B - Operations – Transporting – 27 – M
Patent
B - Operations, Transporting
27
M
144/62
B27M 3/02 (2006.01)
Patent
CA 1156912
SHAKE RESAW FEED SYSTEM ABSTRACT OF THE DISCLOSURE A shake resaw feed system is used with a band saw for lengthwise sawing of tapered wood shingles from shake blanks or slabs. The feed system includes an endless chain conveyor having flights or push paddles spaced equidistantly apart along the chain for pushing each slab longitudinally toward the blade of the band saw. Along the conveyor are guide means including a fence on one side of the conveyor and flexible fingers on the other side of the conveyor for urging the slabs against the fence as they proceed along the conveyor. The fence is automatically shifted laterally during sawing of the slab to produce a tapered cut through the slab. The system also includes means for sensing the thickness of the slabs and for automatically reposition- ing the fence laterally to equalize the thickness of the shingles cut from the slab. Downstream of the band saw is a second conveyor means in the form of drag wheels for grasping the pair of shingles being cut from each slab as they pass the blade, and for pulling the slab through the blade. The drag wheels are laterally mov- able as a unit and are individually separable to accom- modate shakes of different thicknesses.
383053
Guynup William J.
Oyen Wiggs Green & Mutala
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