US2662598A - Multibladed disk knife slitting mechanism - Google Patents
Multibladed disk knife slitting mechanism Download PDFInfo
- Publication number
- US2662598A US2662598A US79076547A US2662598A US 2662598 A US2662598 A US 2662598A US 79076547 A US79076547 A US 79076547A US 2662598 A US2662598 A US 2662598A
- Authority
- US
- United States
- Prior art keywords
- knife
- blades
- shaft
- multibladed
- slitting mechanism
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Images
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06H—MARKING, INSPECTING, SEAMING OR SEVERING TEXTILE MATERIALS
- D06H7/00—Apparatus or processes for cutting, or otherwise severing, specially adapted for the cutting, or otherwise severing, of textile materials
- D06H7/04—Apparatus or processes for cutting, or otherwise severing, specially adapted for the cutting, or otherwise severing, of textile materials longitudinally
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
- B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
- B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
- B26D1/14—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter
- B26D1/22—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter coacting with a movable member, e.g. a roller
- B26D1/225—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter coacting with a movable member, e.g. a roller for thin material, e.g. for sheets, strips or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
- B26D3/02—Bevelling
-
- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14B—MECHANICAL TREATMENT OR PROCESSING OF SKINS, HIDES OR LEATHER IN GENERAL; PELT-SHEARING MACHINES; INTESTINE-SPLITTING MACHINES
- C14B5/00—Clicking, perforating, or cutting leather
-
- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14B—MECHANICAL TREATMENT OR PROCESSING OF SKINS, HIDES OR LEATHER IN GENERAL; PELT-SHEARING MACHINES; INTESTINE-SPLITTING MACHINES
- C14B2700/00—Mechanical treatment or processing of skins, hides or leather in general; Pelt-shearing machines; Making driving belts; Machines for splitting intestines
- C14B2700/11—Machines or apparatus for cutting or milling leather or hides
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/768—Rotatable disc tool pair or tool and carrier
- Y10T83/7684—With means to support work relative to tool[s]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/768—Rotatable disc tool pair or tool and carrier
- Y10T83/7751—Means to separate elements of tool pair
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/768—Rotatable disc tool pair or tool and carrier
- Y10T83/7809—Tool pair comprises rotatable tools
- Y10T83/7851—Tool pair comprises disc and cylindrical anvil
- Y10T83/7855—With adjustable means to urge tool elements together
Definitions
- This invention relates to a machine for slitting sheet material so as to form simultaneously a plurality of narrow strips, such strips being preferably of uniform Width.
- a slitting mechanism which slits the marginal portion of a sheet into a plurality of narrow strips.
- This mechanism is characterized by a rotary cutter having a plurality of disk blades which are coaxial and are uniformly spaced apart.
- a press roll is pressed tangentially against the blades, the press roll being pivotally supported by a floating connection so that its pressure against the individual blades is equalized.
- a work table is also provided in conjunction with a knife and press roll.
- the mechanism embodied in the invention is designed for economy, efficiency and ease of assembly and adjustment.
- Figure 1 is an elevational view of a mechanism embodying the invention
- Figure 2 is a section on line 2-2 of Figure l;
- Figure 3 is a rear elevational view of the mechanism shown in Figure 1.
- the slitting mechanism illustrated on the drawing comprises a main frame I0, which includes a downwardly-extending bracket I2 having a clamp screw I4 threaded through the extremity thereof so as to facilitate the clamping of the machine on an ordinary table I6.
- Mounted on the frame I is a work table 20 which has a rectangular aperture 22.
- a rotary knife 24 is rotatably mounted beneath the table so that its top projects up through the aperture 22.
- This knife is mounted on a horizontal shaft 26 which is journaled in the frame I0 and is provided with an operating crank 28, having a crank handle (not shown) at its extremity.
- the knife 24 is mounted on a portion 30 of the shaft 26 of reduced diameter, being clamped in place by a wing nut 32 threaded on a reduced extension 2 34 of the shaft.
- a suitable washer 36 may be employed between the nut and the knife 24.
- the knife preferably consists of a plurality of, annular disk blades 45 with sharp Acircumferential edges arranged in coaxial, equally spaced relation. These blades are embedded in and secured together by a hub member 42 of suitable cast metal.
- This hub member 42 is cylindrical and is coaxial with the blades 4i).
- the outside diameter of the hub member is necessarily less than that of the blades, the difference being suiiicient to accommodate the thickness of the sheet material to be slitted, but the hub diameter is preferablyr as great as is practical so as to fill the aperture 22 in the work table 20 and thus to minimize the possibility of the strips of material becoming tangled and jammed at the knife.
- the hub member 42 has an axial bore adapted to receive the reduced portion 30 of the shaft 26 with a close fit so that there is lpractically no lateral play between the knife 24 and the shaft on which it is mounted. Since the cast metal 42 may have a co-eicient of thermal expansion different from that of the blades, the Ablades are preferably made with vcircular grooves 44 in one or both faces. The inner diameter of the annular ⁇ blades is preferably greater than the diameter of the bore of the hub member 42, so that except for the projecting circumferential portion of each blade, the entire blade surface is covered by the cast metal. When the hub member is cast so as to embrace the blades 40, the metal enters the grooves 44 and thus locks the several blades against any looseness with respect to the hub member.
- a cylindrical press roll 50 is supported above the knife 24 and is adapted to press firmly against the cutting edges of the blades 49.
- This roll is rotatably mounted on a shaft 52 which extends between the arms 54 of a fork 56.
- the shank 58 of the fork is curved to support a shaft 60 which extends approximately parallel to the arms 54.
- the shaft 66 extends through and bears in the end portion 62 of an arm 64 which projects laterally from a bracket 66.
- both end portions of the shaft 60 are secured in the fork 56, the shaft providing a pivotal or floating connection between the roll 50 and the bracket 66.
- the axis of the shaft 60 is at right angles to a plane containing the axis of rotation of the roll 50.
- the axis of this roll can rock freely so as to equalize the pressure of the roll against the individual blades 40.
- the roll 50 is pressed firmly against the blades 40 by any suitable means such as a tension rod 10, one end of which is anchored in the main frame l0, as at 12, the other end being screw-threaded to receive a wing nut 14.
- the portion of the rod 10 adjacent to the wing nut passes through the bracket 66 near the extremity thereof where the arm 64 projects laterally therefrom.
- the bracket ⁇ 66 is pivotally mountedf on theframe l0, as at 16.1, By screw.- ing down the nut 14,' the pressurerof the roll 50 against the blades 40 can be adjustably varied.
- a guide rail 80 whichmay be secured to the table-by a bolt 82 and wing nut 84;
- This width is-.pref, erably thesameias that :of thefstripsfcut between successive blades;l If; widen or. narrower stri-ps are desired, another -rotaryknifewith differently spacedblades lis substitutedyfor the knife 24;-
- the mainfA frame; l A andv bracket EB maybefdieecastingspf, afsu-itablemetal alloy having sufficient .mechanical strer,1gtl1.
- an alloy ycorrtain-ing 96% zinc and about. 4%; aluminumissuitable, for ⁇ thesevparts.'v A, lsimilarV alloy can .-,beausredf inl i casting; the fshaft.
- crank28 in-one pieceeaboutfagsteel core which prOjeCtsatfthesendf ofgtlne ⁇ shaft andwis, screw-threaded ⁇ at 1 34:; Afsimilar; alloy; cani. be used for the ⁇ hub membexMZ .lof .thei rotaryv ⁇ knife, 24, the-blades beinggof thigh-speed?? steel;A tempered.- andr ground .before beingfassembled.
- a suitable examplerof highzspeed steel isfa ysteel containing.
- a slitting mechanism comprising a frame, a horizontal Iwork table with, any;v aperture secured on said frame,- a-multi-bladed disc-knife mounted below said table for rotation about a horizontal axis, said knife projecting up through said... aperture slightly above the level of the table, a rotatable shaft journalled in said frame and carrying said knife, an operating crank in saidshaft; a. .bracket pivotally secured at one en d to said frame at one side of said shaft and extending above and beyond said shaft to the ottici-.iside thereof, a tension member attached at one end to said frame on said other side of the shaft.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Fiber Materials (AREA)
Description
Dec. 15, 1953 H. A. BURDwooD MULTIBLADED DISK KNIFE SLITTING MECHANISM Filed Dec. lO, 1947 Patented Dec. l5, V195.3
MULTIBLADED DISK KNIFE SLITTING MECHANISM Howard A. Burdwood, Portland, Maine Application December 10, 1947, Serial No. 790,765
1 Claim. l
This invention relates to a machine for slitting sheet material so as to form simultaneously a plurality of narrow strips, such strips being preferably of uniform Width.
It is an object of the invention to provide a machine for cutting cloth, paper, leather, or other equivalent sheet materials into strips for any desired purpose. For example, pieces of cloth are frequently cut into strips for the manufacture of hooked, crocheted or braided rugs. Cutting narrow strips from pieces of cloth by the use of ordinary scissors is slow and tedious and usually results in strips of more or less irregular width. According to the present invention, a slitting mechanism is provided which slits the marginal portion of a sheet into a plurality of narrow strips. This mechanism is characterized by a rotary cutter having a plurality of disk blades which are coaxial and are uniformly spaced apart. A press roll is pressed tangentially against the blades, the press roll being pivotally supported by a floating connection so that its pressure against the individual blades is equalized. A work table is also provided in conjunction with a knife and press roll.
The mechanism embodied in the invention is designed for economy, efficiency and ease of assembly and adjustment.
Further advantageous features of the invention will be apparent from the following description thereof and from the drawing, of which:
Figure 1 is an elevational view of a mechanism embodying the invention;
Figure 2 is a section on line 2-2 of Figure l; and
Figure 3 is a rear elevational view of the mechanism shown in Figure 1.
The slitting mechanism illustrated on the drawing comprises a main frame I0, which includes a downwardly-extending bracket I2 having a clamp screw I4 threaded through the extremity thereof so as to facilitate the clamping of the machine on an ordinary table I6. Mounted on the frame I is a work table 20 which has a rectangular aperture 22. A rotary knife 24 is rotatably mounted beneath the table so that its top projects up through the aperture 22. This knife is mounted on a horizontal shaft 26 which is journaled in the frame I0 and is provided with an operating crank 28, having a crank handle (not shown) at its extremity. The knife 24 is mounted on a portion 30 of the shaft 26 of reduced diameter, being clamped in place by a wing nut 32 threaded on a reduced extension 2 34 of the shaft. A suitable washer 36 may be employed between the nut and the knife 24.
As indicated in Figure 2, the knife preferably consists of a plurality of, annular disk blades 45 with sharp Acircumferential edges arranged in coaxial, equally spaced relation. These blades are embedded in and secured together by a hub member 42 of suitable cast metal. This hub member 42 is cylindrical and is coaxial with the blades 4i). The outside diameter of the hub member is necessarily less than that of the blades, the difference being suiiicient to accommodate the thickness of the sheet material to be slitted, but the hub diameter is preferablyr as great as is practical so as to fill the aperture 22 in the work table 20 and thus to minimize the possibility of the strips of material becoming tangled and jammed at the knife. The hub member 42 has an axial bore adapted to receive the reduced portion 30 of the shaft 26 with a close fit so that there is lpractically no lateral play between the knife 24 and the shaft on which it is mounted. Since the cast metal 42 may have a co-eicient of thermal expansion different from that of the blades, the Ablades are preferably made with vcircular grooves 44 in one or both faces. The inner diameter of the annular `blades is preferably greater than the diameter of the bore of the hub member 42, so that except for the projecting circumferential portion of each blade, the entire blade surface is covered by the cast metal. When the hub member is cast so as to embrace the blades 40, the metal enters the grooves 44 and thus locks the several blades against any looseness with respect to the hub member.
A cylindrical press roll 50 is supported above the knife 24 and is adapted to press firmly against the cutting edges of the blades 49. This roll is rotatably mounted on a shaft 52 which extends between the arms 54 of a fork 56. The shank 58 of the fork is curved to support a shaft 60 which extends approximately parallel to the arms 54. The shaft 66 extends through and bears in the end portion 62 of an arm 64 which projects laterally from a bracket 66. Preferably, both end portions of the shaft 60 are secured in the fork 56, the shaft providing a pivotal or floating connection between the roll 50 and the bracket 66. The axis of the shaft 60 is at right angles to a plane containing the axis of rotation of the roll 50. Hence, the axis of this roll can rock freely so as to equalize the pressure of the roll against the individual blades 40. The roll 50 is pressed firmly against the blades 40 by any suitable means such as a tension rod 10, one end of which is anchored in the main frame l0, as at 12, the other end being screw-threaded to receive a wing nut 14. The portion of the rod 10 adjacent to the wing nut passes through the bracket 66 near the extremity thereof where the arm 64 projects laterally therefrom. The bracket `66 is pivotally mountedf on theframe l0, as at 16.1, By screw.- ing down the nut 14,' the pressurerof the roll 50 against the blades 40 can be adjustably varied. If the nut 14 is removed from the rod` 10, the bracket 66, with the roll ;,5.IJ1 and-cone` necting members, `can be swung back out oft-thee way of the knife 24 to facilitate the clearing of any jammed material or replacement oftheknife.
Along the side edge of the table 20 adjacent to the aperture 22 is a guide rail 80 whichmay be secured to the table-by a bolt 82 and wing nut 84;; This` guidefraili.canA thus beadjuted so thev portion remote. from4 theffend=,fsecuredby thev "bolt 82 is .moved toward vor; fromsthe' nearest lblade 40, thusdetermining.- the Width;ofthe marginalstrip out from--the/,work` sheet-which is sent through the:-slitter. This width is-.pref, erably thesameias that :of thefstripsfcut between successive blades;l If; widen or. narrower stri-ps are desired, another -rotaryknifewith differently spacedblades lis substitutedyfor the knife 24;-
and the guide 80 .isadjustedaccordingly.
For convenienceand economy` in manufacture slitting mechanismsf` i, the mainfA frame; l A andv bracket EB maybefdieecastingspf, afsu-itablemetal alloy having sufficient .mechanical strer,1gtl1.` For example, an alloy ycorrtain-ing ,96% zinc and about. 4%; aluminumissuitable, for` thesevparts.'v A, lsimilarV alloy can .-,beausredf inl i casting; the fshaft. 26 and crank28 in-one pieceeaboutfagsteel core which prOjeCtsatfthesendf ofgtlne` shaft andwis, screw-threaded` at 1 34:; Afsimilar; alloy; cani. be used for the` hub membexMZ .lof .thei rotaryv` knife, 24, the-blades beinggof thigh-speed?? steel;A tempered.- andr ground .before beingfassembled. A suitable examplerof highzspeed steelisfa ysteel containing. 18%', tungsten, 4% .chromium;, 1%v vanadium and;.75.%; carbon; but otherhighspeedi steels, .suchf as those.:A containing; molybdenum; with' or instead of: tungsten, are alsosatisfactory for the.purpose.v The'melti-ng pointlofthe. alf; loy is notfhigh Aenoughfto soften oeotherwiseaf: feet theA blades adverselywhengthe; hubgmemf ber is Acast,\1v-itha.set of` bladesfthereing The press roll is` preferably ofarzhardenedfgcarborr steel which is not scored by the cutting edges of the blades when pressed against them. It is to be understood, however, that the foregoing materials are referred to by way of illustration and. that invention is not necessarily limited thereto.
What I claim is:
A slitting mechanism comprising a frame, a horizontal Iwork table with, any;v aperture secured on said frame,- a-multi-bladed disc-knife mounted below said table for rotation about a horizontal axis, said knife projecting up through said... aperture slightly above the level of the table, a rotatable shaft journalled in said frame and carrying said knife, an operating crank in saidshaft; a. .bracket pivotally secured at one en d to said frame at one side of said shaft and extending above and beyond said shaft to the ottici-.iside thereof, a tension member attached at one end to said frame on said other side of the shaft. and,adjustably attached tothe free endof the bracket, anf armjprojecting from said bracket out over thetab'le, a press roll*` supported on said knife andY rotatable aboutan axis parallel to that of the knife, supporting means operatively connecting. said press roll and arm whereby rocking movement of said bracket about its pivot moves said press roll to or from contact with -said knife, and means on said tension member operable to, draw thefree end of said bracket. downward so asto Vary the pressure yo1' said press roll against said knife.
HOWARD A; BURDWOOD.-
References Cited -vin the le of this'patent UNITEDSTIATES PATENTS.
Number. Name Date "13,243: Goodyear' Jan; 14.411868. 148203. Gardiner .I Mar.; 3,1874 592,869 Hannum Nov.: 2,1189?? 665,007; Hearne Jan' 1,1901. 995,868. Housam June 20,-191-1 1,090;5.33; Heinkel Mar. 17,1914 1,136,758 Ballard; ,Apr. 20;..1915 1,524,7'07 Golden Fbr. 3,519.25 1,695,715 Merrick; Decr 18; .19.28 1,892,680.' Petersen Jan'. 3,. 1933V 1,932,563 Thewes Oct-31, 19334 1,965,738.- FrostedI July1.0,';19.34 1,996,127` Stacey Apr..- 2,l 1935 2,000,475r Johnstone May v'1,.1935 2,019,499 Maher Nov. 5,1935.' 2,239,454; Carlson Apr. 22,'11941
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US79076547 US2662598A (en) | 1947-12-10 | 1947-12-10 | Multibladed disk knife slitting mechanism |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US79076547 US2662598A (en) | 1947-12-10 | 1947-12-10 | Multibladed disk knife slitting mechanism |
Publications (1)
Publication Number | Publication Date |
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US2662598A true US2662598A (en) | 1953-12-15 |
Family
ID=25151680
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US79076547 Expired - Lifetime US2662598A (en) | 1947-12-10 | 1947-12-10 | Multibladed disk knife slitting mechanism |
Country Status (1)
Country | Link |
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US (1) | US2662598A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2875689A (en) * | 1953-04-01 | 1959-03-03 | R L Crain Ltd | Strip printer and burster |
US3055248A (en) * | 1959-06-05 | 1962-09-25 | Howard A Burdwood | Slitting machine |
US3276306A (en) * | 1964-04-18 | 1966-10-04 | Winkler Richard | Cutting device for making cuts in sheet material |
Citations (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US73243A (en) * | 1868-01-14 | Impboved machine fob scalloping leathee | ||
US148203A (en) * | 1874-03-03 | Improvement in machines for cutting welts | ||
US592869A (en) * | 1897-11-02 | Rotary cutter | ||
US665007A (en) * | 1900-09-21 | 1901-01-01 | Robert J Hearne | Rotary-cutter machine. |
US995868A (en) * | 1910-11-17 | 1911-06-20 | George A Housam | Perforating-machine. |
US1090533A (en) * | 1910-03-22 | 1914-03-17 | Christian F Heinkel | Method of joining materials. |
US1136758A (en) * | 1911-04-15 | 1915-04-20 | Tripp Fruit Wrapping Machine Company | Label-cutting machine. |
US1524707A (en) * | 1924-07-02 | 1925-02-03 | David Schuff | Pinking and winding machine |
US1695715A (en) * | 1926-09-14 | 1928-12-18 | American Stay Co | Slitting machine |
US1892680A (en) * | 1931-06-11 | 1933-01-03 | Patent & Licensing Corp | Cutting mechanism for composition constructional material |
US1932563A (en) * | 1931-03-09 | 1933-10-31 | Ridge Tool Co | Cutter die |
US1965738A (en) * | 1928-12-18 | 1934-07-10 | Cameron Machine Co | Cutting mechanism |
US1996127A (en) * | 1931-02-17 | 1935-04-02 | United Shoe Machinery Corp | Machine for operating upon sheet material |
US2000175A (en) * | 1934-08-09 | 1935-05-07 | Cameron Machine Co | Combined slitting and crushing device |
US2019499A (en) * | 1933-11-23 | 1935-11-05 | American Can Co | Scoring machine |
US2239454A (en) * | 1939-10-20 | 1941-04-22 | Hobbs Mfg Company | Scoring cutter |
-
1947
- 1947-12-10 US US79076547 patent/US2662598A/en not_active Expired - Lifetime
Patent Citations (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US73243A (en) * | 1868-01-14 | Impboved machine fob scalloping leathee | ||
US148203A (en) * | 1874-03-03 | Improvement in machines for cutting welts | ||
US592869A (en) * | 1897-11-02 | Rotary cutter | ||
US665007A (en) * | 1900-09-21 | 1901-01-01 | Robert J Hearne | Rotary-cutter machine. |
US1090533A (en) * | 1910-03-22 | 1914-03-17 | Christian F Heinkel | Method of joining materials. |
US995868A (en) * | 1910-11-17 | 1911-06-20 | George A Housam | Perforating-machine. |
US1136758A (en) * | 1911-04-15 | 1915-04-20 | Tripp Fruit Wrapping Machine Company | Label-cutting machine. |
US1524707A (en) * | 1924-07-02 | 1925-02-03 | David Schuff | Pinking and winding machine |
US1695715A (en) * | 1926-09-14 | 1928-12-18 | American Stay Co | Slitting machine |
US1965738A (en) * | 1928-12-18 | 1934-07-10 | Cameron Machine Co | Cutting mechanism |
US1996127A (en) * | 1931-02-17 | 1935-04-02 | United Shoe Machinery Corp | Machine for operating upon sheet material |
US1932563A (en) * | 1931-03-09 | 1933-10-31 | Ridge Tool Co | Cutter die |
US1892680A (en) * | 1931-06-11 | 1933-01-03 | Patent & Licensing Corp | Cutting mechanism for composition constructional material |
US2019499A (en) * | 1933-11-23 | 1935-11-05 | American Can Co | Scoring machine |
US2000175A (en) * | 1934-08-09 | 1935-05-07 | Cameron Machine Co | Combined slitting and crushing device |
US2239454A (en) * | 1939-10-20 | 1941-04-22 | Hobbs Mfg Company | Scoring cutter |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2875689A (en) * | 1953-04-01 | 1959-03-03 | R L Crain Ltd | Strip printer and burster |
US3055248A (en) * | 1959-06-05 | 1962-09-25 | Howard A Burdwood | Slitting machine |
US3276306A (en) * | 1964-04-18 | 1966-10-04 | Winkler Richard | Cutting device for making cuts in sheet material |
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