Traversing hoists – Overhead – Cable
Patent
1991-01-28
1992-04-28
Basinger, Sherman
Traversing hoists
Overhead
Cable
212 90, 212 91, 212163, 212164, 414 2, 37DIG1, B66C 1314
Patent
active
051079976
ABSTRACT:
Cable machine control, particularly a grapple yarder is provided with an integrated control system whereby the operator is provided with controls each of which controls a desired operation or movement of the grapple. In particular the controls include a haul back and an in direction control, an up and down control and an opening and closing control some of which may be operated simultaneously with the speed of any operation or movement dependent on the maximum displacement of the control for any selected operation or movement.
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Washington Iron Works; Model 108, "Skylok" Yarder; two pages (sides 1 and 2).
Basinger Sherman
Brahan Thomas J.
MacMillan Bloedel Limited
Rowley C. A.
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