Abstract: In a power shovel including a base unit; a support unit rotatably mounted on the base unit; a front end assembly including a stiffleg pivotally connected at a lower end thereof to the support unit, a dipper handle operatively connected to the stiffleg, a dipper pivotally connected to the dipper handle, a hoist frame pivotally connected to the stiffleg, and a hoist link pivotally connected at the ends thereof to the hoist frame and the dipper, the dipper handle, dipper, hoist link and hoist frame defining a four bar linkage; a crowd system operatively interconnecting the support unit and the front end assembly; a hoist system operatively interconnecting the support unit and the front end assembly; and control means mounted on the support means for operating the crowd and hoist systems to crowd, hoist, lower and retract the dipper, a pitch stop assembly comprising a collapsible tension member interconnecting the hoist link and dipper of the front end assembly for limiting the angular displacement of the dipper

Abstract: This invention is a hose fitting, a number of which can be applied to a long hose extending over the ground to protect it from damage as it is moved to and fro. Each fitting consists of a sleeve having a wheel mounted to rotate around it, and a carrying handle which is hollow to carry service lines.

Abstract: In a self-transportable aerial platform, an operator employs a handle for controlling the vertical, horizontal and lateral movements of the platform in order to place the basket or platform at a preferred location. The operator-controlled handle operates a linkage which actuates one valve of a control to produce a first mode of platform movement; the handle is movable in a second direction to displace separately and distinctly a second valve for a further mode of operation; and the handle can further be twisted or turned to effect a separate and distinct movement of a third valve for the final mode of platform movement. The linkage consists of parallelogram linkage having the capability that one of said links can serve as a pivot for the other link, both of said links can be pivoted in unison as part of a parallelogram linkage, and both links of the parallelogram linkage can serve as journals for twisting movement of the handle which effects the additional mode of platform movement.

Abstract: In a production operation, such as a molding operation, a device is used for moving both the molded parts produced and molds or similar elements used in the operation, between different working stations. The device includes support frames releasably engageable with the molded parts or elements to be moved and a mechanism supporting the frames. The mechanism extends vertically and can be lifted, lowered and rotated about its vertical axis. The movement of the mechanism is regulated so that the parts or elements being moved can be located in exact position at the working stations without any damage to the mechanism used in the moving operation or to the elements or items being moved.

Abstract: A model track section for model vehicles releasably interengageable in end-to-end connection with a like track section, wherein an end formation is provided having one side facing generally laterally, and resilient means is located obliquely along the laterally facing side for resilient deflection laterally toward the formation upon end-to-end interengagement of like track sections.

Abstract: An enclosure for a vehicle end opening disposed between two side walls includes a pair of bi-fold door assemblies, each comprising inner and outer panels hingedly connected to one another with the outer edges of the innermost panel in turn hingedly connected to a hinge rod normally disposed adjacent the outer limits of the end opening. Intermediate lock means are included with each pair of door panels for selectively precluding relative displacement therebetween and when actuated allows of folding of each pair of door panels to provide a collapsed juxtaposed relationship following which the folded door assembly may be pivoted about the hinge rod 90.degree. or until parallel to the vehicle side walls.

Abstract: A readily assembled and self-contained motorcycle rack assembly raises a motorcycle from ground level to a stored position on the carrying vehicle. A unique hinged socket connection and an adjustable contour bumper engaging assembly makes it possible to quickly install the rack. It has two inverted simultaneously operable ratchet type jacks which raise the rack assembly and coact with a retention bar to bring the motorcycle and rack assembly into a fixed locked position on the carrying vehicle.

Abstract: A fork carriage attitude adjusting arrangement includes a mounting tower secured to and extending upwardly from the forward end of a longitudinally extending frame. A lever arrangement is pivotally attached to the mounting tower and has a hydraulic tilt motor operatively connected thereto for adjusting its angularity relative to the mounting tower. A pair of vertically spaced parallel arms have their rearwardly extending ends pivotally connected to the lever arrangement and their forwardly extending ends pivotally connected to a mast assembly to maintain the mast assembly at a predetermined attitude relative to the lever arrangement.

Abstract: Portable hoist or winch apparatus comprises such mechanism having a frame carrying a drum for a cable or other flexible member, and load-carrying means which includes first and second pulley block assemblies. A hook-bearing first assembly, in normal use, depends from a loop of cable extending from the drum back into securement with the winch frame; a second assembly is disposed in the cable rigging intermediate the drum and the first assembly. The first pulley block assembly has at least two pulleys; the second pulley block assembly has at least one pulley. The cable extends serially from the drum to a pulley of the first assembly, thence to the pulley of the second, back to the second pulley of the first assembly, and thence to the frame.

Abstract: A railroad truck side frame includes spaced tension and compression members connected by vertical columns. The tension and compression members, as well as the vertical columns, define a window and there is a bolster extending through the window. One side of each vertical column has a widened area, with the opposite side of each vertical column being substantially coplanar with the side frame. The bolster has lugs projecting from both sides thereof on opposite sides of each column, with the space between lugs on each side of the bolster being substantially greater than the width of the side frame and slightly greater than the distance between the outside of the widened area and the opposite side of the vertical column.

Abstract: A dolly for lifting and transporting cumbersome objects such as barrels is disclosed having a wheel supported base and a pair of horizontally disposed arms supported on that base in cantilever fashion which arms are simultaneously movable in a vertical direction. An open ended object clamp for gripping the object to be transported is pivotably connected to the arms near the free ends thereof so that the object clamp may be rotated about a horizontal axis and the open end thereof directed downwardly to engage an object from above or that open end directed horizontally to engage an object from the side despite the fact that that object may be against a wall or other obstacle.

Abstract: A friction member for use in the bolster pocket of a stabilized railroad car truck has a slanted friction surface adapted to bear against the bolster within the bolster pocket and a vertical friction surface adapted to bear against the side frame. The slanted friction surface has a generally flat portion at the lower end thereof and a generally arcuate portion at the upper end thereof. The two portions of the slanted friction surface are tangent, one to another, with the point of tangency being located so as to insure full contact between the vertical friction surface and the adjacent side frame.

Abstract: A hopper is adapted to be mounted on the three-point suspension system of an agricultural tractor by pivoting the lifting links to pivots immediately beneath the hopper body which has downwardly extending arms to which are pivoted a link pivotally connecting same to the anchor pin from which the usual stabilizing link of the tractor is removed. This construction gives a four-bar chain with crossed links whereby the hopper may be raised from a horizontal position to an upright position (or vice versa) by operating the lifting links. The construction is also capable of adjustment. The contents of the hopper can be discharged in bulk or dispensed laterally by an archimedean screw located in the bottom of the hopper.

Abstract: A railroad crosstie is constructed from at least two individually distinct rail support blocks interconnected by a web system which is fastened to the blocks and which comprises at least one self-supporting rigid sheet member adapted to be buried in the roadway ballast when the tie is in place. The blocks are selected to support and secure rails in conventional manner, and the interconnecting web system holds the blocks in relative position in the roadbed. The rigid sheet member adapted to be buried in the roadway ballast is advantageously disposed or provided with means such as horizontal longitudinal corrugations to interact mechanically with the particles of standard railroad ballast, whereby the tie resists being withdrawn from the roadbed.

Abstract: A combined shoe holder and carrier having a pair of front and rear covers made from some lightweight rigid material. Each front and rear cover is attached together by an adjustable fastener which allows them to move in relation to each other thereby varying their size. A biasing spring hinge means attached to the bottom of the covers maintains the shoes in either a flat position or a folded position. The shoe holder has extendable handles which permit either carrying or hanging during storage. Flat heel and sole portions permit standing the shoe holder in an upright, vertical position or lying it in a flat, horizontal position. A bolt, whose head is permanently mounted to the inside of one cover, slides in and extends through a groove in the other cover, and varies the size of the shoe holder with an adjusting unit. A detachable cover extends over the opening in the top of the shoe holder.

Abstract: This invention relates to a vehicle guidance system where the vehicles incorporate wheels having tires thereupon to follow a track of predetermined cross-section. The vehicle is provided with sensors to continuously sense the lateral location of the vehicle relative to the cross-section of the track and the yaw angle of the vehicle with respect to the longitudinal axis of the track. A modulator receives the output of the sensor to drive the steering system of the vehicle in order to correct for deviations of the vehicle from its predetermined relationship with the track contour.

Abstract: Body-carried equipment, such as a television camera, is supported on a mount that engages the body at a first level, such as the shoulder; and the mount has a forwardly extending "panning" arm for directional control. From the forward end of the arm, an adjustable brace assembly extends (e.g., downwardly) to engage the body at a second level (e.g., waist level) spaced vertically from the first level. Adjustments are provided for elevational angle, tilt and forward-rearward balance of the equipment (camera).

Abstract: A continuous transport system characterized in that the vehicles providing passenger or goods transportation are passive vehicles without self-contained motors or braking devices, the drive for these vehicles when formed into trains being provided between stations by a head locomotive and a tail locomotive.

Abstract: A low noise, self-locking winch with a cylindrical cable drum having a cable wound around its periphery. The drum is rotated by a drive wheel which is fixedly mounted on a drive shaft. A latch wheel, having a smooth outer periphery, is slidably mounted on the drive shaft adjacent the drive wheel with a layer of frictional braking material positioned therebetween such that axial pressure on the latch wheel with respect to the drive shaft causes the latch and drive wheels to rotate as a unit. A crank is threaded onto the end of the drive shaft adjacent the latch wheel so that rotation of the crank in a winding direction forces the latch wheel against the drive wheel to rotate the cable drum. A pivotally mounted latch lever is resiliently biased against the smooth outer periphery of the latch wheel in a manner that causes the latch lever to cam against the latch wheel as the drum rotates in an unwinding direction thereby locking the winch.

Abstract: To facilitate transferring a massive crane boom from a regular crane carrier vehicle to an independent transport trailer, pivot pins for the rear ends of boom lift cylinders are held removably in journal boxes which are recessed into the crane turntable and are normally held captive in the recesses by shiftable locking dogs adapted to be extended over the tops of the journal boxes and to be retracted therefrom. The locking dogs are operated by turntable mounted power cylinders and safety means is provided to block accidental retraction of the locking dogs during normal crane usage.