Abstract: A conveyor mechanism having a conveying surface that is supported for movement along a rectilinear path and which is pivotable about a horizontal axis for positioning the conveying surface at various points in a container so as to facilitate filling thereof.

Abstract: A roller frame for a crawler tractor for supporting the body portion of the tractor and including a pair of laterally spaced and parallel side rail members rigidly interconnected to form an elongated unitary member. Each of the side rail members have an upper edge and a lower edge with the latter having at least two generally U-shaped cut-out portions formed therein so as to provide a front support surface, an intermediate support surface, and a rear support surface. A plurality of rollers are adapted to be supported in each of the cut-out portions and a shield extends between each adjacent pair of support surfaces and is fastened thereto so as to enclose the lower portions of the rollers and prevent rocks and the like from gaining access into the roller frame.

Abstract: A valve assembly for an exhaust system of a dump vehicle having a chassis supporting an operator's cab and a pivoted material-handling body. The valve assembly is carried by the chassis and adapted to direct exhaust gases upwardly into the hollow interior of the body when the latter is in a lowered load-retaining position and is adapted to direct exhaust gases toward the ground when the body is in a raised dumping position.

Abstract: A scraper bowl having a movable bottom floor section that is supported at each side thereof by a carriage that is actuated by a horizontally oriented hydraulic cylinder mounted on the side wall of the scraper bowl and located forwardly of the floor section.

Abstract: An elevating scraper having an elevator device provided with a pair of endless flexible belt members each of which is entrained about a drive sprocket wheel and the idler sprocket wheel. A plurality of equally spaced teeth are secured to the inner surface of each belt member for meshing engagement with both sprocket wheels and each pair of adjacent teeth pivotally supports a flight member at the outer surface of the belt member.

Abstract: An extractor device in the form of an attachment that is adapted to be slidably and pivotally supported by one of the two forks of a fork lift truck at an angle relative to the longitudinal axis of the truck so as to permit the latter to approach a rack at an angle, have the extractor device engage the underside of the rack, and permit the fork lift truck to apply a substantially straight-line horizontal pulling force on the rack as the fork lift truck moves in a rearward direction along a curved path.

Abstract: An article gripper mounting device for a multi-axis manipulator that is attachable to the wrist assembly of the support arm and allows the manipulator to be used for moving articles along a straight line located in a substantial vertical plane without requiring concurrent movement of the support arm. The mounting device includes a carriage that is rotatably supported by a ring member combined with the wrist assembly and is movable along parallel guide rods through a linear actuator for providing the straight line movement.

Abstract: A sprocket wheel for use with an elevator device that employs endless flexible belts having a plurality of teeth attached to the inner surface thereof. The sprocket wheel includes a disc which has the periphery thereof formed with planar and arcuate surfaces and has driver members spaced outwardly from the opposite sides of the disc for engaging the teeth of the belt.

Abstract: An earthmoving scraper including an overhung tractor and a trailing scraper bowl in which the latter units are respectively provided with a front axle and a rear axle having a pair of driven wheels. The rear axle of the scraper is rigid with the scraper bowl while the front axle is supported by a suspension including a leading arm the front end of which is fixed with the front axle and the rear end of which is supported by the tractor frame for pivotal movement about a transverse horizontal axis located below a horizontal plane passing through the rotational axis of the front wheels. Spring means are provided between the front axle and the tractor frame for cushioning movement of the front axle about the aforementioned transverse horizontal axis.

Abstract: An apparatus for transferring articles from a lower horizontal conveyor to an upper horizontal conveyor that includes a first drive means having a flexible carrier provided with lifter members arranged in horizontally spaced relationship for receiving articles from the lower conveyor and for moving the articles from a first position adjacent the lower conveyor to a second position adjacent the upper conveyor. Second drive means are provided which are operatively connected to the first drive means and also include a flexible carrier which has an ejector for discharging one article from the lifter members onto the upper conveyor when the article is in the second position. An electric motor is connected to the first and second drive means and is included in a circuit which has suitable switches for energizing the motor when an article is located in the first position and deenergizing the motor after an article is discharged by the ejector.

Abstract: Apparatus for loading and securing a vehicle in a shipping container that includes a latch mechanism having a lock member pivotally connected to the container for restraining tie-down devices. The lock member is formed with an actuator lever that is movable between a first position wherein the lock member is in a locked position and a second position wherein the lock member is in an unlocked position. A pusher bar member is provided for loading the vehicle into the container and includes cam means for automatically moving the actuator lever between the locked and unlocked positions.

Abstract: A latch mechanism for use with a tiltable seat having the forward end thereof supported by a base for movement about a transverse horizontal axis. The latch mechanism includes a pair of overlapping lock members pivotally interconnected for relative movement in a scissors fashion with each lock member having a lower portion formed as a J-shaped hook and an upper portion having an opening therein. A spring urges the lower portions of the lock members towards each other into a locked position with the base and a release member having an inner end extending into the openings in the upper portions of the lock members causes the lower portions to be spread apart against the bias of the spring so as to place the lock members in an unlocked position.

Abstract: A latch mechanism for a closure member that has a lever arrangement for connecting a main bolt to an auxiliary bolt. The two bolts are retractable together against the bias of a spring which acts through the lever arrangement to provide increased extension of the main bolt when the auxiliary bolt is maintained in a retracted position.

Abstract: A tensioning mechanism for the chain of a scraper elevator device that includes a pair of pivotally interconnected lever arms which support guide rollers. The lever arms are movable by an adjuster link in a scissors fashion for maintaining tension on the chain.

Abstract: A tilt cab automotive vehicle has a latching device comprising a toggle clamp operable to clampingly engage a frame portion of the vehicle with a portion of the tilt cab to restrain the cab from inadvertent tilting during normal vehicle operation. Preferably an assembly utilizing two such devices interconnected by a linkage is provided, and is operable from one side of the vehicle.