Implements or apparatus for applying pushing or pulling force – Hoisting truck – Single throw lever
Patent
1986-02-24
1987-09-01
Schmidt, Frederick R.
Implements or apparatus for applying pushing or pulling force
Hoisting truck
Single throw lever
254 2B, B60P 148
Patent
active
046903780
ABSTRACT:
An elongated main beam is provided with support wheels at its opposite ends and a parallelogram-type lift arm assembly is pivotally mounted from a first end of the main beam for swinging movement between a lowered substantially horizontal position closely overlying the central portion of the main beam and an inclined position in which a lifting head carried by the upper end of the lift arm assembly may be used to support one side of a vehicle in an elevated position. A slide or follower is mounted on the second end of the main beam and a fluid motor is operatively connected between the main beam and the slide for forcibly shifting the latter along the main beam toward the first end thereof. Force arm structure is pivotally connected between the follower and a midlength portion of the lift arm assembly and is operative to raise the lift arm assembly to a vehicle elevating position responsive to actuation of the fluid motor to force the follower along the main beam toward the first end thereof.
REFERENCES:
patent: 2610025 (1952-09-01), Mueller
patent: 2806613 (1957-09-01), Johnson
Hinson Virgil H.
Jarman Davis R.
Automotive Collision Tools, Inc.
Hartman Judy J.
Jacobson Harvey B.
Schmidt Frederick R.
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