Crane, particularly for material handling

Details Crane, particularly for material handling Crane, particularly for material handling

1991-12-12

1994-02-01

Huppert, Michael S.

Material or article handling

Vertically swinging load support

212261, 212253, 212246, 212245, B66C 1300

Patent

active

052827143

ABSTRACT:
A crane for material handling is constituted by a boom (1) and a fixed column (2) for supporting the boom (1). The boom (1) is articulated for vertical swinging movement on and relative to a rotating device (3), mounted for rotation about a vertical axis on or in the column (2) and provided with a torsion-transmitting member (4) passing through the column (2) and coacting at its lower portion with a rotation activator (5) of the boom (1). The boom (1) is provided at its free end with a hook, a grapple or another tool, or with a like rotatable actuator.

REFERENCES:
patent: 2966752 (1961-01-01), Wampach
patent: 3032206 (1962-05-01), McIntyre, Sr.
patent: 3270899 (1966-09-01), Brown et al.
patent: 3306442 (1967-02-01), Devol
patent: 3533515 (1970-10-01), Milner, Jr.
patent: 3543944 (1970-12-01), Woodside
patent: 4172684 (1979-10-01), Jenkins
patent: 4373953 (1983-02-01), Biller et al.
patent: 4861224 (1989-08-01), Holmes

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