Patent
1975-03-03
1978-09-12
Werner, Frank E.
214 92, B66C 142
Patent
active
041131240
ABSTRACT:
A movable arch supporting a grapple unit at one end of a logging vehicle, the movable arch including a pair of links of different lengths being pivotably connected in spaced apart relation to a vehicle and a support beam, one end of the support beam extending rearwardly from the vehicle for connection with the grapple unit, a hydraulic jack being interconnected between the vehicle and one of the links.
REFERENCES:
patent: 1843968 (1932-02-01), Bellows
patent: 2337109 (1943-12-01), Johnson
patent: 2349352 (1944-05-01), Johnson
patent: 2583114 (1952-01-01), Monteith
patent: 3034820 (1962-05-01), Schwartz et al.
patent: 3034821 (1962-05-01), Hackett et al.
patent: 3211065 (1965-10-01), Hunger et al.
patent: 3746193 (1973-07-01), Eaves
patent: 3972431 (1976-08-01), Fischer
Caterpillar Tractor Co.
Werner Frank E.
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