| 摘要 |
372,040. Controlling change-speed gearing ; locking rods. THOMSON, B., Combe Close, Woldingham, Surrey. March 21, 1931, No. 8772. [Classes 80 (ii) and 80 (iii).] In control mechanism for change-speed gearing, the operative connection between control and striking members 1, 2, Fig. 2, is effected through a member 6 which serves to lock the striker 2, the lock being released by the member 1 in making a change. The lock member 6 is pivoted at 7 on a sleeve 4 of the striker 2, which slides on a fixed guide bar 3. The member 6 is shown as locking the striker in gear position with a dog 14 engaged with a recess 21 in the bar 3. The member 6 is held in locking position by a spring ball 28 pressing against a slope 17. In moving the striker 2 to the right to neutral, the first part of the movement of the control 1 rocks the member 6 on its pivot to disengage the dog 14. In the neutral position the member 6 is square over the bar 3 with the ball 28 engaging a medial notch 18 in its base. The member 6 slides over the bar 3 farther to the right, until another dog 15 slips into a recess 22. A modified form is shown in Fig. 4 in neutral. The bar 3 in this case slides and carries the striker, not shown. The dogs 14, 15 lock by engaging over the edges of a fixed transverse plate 32. The member 6 is releasably held in its three pivoted positions by a spring ball 36. |
