Feed works for veneer chippers

Details Feed works for veneer chippers Feed works for veneer chippers

1986-05-23

1987-11-24

Bray, W. D.

Woodworking

Feeder or presser

Feed roll

144176, 144242R, B27B 3100, B27L 1100

Patent

active

047081813

ABSTRACT:
An improved apparatus is described for chipping a resilient material such as layers of scrap wood veneer of the type that includes feeding the resilient material across an anvil into contact with a rapidly moving chipping blade. The apparatus includes a crush roll for holding the material down as it approaches the anvil surface. The crush roll is journal-mounted on a pair of support arms swing-mounted on a framework to respond to variations in level of material received by the apparatus. Hold-down fingers are pivotably supported upon a finger shaft and their fingertips hold the veneer onto the anvil as close as practicable to the knife blade. A compensating linkage carries the finger shaft and is pivotally connected to the support arms and to the frame to which the support arms are pivotally connected. The compensating linkage compensates for the horizontal amount that the fingertips would otherwise travel as a horizontal component of the swing arc of the crush roll as it responds to varying material levels. As a result, the fingertips travel a substantially vertical path responsive to movement of the crush roll.

REFERENCES:
patent: 749072 (1904-01-01), Marsh
patent: 2570926 (1951-10-01), Elmendorf
patent: 2756788 (1956-07-01), Fish et al.
patent: 2811183 (1957-10-01), Mottef
patent: 2969095 (1961-01-01), Brookhyser et al.
patent: 3335771 (1967-08-01), Ledergerber
patent: 3718169 (1973-02-01), Plough
patent: 3810501 (1974-05-01), Horel

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