Industrial shredding apparatus

Claim 2

Shredding apparatus including, in combination, a plurality of horizontal, mutually spaced cutter bar means, a pair of parallel shafts journaled proximate to and disposed transversely with respect to said cutter bar means, first and second sets of mutually spaced cutter blade means keyed to said shafts, respectively, and cooperatively disposed with respect to said cutter bar means for coating therewith and passing through the spaces between adjacent cutter bar means, each of said sets of cutter blade means being comprised of cutter blades which are mutually angularly displaced, progressively, about ones of said shafts to form, compositely, Helixlike cutter blade tip configurations, and means for oppositely revolving said shafts such that their upper peripheries mutually advance toward each other, thereby revolving said cutter blades in such a manner that their cutting portions descend in a region between said shafts, said cutter blades means being disposed on their respective shafts such that those respective cutter blades at corresponding shaft areas of said shafts simultaneously approach said cutter bar means together in mutual correspondence.

Claim 3

Apparatus according to claim 1 wherein said cutter blade means of each of said sets are disposed in mutual correspondence.

Claim 4

The apparatus of claim 1 wherein said cutter blades each have opposite cutting edges for coacting with said cutter bar means at the nominal end of each half cycle of shaft revolvement

Claim 5

The apparatus of claim 1 wherein each of said cutter blades includes a pair of recessed, cutter-bar-blade seats, said cutter blades including a pair of hardened, cutter-blade bars respectively secured to said seats.

Claim 6

Shredding apparatus including, in combination, a plurality of horizontal, mutually spaced cutter bar means, a pair of parallel shafts journaled proximate to and disposed transversely with respect to said cutter bar means, first and second sets of mutually spaced cutter blade means keyed to said shafts, respectively, and cooperatively disposed with respect to said cutter bar means for coacting therewith and passing through the spaces between adjacent cutter bar means, each of said sets of cutter blade means being comprised of cutter blades which are mutually angularly displaced, progressively, about respective ones of said shafts to form, compositely, helixlike cutter blade tip configurations, and means for oppositely revolving said shafts such that their upper peripheries mutually advance toward each other, thereby revolving said cutter blades in such a manner that their cutting portions descend in a region between said shafts, and wherein said cutter bar means each comprises a support base having upwardly angulated sides, and journal means for journaling said shafts thereto.

Claim 7

Shredding apparatus including, in combination, a plurality of horizontal, mutually spaced cutter bar means, a pair of parallel shafts journaled proximate to and disposed transversely with respect to said cutter bar means, first and second sets of mutually spaced cutter blade means keyed to said shafts, respectively, and cooperatively disposed with respect to said cutter bar means for coacting therewith and passing through the spaces between adjacent cutter bar means, each of said sets of cutter blade means being comprised of cutter blades which are mutually angularly displaced, progressively, about respective ones of said shafts to form, compositely, helixlike cutter blade tip configurations, and means for oppositely revolving said shafts such that their upper peripheries mutually advance toward each other, thereby revolving said cutter blades in such a manner that their cutting portions descend in a region between said shafts, and wherein said cutter bar means each comprises a support base having upwardly angulated sides, and journal means for journaling said shafts thereto.

Claim 8

The apparatus of claim 1 wherein said apparatus includes an elongate crossmember tranversely disposed between said cutter blade means sets and fixedly connected to said cutter bar means.

Claim 9

The apparatus of claim 1 wherein said cutter blade means and said cutter bar means each include mutually interchangeable, hardened, cutter bar segments.

Claim 10

The apparatus according to claim 2 wherein said cutter blades are so disposed upon said shafts that corresponding ones of said cutter blades, during their cutting cycle, approach said cutter bar means together.

Claim 11

The apparatus according to claim 5 wherein said support bases include a pair of split journal bearings for supporting respective ones of said shafts, said support bases also including bearing caps constructed for journal securement over said shafts to cooperatively align with said bearing halves of said support base.

Claim 12

Shredding apparatus including, in combination, a plurality of horizontal, mutually spaced cutter bar means, a pair of parallel shafts journaled proximate to and disposed transversely with respect to said cutter bar means, first and second sets of mutually spaced cutter blade means keyed to said shafts, respectively, and cooperatively disposed with respect to said cutter bar means for coacting therewith and passing through the spaces between adjacent cutter bar means, each of said sets of cutter blade means being comprised of cutter blades which are mutually angularly displaced, progressively, about respective ones of said shafts to form, compositely, helixlike cutter blade tip configurations, and means for oppositely revolving said shafts such that their upper peripheries mutually advance toward each other, thereby revolving said cutter blades in such a manner that their cutting portions descend in a region between said shafts, and wherein said apparatus includes an elonGate crossmember transversely disposed between said cutter blade means sets and fixedly connected to said cutter bar means, and wherein said elongate crossmember and said cutter bar means each include hardened cutter bar elements forming U for respective ones of said cutter blade means.

Claim 13

Shredding apparatus including, in combination, a plurality of horizontal, mutually spaced cutter bar means, a pair of parallel shafts journaled proximate to and disposed transversely with respect to said cutter bar means, first and second sets of mutually spaced cutter blade means keyed to said shafts, respectively, and cooperatively disposed with respect to said cutter bar means for coacting therewith and passing through the spaces between adjacent cutter bar means, each of said sets of cutter blade means being comprised of cutter blades which are mutually angularly displaced, progressively, about respective ones of said shafts to form, compositely, helixlike cutter blade tip configurations, and means for oppositely revolving said shafts such that their upper peripheries mutually advance toward each other, thereby revolving said cutter blades in such a manner that their cutting portions descend in a region between said shafts, and wherein said apparatus includes an elonGate crossmember transversely disposed between said cutter blade means sets and fixedly connected to said cutter bar means, and wherein said elongate crossmember and said cutter bar means each include hardened cutter bar elements forming U for respective ones of said cutter blade means.

Claim 14

A shredder including, in combination, a shaft, a plurality of mutually spaced cutter blades keyed to said shaft for revolvement therewith; a plurality of mutually spaced, upstanding spacer means for defining, at adjacent sides of adjacent ones of said spacer means, travel paths for said cutter blades; supporting means disposed at opposite extremities of said spacer means for supporting said spacer means in an upright position, and means for journaling said shaft, each of said spacer means comprising a rigid base support and a replaceable cutter bar secured to an upper surface of said base support and cooperating with a respective one of said cutter blades to accomplish shredding of waste materials introduced in said shredder.

Claim 15

A shredder including, in combination, a shaft, a plurality of mutually spaced cutter blades keyed to said shaft for revolvement therewith; a plurality of mutually spaced, upstanding spacer means for defining, at adjacent sides of adjacent ones of said spacer means, travel paths for said cutter blades; supporting means disposed at opposite extremities of said spacer means for supporting said spacer means in an upright position, and means for journaling said shaft, each of said spacer means comprising a rigid base support and a replaceable cutter bar secured to an upper surface of said base support and cooperating with a respective one of said cutter blades to accomplish shredding of waste materials introduced in said shredder.

Claim 16

The shredder of claim 11 wherein said spacer means are of sufficient length that adjacent ones thereof define travel paths for respective ones of said cutter blades for both shearing descents thereof toward said spacer means and also for return travel thereof.

Claim 17

The shredder of claim 11 wherein said plural ones of said spacer means are provided with journal halves receiving said shaft, said shredder also including journal-half members releasably secured over said journal halves for journalingly containing said shaft therein, said journal halves and journal-half members comprising said journaling means.

Claim 18

The shredder of claim 11 wherein each of said cutter blades includes a cutter blade member keyed to said shaft and a replaceable, cutter blade secured to said cutter blade member whereby to supply shearing edge means therefor.

Claim 19

The shredder of claim 11 wherein each of said spacer means includes an upwardly inclined surface, extending laterally of said shaft, whereby to provide gravity feed via said angulated surface relative to materials to be cut by said cutter blades.

Claim 20

The structure of claim 11 wherein said supporting means comprises means respectively securing corresponding ones of both of said extremities of said spacer means in mutually spaced, rigidly secured relationship.

Claim 21

The shredder of claim 14 wherein said cutter blade bar is keyed to said cutter blade member.

Claim 22

The shredder of claim 17 wherein said cutter blade bar includes a longitudinally concave, lower shearing surface.

Claim 23

A shredder including, in combination, a pair of parallel shafts, means for journaling said shafts, means for oppositely revolving such shafts coupled thereto, first and second pluralities of mutually placed cutter blades respectfully keyed to respective ones said shafts for revolvement therewith; a plurality of upstanding spacer means for defining, at adjacent sides of adjacent ones of said spacer means, travel paths for said cutter blades of both of said shafts; and means for securing said spacer means together at opposite extremities thereof to form a rigid construction, each of said spacer means comprising a base support and a pair of replaceable cutter bars secured to a respective upper surface of said base support and cooperating with a respective one of said cutter blades to accomplish shredding of waste materials introduced in said shredder.

Claim 24

A shredder including, in combination, a pair of parallel shafts, means for journaling said shafts, means for oppositely revolving such shafts coupled thereto, first and second pluralities of mutually placed cutter blades respectfully keyed to respective ones said shafts for revolvement therewith; a plurality of upstanding spacer means for defining, at adjacent sides of adjacent ones of said spacer means, travel paths for said cutter blades of both of said shafts; and means for securing said spacer means together at opposite extremities thereof to form a rigid construction, each of said spacer means comprising a base support and a pair of replaceable cutter bars secured to a respective upper surface of said base support and cooperating with a respective one of said cutter blades to accomplish shredding of waste materials introduced in said shredder.

Claim 25

Structure according to claim 19 wherein said shredder includes plural, spacer elements means positioned medially between and engaging adjacent ones of said spacer means, and means for rigidly securing said spacer element means in position.

Claim 26

A shredder including, in combination, a pair of parallel shafts, means for journaling said shafts, means for oppositely revolving such shafts coupled thereto, first and second pluralities of mutually placed cutter blades respectfully keyed to respective ones said shafts for revolvement therewith; a plurality of upstanding spacer means for defining, at adjacent sides of adjacent ones of said spacer means, travel paths for said cutter blades of both of said shafts; and means for securing said spacer means together at opposite extremities thereof to form a rigid construction, each of said pluralities of cutter blades comprising individual cutter blades which are mutually angularly displaced, progressively, about respective ones of said shafts to form, compositely, helixlike cutter blade tip configurations, said cutter blades being disposed on their respective shafts such that those respective cutter blades at corresponding shaft areas of said shafts simultaneously approach said spacer means together in mutual correspondence, each of said spacer means comprising a base support and a pair of replaceable cutter bars secured to a respective upper surface of said base support and cooperating with a respective one of said cutter blades to accomplish shredding of waste materials introduced in said shredder.

Claim 27

A shredder including, in combination, a pair of parallel shafts, means for journaling said shafts, means for oppositely revolving such shafts coupled thereto, first and second pluralities of mutually placed cutter blades respectfully keyed to respective ones said shafts for revolvement therewith; a plurality of upstanding spacer means for defining, at adjacent sides of adjacent ones of said spacer means, travel paths for said cutter blades of both of said shafts; and means for securing said spacer means together at opposite extremities thereof to form a rigid construction, each of said pluralities of cutter blades comprising individual cutter blades which are mutually angularly displaced, progressively, about respective ones of said shafts to form, compositely, helixlike cutter blade tip configurations, said cutter blades being disposed on their respective shafts such that those respective cutter blades at corresponding shaft areas of said shafts simultaneously approach said spacer means together in mutual correspondence, each of said spacer means comprising a base support and a pair of replaceable cutter bars secured to a respective upper surface of said base support and cooperating with a respective one of said cutter blades to accomplish shredding of waste materials introduced in said shredder.

Claim 28

Shredding apparatus including, in combination, structure defining a through-put opening, a plurality of parallel, upstanding, mutually spaced cutter bar means spanning said opening, means for rigidly supporting said cutter bar means, a pair of parallel shafts journaled proximate to and disposed transversely with respect to said cutter bar means, means coupled to said shafts for rotating said shafts in opposite directions, first and second sets of mutually spaced cutter blades keyed to said shafts, respectively, and cooperatively disposed with respect to said cutter bar means for coacting therewith and passing through the spaces between adjacent cutter bar means, each of said sets of cutter blades being comprised of cutter blades which are mutually angularly displaced, progressively, about respective ones of said shafts, said cutter blades being disposed on their respective shafts such that those respective cutter blades at corresponding shaft areas, as said shafts rotate, simultaneously approach said cutter bar means together in mutual correspondence.

Claim 29

Shredding apparatus including, in combination, structure defining a through-put opening, a plurality of parallel, upstanding, mutually spaced cutter bar means spanning said opening, means for rigidly supporting said cutter bar means, a pair of parallel shafts journaled proximate to and disposed transversely with respect to said cutter bar means, means coupled to said shafts for rotating said shafts in opposite directions, first and second sets of mutually spaced cutter blades keyed to said shafts, respectively, and cooperatively disposed with respect to said cutter bar means for coacting therewith and passing through the spaces between adjacent cutter bar means, each of said sets of cutter blades being comprised of cutter blades which are mutually angularly displaced, progressively, about respective ones of said shafts, said cutter blades being disposed on their respective shafts such that those respective cutter blades at corresponding shaft areas, as said shafts rotate, simultaneously approach said cutter bar means together in mutual correspondence.