Material or article handling – Vertically swinging load support – Shovel or fork type
Patent
1982-01-25
1984-08-14
Spar, Robert J.
Material or article handling
Vertically swinging load support
Shovel or fork type
414712, 414710, 414694, 414550, E02F 920
Patent
active
044654251
ABSTRACT:
A device for the paraxial kinetic control of a boom that can be swivelled perpendicular to the rotatable platform of a mobile lifting machine wherein there is provided at least one coupling rocker which is pivotally mounted on the boom and provides a pivotal connection for a plurality of points of application of force, two points of application of force being linked to the platform of the lifting machine.
REFERENCES:
patent: 3148789 (1964-09-01), Gourjon
patent: 3370729 (1968-02-01), Clarke
patent: 3872991 (1975-03-01), Pasideris et al.
patent: 4212404 (1980-07-01), Campbell et al.
patent: 4329797 (1982-05-01), Shumaker
Farber Martin A.
O&K Orenstein & Koppel Aktiengesellschaft
Siemens Terrance L.
Spar Robert J.
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