Continuously moving lathe knife
OwnerLeonard L. Hayesinventor
Life of this patent
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Abstract
A continuously moving lathe knife is provided which can be retrofit to an existing lathe carriage. The knife assembly includes a chain bar secured to the knife carriage with a pair of sprockets at either end of the chain bar. An endless loop chain extends around the sprockets. The chain includes knife tips with angularly disposed serrations which engage the surface of the log from which veneer is being cut. As the log is rotated about its longitudinal axis, the friction between the log and knife tip serrations imparts longitudinal movement of the chain with respect to the log. The chain thereby moves around the chain bar so as to cut a layer of veneer from the log. No separate power source is required for rotating the chain.
Claims15
A machine for cutting veneer layers from a log, comprising,
- a frame;
- means for rotatably supporting and rotating a cylindrical elongated log on its longitudinal center axis;
- a knife carriage on said frame;
- a chain bar on the knife carriage;
- a chain channel extending around said chain bar;
- a continuous chain comprising a plurality of pivotally connected chain links movably extending through said channel, each chain link including a knife tip with a cutting edge;
- and
- each knife tip having serrations therein for engaging the log, the serrations being angularly disposed with respect to the cutting edge of the knife tips and being adapted to frictionally engage the surface of the log, whereby upon rotation of said log, the frictional engagement between the log and serrations imparts longitudinal movement of the chain with respect to the log such that said chain rotates around said chain bar and within said channel to cut a layer of veneer from said log.
Dependencies are inferred from the claim text.