Patent GB-190324099-A (GB)
Title: Improvements in Change Speed Driving and Reversing Gear.
Inventor: BAYLEY ARTHUR LIPSCOMB
Filed: 1903-11-06
Granted: 1904-11-03
Abstract: 24,099. Bayley, A. L. Nov. 6. Motor road vehicles.-In a change-speed and reversing gear for motor road vehicles &c., a frame 3, 4, carried by the driving-shaft 1, serves as a support for one or more countershafts 6, 7. The countershafts carry toothed wheels 14, 16 in gear with a wheel 15 on the driven shaft 2, and a series of tcothed wheels of varying diameters 8, 9,10 and 11, 12, 13 in gear with wheels 17, 20, 23 loosely mounted about the shaft 1. The wheels 17, 20, 23 are provided with sleeves to which are secured brake drums 19, 22, 26. The gear-wheels run in an oil bath 25. The drum 19 is coned on the interior to receive a conical clutch member 30 coupled to the shaft 1. When the clutch is in engagement, the gear-wheels are locked and the shafts 1, 2 are driven at the same speed. Different speeds and also a reversal motion are obtained by releasing the clutch and locking one or other of the brake drums so as to fix one of the wheels 17, 20, 23, the shaft 2 then being driven through the epicyclic gear which is brought into action. A lever 32, moving over a notched quadrant, is employed for operating the clutch and for locking any required brake drum. The clutch member 30 is coupled by links, forming toggle-levers, to ears on a sleeve 39, which may be coupled by a right and left handed screw connection to a collar fixed on the shaft so as to be adjustable. On the sleeve 39 slides a collar 42 provided with slotted arms engaging the joint pins 51, 52 of the toggle-levers. Upon moving the collar 42, the toggle-levers are straightened out or contracted so as to move the clutch members into or out of engagement. When in the engaged position, the joint pins 51, 52 engage parallel portions of the slots in the arms. The collar 42 is actuated by a fork carried by a shaft 45 connected to a sliding bar 64. The shaft 60, to which the lever 32 is fixed, carries a rod 61 provided with a roller 62 in engagement with a slot in the bar 64. The part 63 of the slot is struck from the shaft 60 as centre, and the other part 67 of the slot is formed as a notch. When the roller is moving in the part 63 of the slot, the bar 64 is not actuated, but when the roller comes into engagement with the notch 67, corresponding to a movement of the lever 32 between the notches 55, 56 of the quadrant, the bar 64 is moved and serves to operate the clutch. Each of the brake drums is provided with a strap 27, 28, 29 having upturned ends bestraddled by a tubular link 80, 81, 82. A set-screw in the end of each link engages one end of the brake strap, and a push-rod passing through the link engages the other end of the strap. Cams 77, 78, 79 on a shaft 74 are adapted to engage between the push-rod and a roller on the link to draw the end of the brake strap together so as to fix the drum. The shaft 74 is operated by a pinion thereon engaging a toothed segment 75 on the shaft 60, the cams being so arranged that the brakes are applied in succession as the lever 32 is moved over the quadrant between the notches 56, 59. According to the Provisional Specification, levers actuated by the clutch collar may replace the slotted arms for moving the toggle-levers, and levers may replace the tubular links and push-rods for actuating the brake straps.