GB920752A - Improvements in or relating to conveyors - Google Patents

Abstract

920,752. Conveyer chains. GEO. W. KING Ltd. Jan. 3, 1962 [Dec. 30, 1960], No. 44880/60. Class 104 (2). In a floor conveyer in which wheeled load carriers are propelled over a floor by an endless driven chain disposed beneath the floor, and in which the load carriers are provided with depending rod-like members adapted to project through a slot in the floor and to be engaged by driving dogs on the chain, the chain is offset laterally from the slot and is provided with laterally directed arms which engage with any depending rod-like member projecting through the slot. A chain 10, Fig. 1, is provided with pillar-like members 13 which carry arms 14 projecting to one side of the chain so that vertical abutment surfaces 15 on the arms 14 are disposed beneath a slot (not shown) in the floor over which the load carriers are to be moved. The surfaces 15 are arranged in oppositely directed pairs to form a space between the surfaces 15 of each pair in which a rod-like member of a load carrier may be engaged. Inclined cam surfaces 16 are also provided on the arms 14 to facilitate engagement of the rod-like members with the chain. Alternatively, each pair of oppositely directed surfaces 15, 16 may be carried by one member 13. The chain 10 is guided in a channel (Fig. 2, not shown) by rollers 21 carried by the members 13 and the chain is supported by laterally projecting skid plates 23 which engage with slots on either side of the channel. Intermediate the driving dogs idler members 25 with skid plates 26 may be provided. Instead of providing projecting arms on the chain 10 each depending rod-like member may have a laterally directed arm such that after introduction through the slot in the floor and rotation of the rod-like member, the laterally directed arm may be engaged with a driving dog on the chain.