Patent GB-960705-A (GB)
Title: Improvements relating to apparatus for hauling wagons
Inventor: POSTINS JOHN GEORGE
IPC: B61J3/08
Filed: 1960-09-30
Abstract: 960,705. Wagon hauling apparatus. NORTONS-TIVIDALE Ltd. Sept. 14, 1961 [Sept. 30, 1960], No. 33654/60. Heading B7L. In railway wagon haulage apparatus in which a bogie runs on a narrow track between rails on which the wagons run, two lengths of rope 5, 6 being connected to the bogie, and extending in opposite directions along the narrow track so that when the lengths of rope are tensioned arms 11, 12 on the bogie are caused to move outwards to engage with the wheels, as 56, of a wagon by a mechanism that is movable as a whole along the bogie body 1, by the tensioning of the lengths of rope 5, 6, legs 34, 35 provided to engage an axle 55 of the wagon are raised by mechanism operated by relative longitudinal movement between the bogie body 1, and the wheel engaging arms, the legs, on reaching their raised position being being held there by a locking device which is only releasable by reduction the tension in the lengths of rope 5, 6. The bogie runs on wheels 2 and the legs 34, 35 are adapted to engage the axle 55 from the opposite side to that from which the arms 11, 12 engage the axle wheels. Operation of the wheel engaging arms 11, 12. The lengths of rope 5, 6 which may be part of a continuous rope are secured to a part 7 of the body 1, and to a cross-head 4, slidable on members 3 fixed to the body 1, respectively. In operation, as the lengths of rope are tensioned the cross-head 4 slides on the members 3 against the action of a spring 8. The arms 11, 12 are sector-shaped and are pivoted about fulcrums 13, 14 respectively. As the cross-head 4 moves, rollers 9, 10 engage with the arms 11, 12 and pivot them to the positions shown in Fig. 1b In so doing cables 17, 18, fixed to the arms 11, 12 respectively, are wound up against the action of springs 23, 24. Rollers 15 on the arms 11, 12 then engage the wagon rails and rollers 16 are in position to engage with the wheels of a wagon. Operation of the engaging legs 34, 35.-The arms 11, 12 are mounted on a cross-bar 27 which is slidable on the members 3 and with the arms in the positions shown in Fig. lb, when the rollers 16 contact the wheels of a wagon the cross-bar 27 is moved to the left in Fig. 1b relative to the bogie body 1. In so doing, cables 28, 29, fixed to the cross-bar 27 are drawn up and this moves plates, as 30a, between the positions shown in Figs. 2b and 2c, about a pivot 32. Each plate 30a is pivotally connected as at 30b to one of the legs 34 or 35 which carry rollers 36, 37 to engage with the axle 55. Each leg 34 or 35 is also connected through a link as 30c to a buffer spring 53 or 54 respectively, which absorbs the shocks as the legs engage with the axle. Locking device for the legs 34, 35. The crosshead 4 carries extensions 43, 44 through which pass rods 41, 42 connected to arms 39, 40, which carry a subsidiary cross-head 38 with rollers 49, 50. As the cross-head 4 is moved initially by tensioning of the lengths of rope 5, 6, the rollers 49, 50 are held by cam stops 51, 52 respectively, which are fixed to the plates 30a and this compresses springs 45, 46 between the extensions 43, 44 and plates 47, 48 carried by the rods 41, 42, as shown in Figs. 1b and 2b. When the plates 30a are raised by movement of the cross-bar 27, the rollers 49, 50 move under the cam-stops 51, 52 under the action of the springs 45, 46 to lock the legs 34, 35 in their raised positions, as shown in Fig. 2c, whereupon a wagon may be moved to the left in the drawings by movement of the lengths of rope 5, 6. Release of the arms 11, 12 and legs 34, 35.- If the tension in the lengths of rope 5, 6 is reduced the cross-head 4 slides on the members 3 to the left in the drawings under the action of the spring 8, and the extensions 43, 44 abut the arms 39, 40 and force the rollers 49, 50 from under the cam stops 51, 52. The crosshead 4 allows the arms 11, 12 to pivot inwardly under the action of the springs 23, 24 and the legs 34, 35 can then fall under gravity to release the wagon axle 55. Specifications 724,152 and 815,423 are referred to.