Abstract:
A supporting feeder assembly for material handling machines primarily for use on soft ground when the material handling machine fastens. The feeder assembly comprises an elongate beam unit secured to the implement mount of the material handling machine disposed at the front of said machine. A carriage can move along the beam unit either by rolling freely or by positive displacement and supports a carrier assembly. If the front wheels of the material handling machine fasten the driver can raise them from the ground by lowering the implement mount and can drive the machine forward by means of the larger rear wheels or with the aid of an implement disposed at the rear of the machine, for example a digging bucket, as the carrier assembly engages the ground and the material handling machine moves forward in consequence of the beam unit running on the carriage. When the machine reaches its foremost position the driver can lower the front wheels and then repeat the entire cycle until the front wheels reach solid ground.
Abstract:
A leg mechanism and horizontal actuator therefor comprising a frame member, first, second, third and fourth elongate links arranged in a pantograph mechanism, with one corner of the pantograph providing the main mounting point for the leg mechanism, a pair of crank arms connected to two of the links and extending approximately perpendicular to the ends thereof adjacent the main mounting point, and a drive member connected between the first and second crank arms for controlling the angle therebetween.
Abstract:
A rubber-tired, outriggered vehicle for use as the mounting of a mobile crane is disclosed which has two pairs of telescopic outrigger beams on the opposite sides of the vehicle body, together with a lift cylinder coacting with each outrigger beam for raising and lowering the vehicle body, and an extend cylinder for extending and contracting each outrigger beam. The invention features a hydraulic circuit having two separate valves for independently actuating the two pairs of extend cylinders, in addition to another valve for the actuation of the lift cylinders, so that the vehicle can be crabbed by operating the three valves in a prescribed manner.
Abstract:
A walking machine comprises two pillars 8 and 11 normally resting on the ground and supporting a load 22 on a platform 21 eccentrically between the pillars. A lifting leg 5 is connected by means of ball joints to a foot and the platform and can be moved by means of two double acting hydraulic jacks to alter its inclination in two planes. In use the platform is first tilted by extending the lifting leg towards the load and at an angle. One of the jacks is then actuated to get the lifting leg vertical so that the platform drags at one end. The platform is then levelled and the process repeated for as many times as are necessary.
Abstract:
A traveling assembly, especially a wheel suspension, for a vehicle capable of rolling and stepping or walking travel upon a regular or uneven surface, e.g. for cranes, excavators, construction, earth-moving, mining and other machinery in which wheels are articulated at the ends of legs which, in turn, are pivotally connected to a support structure. The legs themselves are formed with telescoping support elements which can be extended and retracted while a fluid-pressure cylinder can be provided to pivot the arm which is articulated to the lower end of the leg and which carries the wheel.
Abstract:
A vehicle with articulated legs is provided for movement across a surface or through water. Each of the legs is adapted to move in at least two planes with reference to vehicle balance. The movement of the legs is controlled sequentially to effect movement over an uneven surface while maintaining the vehicle balance.
Abstract:
This invention relates to an universally steerable, ridable vehicle which may be designed for a variety of purposes, ranging from a child's toy to an automotive vehicle operable on a highway. The steering capability of a conventional, wheel supported automotive vehicle and the unavoidable limitations of that capability are well understood. The present vehicle, from a standing start, can be propelled in any chosen direction, forward, rearward, directly sidewise, or in any chosen oblique direction forward or backward relative to the direction in which the vehicle is pointed. It can also be steered like a conventional vehicle.
Abstract:
An improved snowmobile suspension system to facilitate fast cornering is described. The improved suspension system comprises throttle-independent tilt means to remove at least a portion of the forward part of the tread of the snowmobile to support said snowmobile on the front guide skis and the rear of the track propulsion system. A particularly useful device comprises lift means which lifts the forward part of the track. Pneumatic or hydraulic means are preferred lift means and may be actuated from a reservoir of high pressure fluid.
Abstract:
A walking vehicle is provided which comprises a main body having four corners, four leg mechanisms, one connected to each of the corners, a driving means for driving the leg mechanisms and a control means for controlling the driving of the leg mechanisms.
Abstract:
A ''''walking'''' vehicle having driving wheels connected to the same or individual power source which permits one wheel to be moved forward individually, or any number of wheels at a time, while the other wheels provide the reactive force. After all wheels have been advanced, the entire vehicle body is then moved forward with respect to the wheels. The invention described herein may be manufactured, used, licensed by or for the Government for governmental purposes without payment to us of any royalty thereon.