| 摘要 |
<p>966,169. Hooks. BROWN LENNOX & CO. Ltd. April 26, 1963, No. 16620/63. Addition to 950,589. Heading F2H. The hook of the parent Specification is modified so that the two-armed hook member 3 is pivoted at 4, the arm 5 having an arcuate shoulder 6 for engagement with a hook-retaining roller 7, mounted on a spindle 8 between two radius arms 9 pivotally secured to side plates 1, 2 at 10. One arm 9 forms part of a bell-crank lever 11, the other arm 12 of which carries a roller 13 which co-operates with a slot 14 in a release lever 15 pivoted to plate 1 at 16. Lever 15 is actuated by an operating lever 17 pivoted to lever 15 at 18 and a latch 19 is also actuated by lever 17 controlled by a Bowden cable 26, In operation, hook member 3 is held against release by roller 7, Fig. 1. Cable 26 is pulled, lever 17 pivots about pivot 18 and releases latch 19 from pin 25. Face 28 on lever 17 engages face 29 on lever 15 and the latter is pivoted about pivot 16. Roller 13 moves out of the short leg into the long leg of slot 14 and roller 7 releases shoulder 6 of hook member 3 which then pivots about pivot 4, the forces acting on the hook member assisting this release. The hook is pivoted at 31 to a coupling 32 having legs 34, a guard 33 is provided for the release mechanism and a buffer pad 35 covered with resilient material is provided.</p> |
