Abstract: A suspension system for utility vehicles of the type in which the chassis is supported at one end on an oscillating axle with a central pivot, has the oscillation of this axle controlled by one or two extensible links each in the form of a hydraulic cylinder unit. The second vehicle axle has limited oscillation used to shuttle the spool of a directional control valve which determines the flow of pressurized fluid for operation of the hydraulic cylinder units(s). The control valve can also be electrically operated responsive to the closing of switches responsive to the oscillations of the second axle.

Abstract: There is provided a sensing system compatible with articulating axles whereby the angular difference between the axles is sensed by a limit switch. A spring loaded contact arm carried by one axle is used to trip a limit switch carried by the other axle.

Abstract: There is provided an improved fluidic drive circuit for a fluid powered vehicle arranged to limit flow to an unloaded drive wheel. A restricting orifice is mounted in parallel with a pressure sensitive control valve to provide fluid power to the motor. A trickle flow is provided through the restricting orifice to maintain a minimum pressure to the fluid motor. The control valve, sensitive to pressure at the fluid motor, provides full flow only when the pressure in the fluid motor is sufficient.

Abstract: There is provided an over-translation sensing and centering apparatus for a scissors lift work platform comprising a linear cam arranged with electronic sensing means to detect an out-of-balance condition. For transmitting the relative angular position of the scissors members to linear movement of the cam, there is provided a control member pivotally mounted to the cam having bar links pivotally mounted to each extremity and connecting the control member to each scissors member. As each scissors member extends, the angle of the members with respect to the base of the vehicle causes the respective extremity of the control member to shift. As long as the scissors members move in equal opposing increments, the control member mounted on the linear cam rotates only, but if one member moves more than its counterpart, the control member is caused to shift and thereby move the linear cam.

Abstract: A translating mobile work platform is provided having a telescoping scissors mechanism comprising a lower and upper member confined to telescope within an intermediate member and having a system to equalize the motion of said upper and lower members, and further comprising fluidic circuitry to control the motion of the limbs of the scissors to provide level translational motion of the work platform by feeding fluid pressure from the upper portion of one cylinder to the upper portion of the other.

Abstract: An automatic locking device is provided for a telescoping work platform that includes: a base frame, a middle frame and a platform frame, the locking device comprises a first sliding member mounted in the middle frame, a first notch in the base frame for receiving said first sliding member and a first cam on said platform for disengaging said first member from said first notch, it also comprises a second sliding member mounted to the middle frame, a second notch in the base frame for receiving said second member and a second cam on said base frame for disengaging said second member from said second notch.

Abstract: In a planetary wheel drive, disc braking is provided with the discs located outwardly of the gearing so as to be readily accessible for servicing. One set of discs is splined to the drive shaft, rotating faster than the wheel by the factor of the gear ratio, so that advantages comparable to all those advantages heretofore attained by high ratio planetary wheel braking are still attained, with the accessibility here achieved.INTRODUCTIONThe invention to which the present disclosure is offered for public dissemination in the event that adequate patent protection is available relates to braking for planetary wheel drives. Planetary wheel drives or final drives are commonly used in trucks and other heavy-duty vehicles and may have a gear ratio of the order of 5 to 1 which is considered very advantageous.