed by an L-shaped cover-plate 3 having apertures 12, 13 closed alternately by a double-acting valve, a separate valve 15 is flexibly hinged under the atmospheric port 12 and rests on the valvemember 8 to be operated thereby. The valve comprises a flexible facing 16 the projecting edge 17 of which forms the hinge, and a metal plate 15 having a disc 15 of felt &c. on its back. The sides of the valve chamber 2 are recessed at 6 to receive the bearing-pin 7, which rests on a felt or other strip 9 and supports the valve plate 8, 11. The recesses 6 are covered by corners of the packing-strips 4 slit to permit ready insertion or removal of the pin 7.; The bleed comprises a tube inserted in the diaphragm cover and having a side aperture controlled by a pointed screw.