Material or article handling – Vertically swinging load support – Grab
Patent
1987-06-10
1989-02-14
Spar, Robert J.
Material or article handling
Vertically swinging load support
Grab
901 26, 901 29, B66C 110
Patent
active
048043044
ABSTRACT:
The wrist is built up of two wrist halves, between which the tilt with the turning disc is journalled. Each wrist half comprises an intermediate gearing with conical gear wheels and is built together with a drive motor. The two wrist halves are identical, and each half constitutes an individual trimmable drive unit for turning the tilt and the turning disc, respectively.
REFERENCES:
patent: 3739923 (1973-06-01), Totsuka
patent: 4492510 (1985-01-01), Tanii et al.
patent: 4548097 (1985-10-01), Zimmer
patent: 4608884 (1986-09-01), Beyer
patent: 4671732 (1987-06-01), Gorman
patent: 4683772 (1987-08-01), Colimitra
ASEA Aktiebolag
Hienz William M.
Spar Robert J.
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