A mobile crane is disclosed, particularly adapted for a towing truck, as including a boom which may be extended or retracted in length and angularly related for lifting and towing purposes by a pair of hydraulic rams, which are specifically oriented for their full extent of movement at an acute angle relative to the plane of the bed of the truck upon which the hydraulic rams are pivotally secured. Extension and retraction of the boom is provided by a hydraulic ram mounted within the boom and arr...

A mobile grain silo for the transportation and storage of grain, granulated food and other such materials, wherein the mobile grain silo includes individual storage cells of a generally parallelogram shape constructed around a frame structure and having means for lifting on and off a mobile transport and for interconnecting the cells in stacked relation to one another. The individual storage cells having a loading door for filling and an exit door for discharging the contents therein and further...

A mobile revetment of vehicular form. Armor plate is normally stored in a stowed, retracted position on a low slung wheeled frame. Self-contained power means deploys the armor and controls its return to retracted position. The device has connections on its ends so that multiple units may be towed as a train for disposing in protective array. In a stowed condition units may be stacked one upon another for ease of transportation.

A mobile scaffold suitable for use in working at elevated positions on the outside or inside structure of buildings, the said scaffold being mounted on a supporting platform with means to automatically move the scaffold to selected elevated positions, the said scaffold working area remaining parallel to the platform area at all times; the said support platform having levelling means and independent motion means to move it from one location to another.

A straddle-type mobile hoist having loading slings operatively connected to automatically equalize the loading applied through the slings and adapted to vary the lateral spacing between slings.

A mobile winch for the lashing of loads, comprising a base, a drum rotatably mounted on the base, and a drive for rotating the drum relative to the base, the drum being provided with a first opening in the peripheral surface of the drum communicating with a second opening in one end of the drum, whereby the free end of a lashing cable or rope can be passed respectively through the first and second openings for winching.

A Mobile Cart/Workbench having a remotely controlled retractable support wheel assembly and a support frame adapted to support and transport doors and the like carried along with a carpenter's other woodworking tools.

A mobile spreader of the type drawn by a tractor includes a hopper mounted on a roller. The roller is provided with a jarring strip which imparts a jolt to the hopper on each revolution of the roller. This jolting action prevents bridging of the material in the hopper, knocking the hung-up material down into the lower portion of the hopper where an agitator and an impellor further stir up the material. The cooperative effect of the jarring strip, the agitator and the impellor is to provide a ste...

A towable caravan consists of a body which can be demounted from the trailer on which it is towed, and can then be mounted on legs to function as a stationary accommodation unit. The trailer is specially adapted so that when it is removed from under the caravan body a frame tent can be pitched upon its upper surface, which has a floor, to provide a second accommodation unit with the advantage over a conventional tent that it has a flat floor raised off the ground. Provided with the caravan are t...

A mobile antenna includes a radiating element and an inductance winding for tuning the radiating element for operation on a desired frequency. The inductance winding is supported within the base of the antenna by a core assembly and an overmold layer within which the turns of the winding are partially embedded. The winding is preferably formed with a relatively large diameter and of relatively heavy gauge wire, and the winding support core is preferably formed with a chamber concentric to the wi...