US1445992A - Cutting machine - Google Patents

Cutting machine Download PDF

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Publication number
US1445992A
US1445992A US502944A US50294421A US1445992A US 1445992 A US1445992 A US 1445992A US 502944 A US502944 A US 502944A US 50294421 A US50294421 A US 50294421A US 1445992 A US1445992 A US 1445992A
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US
United States
Prior art keywords
sheet
grid
rubber
strips
cut
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
Application number
US502944A
Inventor
James S Cameron
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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.)
Filing date
Publication date
Application filed by Western Electric Co Inc filed Critical Western Electric Co Inc
Priority to US502944A priority Critical patent/US1445992A/en
Application granted granted Critical
Publication of US1445992A publication Critical patent/US1445992A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • 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
    • B26D1/02—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 stationary cutting member
    • B26D1/03—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 stationary cutting member with a plurality of cutting members
    • B26D1/035—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 stationary cutting member with a plurality of cutting members 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
    • Y10T83/00—Cutting
    • Y10T83/283—With means to control or modify temperature of apparatus or work
    • 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
    • Y10T83/283—With means to control or modify temperature of apparatus or work
    • Y10T83/293—Of tool
    • 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
    • Y10T83/647—With means to convey work relative to tool station
    • Y10T83/6584—Cut made parallel to direction of and during work movement
    • 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
    • Y10T83/647—With means to convey work relative to tool station
    • Y10T83/6584—Cut made parallel to direction of and during work movement
    • Y10T83/6592—Interrelated work-conveying and tool-moving means

Definitions

  • This invention relates, in general, to cutting machines and more part1cularly to machines for cutting sheets of material into stri s.
  • e cutting machine hereinafter specifically described is adapted to cut sheets of rubber into strips, although it may be used for other materials having similar properties. It has been found very diificultto cut rubber with edge tools without leaving the edges of the cut jagged and rough, so that when the material is stretched it invariably tears at one of these nicks and is useless for the purpose desired.
  • Fig. 1 shows that portion of the mechanism which provides the motion in the sheet and reels the finished product on spools
  • Fig. 2 is a side view of the machine showing the grid and the winding spools
  • Fig. 3 is a perspective showing one form of grid which may be employed and the method of starting a sheet through the machine
  • Fig. 4 is a perspective showing the grid and its cooperation with the sheet of rubber in greater detail.
  • a .roll of sheet rubber 1 wound on a shaft 2 is supported in a frame having two uprights 3', joined below by' lateral braces 5.
  • the wire 10 is contween' the sides 8and 9 of the rectangular .
  • the width of the strips depends, of course, a
  • the wire 10 is of a resistance material so that when connected with the source of current, it is heated to a suflicient temperature to melt or cutthe sheet'of rubber wound on the shaft 2.
  • the edge 15 of the channel 6 is suitabl rounded and smoothed to act as a bearing surface for the sheet of rubber from the roll 1 as it passes through the grid.
  • the alternate strips 49 and 50 cut from the sheet of rubber pass over rollers 16 and 17 and are wound on suitable spools 18 and 19 supported on shafts 20 and 21 respectively.
  • the alternate strips 49 and 50 are guided to the rollers 16 and 17 spaced at a considerable vertical distance from each other so that the freshly melted edges of the strips are separated to prevent reuniting.
  • Shafts 20 and 21 and t e rollers 16 and 17 are supported on a frame consisting of two uprights 22 and lateral braces 24 and 25.
  • the uprights 3 and 22 are held rigid with'respect to each other by means of braces 23.
  • a bracket 26 is formed by a bar bent and bolted to the upright 22. Bracket 26 and an arm '27 also supported by the upright 22, support a vertical shaft 28 upon which is mounted a friction-drive wheel 29 which is 20 relqicctively, and connected to each other bya chain 36. Rotation in the shaft 28 is provided through a worm gear 37 associating the shaft 28 with the shaft 3h of an electric motor-'39 mounted on the lateral supporting members 24 and 25. A proper regulation of the speed of the rubber sheet through the grid is accomplished by adjusting the hearing point of the friction wheel 29 against the friction wheel 33 by means of the shift ing device 30. The motion in the shaft 2 is retarded to produce a proper tension in the sheet of rubber 1 by means of a weight 40 attached to a strip 41 passing over a wheel 42 mounted on the shaft 2.
  • the sheet is placed over the roller 46 and the grid frame is removed from the channel 6 and placed over the sheet so that the wires 10 register in grooves provided in the roller.
  • the sheet is then drawn by its end for a short distance through the grid and cut as indicated at the line 47. he strips may then be passed through the grid in its position in channel 6 and suitably attached to their respective spools for automatic feeding.
  • a machine for cutting sheets of rubber or similar material into strips which comprises a stationary electrical y heated grid,
  • a machine for cutting sheets of rubber or similar material into strips which comprises an electricall heated grid through which the sheet is a apted to pass, means to receive the strips severed from the sheet and power-driven means cooperating with said means to draw the sheet throu h the grid.
  • A'machine for cutting s eets 0t" rubber or similar material into strips which comprises an electrically heated grid through which the sheet is adapted to pass, means to separate the alternate strips cut from the sheet, a spool for each strip cut from the sheet and means cooperating with the spools to draw the sheet through the grid.
  • a machine for cutting sheets of rubber or similar material into strips which comprises a grid through which the sheet is adapted to pass consisting of a frame and electrically heated wire stretched thereacross, a spool for each of the strip-s cut from the sheet and a motor providedfwith an adjustable friction drive associated with said spools.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Replacement Of Web Rolls (AREA)

Description

Feb. 20, 1923. 1,445,992.
J. S. CAMERON.
' CUTTING MACHINE.
FILED SEPT. 24.1921- 2 SHEETS-SHEET l.
' wa /Mar. J /rre5 5 ("d/776m,
Feb. 20,1923. 1,445,992.
1.. S. CAMERONQ CUTTING MACHINE.
FILED SEPT. 24, 1921- Z SHEETS-SHEET 2.
. To all whom it may concern:
Patented Feb. 20, 1923.
UNITED STATES JAMES S. CAMERON, OF MONTREAL, QUEBEC, CANADA, ASSIGNOR '10 WESTERN ELEC- TRIC OOMPANY, INCORPORATED, OF NEW YOIBK, N; Y., A CORPORATION OF NEW YORK.
\ qu'rzrme momma -Appl1eation filed September 24, 1921. Serial No. 502,944.
Be it known that I, .1 AMES S. C'AMERoN, a subject of the King of Great Britain residing at Montreal, in the Province of Quebec, Dominion of Canada, have invented certain new and useful Improvements in Cutting Machines, of which the following is a full, clear, concise, and exact description.
This invention relates, in general, to cutting machines and more part1cularly to machines for cutting sheets of material into stri s.
e cutting machine hereinafter specifically described is adapted to cut sheets of rubber into strips, although it may be used for other materials having similar properties. It has been found very diificultto cut rubber with edge tools without leaving the edges of the cut jagged and rough, so that when the material is stretched it invariably tears at one of these nicks and is useless for the purpose desired.
It is the object of the invention to provide a machine which will cut sheets of material like rubber into strips of desired width without torn or jagged edges and which shall be inexpensive, simple in construction and re liable in its operation.
' These objects are accomplished mainly by the use of heated wires which are stretched across a suitable frame to form a id and which are electrically heated to t e melting point ofthe material to be cut. The material to be cut is mechanically] fed through this grid and thegstrips cut there from are reeled upon spools.
One form which the invention may assume in practice, is shown-in the accompanying drawings, in which Fig. 1 shows that portion of the mechanism which provides the motion in the sheet and reels the finished product on spools; Fig. 2 is a side view of the machine showing the grid and the winding spools; Fig. 3 is a perspective showing one form of grid which may be employed and the method of starting a sheet through the machine; and Fig. 4 is a perspective showing the grid and its cooperation with the sheet of rubber in greater detail.
- Referring to the drawings, a .roll of sheet rubber 1 wound on a shaft 2 is supported in a frame having two uprights 3', joined below by' lateral braces 5.
Supported between uprights 3, by means of plates 48 is a channel member 6. Be-
upon the distance apart of the parallel sections of the wire 10 and this may be changed as desired by substituting a frame provided with a grld havlng such parallel sections at the desired distances. The wire 10 is contween' the sides 8and 9 of the rectangular .The width of the strips depends, of course, a
nected by the leads 11 and 12 to a suitable source of current (not shown) in circuit wlth a variable resistance 13 for adjusting the heating current and a switch 14 for openmg the circuit. The wire 10 is of a resistance material so that when connected with the source of current, it is heated to a suflicient temperature to melt or cutthe sheet'of rubber wound on the shaft 2. The edge 15 of the channel 6 is suitabl rounded and smoothed to act as a bearing surface for the sheet of rubber from the roll 1 as it passes through the grid.
After passing through the grld, the alternate strips 49 and 50 cut from the sheet of rubber pass over rollers 16 and 17 and are wound on suitable spools 18 and 19 supported on shafts 20 and 21 respectively. The alternate strips 49 and 50 are guided to the rollers 16 and 17 spaced at a considerable vertical distance from each other so that the freshly melted edges of the strips are separated to prevent reuniting. Shafts 20 and 21 and t e rollers 16 and 17 are supported on a frame consisting of two uprights 22 and lateral braces 24 and 25. The uprights 3 and 22 are held rigid with'respect to each other by means of braces 23.
I A bracket 26 is formed by a bar bent and bolted to the upright 22. Bracket 26 and an arm '27 also supported by the upright 22, support a vertical shaft 28 upon which is mounted a friction-drive wheel 29 which is 20 relqicctively, and connected to each other bya chain 36. Rotation in the shaft 28 is provided through a worm gear 37 associating the shaft 28 with the shaft 3h of an electric motor-'39 mounted on the lateral supporting members 24 and 25. A proper regulation of the speed of the rubber sheet through the grid is accomplished by adjusting the hearing point of the friction wheel 29 against the friction wheel 33 by means of the shift ing device 30. The motion in the shaft 2 is retarded to produce a proper tension in the sheet of rubber 1 by means of a weight 40 attached to a strip 41 passing over a wheel 42 mounted on the shaft 2.
To start the sheet of material through the grid the sheet is placed over the roller 46 and the grid frame is removed from the channel 6 and placed over the sheet so that the wires 10 register in grooves provided in the roller. The sheet is then drawn by its end for a short distance through the grid and cut as indicated at the line 47. he strips may then be passed through the grid in its position in channel 6 and suitably attached to their respective spools for automatic feeding.
What is claimed is: r
1. A machine for cutting sheets of rubber or similar material into strips, which comprises a stationary electrical y heated grid,
and means to draw the sheet through the rid.-
h 2. A machine for cutting sheets of rubber or similar material into strips, which comprises an electricall heated grid through which the sheet is a apted to pass, means to receive the strips severed from the sheet and power-driven means cooperating with said means to draw the sheet throu h the grid.
3. A'machine for cutting s eets 0t" rubber or similar material into strips, which comprises an electrically heated grid through which the sheet is adapted to pass, means to separate the alternate strips cut from the sheet, a spool for each strip cut from the sheet and means cooperating with the spools to draw the sheet through the grid.
4. A machine for cutting sheets of rubber or similar material into strips,- which comprises a grid through which the sheet is adapted to pass consisting of a frame and electrically heated wire stretched thereacross, a spool for each of the strip-s cut from the sheet and a motor providedfwith an adjustable friction drive associated with said spools.
In witness whereof, I hereunto subscribe my name this fourteenth day of September, A. D. 1921.
JAMES S. CAMERON
US502944A 1921-09-24 1921-09-24 Cutting machine Expired - Lifetime US1445992A (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2430496A (en) * 1944-04-11 1947-11-11 Celanese Corp Heated cutter for plastics
US2437295A (en) * 1944-06-28 1948-03-09 Celanese Corp Cutting device
US2444327A (en) * 1942-05-20 1948-06-29 William D Horn Preference recorder for programs
US2471310A (en) * 1945-05-22 1949-05-24 Charles George Kenneth Tape severing device
US2535029A (en) * 1946-08-13 1950-12-26 John V Atanasoff Method and apparatus for cutting fusible fabrics
US2588647A (en) * 1948-10-28 1952-03-11 Howe Machinery Company Inc Apparatus for making belts
US2789199A (en) * 1951-11-15 1957-04-16 Johan A Bjorksten Apparatus for making fiber articles
US2894106A (en) * 1956-04-06 1959-07-07 Applic Generale D Electricite Device for hot cutting of woven or knitted materials of synthetic thermo-fusible fibers
US3064111A (en) * 1960-06-27 1962-11-13 Columbia Ribbon & Carbon Plastic cutting device

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2444327A (en) * 1942-05-20 1948-06-29 William D Horn Preference recorder for programs
US2430496A (en) * 1944-04-11 1947-11-11 Celanese Corp Heated cutter for plastics
US2437295A (en) * 1944-06-28 1948-03-09 Celanese Corp Cutting device
US2471310A (en) * 1945-05-22 1949-05-24 Charles George Kenneth Tape severing device
US2535029A (en) * 1946-08-13 1950-12-26 John V Atanasoff Method and apparatus for cutting fusible fabrics
US2588647A (en) * 1948-10-28 1952-03-11 Howe Machinery Company Inc Apparatus for making belts
US2789199A (en) * 1951-11-15 1957-04-16 Johan A Bjorksten Apparatus for making fiber articles
US2894106A (en) * 1956-04-06 1959-07-07 Applic Generale D Electricite Device for hot cutting of woven or knitted materials of synthetic thermo-fusible fibers
US3064111A (en) * 1960-06-27 1962-11-13 Columbia Ribbon & Carbon Plastic cutting device

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