Material or article handling – Wheel and wheel-type article handler and transporter – Vertically swinging article engager
Patent
1989-04-17
1991-11-12
Werner, Frank E.
Material or article handling
Wheel and wheel-type article handler and transporter
Vertically swinging article engager
414427, 414908, 212244, 212238, 212261, 294902, 2941101, 901 39, B66C 2306
Patent
active
050643347
ABSTRACT:
An apparatus for lifting a large tractor wheel includes a frame defined by feet and a post, which carries a bracket for rotation around the longitudinal axis of the post; a boom pivotally connected at one end to the bracket for rotation around a horizontal axis; a plate on the bracket for supporting a jack in engagement with the boom so that the latter can be raised and lowered; and a clamp suspended from the outer free end of the boom for raising and lowering a wheel, the clamp being defined by (i) a pair of scissor jaws with roller bearings on the bottom opposing ends thereof for engaging the opposite sides of a wheel rim or (ii) a fixed C-shaped jaw with roller bearings on the bottom and side thereof for engaging one side and rim of a wheel, and an inverted L-shaped jaw adjustably connected to the top arm of the fixed jaw for straddling the top of a tire, with a bearing on the bottom free end thereof for engaging the other side of the tire and holding the wheel in the C-shaped jaw.
REFERENCES:
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patent: 2509950 (1950-05-01), Zierke
patent: 2705658 (1955-04-01), Barchoff
patent: 2792139 (1957-05-01), Lloyd
patent: 2989197 (1961-06-01), Werner et al.
patent: 3059785 (1962-10-01), Buckeye
patent: 3830388 (1974-08-01), Mott
patent: 4099634 (1978-07-01), McIntire et al.
patent: 4226331 (1980-10-01), Dumond
patent: 4508233 (1985-04-01), Helms
patent: 4710090 (1987-12-01), DeLuca et al.
Hinds William R.
Werner Frank E.
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