Conveyors: power-driven – Conveyor system for arranging or rearranging stream of items – By laterally or vertically moving successive items in...
Patent
1974-02-13
1976-05-18
Love, John J.
Conveyors: power-driven
Conveyor system for arranging or rearranging stream of items
By laterally or vertically moving successive items in...
198170, 198171, 198176, B65G 1900
Patent
active
039571530
ABSTRACT:
An improved pusher-type chain for a conveyor, the conveyor being of the type comprising an elongated base means having a bottom and upstanding side guides or flanges. The base means may be made up of two or more longitudinal sections joined together in such a way as to permit them to be shifted with respect to each other from side-to-side about the juncture therebetween and to be shifted vertically upwardly and downwardly with respect to each other about the same or other juncture. The pusher-type chain is a continuous chain adapted to be driven in such a way that one of its spans moves longitudinally along the upper surface of the base means bottom and between the upstanding side guides or flanges in a conveying direction whereby to advance the material being conveyed along the upper surface of the base means bottom. The chain itself comprises a plurality of rigid pusher elements of improved construction normally extending substantially transversely of the conveying direction. Adjacent pusher elements are joined together by a series of link elements, including a pair of strap links rendering the chain capable of double articulation (i.e., capable of changing conveying direction both horizontally and vertically) without the use of universal joints or link elements made of flexible material. Furthermore, the strap links enable the ends of each pusher element to shift horizontally to positions wherein the longitudinal axis of the pusher element lies at a far lesser angle to the conveying direction than hitherto possible, thus allowing one end or the other of the pusher element to avoid an obstruction lodged or accumulated at one edge or the other of the base means bottom with a minimum of stress on and a minimum of shortening of the conveyor chain.
REFERENCES:
patent: 2450501 (1948-10-01), Clarkson
Love John J.
The Cincinnati Mine Machinery Company
Watts Douglas D.
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