Abstract: A socket wrench drive extension incorporates a quick release and locking feature. The extension is used in conjunction with a ratchet drive and standard mechanics sockets for driving threaded fasteners. The extension uses a longitudinal control bar which bears directly or indirectly on a detent contained in a transverse bore at the driving end of the extension. The control bar fits in a channel on the exterior of the extension and is operated through the retraction of a spring loaded collar.

Abstract: A holder for mounting a plastic bag from a mower guide having a transverse handle and a pair of downwardly and forwardly extending legs, the holder having a rectangular frame defining a vertical opening for admitting a plastic bag therethrough which is folded along its upper edge about the fame and held thereon by a clasp which is mounted on an upright leg connected to the frame, the upright leg is hooked at its upper end over the handle and the side portions of the frame being provided with laterally extending hooks which hook about the legs of the mower guide, the frame being resilient and the laterally extending hooks being stretchable to resiliently embrace said side portion to hold the frame and bag assembly from bouncing loose when moving with the mower.

Abstract: An integral false ceiling for a refrigerated vehicle body using a sealed ductwork, flow restriction and bleed means to provide selective transmission of refrigerated air to one or more cargo compartments in the vehicle body and return of air to an air conditioning unit, enhancing temperature control and minimizing intrusion into the cargo compartments.

Abstract: A latch is disclosed which is both rugged and economical. The latch includes a flanged housing which acts as a bushing for a journal portion of an operator. The operator includes a narrowed and recessed handle portion. At the inner end of the operator, a generally planar striker is placed to the interior of a door to interact with the frame. The striker rotates with respect to the housing and is limited in rotation by a stop which interacts with the housing. The striker is fixed to the operator by connector means to prevent relative movement between them. The housing is secured to the door by securement means which draws the flange of the housing against the exterior of the door.

Abstract: A railway car train includes five railway car units comprising two end units and three intermediate units. Each end unit is configured for coupler connection to conventional railway cars. The car units are connected to each other by articulated connections wherein the ends of adjacent car units are supported on a single truck. Mating male and female side bearing arm structures are provided on adjacent ends of car units. The end structures of the car units have reinforcement structures to support side bearing arms in either the male or female configuration so that a single design of end structure may be used for either a male or a female configuration. The end structures are provided with offset shear plates having an elevated center portion to allow clearance for large-wheeled trucks while keeping the side structures of the car low enough to provide clearance for unloading the car unit.