B - Operations – Transporting – 27 – L
Patent
B - Operations, Transporting
27
L
341/102, 144/76
B27L 5/02 (2006.01) G05B 19/402 (2006.01)
Patent
CA 1095812
Abstract A log centering apparatus and method are described employing an optical log scanner for determining the longi- tudinal axis of the log for optimum wood product production by transmitting light to detectors through the space between the side of such log and reference edge members. The de- tectors each include a linear array of photosensitive diode- which are electronically scanned to take a reading. Before scanning, rough centering arms clasp the log and its opposite ends are engaged by rotation spindles. The log may be ro- tated intermittently or continuously during scanning to measure at different angles the distance between the reference edge and the surface of the log at a plurality of points spaced longitudinally along the log. These distance signals are fed to an electronic computer to compute the optimum yeld axis of such log. The spindles on which the log is rotated are moved horizontally and verically after deter- mination of its optimum axis, to reposition the log until such optimum axis is in alignment with a reference axis, spaced a predetermined distance from a work axis, such as the lathe of a veneer lather. The preferred embodiment of the invention is a veneer lathe charger. After repositioning the log in alignment with the reference axis, such log is reclamped and held while the spindles are removed ? that the ends of the logs can be engaged by pivoted pendulum-like transfer arms which transfer the log from such reference axis to alignment with the lathe axis. - 1 -
321358
Browning Robert A. Jr.
Mcgee Arthur L.
Yock Lewis M.
Coe Manufacturing Company Inc. (the)
Smart & Biggar
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