| 摘要 |
1516309 Cammed levers C W WARD 8 Sept 1975 [23 Sept 1974] 41352/74 Heading E2A [Also in Division B8] Lever 28 is pivoted at one end on rod 30 held by support 26 and bears at its free end a strip 14. Cam 18 is mounted on pivot 20 so that its camming surface can bear on the lever. Wheel 34 is mounted on the same axis 20 and rotates with the cam. Wheel 36 is pivoted eccentrically around rod 38 and falls under its own weight into contact with the wheel 34, jamming it so that the cam cannot be moved away from the lever, only towards it. For Figure see next column |
