POWER AND FREE CONVEYOR SYSTEM

摘要

A power-and-free conveyor system of the type having work carriers each consisting of coupled front and rear trolleys adapted to be propelled along a track by lugs on an overhead chain drive and each adapted further to be disconnected from the drive in a localized close pack section of the conveyor by a cam plate on the rear trolley of the preceding carrier, and wherein the drive and the cam plate of each carrier have novel means which are uniquely cooperative to prevent the carrier from back-sliding on inclined portions of the track in the event the front trolley thereof inadvertently becomes uncoupled from the drive and also to more effectively and efficiently transfer the carrier through a switch point from one conveyor to another or from a conveyor onto a spur track for storage or the like.