US901772A - Process of cutting sheet metal. - Google Patents

Process of cutting sheet metal. Download PDF

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Publication number
US901772A
US901772A US41269408A US1908412694A US901772A US 901772 A US901772 A US 901772A US 41269408 A US41269408 A US 41269408A US 1908412694 A US1908412694 A US 1908412694A US 901772 A US901772 A US 901772A
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United States
Prior art keywords
sections
slits
sheet metal
bond
cutting sheet
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US41269408A
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Andrew Benson
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LEWIS E CURTIS
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LEWIS E CURTIS
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Priority to US41269408A priority Critical patent/US901772A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D31/00—Other methods for working sheet metal, metal tubes, metal profiles
    • B21D31/04—Expanding other than provided for in groups B21D1/00 - B21D28/00, e.g. for making expanded metal
    • B21D31/046—Expanding other than provided for in groups B21D1/00 - B21D28/00, e.g. for making expanded metal making use of rotating 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
    • Y10T29/00—Metal working
    • Y10T29/18—Expanded metal making

Definitions

  • a basementte cutting rolls 23 are'shown for eibcting these cuts throughthe bond sec-- They are provided with iiat sides ⁇ 24k provided'- with properly'spaced countering performance of this step of the process, l
  • s, preferablyA employ cutting rolls 2O 20,' the se- -i ries. of cutters 21 of which are adapted to form thesl'its through the entire Wldth of thesheet. ⁇ v The cutters are notched'at 22 so that they do not Aoperate upon the bond -sections or zones.
  • the next step of the' process consists in forming cuts through vthe bond sections connecting alternate slits at'eachside thereof.
  • paring sheet metal for expanding consisting 11i-first forming alined slits inlongitudinally .separated sections .of the sheet7 and then uniting aliningslits of adjacent sections by- ⁇ cu-tting the separating bonds, alternating the cuts both transversely and lengthwise of the sheet.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shearing Machines (AREA)

Description

A. BENSON. PROCESS 0F CUTTING SHEET METAL.
APPLICATION FILED JAN. 27, 1908. Patented 00L. 20, 1908.
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" A propriate cutting rolls 23 are'shown for eibcting these cuts throughthe bond sec-- They are provided with iiat sides`24k provided'- with properly'spaced countering performance of this step of the process, l
s, preferablyA employ cutting rolls 2O 20,' the se- -i ries. of cutters 21 of which are adapted to form thesl'its through the entire Wldth of thesheet.` v The cutters are notched'at 22 so that they do not Aoperate upon the bond -sections or zones.
The next step of the' process consists in forming cuts through vthe bond sections connecting alternate slits at'eachside thereof.-
" Thus referring to Fig. 5, it will be seen'that all the slits 16 of s'litted sections 7 and 8 are united by cuts through bond section 12; that i the slits 17 of sections 8 and 9 are united in'a 'slits 1 6 of sections 9 and 10 are similarly similar manner through bond section 1 3 that united through bond section 14 and so on I- tions.-
- through the Whole sheet, the alternate4 slits counting from the edgel of thesheet being united by cuts through the alternate bonds.
cutters adapted to act on alternate bonds only. By this manner of slitting- I obtain the benefit in the iirst 'step of the process at tending the use of'closely associated knives operating u on the solid sheet and preventing the di c ulty to which I have referred. After the slits- 16 and 17 have been united as t described, they are of course double their original length with the' Width of the bond v section added, and the strands thusforme'd 'are united by the uncut alternate bondscotions. The fabric produced by the'opening ofthe sheet is Shown'at Fig. 6.
I' claim 1. The improvement in the process of prev 40.
paring sheet metal for expanding, consisting 11i-first forming alined slits inlongitudinally .separated sections .of the sheet7 and then uniting aliningslits of adjacent sections by- `cu-tting the separating bonds, alternating the cuts both transversely and lengthwise of the sheet.
colpiva'- ting sheet metal preparatory to expanding it,
consisting in'rirst` slitting transverse sections or portions of thesheet with uniform alined vslits spaced the. widthdesired for the strand vin the completed article, leaving uncut bond portions between the sections, and then uniting-'the alternate slits o'f adjoining sections-by cutting the bond portions alternatelyboth transversely andl lengthwise of the sheet. g
4. The improvement in the process of slitting sheetA metal preparatory to expanding it,
consisting in iirst' forming a plurality of series .of alined slits of uniform `length and spacedapart -to correspond tothe width of the strands inthe completed article, and
then uniting the alternate slits of adjacent sectionsbycutting through the alternate bond port-ions, these cuts being alternated both' transversely" and lengthwise of the I 5. The herein described (process of preparingsheet metal for eXpan ing, consisting in first cutting the sheet to form sections of narrow parallel strips, the se arating slits between the said strips of dilrentsections being'ccextensive and in alinement, and then cutting the bond portion remaining between the said sections to unite alternatey slits ofadjacent sections, alternating the cuts tr'ansversely and lengthwise, throughout the sheet.
s ANDREWv BENSON.
Witnesses:`
' H; M. MUNDAY,
PEARL' ABRAMS. f
US41269408A 1908-01-27 1908-01-27 Process of cutting sheet metal. Expired - Lifetime US901772A (en)

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US41269408A US901772A (en) 1908-01-27 1908-01-27 Process of cutting sheet metal.

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US41269408A US901772A (en) 1908-01-27 1908-01-27 Process of cutting sheet metal.

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5647257A (en) * 1992-12-22 1997-07-15 Prompac Industries, Inc. Method and process for manufacturing expandable packing material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5647257A (en) * 1992-12-22 1997-07-15 Prompac Industries, Inc. Method and process for manufacturing expandable packing material

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