Dual purpose crane block

Details Dual purpose crane block Dual purpose crane block

1993-09-22

1995-09-19

Stodola, Daniel P.

Implements or apparatus for applying pushing or pulling force

Device or member for contacting and guiding moving cable

Including rotatable, cable contacting, pulley wheel element

254403, 294 8211, B66D 308, B66C 134

Patent

active

054510325

ABSTRACT:
A dual mode crane block is disclosed which crane block includes a sheave mounted therein and a cable retaining member mounted thereon. A hoisting cable can be routed around the sheave to double the lifting capacity of a crane. Otherwise, by way of the cable retaining member, the crane block can be suspended on the ends of a hoisting cable to serve as a weight.

REFERENCES:
patent: 113688 (1871-04-01), Norcross
patent: 691492 (1902-01-01), Roney
patent: 1671435 (1928-05-01), McKissick
patent: 2502570 (1950-04-01), Johnson
patent: 2710767 (1955-06-01), Howe
patent: 3917334 (1975-11-01), Koster
patent: 4542884 (1985-09-01), Dodge, Jr.
patent: 4641875 (1987-02-01), Speich
patent: 4697790 (1987-10-01), Yang
patent: 5154401 (1992-10-01), Schramm et al.

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