Solid material comminution or disintegration – Apparatus – Series material flow only through plural comminuting zones
Patent
1976-06-07
1977-06-07
Custer, Jr., Granville Y.
Solid material comminution or disintegration
Apparatus
Series material flow only through plural comminuting zones
241247, 2412601, B02C 1922
Patent
active
040278247
ABSTRACT:
A nut grinder of the type having: a front grinding chamber containing a rear inlet; a rear feeding chamber containing an upper downwardly-open hopper terminating in a lower upwardly-open trough having a front end outlet opening; a fluted tunnel connecting the front outlet opening of said trough with the rear inlet opening of the grinding chamber; a grinder in the grinding chamber including a rotatable grinding element; and a motorized screw conveyor extending through the trough and fluted tunnel and connected to drive the rotatable grinding element for nut grinding purposes. That portion of the screw conveyor, underlying the hopper, is provided with L-shaped cuts in its spiral turns at spaced 180.degree. intervals. The leg of each L-shaped cut extends tangentially to the spiral screw conveyor at or adjacent the base of its spiral flights while the foot of the L extends radially and preferably leans forwardly in the direction of rotation. These cuts provide space accommodating the larger nuts while the foot of each cut propels nuts rotationally forward and compresses them against the casing wall sufficiently to break the nuts into smaller pieces which are readily conveyed by the screw conveyor. In other words, the larger nuts are broken up and fed forwardly into and through the tunnel into the grinder.
REFERENCES:
patent: R16046 (1925-04-01), Greene
patent: 2446073 (1948-07-01), Bjorklund
patent: 2468613 (1949-04-01), Bjorklund
Custer, Jr. Granville Y.
Grindmaster of Kentucky, Incorporated
Robert Arthur F.
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