Abstract: The present invention relates to a device for preventing a wheel cap from loosening from a rim, whereby the wheel cap is mounted on a ring member which is insertable into the rim and provided with a plurality of anchoring members of resilient material that are hooked onto said ring member and include hook portions adapted to hook into a ring-shaped recess in the rim when the ring member is brought therein. To prevent that the ring member and the wheel cap may loosen from the rim when the wheel cap and/or the ring member bump into any obstruction, e.g.

Abstract: According to the present invention there is provided a removable camper shell apparatus for covering the bed of a pick up truck. The camper shell apparatus consists of a generally rectangular frame made of a plurality of interconnected tubular pipe members having a plurality of biasing members extending downwardly thereform. Biasing members removably couple and secure the frame to the walls of the bed of a pick up truck. A canvas, nylon or other weather-proof cover is provided and configured to fit over the frame. A continuous cord is disposed along the lower perimeter of the cover and attaches to the body of the truck by a series of hooks or removable securing devices.

Abstract: A mobile apparatus for sequentially exchanging selected consecutive groups of old ties in an existing railroad track for groups of new ties while retaining groups of old ties therebetween to support the mobile apparatus on the track, which comprises a continuously advancing bridge-like work vehicle having a machine frame defining an upwardly recessed portion between respective ends thereof and a respective swivel truck supporting each machine frame end. A continuous guide track is mounted atop the work vehicle and a power-driven tie transporting crane is mounted for mobility on the guide track.

Abstract: A compound railroad track wherein the head rail is easily replaceable without replacement of the supports, which comprise two extruded mirror-image L-shaped members, periodically spaced U-shaped separators, and a base plate, all suitably bolted and welded together.

Abstract: A sheet metal-type endless rectilinear motion rolling guide unit is provided, which unlike the prior art like unit, the structure is simple and compact, yet giving rise to high load resisting capacity and less slide resistance with markedly prolonged operation life. Such an advantage is derived from the employment of ball circulation passageforming spacer member to be assembled with the sliding table, which has a unique configuration and construction.

Abstract: An apparatus for supporting a vehicle includes a telescoping arm member extending the length of the vehicle, inversed v-shaped wheel supports positioned fore and aft of two wheels on a side of the vehicle, attachments to retain the assembly to the vehicle, and support receiving members for supporting the apparatus and vehicle, such as in a semitrailer. The attachments may include a ratchet and a hook.

Abstract: A trolley stop assembly is provided for use with an inverted power and free conveyor system having a trolley member driven along a track. A depending trolley dog is engaged by drive dogs on a drive mechanism for pushing the trolley along the track and is movable between upper and lower positions for disengagement and engagement with the drive dogs. The assembly includes a stop arm pivotally mounted within the conveyor system for pivoting about a horizontal axis. Provisions are made for lifting the stop arm into an upper position to engage a portion of a trolley dog on a trolley to be stopped to lift the trolley dog out of possible engagement with the drive dogs. The stop arm includes an upper cam surface with an abutment portion for braking the trolley by mating with a portion of the trolley dog. An actuator mechansim includes a cam engageable with the stop arm to pivot same between upper and lower positions. The cam member is actuated by a piston and cylinder arrangement positioned on a side of the assembly.

Abstract: A vehicle having an elongated fore-and-aft main frame from opposite sides of which laterally disposed and spaced apart rigid support portions project. The support portions are horizontally coplanar and are arranged in pairs so that each pair supports a bale between them, the spacing of the portions in each pair being such that the bale is supported with its axis horizontal and above the plane of the supports. The supports terminate in free outer ends to facilitate loading and unloading of the bales. Bale stops are fixedly carried by the main frame centrally between transversely aligned pairs of support portions so as to limit inward movement of the bales when loaded and carried by the vehicle.

Abstract: An aerial transportation system including two generally parallel endless aerial carrier and traction cables is disclosed in which apparatus is respectively associated with each of the cables for separately supporting each cable. The supporting apparatus associated with each cable each comprise at least one basic balance beam, at least one roller rotatably mounted at one end of the balance beam for engaging its associated cable and at least one support balance beam with the basic balance beam being pivotally mounted at one end on the support balance beam for pivotal movement about a pivot axis extending at right angles to the cables. A support structure is provided for the balance beams with the support balance beam being pivotally mounted on the support structure.

Abstract: A conveyor device for conveying articles along a predetermined path of travel having a running rail on opposite sides of the path of travel. A bus bar is below said running rails. A self-propelled carrier has driving wheels to roll on the running rails. The wheels are rotated by a single electric motor which receives power from the bus bar. Cover members overhang the running rails and wheels during operation, and interlock with the rail support member so that the cover may be readily removed by disengaging the interlock.

Abstract: A crane wheel is adjustably mounted in the web structure of a crane carriage, head carrier, or the like by a bearing holders on each side of the wheel. The bearing holders are individually, pivotably fixed to the web structure by aligned clamping sleeves above axle. Two pendulum-type bearings in the necks of the holders journal the wheel axle. Adjusting screws mounted on the carriage abut cam stops on the bearing holders to adjustably fix the orientation of the wheel axles, including the plane of rotation of the wheel.

Abstract: A sensing system for use on a tracked vehicle transporation system forms a sensitive floor beneath the lip of a platform. The floor is made up of a plurality of metal plates mounted on spring supports so that they can be slightly depressed if an abnormal load is applied to them. Such depression changes the state of a switch or like means through the intermediary of a cable and a lever.

Abstract: A railroad hopper car having bottom discharge doors, an elongated beam assembly along the bottom of the car, door operating levers to open and close the doors connected to the beam assembly and doors, and lost motion connections in the beam assembly which permit displacement of beam sections to open and close pairs of doors in a sequential but substantially simultaneous and automatic order, and a pneumatic drive to move the beam in opposite directions to open and close the doors.