US845764A - Machine for slitting sheet metal. - Google Patents

Machine for slitting sheet metal. Download PDF

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Publication number
US845764A
US845764A US1901076221A US845764A US 845764 A US845764 A US 845764A US 1901076221 A US1901076221 A US 1901076221A US 845764 A US845764 A US 845764A
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United States
Prior art keywords
rolls
machine
pair
sheet
cutters
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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Inventor
Lewis E Curtis
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WILLIAM L CALDWELL
Original Assignee
WILLIAM L CALDWELL
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by WILLIAM L CALDWELL filed Critical WILLIAM L CALDWELL
Priority to US1901076221 priority Critical patent/US845764A/en
Application granted granted Critical
Publication of US845764A publication Critical patent/US845764A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B26D1/56—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 travels with the work otherwise than in the direction of the cut, i.e. flying cutter
    • B26D1/62—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 travels with the work otherwise than in the direction of the cut, i.e. flying cutter and is rotating about an axis parallel to the line of cut, e.g. mounted on a rotary cylinder
    • B26D1/626—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 travels with the work otherwise than in the direction of the cut, i.e. flying cutter and is rotating about an axis parallel to the line of cut, e.g. mounted on a rotary cylinder for thin material, e.g. for sheets, strips or the like
    • 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
    • Y10T29/00—Metal working
    • Y10T29/18—Expanded metal making
    • 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
    • Y10T83/465—Cutting motion of tool has component in direction of moving work
    • Y10T83/4705—Plural separately mounted flying cutters
    • 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
    • Y10T83/465—Cutting motion of tool has component in direction of moving work
    • Y10T83/4766—Orbital motion of cutting blade
    • Y10T83/4795—Rotary tool
    • Y10T83/4798—Segmented disc slitting or slotting tool

Definitions

  • SHEETS SHEET BY Zen is Z'. Caz/Z18 M. WW6.
  • This machine is designed to slit sheet metal preparatory to expanding it by opening the slits.
  • I employ two pairs of slitting-rolls arranged one in advance of the other, each cutting the slits in alternate rows and in such relation to each other that the break joints with each other.
  • Figure 1 is a side elevation, Fig. 2 a plan, and Fig. 3 a longitudinal vertical section, of a slitting-machine constructed according to my present invention.
  • Fig. 4 is a partial vertical section of the slitting-rolls.
  • Fig. 5 is a detail elevation of one of the cutters, and Fig. 6 shows the cuts made in the sheet by the rolls.
  • the first pair of rolls are designated by the numerals 20 and 21 and the second pair by the numerals 22 and 23, They are similar in construction except that the cutters of one pair are arranged to operate in planes between the planes in which the cutters of the other pair operate.
  • the cutters of all the rolls are indicated at 24, and each is of a thickness or width across its periphery equaling the width of two strands of the shtted metal. They are arranged on the rolls with spacing-rings 25 beadjusted that the cutters of one roll will be opposite the spacing-rings of the other roll and so that the cutters Wlll lap by each other sufficiently to effect the severation of the metal. They are notched entirely across their peripheries, as shown at 26, but may be notched on the side, if preferred, according to my said patent.
  • the second pair of rolls out rows of slits between the rows of slits cut by the first pair, as will be understood from Fig. 6, where 27 indicates theslits formed by one pair of rolls, and 28 those formed by the other pair of rolls.
  • the notches 26 interrupt the cutting, thereby forming the bonds or uncut portions 33.
  • the cutters are desirably confined on the rolls by clamping-nuts 29 and rings 30 at each end of the rolls, and strippers 31 are desirably employed with each pair of rolls to prevent any tendency by the sheet to bend around either roll.
  • a support 32 is desirable between the pairs of rolls.
  • each pair ofthe rolls is sov of one pair of the lower one of the second pair of rolls.
  • the combination with a frame, of a plurality of pairs of coacting' rolls means arranged on sai rolls equidistant apart and adapted -to cut a sheet ofmetal of short slits arranged staggering with each other and a uniform distance a art, .each of said pairs of rolls formingha of said slits.
  • the sheet-metalslitting machine w erein are combined two pairs of slitting-rolls, one pair in advance 0 the other pair, and
  • I both provided with notched cutters extend- I ing the entire width of the sheet, and so arranged that the rows of slits formed by one pair alternate with the rows formed by the other air, and so the slits in the difi'erent rows reakv joints, said cutters being also adapted to sht the sheet without bending the metal.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shearing Machines (AREA)
  • Nonmetal Cutting Devices (AREA)

Description

PATENTED MAR. 5,- 1907, L. E. CURTIS.
MACHINE FOR SLITTING SHEET METAL.
APPLIOATION FILED SEPT.23, 1901.
4 SHEETS-SHEET 1.
WI TNESSES a; mama:
[/VVENTOR. Zen Z61: C'ariz's A TTORNE K5 No. 845,764. PATENTED MAR 5, 1907; L. E. CURTIS.
' MACHINE FOR SLITTING SHEET METAL.
- APPLIOATION FILED SEPT.23.1901.
WITNESSES INVENTOR. BY Zen Z6 Z. 62111 26 7 m W kNEYS 4 SHEETS-SHEET 2.
PATENTED MAR. 5, 190.7.
' L. E. CURT MACHINE FOR SLITTING APPLIOATIO ILBD s SHEET METAL.
EPT. 23,1901.
. 4 SHEETS SHEET BY Zen is Z'. Caz/Z18 M. WW6.
A TTURNEY/S f PATENTED MAR. 5, 1907.
No. 845,764. L. E. mums.
MACHINE FOR SLITTING SHEET METAL.
, APPLIOATION FILED SEPT. 23. 1901.
- 4 SHEETS-SHEET 4.
a o :21 l n no w \n 3 E WITNESSES v V INVENTOR.
' BY Zen L's Z7. Carla's M'WTTORNEYJ slits in the different rows UNITED sTA rns PATENT OFFICE.
LEWIS E. CURTIS, OF CHICAGO, ILLINOIS, ASSIGN OR TO OSCAR BRAD- FORD, OF CHICAGO, ILLINOIS NEW YORK, N. Y.
, AND WILLIAM L. CALDWELL, OF
MACHINE FOR SLITTING SHEET METAL.
Specification of Letters Patent.
Patented March .5, 1907.
Application filed September 28. 1901. Serial No. 76,221.
To all, whom it may concern:
Be it known that I, LEWIS E. CURTIs, a citizen of the United States, residing in Chicago, in the county of Cook and State of'Illinois, have invented a new and useful Imrovement in Machines for Slitting Sheet fetal, of which the following is'a specification. 1
This machine is designed to slit sheet metal preparatory to expanding it by opening the slits. In it I employ two pairs of slitting-rolls arranged one in advance of the other, each cutting the slits in alternate rows and in such relation to each other that the break joints with each other.
' In the Patent No. 671,915, granted to me April 9, 1901 I show a single pair of rolls for slitting the metal and acting to cut all the slits in their proper relation and we 1 ada ted to operate upon metal wherein the widt of the strands formed by the machine is greater than the thickness of the metal; but the machine of that patent is not well adapted to be used in slitting sheets where the strands to be formed are narrow and square in crosssection, because the disks or cutters can only' be made as thick as the strands are wide and cannot, therefore, be notched deep enough to allow the uncut portions or bonds to assume their angling position into which they are necessarily forced while the cuts are being made without so weakening the cutters as to render them unable to stand up under the cutting operation. It is essential that the bend in the metal shall not be at such a sharp angle as to weaken the fabric, and this can only be avoided in the patented machine by notching the cutters deeply. With the present machine this bending is wholly obviated, and it permits the cutters to be made to agree in thickness with the width of two strands instead of one, and each pair of cutters forms the slits in alternate rows only, so that it becomes unimportant whether the cutters are notched on the side in the manner of my said patent or clear across their peripheries, as :shown herein.
The nature of my'present invention will be fully understood from the accompanying drawing and the description thereof given below.
In said drawing, Figure 1 is a side elevation, Fig. 2 a plan, and Fig. 3 a longitudinal vertical section, of a slitting-machine constructed according to my present invention. Fig. 4 is a partial vertical section of the slitting-rolls. Fig. 5 is a detail elevation of one of the cutters, and Fig. 6 shows the cuts made in the sheet by the rolls.
In said drawing, 10' re resents. the frame of the machine, 11 the ta le fromwhich the sheets of metal are fed, and 12 the table onto which they are delivered after being slitted.
13 is the drive-pulley on shaft 14, carrying a pinion 15, meshing with gear 16 on the journal of the'lower one of the first air of rolls and also with the gear 17 on the ournal The gears 16 and 17 mesh with gears. 18 and 19 on the journals of the upper roll of each pair, as shown at Fig. 1.
The first pair of rolls are designated by the numerals 20 and 21 and the second pair by the numerals 22 and 23, They are similar in construction except that the cutters of one pair are arranged to operate in planes between the planes in which the cutters of the other pair operate.
The cutters of all the rolls are indicated at 24, and each is of a thickness or width across its periphery equaling the width of two strands of the shtted metal. They are arranged on the rolls with spacing-rings 25 beadjusted that the cutters of one roll will be opposite the spacing-rings of the other roll and so that the cutters Wlll lap by each other sufficiently to effect the severation of the metal. They are notched entirely across their peripheries, as shown at 26, but may be notched on the side, if preferred, according to my said patent. The second pair of rolls out rows of slits between the rows of slits cut by the first pair, as will be understood from Fig. 6, where 27 indicates theslits formed by one pair of rolls, and 28 those formed by the other pair of rolls. The notches 26 interrupt the cutting, thereby forming the bonds or uncut portions 33.
The cutters are desirably confined on the rolls by clamping-nuts 29 and rings 30 at each end of the rolls, and strippers 31 are desirably employed with each pair of rolls to prevent any tendency by the sheet to bend around either roll. A support 32 is desirable between the pairs of rolls. Of course it will be understood that feed-rolls may be used with this machine in the same manner as with my patented machine.
tween them, and each pair ofthe rolls is sov of one pair of the lower one of the second pair of rolls.
' into a plurality I claim- 1. In a machine of the class described, the combination with a frame, of a plurality of pairs of coacting' rolls means arranged on sai rolls equidistant apart and adapted -to cut a sheet ofmetal of short slits arranged staggering with each other and a uniform distance a art, .each of said pairs of rolls formingha of said slits.
2. The sheet-metal-slittin machine wherein are combined two pairs 0 slitting-rolls arranged one in advance of the other, said rolls bein adapted to slit the sheet without bending t e metal, and each roll being provided with a series of cutters extending the entire width of the sheet, and each pair of.rolls forming. slits in rows alternating with the slits formed by the cutters of the other air.
3. The sheet-metalslitting machine w erein are combined two pairs of slitting-rolls, one pair in advance 0 the other pair, and
(iournaled thereon,
I both provided with notched cutters extend- I ing the entire width of the sheet, and so arranged that the rows of slits formed by one pair alternate with the rows formed by the other air, and so the slits in the difi'erent rows reakv joints, said cutters being also adapted to sht the sheet without bending the metal.
4. The sheet-metal-slitting machine wherein are combined two airs of slitting-rolls arranged one air in a vance of the other, and both provi ed with notched cutters whose thickness e uals the width of two strands of so the rows of slits out by one pair of rolls alternate with the rows of slits out by the other pair, and being adapted to cut the sheet without bending the metal.
- LEWIS E. CURTIS. Witnesses:
H. M. MUNDAY, Enw. S. VEVARIS.
the slitted s eet, said cutters beingarranged'
US1901076221 1901-09-23 1901-09-23 Machine for slitting sheet metal. Expired - Lifetime US845764A (en)

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2699208A (en) * 1950-09-13 1955-01-11 Ecusta Paper Corp Apparatus for forming perforated tea bag paper
US3329049A (en) * 1964-04-02 1967-07-04 Ici Ltd Polymer chip cutter
US3509788A (en) * 1967-11-17 1970-05-05 F P Rosback Co Flat stock perforator
US3575027A (en) * 1968-09-04 1971-04-13 Paul Eisler Manufacture of patterned webs
US3774274A (en) * 1970-07-16 1973-11-27 Jury & Spiers Pty Ltd Means and method for producing expanded metal
US3903769A (en) * 1972-07-17 1975-09-09 Comalco J & S Pty Means and method of slotting strip metal
US4033240A (en) * 1975-05-14 1977-07-05 Deslauriers Clovis F Rotary stripping wheel
US4144624A (en) * 1976-09-02 1979-03-20 Explosafe America Inc. Machine for expanding metal webs
US4266458A (en) * 1978-02-16 1981-05-12 Rogers J W Slitting cutter for partially slitting sheet metal web
US5284042A (en) * 1991-05-27 1994-02-08 Danieli & C. Officine Meccaniche Spa Method to obtain sections and/or bars in the cold state, and sections and/or bars thus obtained
US6119568A (en) * 1998-04-07 2000-09-19 Denso Corporation Piercing apparatus
US20220032382A1 (en) * 2017-05-11 2022-02-03 Ikg Usa, Llc Rotary serrator knife

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2699208A (en) * 1950-09-13 1955-01-11 Ecusta Paper Corp Apparatus for forming perforated tea bag paper
US3329049A (en) * 1964-04-02 1967-07-04 Ici Ltd Polymer chip cutter
US3509788A (en) * 1967-11-17 1970-05-05 F P Rosback Co Flat stock perforator
US3575027A (en) * 1968-09-04 1971-04-13 Paul Eisler Manufacture of patterned webs
US3774274A (en) * 1970-07-16 1973-11-27 Jury & Spiers Pty Ltd Means and method for producing expanded metal
US3903769A (en) * 1972-07-17 1975-09-09 Comalco J & S Pty Means and method of slotting strip metal
US4033240A (en) * 1975-05-14 1977-07-05 Deslauriers Clovis F Rotary stripping wheel
US4144624A (en) * 1976-09-02 1979-03-20 Explosafe America Inc. Machine for expanding metal webs
US4266458A (en) * 1978-02-16 1981-05-12 Rogers J W Slitting cutter for partially slitting sheet metal web
US5284042A (en) * 1991-05-27 1994-02-08 Danieli & C. Officine Meccaniche Spa Method to obtain sections and/or bars in the cold state, and sections and/or bars thus obtained
US6119568A (en) * 1998-04-07 2000-09-19 Denso Corporation Piercing apparatus
US20220032382A1 (en) * 2017-05-11 2022-02-03 Ikg Usa, Llc Rotary serrator knife
US11648614B2 (en) * 2017-05-11 2023-05-16 Ikg Usa, Llc Rotary serrator knife

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