Material or article handling – Elevator or hoist and loading or unloading means therefor – Comprising means enabling additional movement of carrier or...
Patent
1979-10-29
1981-06-23
Saifer, Robert W.
Material or article handling
Elevator or hoist and loading or unloading means therefor
Comprising means enabling additional movement of carrier or...
414661, B66F 914
Patent
active
042747945
ABSTRACT:
A mobile lift truck for handling unpalletized loads comprising a tiltable load-carrying platform projecting forwardly from the main frame of the truck rotatably mounted so as to permit rotation of the platform about a generally vertical axis of rotation between respective rotatable positions substantially 90.degree. apart. A forwardly-facing push-pull frame having a slip sheet clamp is provided which does not rotate in unison with the platform, enabling the push frame to push loads forwardly off of the platform in both of the rotatable positions of the platform. Power-actuating circuitry is provided interconnecting the platform rotation function, push frame retraction function and slip sheet clamp release function so that the platform is prevented from rotating until the slip sheet clamp has been released and the push frame has been retracted off of the platform. Methods of application of the lift truck are also disclosed.
REFERENCES:
patent: 2699879 (1955-01-01), Bertram
patent: 2709017 (1955-05-01), Ulinski
patent: 2957594 (1960-10-01), Brenneman
patent: 3172500 (1965-03-01), Dolphin et al.
patent: 3645409 (1972-02-01), Sinclair
patent: 3672526 (1972-06-01), Hansen
patent: 3701446 (1972-10-01), Smith, Jr.
patent: 3741418 (1973-06-01), Gamundi
patent: 4205938 (1980-06-01), Olson
Cascade Corporation
Saifer Robert W.
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