Abstract: A hanger trolley for supporting and transporting hanger-hung garments in a vertical and horizontal position is provided. The hanger trolley includes a load carrying member for carrying the at least one article, the load carrying member having a free end and rotating end; and first and second coupling members for coupling each end of the load carrying member to the rail system, wherein the first coupling member is detachable from the load carrying member and the second coupling member enables the load carrying member to be positioned in two different orientations.

Abstract: A retractable pusher dog for an overhead power and free conveyor system is provided. The retractable pusher dog comprises a body portion formed from a rectangular cylinder with a spring and pusher member disposed within the cylinder. When a force greater than the static spring force is applied to the pusher member, the pusher member retracts into the body portion thus reducing the overall height of the pusher dog. Due to its self-actuating retraction, the retractable pusher dog of the subject invention requires no modifications to the powered and free rails or to the load trolleys. The retractable pusher dog will prevent jamming of load trolleys by allowing the pusher dog to bypass an off-timed load carrier, introduced from a different powered rail, until it is properly aligned on the main rail. Also, the body plates of the pusher dog facilitates coupling the pusher dog to the drive chain without disassembling the drive chain thus reducing downtime of the conveyor system and labor costs.

Abstract: A switch rail for a trolley conveyor track system is disclosed, the switch rail comprising an inherently flexible rail segment joined to a straight rail segment, the switch rail being movable from first to second switching positions for connecting a first track section selectively with second and third track sections, the flexible rail segment embodying a rigid link for limiting flexure movement thereof to movements codirectional to that in which the axis of the straight rail segment moves when the switch rail is shifted between its first and second switching positions.