Abstract: An uncoupling cam is incorporated into a hook-type coupler. Couplers of this variety are typically found on railway transit vehicles, one hook-type coupler being fixed to each end of each transit vehicle. Moving two transit vehicles toward each other so that their ends come together will eventually cause their respective hook-type couplers to couple together automatically. It is in this manner that a passenger transit train is formed with each of its vehicles being mechanically linked to an adjacent vehicle. Each hook-type coupler has a pivotally mounted hook member that can be pivoted between a latch position and an unlatch position. A biasing means inside the hook-type coupler is used to keep the hook member normally biased to the latch position. The uncoupling cam features a solid body and a roller. The body of the cam has a uniform polygonal cross-section to an edge of which the roller is rotatably secured. The roller is adapted to rollably engage a surface of the hook member.

Abstract: An electrically operated hook-type coupler for attachment to an end of a railway transit vehicle for joining adjacent ends of a pair of such railway transit vehicles, in which a gathering core is provided at the forward end of a coupler head, with a hook member pivotally mounted within the gathering core, and being pivotal between a latch position and an unlatch position for engaging and disengaging a comparable hook member, and further including a spring to bias the hook member to the latch position. A driving device is also included within the gathering core for forcibly pivoting the hook member to the unlatch position to uncouple the hook member from any other hook member, while an electrically operated actuator is provided outside of the gathering core, which in response to appropriate signal, will activate the driving device to disengage the hook member. A lever arm is also provided to permit manual operation of the driving device to disengage the hook member.

Abstract: A conveyor system, in particular a suspension conveyor system, comprising at least two transport units adapted to be moved on rollers and interconnected by a disconnectable coupling, the coupling including two identically formed hooks which are each provided with a hook opening, one of said hooks being arranged by an associated base member on one of the transport units to be coupled and the other hook being arranged by an associated base member on the other transport unit to be coupled in such a way that their hook openings face each other, each hook being loaded by a spring and being connected to its associated base member by means of a hub for rotation about an axis coinciding with a centerline of the hub, each hub forming a locking member by, in a coupled condition, being adapted to be engaged by the hook opening of the hook not associated with said transport unit while the hooks, in an uncoupled condition, being adapted to engage each other, and to be rotated by this engagement under tensioning of the spr

Abstract: A mine car coupling assembly comprising a spring biased receiving assembly having a pair of jaw members mounted about a pivot point. The forward ends of the jaw members are beveled and tapered inwardly to form a hook configuration adapted to receive and hold an arrowhead shaped male member. Each jaw member's forward end is biased toward the other jaw member's forward end by a spring assembly mounted to both of the jaw members. The tip of the arrowhead member initially engages the jaw members of the receiving assembly and overcomes the spring assembly's force, forcing the jaw members apart. When the arrowhead has entered into the receiving assembly the hook ends are urged back toward each other by the spring assembly to engage the rear surface of the arrowhead member and hold the arrowhead member in position within the receiving assembly.