Auxiliary lift adapter

Details Auxiliary lift adapter Auxiliary lift adapter

1982-09-28

1985-07-02

Watson, Robert C.

Implements or apparatus for applying pushing or pulling force

Hoisting truck

Single throw lever

254122, B60P 148

Patent

active

045263442

ABSTRACT:
An auxiliary lift adapter (10) comprises spaced, parallel top load beams (40), bottom load beams (30) positioned beneath the top load beams, and scissors mechanisms (50) for raising and lowering the top load beams (40). Each scissors mechanism (50) comprises an exterior arm (52) pivotally connected to its bottom load beam (30) and slidably connected to its top load beam (40), an interior arm (54) pivotally connected to its top load beam (40) and slidably connected to its bottom load beam (30), and a pin (56) pivotally interconnecting the midpoints of the arms. Hydraulic cylinders (76) are provided for actuating the scissors mechanisms (50) and include safety locking valves for preventing operation of the cylinders in the event of loss of hydraulic pressure.

REFERENCES:
patent: 2355341 (1944-08-01), Trimbach
patent: 2417553 (1947-03-01), Jensen
patent: 2471901 (1949-05-01), Ross
patent: 2764869 (1956-10-01), Scherr
patent: 2920773 (1960-01-01), Knabe
patent: 2931519 (1960-04-01), Beach
patent: 2937003 (1960-05-01), Croll
patent: 2940769 (1960-06-01), Taylor
patent: 2956408 (1960-10-01), Fowler
patent: 3341042 (1967-09-01), Carder
patent: 3472547 (1969-10-01), London
patent: 3524556 (1970-08-01), Miller
patent: 3758076 (1973-09-01), Tranchero
patent: 3928946 (1975-12-01), Wynn
patent: 4223693 (1980-09-01), Kosarzecki
patent: 4299375 (1981-11-01), Schosek
MHU-33/M--Drawing #60746045.
MHU-7/M--Drawing #T1 H201J.

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