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US 4,036,443 AGranted
Refiner head assembly and refining disk therefor
AssigneeBeloit Corporation
InventorMartin O. Saltarelli
Life of this patent
Estimating the term…
Abstract
A refiner head assembly of the type suitable for use in disk refiners, such as those employed in paper pulp processing. The assembly includes a backing head and a refining disk. The disk mounts reversibly between a pair of radially spaced, circumferentially extending flanges upstanding from one face of the head using, for example, a beveled tongue and groove arrangement. The disk has both of its opposed side faces equipped with working surfaces adapted for disk refining. Thus, since the disk is reversible, one can use such a disk for twice as long a duty life as a disk with but one side face equipped with a working surface.
Claims8
A refiner head assembly for use in a refiner apparatus, said assembly comprising
- a. a backing head means having an axis, said head means having a circumferentially extending, radially spaced inner flange means upstanding from one face thereof and further having a circumferentially extending, axially spaced outer flange means upstanding from said one face thereof, said flange means being in radially spaced relationship,
- b. each of said inner and outer flange means further having a circumferentially extending sidewardly opening groove defined therein, said respective grooves being in generally opposed relationship to each other,
- c. refining disk means adapted to be positioned adjacent said one face between said inner and said outer flange means having an axially located aperture defined therein, said refining disk means having an inner radially inwardly projecting, circumferentially extending tongue means defined in radially inner edge portions of said refining disk means, and further having an outer radially outwardly projecting, circumferentially extending tongue means defined in radially outer edge portions of said refining disk means,
- d. said inner and outer tongue being adapted to seat in said inner and outer groove means, respectively, when said backing head means and said refining disk means are in assembled engagement with one another,
- e. said refining disk means defining spaced, opposed side face portions thereon, said face portions adapted for working a pulp composition when said refiner head assembly is operatively connected with a disk refiner apparatus,
- f. the interrelationship between said backing head means, said refining disk means, said flange means, said groove means, and said tongue means being such that said refining disk is operatively joinable to said backing head with either one of said opposed side faces thereof being in adjacent relationship to said one face and yet maintain a desired configuration between exposed side face and said backing head means.
3 more elements
A refiner head assembly for use in a disk refiner apparatus, said refiner head assembly comprising:
- a backing head means, said backing head means having a generally flattened face with an axis normal thereto, and further having, relative to said axis and said face, upstanding inner and outer flange means, said inner flange means being adjacent said axis, said outer flange means being radially spaced therefrom, both of said flange means extending circumferentially and one of said flange means being demountably secured to said backing head means;
- refining disk means having a pair of spaced, opposed side faces, an apertured center portion defining a circumferentially extending inner edge portion, and an outer edge portion circumferentially extending in radially spaced relationship to said inner edge portion, each of said side faces having defined therein a desired working surface adapted for disk refining usage;
- the interrelationship between said backing head means and said refining disk means being such that said refining disk means is adapted to be positioned relative to said backing head means so that either one of said side faces is adjacent said flattened face and said inner and said outer edge portion are adjacent said inner and said outer flange means, respectively;
- and,
- interconnecting means demountably joining said inner and said outer edge portions to said inner and said outer flange means, respectively, and adapted to maintain a desired orientation between exposed side face and said backing head means;
- said refiner head assembly being characterized by said inner edge portion and said outer edge portion each being provided with a radially projecting, circumferentially extending tongue portion with beveled side wals, and said inner flange means and said outer flange means each having defined therein a radially extending circumferentially extending groove portion with beveled side walls, said tongue portions being rigidly engageable with said groove portions when the demountable flange means is secured to said backing head means, thereby providing said interconnecting means.
3 more elements
Dependencies are inferred from the claim text.