B - Operations – Transporting – 66 – D
Patent
B - Operations, Transporting
66
D
212/43
B66D 3/00 (2006.01) B66C 21/04 (2006.01)
Patent
CA 1052324
ABSTRACT OF THE DISCLOSURE A mobile spar system which is especially suitable for yarding relatively small dimension timber on steep terrain, from either side of a spar transport on a logging road. In order to avoid rethreading or crossing of cables when changing from layout to layout the drums and fairleads, from the front of the vehicle and top of the spar respectively are in the order 1) Skyline, 2) Haulback; and 3) Skidder or Mainline. The skyline and haulback are carried through a first universal 360° fairlead assembly at the load of the spar and the mainline is carried through a second swivelling fairlead assembly mounted on the spar below the first fairlead.
270473
Anderson Clay H.
St. Jean Gerard
LandOfFree
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