Multi-purpose spreader
AssigneeHarco Products, Inc.
InventorDane J. Harder
Life of this patent
Estimating the term…
Abstract
A multi-purpose spreader for use in handling manure, grain, corn or the like which has a self-contained hydraulically driven power unit actuated from a tractor power take off. A first single acting hydraulic cylinder raises and lowers a drip proof end gate at the rear of the spreader and a second double acting multi-stage hydraulic cylinder which is synchronized to operate with the gate opening cylinder pushes an upright discharge gate from the front of the spreader to the rear to discharge material on the floor of the spreader into beaters at the rear of the spreader when the end gate is in raised position. The beaters are rotated by a hydraulic motor in synchronism with actuation of the end gate and discharge gate to throw the material off the rear of the spreader.
Claims5
A farm material spreader adapted to be mechanically actuated from a power take off of a powered vehicle, which comprises a wagon box having a floor, a frame and confining walls on the front and sides secured to the frame, an upright push gate normally located at the forward end of the wagon box, an end gate pivoted at the rear end of the box to normally seal off the rear end of the spreader, a hydraulic system contained entirely on the spreader including a double acting multi-stage hydraulic cylinder directly connected to the push gate and adapted to reciprocate the push gate back and forth within the box to move the contents of the box to the rear of the box for discharge therefrom, a second hydraulic cylinder connected to the end gate and adapted to raise and lower the end gate, a beater secured to the box at the rear, a hydraulic motor connected to the beater to rotate the latter, a network of tubing to carry hydraulic fluid to the respective cylinders and to the hydraulic motor, a reservoir for the fluid, a filter, a pump to actuate the fluid, a control valve adapted to control the flow of fluid in the system, and when the pump is set in operation by manual actuation of the control valve and the power take off hydraulic fluid flows through the tubing to supply the fluid to the respective cylinders to automatically actuate the same in a synchronized manner whereby the end gate is pivoted upwardly to a position removed from the push gate when the latter completes its stroke at the rear of the spreader, and the hydraulic motor is simultaneoudly actuated to hydraulically rotate the beater.
A farm material spreader adapted to be mechanically actuated from the power take off of a wheeled vehicle which comprises a wagon box having a floor, a frame and confining walls on the front and sides secured to the frame, an upright push gate normally located at the forward end of the wagon box, an end gate pivoted at the rear end of the wagon box, a push gate hydraulic cylinder to actuate the push gate and an end gate cylinder to actuate the end gate, a beater secured to the box at the rear, a hydraulic motor connected to the beater to rotate the latter, a network of tubing carrying fluid to the cylinders and hydraulic motor, a control valve adapted to control the flow of fluid in the system, a control arm pivoted at the lower end to the frame of the spreader adjacent the forward end, a coil spring connected to the frame at the lower end and to the control arm at the upper end to hold the control arm in either a forward, retracted or neutral position, first and second plungers extending upwardly from the control valve forward of the control arm, first and second brackets located forwardly of the control arm in line with said plungers, means connecting each bracket to a respective plunger, elongated slots in each bracket with the slot in the first bracket being longer than the slot in the second bracket, pin means extending through the slots and forward extensions of the control arm to pivot the control arm to the brackets within said slots, a centering spring connected to the first plunger to prevent upward movement of the first plunger beyond a line where reverse flow of hydraulic fluid in the system would be effected to reverse drive the beater, and the control valve being manually movable to a forward position to initiate the flow of fluid through the system to the hydraulic cylinders and hydraulic motor and automatically operated thereafter to a retracted position to reverse the flow of fluid in the system and then to a neutral position to shut down the hydraulic system, and the limiting of the movement of the first plunger by the centering spring in the retracted position of the plungers effecting shut down of the rotation of the beater and flow of all the return fluid to the push gate hydraulic cylinder to quickly return the push gate to the forward end of the spreader, and means on the push gate engaging the control arm to move the latter to neutral position and shut down the hydraulic system.
Dependencies are inferred from the claim text.