Woodworking – Process – Mechanical cutting or shaping
Patent
1991-10-25
1992-09-01
Bray, W. Donald
Woodworking
Process
Mechanical cutting or shaping
301234, 30387, 83169, 144 3D, 144 2Z, 144 34R, 144357, 144338, 144 3N, 401137, B27M 100, B27B 100, A01G 2308
Patent
active
051431319
ABSTRACT:
A fluid spraying saw bar, and a chain sawing apparatus, such as a tree harvester, having such a saw bar are provided for selectively applying a predetermined fluid pattern of urea on a tree stump during felling, and of paint on a log end during bucking. A bar member supports an endless saw chain and has an elongate chamber therein to receive pressurized fluid from a harvester reservoir. Plural fluid emitting holes extend from the chamber to at least one side surface of the bar member. A tubular or a dual valve plate flow controller is slidably received in the chamber operatively engaged by a harvester actuator to control flow through the fluid emitting holes. For a rot-preventing urea spray, the pattern is adjusted for logs of varying diameter. For a marking spray, a striping spray pattern is selected in response to a harvester computer generated signal to indicate log length, diameter, mill designators, and the like. A method is also provided of selectively and controllably providing a predetermined spray pattern of fluid on a surface formed by the cutting action of the chain saw during cutting.
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Plumbley Robin A.
Seigneur Christopher D.
Blount, Inc.
Bray W. Donald
LandOfFree
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