US121239A - Improvement in paper-cutting machines - Google Patents

Improvement in paper-cutting machines Download PDF

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Publication number
US121239A
US121239A US121239DA US121239A US 121239 A US121239 A US 121239A US 121239D A US121239D A US 121239DA US 121239 A US121239 A US 121239A
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Prior art keywords
paper
improvement
cutting machines
web
knife
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Expired - Lifetime
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
    • B65H35/04—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with transverse cutters or perforators
    • 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
    • Y10T83/4809—With loop former preceding tool

Definitions

  • My invention relates to the paper-cutter known as the straight-knife or continuous-feed cutter that is, a cutter which cuts the paper into sheets from a web of the same while in motion.
  • the objection to the above-named cutters is that they do not cut the sheets of paper square.
  • the two cutting-knives are straight and the revolving knife is set shearing-that is, so set in position that one end begins to out against the ledger or stationary knife some distance in advance of the other.
  • the Web of paper is continually descending between the knives, therefore that portion of the sheet which is last out off must be of the greatest length.
  • my invention which consists of an adjustable attachment to theledgerknife, and which holds the web of paper up at the desired point, and which may be elevated or depressed as the length of the sheet to be out may require,-the sheets may always be cut perfectly square.
  • Figure 1 is an end elevation, showing the end of the machine embodying my invention.
  • Fig. 2 is a plan of the ledger-knife with my invention attached.
  • a A is the frame of the machine.
  • B is the revolving knife.
  • D is the ledger or stationary knife.
  • E E are rollers which draw the web of paper from the roll F and pass it between the knives B and D.
  • F is aroll of paper to be out into sheets.
  • H H His the web of paper.
  • I is a flexible metallic plate, extending nearly or quite the entire length of and attached to the upper portion of the ledger-knife, so that the lower edge may be adjusted so as to draw back or lift up that portion of the web of paper which is last severed with the knives. When the length of the sheet is changed for two inches or more, (either longer or shorter, as the case may be,) the plate I should be elevated or depressed, as the case may require, until the sheet is made to out perfectly square.

Description

FRANK A. FLETCHER.
lmprovmentin 'Pap'er Cutting Machines.
@l j E r 4n puera-umoamrmc m mx/assannrk moon-s.)
UNITED STATES PATENT OFFICE.
IMPROVEMENT IN PAPER-CUTTING MACHINES.
Specification forming part of Letters Patent No. 121,239, dated November 28, 1871.
To all whom it may concern: 4
Be it known that I, FRANK A. FLETCHER, of Newark, in the county of New Castle and State of Delaware, have invented certain Improvements in PapenGutting Machines, of which the following is a specification:
My invention relates to the paper-cutter known as the straight-knife or continuous-feed cutter that is, a cutter which cuts the paper into sheets from a web of the same while in motion. The objection to the above-named cutters is that they do not cut the sheets of paper square. The two cutting-knives are straight and the revolving knife is set shearing-that is, so set in position that one end begins to out against the ledger or stationary knife some distance in advance of the other. The Web of paper is continually descending between the knives, therefore that portion of the sheet which is last out off must be of the greatest length. By my invention, which consists of an adjustable attachment to theledgerknife, and which holds the web of paper up at the desired point, and which may be elevated or depressed as the length of the sheet to be out may require,-the sheets may always be cut perfectly square.
Figure 1 is an end elevation, showing the end of the machine embodying my invention. Fig. 2 is a plan of the ledger-knife with my invention attached.
A A is the frame of the machine. B is the revolving knife. D is the ledger or stationary knife.
. E E are rollers which draw the web of paper from the roll F and pass it between the knives B and D. F is aroll of paper to be out into sheets. H H His the web of paper. I is a flexible metallic plate, extending nearly or quite the entire length of and attached to the upper portion of the ledger-knife, so that the lower edge may be adjusted so as to draw back or lift up that portion of the web of paper which is last severed with the knives. When the length of the sheet is changed for two inches or more, (either longer or shorter, as the case may be,) the plate I should be elevated or depressed, as the case may require, until the sheet is made to out perfectly square.
I claim as my invention The application and use of the flexible metallic plate I, substantially as and for the purpose hereinbefore set forth.
FRANK A. FLETCHER.
Witnesses:
SoLoMoN S. M. CURTIS,
WARREN CURTIS. (1 09)
US121239D Improvement in paper-cutting machines Expired - Lifetime US121239A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2454241A (en) * 1946-07-12 1948-11-16 Western Electric Co Wire-cutting apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2454241A (en) * 1946-07-12 1948-11-16 Western Electric Co Wire-cutting apparatus

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