Abstract: A multiple point latching system, for use with single or multi-door enclosures, which utilizes a plurality of combinational cam-pinion latch members which are rotatably mounted to the inside surface of the door and simultaneously driven by an elongated rack which extends between such latches and disconnectedly inter-engages therewith. Each combinational cam-pinion latch includes a plurality of teeth which disconnectedly inter-engage with apertures in the rack to cause simultaneous rotation thereof. A handle which is connected to the door and accessible from the exterior thereof drives one of the latch members which in turn causes movement of the rack and consequent rotation of all other combinational cam-pinion latches. Such latches are rotatably mounted at spaced locations along the free peripheral portions of the enclosure door.

Abstract: A sealed lay-in wireway comprised of channel members secured together in end-to-end relation with sealing flange gaskets thereinbetween and having longitudinally spaced covers having resilient gaskets extending continuously along their periphery and having a pivotally mounted bridging member extending along their open sides between the adjacent ends of their covers which shiftably mounts a sealing plate thereunder, the sealing plate having gasket material at each of its ends which bears against inwardly extending flanges of the channel members when drawn upwardly by a camming mechanism carried by the bridging member, the upper surface of the sealing plate at the same time bearing against gasket material carried by the ends of the covers to cooperatively perfect a seal at all of the joints.

Abstract: A generally rectangular shaped beaver tail platform is supported in inclined relation from the rear end portion of a trailer. Locking elements on the beaver tail platform and trailer releasably lock the beaver tail platform on the trailer. Ramp members are pivotally mounted on the rear end portion of the beaver tail platform.