GB253573A - Improvements to waggon tipplers - Google Patents

Abstract

253,573. Ellson, B. E. March 11, 1925. Tipping-apparatus. -Relates to tipping- apparatus according to Specification 250,695 in which a jointed cradle, Z, Y, X is hauled by the ropes O so as to grip the wagon against side and top supports W, V and to turn about a succession of pivots such as R, Q or to roll along a continuous path. The arrangement is such that the guide sheave J on the top frame X, Fig. 1, engages the rope O at all positions of the apparatus during tilting, and the positions of the turning centres are such as to avoid excessive pleasures on the side and top of the wagon and to permit of the hopper P being placed close alongside the tippler and well above ground level. The turning centres R, Q, the winch N, and balance weights E may be carried on the hopper and its framework. The top frame X may be extended at L to engage a stop M to hold it clear of the wagon when the tippler is in its normal position. The part L of the top frame may carry a balance weight, and balance weights may be provided on the hoisting rope. In modifications, the number and position of the turning centres and the position of the stop M are varied. As shown in Fig. 4, a prop K2 forms a support for the top frame in place of the stop M. and the hoisting rope passes over an additional guide sheave J2a on an arm 6 extending from the top frame. The forces in the rope O may in some positions of the apparatus produce a turning moment tending to reduce the pressure between the top frame and the wagon.