GB320664A - Improvements relating to aerial ropeways - Google Patents

Abstract

320,664. Main, G. A., and Main Ropeways, Ltd. July 19, 1928. Tip-buckets ; rotary tipplers.-A tip-bucket 5 or the like suspended from a carrier 2 on an aerial ropeway is tipped positively at a predetermined distance from a striking piece adjacent to the track by power transmitted from a driving member on the carrier. The driving member is preferably one of the running wheels. As shown, a flexible shaft 20a is adapted to be driven from the running wheel 1 and to drive gearing 21a 22a for tipping the bucket. The shaft 20a is connected to a rod 20, Fig. 2, to which is adjustably secured by a pin 24 a sleeve 19 carrying a toothed clutchmember 18. The running wheel 1 drives a worm wheel 8 carrying a feather key which engages in a slot in a screwed sleeve 9 carrying a toothed clutch ring 17. A half-nut 10<a> is pivoted at 12 and is brought into and out of engagement with the sleeve 9 when the arms 14, 13 engage strikers along the track. As the bucket approaches a dumping point, the half-nut is moved into engagement with the rotating sleeve 9, the latter is thereupon moved upwards and after predetermined movement the clutch-member 17 engages and passes beyond the member 18. During the work. ing engagement of the members 17, 18, the bucket is given a complete revolution by the gearing 21a, 22a. At a further point along the ropeway, the half-nut 10<a> is moved away from the sleeve 9 which then falls to its original position, the clutchmembers passing without moving the bucket. Specification 250,706 is referred to. The pinion 21a is threaded upon its axle so as to run down and engage the block 26 if the bucket overruns the flexible shaft. Movement of the pinion 21a upwards on its axle is limited by a collar or thrust bearing.