Solid material comminution or disintegration – Apparatus – Cooperating comminuting surfaces
Patent
1982-08-16
1988-02-09
Echols, P. W.
Solid material comminution or disintegration
Apparatus
Cooperating comminuting surfaces
241236, 241280, 241293, B02C 1822
Patent
active
047237171
ABSTRACT:
A rotary shearing/cutting machine, capable of comminuting article of many diverse materials and widely varying dimensional characteristics (i.e., plastic barrels and other containers, plastic and metal films, rubber tires, etc.) has four rotary driven shafts extending across a comminution chamber in parallel spaced relation to each other, with two center shafts rotating in opposite directions and with the shafts rotating at different speeds; a series of primary shear blades interspersed one-for-one with a series of secondary cutter blades are mounted on each shaft for rotation therewith, each shear blade projecting into the space between the shear blades on any adjacent shaft in close overlapping proximity thereto. Each shear blade and each cutter blade is of disc-like configuration having at least one radially projecting C-shaped cutting element affording a transverse cutting edge facing in the direction of rotation; the cutter blades are substantially smaller in diameter than the shear blades. The radial faces of the shear blades are recessed to afford annular expansion spaces for material sheared in the regions of overlap of the shear blades, materially reducing the power requirements for the machine and minimizing the possibility of jamming of the machine. A power feed forces articles to be comminuted along a feed chute into the inlet opening of the comminution chamber.
REFERENCES:
patent: 1608183 (1926-11-01), Quante
patent: 2918224 (1959-12-01), Hornberger
patent: 3664592 (1972-05-01), Schweigert et al.
patent: 3845907 (1974-11-01), Schwarz
patent: 4165043 (1979-08-01), Higashi et al.
Echols P. W.
Gorski Joseph M.
Nelmor Co., Inc.
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