GB386373A - Improvements in or relating to loading machines for use in mining, quarrying and forlike purposes - Google Patents

Abstract

386,373. Endless-chain mine conveyers. BRITISH JEFFREY-DIAMOND, Ltd., Stennard Works, Wakefield, Yorkshire.-(Jeffrey Manufacturing Co. ; Columbus, Ohio, U.S.A.) Oct. 1, 1931, No. 27380. [Classes 78 (i) and 78 (iv).] Relates to mining and quarrying machines for gathering material lying in an elongated pile and loading it on to a delivery conveyer, in which a gathering conveyer, comprising a frame carrying sprockets for driving an endless chain supporting scraper flights for feeding the material to the delivery conveyer, is moved bodily parallel to the delivery conveyer by a cable passing round a winding drum on the frame. According to the invention, the gathering conveyer 10 is moved relatively to the delivery conveyer 138 by a cable 81, anchored to the frame at 95 and passing round a sheave 156 on a roof jack 157 to a winding drum at 50, the conveyer 10 being maintained perpendicular to the conveyer 138 by a cable 111 anchored at 158 and wound on a drum 106 controlled by a hand friction brake. The anchorage 95 and the drum are positioned at the top of the frame so that the tension of the cable 81 will tend to tilt the conveyer 10 about its longitudinal axis and enable the material to be gathered more effectively. The winding drum may be driven at two or more speeds by an electric motor through epicyclic gearing. The conveyer 10 is guided along rails associated with the conveyer 138 by a vertical V-shaped plate, the rails comprising a number of removable abutting sections. The drum 106 may be mounted on either side of the conveyer 10 so as to enable the conveyer to gather material in a reverse direction of travel, and be used on either side of, the conveyer 138. Specification 364,118 is referred to.