Material or article handling – Vertically swinging load support – Shovel or fork type
Patent
1989-07-24
1991-03-12
Spar, Robert J.
Material or article handling
Vertically swinging load support
Shovel or fork type
414722, 414912, 172819, 172825, 371175, 37DIG3, 37DIG12, E02F 334
Patent
active
049990225
ABSTRACT:
An earthmoving attachment to be mounted on the front end of a tractor. The attachment includes a frame secured to the tractor, arms pivoted to the frame and extending forwardly and mounting a combination bucket and blade. Hydraulic cylinders individually extend telescoping sections in the arms to effect a skewing of the blade. Another hydraulic cylinder mounting a slider adjacent one end of the blade is operable to tilt the blade or bucket. Other sets of hydraulic cylinders tip the bucket and lift the arms conventionally. Simple adjustments are operable to convert the attachment from the configuration of a front-end-loader to that of a dozer, and to skew, tilt and tip the blade and bucket in various configurations.
REFERENCES:
patent: 1961011 (1934-05-01), Pearson
patent: 1977817 (1934-10-01), Bird
patent: 2216572 (1940-10-01), Nichols, Jr.
patent: 2224725 (1940-12-01), Felt, Jr.
patent: 2308535 (1943-01-01), Paulsen
patent: 2452408 (1948-10-01), Washbond
patent: 2472223 (1949-06-01), McElhinney
patent: 2557160 (1951-06-01), Thierry
patent: 2730823 (1956-01-01), Cassidy
patent: 2749630 (1956-06-01), Nave
patent: 2827717 (1958-03-01), Duke et al.
patent: 2950550 (1960-08-01), French
patent: 3084461 (1963-04-01), Beckford
patent: 3157099 (1964-11-01), Ulrich
patent: 3178046 (1965-04-01), Lull
patent: 3327879 (1967-06-01), Lull
patent: 3539022 (1970-11-01), Berg
patent: 3991832 (1976-11-01), Cooper
patent: 4280783 (1981-07-01), Hayward
patent: 4306832 (1981-12-01), Schmiesing
patent: 4512090 (1985-04-01), Billings
patent: 4553899 (1985-11-01), Magni
patent: 4633601 (1987-01-01), Fleck et al.
Ffitch Bruce J.
Spar Robert J.
Underwood Donald W.
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