Method for producing one-piece cutter body members for comminuting apparatus
OwnerWilliam B. Galantyinventor
Life of this patent
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Abstract
An improved method for producing one-piece cutter body members for comminuting apparatus for shredding, crushing and grinding bulk solid waste materials is provided. The process creates one-piece cutter body members having cutter teeth distributed along the length of the body members for rotation when in fixed engagement with twin or multiple parallel shafts of the bulk solid waste material comminuting apparatus. The resulting one-piece cutter body members are adaptable to intermeshing comminuting action each having cutting teeth which may be shaped for cutting in both of two opposite directions of rotation.
Claims13
A method for producing a one-piece cutter body member for a twin shaft comminuting apparatus, comprising the following steps:
- a. casting individual wax forms of multi-tooth cutter and spacer disks;
- b. stacking alternately at least one of said wax cutter and spacer disks to form a cutter tooth and spacer array having having length;
- c. immersing said array in or coating said array with an investment casting material to form an investment or loss-wax casting mold of said array;
- d. firing said mold with said wax array of cutter teeth and spacer disks to thereby melt said wax for removal thereof from said investment or loss-wax casting mold;
- e. filling a cavity formed in said mold upon removal of said wax, with a molten metal;
- f. removing said casting mold after said molten metal has solidified within said cavity as a one-piece near-net shape body array of cutter teeth and spacer disk-like segments;
- g. said one-piece array is heat treated in a suitable furnance to metal harden and strengthen said one-piece body;
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- h. selectively precision machine finishing said heat treated one-piece body array as required to thereby produce precision dimensions and configurations for portions thereof.
A method for producing one-piece cutter body members for multiple parallel shaft comminuting apparatus for bulk solid waste materials, comprising the steps of:
- a. using processing means for forming at least two complementary one-piece cutter body members each having an axial opening therethrough along a length thereof, said axial openings being adapted for fixed engagement with shafts of said comminuting apparatus;
- b. using process means for forming a plurality of cutting teeth distributed along the length thereof for rotation with said shafts, said cutting teeth having a uniform thickness and being spaced from each other tooth along said length thereof by distances slightly greater than said thickness;
- c. using process means forming an inner circular portion surrounding said axial opening and a plurality of spaced apart cutting teeth projecting from the periphery of a second circular body portion concentric with said inner circular portion, said cutting teeth on each of said body members being respectively alignable with a space between the cutting teeth on a similar intermeshing cutter body member being situated from each other by a distance which locates the peripheries of said inner circular portion of said cutter body member so that said cutting teeth of one cutter body passes through spaces between the cutting teeth of said similar intermeshing cutter body;
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- d. using process means for forming said cutting teeth of said similar intermeshing cutter body member so as to produce a reverse spiral-like configuration of each other so as to produce smooth intermeshing action during opposing rotation therebetween when disposed in parallel space relationship to one another on parallel shafts of a bulk solid waste material comminuting apparatus.
Dependencies are inferred from the claim text.