| 摘要 |
<p>1,020,977. Ratchet mechanism. KIENZLE UHRENFABRIKEN G.m.b.H. March 18, 1964 [March 27, 1963], No. 11405/64. Heading F2Q. [Also in Division G3] A ratchet wheel 2 is driven from an oscillating balance shaft 1 by the successive engagement of cam surfaces 3, 4 on. the shaft 1 with teeth 9 on wheel 2, the movements of the teeth 9 being limited by annular collars 7, 8. Projections 5, 6 adjacent cam surfaces 3, 4 position teeth 9, after movement, out of contact with the annular collars 7, 8. A brake comprises a spring 10 engaging a roller 11 on the wheel 2. Preferably the ratchet wheel and cams are of synthetic plastics.</p> |
