Implements or apparatus for applying pushing or pulling force – Hoisting truck – Platform type
Patent
1977-07-15
1978-10-31
Watson, Robert C.
Implements or apparatus for applying pushing or pulling force
Hoisting truck
Platform type
214331, 254134, B66F 504
Patent
active
041230388
ABSTRACT:
A wheel lift apparatus for supporting a load, comprising a mobile base frame having caster mounted side frame members telescopically extensible in a longitudinal direction, a cross frame member rigidly interconnecting the side frame members in laterally fixed, substantially parallel relationship, and vertical guide means projecting upwardly from the cross frame member; a lift frame vertically movable relative to the base frame including laterally spaced L-shaped lift arms having horizontal, load supporting arm members and vertical arm members interconnected by a lateral cross member, and slide means carried by the vertical arm members for cooperable action with the guide members of the base frame; a horizontally adjustable load contacting frame carried by the vertical arm members of the lift frame; and another vertically adjustable, load supporting frame carried by the base frame.
REFERENCES:
patent: 1555152 (1925-09-01), Passow
patent: 2600741 (1952-06-01), Drum
patent: 2797004 (1957-06-01), Miller
patent: 2815566 (1957-12-01), Hille
patent: 2825477 (1958-03-01), Ross
patent: 3035812 (1962-05-01), Wineteer
patent: 3749265 (1973-07-01), Smith
patent: 3850419 (1974-11-01), Craig
patent: 3951287 (1976-04-01), Cofer
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