GB710304A - Improvements relating to elevators or conveyors - Google Patents

Abstract

710,304. Endless conveyers. HENDY, Ltd., P. March 17, 1953 [Dec. 17, 1951], No. 29508/51. Class 78 (1) A conveyer for powdered or granular material comprises a number of flat-topped cups which are pivoted to an endless driving chain in such a way that when loaded they will automatically, under the effect of gravity, assume a position in which their tops are substantially horizontal irrespective of the angle of the chain, and the angular position of the cups is positively controlled over a portion of their travel at each end of the operative run of the chain so that each cup scoops up and discharges a load at the appropriate points. Cups 11 are pivotally mounted between a pair of endless chains 16 passing round sprockets 25, 29 mounted on shafts 26, 30 at the ends of a jib arm 1 pivotally mounted on a chassis 2 and adjustably supported by a pair of parallel struts 3 provided with rollers 5 bearing against the arm 1. Each cup is controlled by a pair of helical springs 17 acting in opposition to one another, the springs being relatively weak so that when loaded, the cups hang as shown along the upper run of the chains. As each loaded cup approaches the end of the arm 1, its side 13 engages a rubber disc 35 freely mounted on the shaft 30 and is inverted to discharge its contents. As an empty cup moves away from this disc, it is turned by the springs 17 to the position shown in the lower run in Fig. 1 so that when it reaches the lower end of the arm 1 its side 14 is approximately tangential to a disc 36 freely mounted on the shaft 26. As it rolls round the disc its mouth turns to a horizontal position whereby the cup performs a scooping action as it passes through a hopper 37 containing the material to be loaded so as to fill itself. The struts 3 are supported by wire ropes 6 passing round pulleys 7, 8 on the struts and jib arm respectively and connected to a winding spindle controlled by a hand wheel 9.