Material or article handling – Load-transporting type vehicle and external means... – Involving movement of load by gravity from wheeled vehicle
Patent
1978-03-03
1979-07-31
Makay, Albert J.
Material or article handling
Load-transporting type vehicle and external means...
Involving movement of load by gravity from wheeled vehicle
254 89H, B65G 6742
Patent
active
041628713
ABSTRACT:
The apparatus of this invention relates to a platform device for lifting the side of a hopper wagon to facilitate discharge of fluent material, such as grain, therefrom. The apparatus includes a horizontal platform device onto which a wagon may be moved, the platform device having stationary and vertically movable sections. The movable section is positioned to support the front and rear wheels on one side of the wagon disposed on the platform device. The movable section in its first position is level with the stationary section and in its second position is elevated thereabove. A pair of power-lifting mechanisms is connected to and support the opposite end portions of the movable section to maintain the latter level and selectively to raise it above the level of the stationary section. The power-lifting mechanisms each include two upright telescopically engaged guiding tubes having upper and lower ends, respectively. The upper end of one tube is rigidly secured to the movable platform section and the other tube is secured at its lower end to a stationary frame. A double acting fluid power cylinder is positioned within the tubes and has the piston rod operatively connected to one and a cylinder operatively connected to the other of said tubes whereby actuation of the power cylinder telescopes said tubes thereby selectively to raise and lower the movable platform section.
REFERENCES:
patent: 1494041 (1924-05-01), Trapp
patent: 2291126 (1942-07-01), Williams
patent: 4050593 (1977-09-01), Kalke
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