GB228221A - Improvements in or relating to apparatus for hoisting and tipping railway wagons - Google Patents

Abstract

228,221. Mitchell, F. G. Sept. 28, 1923. Rotary tipplers; gantries.-Relates to tipplers of the kind in which the rotary carrier is raised and then tipped by winding drums on the superstructure. The carrier e is arranged at one of the outer sides of the structure a without towers or pillars at the side of the carrier remote from the side towards which it is tipped. The winding mechanism c, c' is carried on a projecting portion a<1> of the superstructure, which overhangs the carrier, and the hoisting and lowering ropes d pass down under the carrier at f and up to an anchorage near the tipping axis g. The carrier is guided during hoisting and tipping by rollers i - - i3 engaging guides h, h<1>, h<2>, k on the superstructure. The wagon delivers into a bunker, hopper or shoot b for loading vehicles and trucks below or to one side thereof. Weights m guided in the superstructure are arranged to balance only the weight of the carrier and the carrier is lowered more rapidly than it is raised. The ropes m<1> carrying the balance weights m are connected to bent links o pivoted on the cradle at i' and provided with rollers r running in the guides h<1>. The wagon is held on the carrier whilst tipped by a fixed lateral supporting beam e<1> and a sustaining beam t carried on arms a pivoted on the superstructure and balanced by weights y. The beam t may instead be carried by the longer arms of a pair of levers pivoted on a horizontal axis, the shorter arms of the levers being engaged by the rollers i on the cradle. Specifications 194,812, 195,846, 209,444, and 228,956 are referred to.