Handling: hand and hoist-line implements – Spacing hoist bar or frame – With orienting means
Patent
1987-03-04
1988-11-15
Cherry, Johnny D.
Handling: hand and hoist-line implements
Spacing hoist bar or frame
With orienting means
212147, B66C 1306
Patent
active
047844205
ABSTRACT:
An orientation control apparatus for a suspender, comprising a first lever which has two ropes fixed to each of both its ends, a second lever which is disposed so as to be rotatable in a rotating direction of the first lever, a driver which rotates the second lever, and a damping device which connects an end part of the first lever and an end part of the second lever and which operates in case of preventing a deviational motion of the suspender, to allow the rotation of the first lever relative to the second lever and to damp a force for rotating the first lever, and in the other case, to inhibit the first lever from rotating relative to the second lever.
REFERENCES:
patent: 3828940 (1974-08-01), Cooper
patent: 3900114 (1975-08-01), Inoue et al.
patent: 4531647 (1985-07-01), Higuchi et al.
patent: 4563030 (1986-01-01), Makino
Ishii Yasuhisa
Makino Kazuhiro
Cherry Johnny D.
Hitachi , Ltd.
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