Traversing hoists – Overhead – Cable
Patent
1996-06-10
1997-08-05
Brahan, Thomas J.
Traversing hoists
Overhead
Cable
212197, 212313, 212317, B66C 2100
Patent
active
056533500
ABSTRACT:
A remote-controlled grapple carriage picks up and transports logs along a skyline cable. The grapple carriage is designed to enable logs positioned laterally with respect to the skyline cable without any assistance from a logger at the logs. The grapple carriage includes a motor carriage rotatably coupled to a skyline coupler slidably coupled to the skyline cable. In addition, the grapple carriage includes a boom pivotally coupled at a proximal end to the motor carriage and coupled at a distal end to a grapple. The grapple is rotatably and pivotally coupled to the boom in a manner that enables the grapple to pick up and transport logs to a landing. The various pivotal and/or rotatable couplings of the elements of the grapple carriage enable the grapple to reach logs positioned laterally of the skyline cable in a safe and efficient manner.
REFERENCES:
patent: 1931700 (1933-10-01), Murphy et al.
patent: 3463329 (1969-08-01), Gartner
patent: 3540770 (1970-11-01), Mitchell
patent: 3647255 (1972-03-01), Hale et al.
patent: 3651952 (1972-03-01), Mitchell
patent: 3695672 (1972-10-01), Mitchell
patent: 4449634 (1984-05-01), Buzzichelli et al.
patent: 4515281 (1985-05-01), Maki
patent: 5088610 (1992-02-01), Garnier
Brahan Thomas J.
Maki Manufacturing, Inc.
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