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US 4,665,786 AGranted
Log handling and sawing system
OwnerDean W. Shieldsinventor
Life of this patent
Estimating the term…
Abstract
A sawmill in which a multi-log supporting mechanism is constructed wherein logs are grasped at spaced angular positions about the mechanism and rotated by it between an initial receiving position to a profile measurement position and then to a sawing position. The end-to-end axis of the supporting mechanism is adjustably oriented with respect to a saw in terms of profile measurements and size of lumber determined to be cut from a log. Directionally, this adjustment is made normal to the profile measurement dimension.
Claims6
A log handling and sawing system comprising:
- log rotation and positioning means having an elongated rotational axis for receiving and selectively rotating a log to a selected angular position and spatial position;
- log orientation means comprising:
- an elongated frame positioned parallel with and adjacent to said log rotation means, and means for pivotally supporting said elongated frame about its longitudinal axis,
- revolve drive means for selectively revolving said elongated frame about said longitudinal axis, and
- clamping means supported by said elongated frame for clamping a log along a longitudinal side of said frame;
- clamp control means for separately operating, opening and closing, said clamping means;
- log loading means for loading logs, one at a time, on said log rotation and positioning means;
- saw and motive means supported adjacent a side of said log orientation means for making a longitudinal cut from a log when the log has been rotated by said log orientation means;
- profile detection means for providing an output indicative of a profile of a log held by said clamping means;
- and
- control means for relatively positioning said log orientation means and said saw and motive means, whereby a selected cut may be made longitudinally through a said log.
8 more elements
Dependencies are inferred from the claim text.