US1342008A - Cutting attachment for cutting-machines - Google Patents

Cutting attachment for cutting-machines Download PDF

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Publication number
US1342008A
US1342008A US26927519A US1342008A US 1342008 A US1342008 A US 1342008A US 26927519 A US26927519 A US 26927519A US 1342008 A US1342008 A US 1342008A
Authority
US
United States
Prior art keywords
cutting
lever
crank
attachment
knife
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
Inventor
Weis John Peter
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.)
METROPOLITAN SEWING MACHINE CO
METROPOLITAN SEWING MACHINE Corp
Original Assignee
METROPOLITAN SEWING MACHINE CO
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
Priority claimed from US867005A external-priority patent/US1348526A/en
Priority to US9435416 priority Critical patent/US1348527A/en
Priority to US9435516 priority patent/US1352333A/en
Priority to US26927319 priority patent/US1419087A/en
Priority to US26927919 priority patent/US1419088A/en
Priority to US26927519 priority patent/US1342008A/en
Application filed by METROPOLITAN SEWING MACHINE CO filed Critical METROPOLITAN SEWING MACHINE CO
Priority to US26927619 priority patent/US1439211A/en
Priority to US26927719 priority patent/US1450531A/en
Publication of US1342008A publication Critical patent/US1342008A/en
Application granted granted Critical
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • D06H7/16—Apparatus or processes for cutting, or otherwise severing, specially adapted for the cutting, or otherwise severing, of textile materials specially adapted for cutting lace or embroidery
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B1/00—General types of sewing apparatus or machines without mechanism for lateral movement of the needle or the work or both
    • D05B1/08—General types of sewing apparatus or machines without mechanism for lateral movement of the needle or the work or both for making multi-thread seams
    • D05B1/18—Seams for protecting or securing edges
    • D05B1/20—Overedge seams
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B25/00—Sewing units consisting of combinations of several sewing machines
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B29/00—Pressers; Presser feet
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B37/00—Devices incorporated in sewing machines for slitting, grooving, or cutting
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B65/00—Devices for severing the needle or lower thread
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B69/00—Driving-gear; Control devices
    • D05B69/30—Details
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B71/00—Lubricating or cooling devices
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B57/00—Loop takers, e.g. loopers
    • D05B57/02—Loop takers, e.g. loopers for chain-stitch sewing machines, e.g. oscillating
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B73/00—Casings
    • D05B73/04—Lower casings
    • D05B73/12—Slides; Needle plates
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05D—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES D05B AND D05C, RELATING TO SEWING, EMBROIDERING AND TUFTING
    • D05D2205/00—Interface between the operator and the machine
    • D05D2205/32—Safety devices; Security devices
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05D—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES D05B AND D05C, RELATING TO SEWING, EMBROIDERING AND TUFTING
    • D05D2207/00—Use of special elements
    • D05D2207/02—Pneumatic or hydraulic devices
    • D05D2207/04—Suction or blowing devices
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05D—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES D05B AND D05C, RELATING TO SEWING, EMBROIDERING AND TUFTING
    • D05D2207/00—Use of special elements
    • D05D2207/05—Magnetic devices
    • D05D2207/06—Permanent magnets
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05D—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES D05B AND D05C, RELATING TO SEWING, EMBROIDERING AND TUFTING
    • D05D2305/00—Operations on the work before or after sewing
    • D05D2305/08—Cutting the workpiece
    • D05D2305/12—Cutting the workpiece transversally
    • 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
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8874—Uniplanar compound motion
    • Y10T83/8877—With gyratory drive

Definitions

  • the object of this invention is to produce a high-speed fabric-cutting mechanism.
  • the accompanying drawing forming a part hereof illustrates in side elevation the best form of my new attachment now known to me. It comprises a bracket 1 having a recessed wall 2 for engagement with a suitable support for combinative operation with other instrumentalities not shown, and a clamp-screw 3 as a means of detachably securing the bracket to a support therefor.
  • 4 is a bell-crank lever pivoted at 5 to a side of the bracket; 6 is a link one end of which is pivotally connected at 7 with the upper end of the bell-crank lever. The other end of the link is pivotally connected to an upstanding vibrating knife 8 at 9, the knife having a cutting point and below the point a curved edge at 10, above the pivotal connection 9.
  • the lower end of the knife is pivotally connected at 11 to one end of a lever 12 which midway between its ends is pivoted at 13 to an end of a supporting rod 14.
  • the other end of lever 12 is pivoted at 15 to an end of a pitman 16, the other end of which is connected at 17 to one of the two crank pins of a crank shaft 18.
  • the other end of the bell crank lever 4 is pivotally connected at 19 to an end of a pitman 20 the other end of which is pivoted at 21 to the other crank pin of crank shaft 18 which has a fixed drive wheel 22 for application of power to rotate the crank shaft.
  • the knife By lowering the supporting rod, the knife is bodily lowered to bring its piercing and cutting surfaces into various working levels or to bring them wholly out of the path of the goods.
  • the described cutter works through an opening 23 in the work plate 24 and in action cooperates with a stationary ledger blade 25.
  • the supporting rod 14 is slidable in a hole through a stationary guide bracket 26, and when it is lowered the end of the lever 12 to which the shank of the movable knife 8 is pivoted at 11 is lowered, thereby lowering the point of the knife to an extent dependent on the extent to which the supporting rod is lowered.
  • the ledger blade is carried by a needle guard 27 which is fixed to the work or throat plate.
  • My invention is an attachment which in the form shown is wholly independent of any goodsfeeding mechanism.
  • a work-plate slotted for movement therethrough of an endwise and edgewise vibratable cutter blade such cutter blade; at revoluble crank shaft; a bell-crank lever; a link pivoted to the cutter blade and also pivoted to the bell-crank lever; a pitman connecting the crank shaft and bell-crank lever; a rod-supported lever pivoted to the cutter blade and also pivoted'to another pitman connected with the crank shaft; such other Patented June 1, 1920 pitman; and a movable supporting rod to which said rod-supported lever is pivotally connected; the cutting movements of the cutter blade being effected by the rotation of the crank when the supporting rod is positioned to move the rod-supported lever to pass the cutting edgeof the cutter blade into cutting position relatively to the slotted Work plate, and the cutting movements of the cutter blade being arrested when the 10 supporting rod is positioned to move the rod-supported lever to Withdraw the cutting edge of the cutter blade from cutting-position relatively to the slotted Work plate.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
  • Treatment Of Fiber Materials (AREA)

Description

J. P. WEIS.
CUTIIZNYG ATTACHMENT FOR CUTTING MACHINES. APPLICATION FILED JAN.2, 1919.
1,342,008. PdtentedJuneL1920.
. O' t 2- j g 4 1a in. I 5 F 11 wue nfo v JohnPhis. %1 641014421 UNITED sTArEs PATENT OFFICE.
JOHN PETER wEIs, 0E NYAGK,-NEW YoEK, AssIGN'oE or ONE-HALF TO METRO- POLITAN SEWING MACHINE CORPORATION, or DOVER, DELAWARE, A 0031 0 RATION OF DELAWARE. 1
CUTTING ATTACHMENT FOR CUTTING-MACHINES.
To all whom it may concern:
Be it known that I, J OHN PETER 151s, a citizen of the United States, residing at Nyack, in the county of Rockland and State of New York, have invented certain new and useful Improvements in Cutting Attachments for Cutting-Machines, of which the following is a specification.
The object of this invention is to produce a high-speed fabric-cutting mechanism. This application is a division of my pending application Serial No. 867,005, filed October 16, 1914.
The accompanying drawing forming a part hereof illustrates in side elevation the best form of my new attachment now known to me. It comprises a bracket 1 having a recessed wall 2 for engagement with a suitable support for combinative operation with other instrumentalities not shown, and a clamp-screw 3 as a means of detachably securing the bracket to a support therefor. 4 is a bell-crank lever pivoted at 5 to a side of the bracket; 6 is a link one end of which is pivotally connected at 7 with the upper end of the bell-crank lever. The other end of the link is pivotally connected to an upstanding vibrating knife 8 at 9, the knife having a cutting point and below the point a curved edge at 10, above the pivotal connection 9. The lower end of the knife is pivotally connected at 11 to one end of a lever 12 which midway between its ends is pivoted at 13 to an end of a supporting rod 14. The other end of lever 12 is pivoted at 15 to an end of a pitman 16, the other end of which is connected at 17 to one of the two crank pins of a crank shaft 18. The other end of the bell crank lever 4 is pivotally connected at 19 to an end of a pitman 20 the other end of which is pivoted at 21 to the other crank pin of crank shaft 18 which has a fixed drive wheel 22 for application of power to rotate the crank shaft.
When the crank-shaft is rotated, the pitmen 16 and 20 are rapidly reciprocated in alternation one with the other, giving to the free cutting point and edge of the knife, through the rocking movement of the bellcrank lever, an edgewise reciprocation; and, through the vibration of the lever 12 and the connection of the link 6 with the knife and bell-crank lever, a vertical reciprocation.
Specification of Letters Patent.
Divided and this application filed January These combined movements of the point and adjacent cutting edge of the knife are successive but almost simultaneous at high speed, and result in a so-called jig-knife movement that has proved to be durable and effective in the cutting of fabric at high speed, the point and cutting edge moving in an approximately elliptical path. It willbe seen that the knife is readily removable from its actuating devices, for sharpening or substitution.
By lowering the supporting rod, the knife is bodily lowered to bring its piercing and cutting surfaces into various working levels or to bring them wholly out of the path of the goods. In underclothing work it is sometimes necessary to cut the two walls of a flattened tube, sometimes necessary to cut through only one wall thereof, and at other times necessary not to cut through either wall. The described cutter works through an opening 23 in the work plate 24 and in action cooperates with a stationary ledger blade 25. The supporting rod 14 is slidable in a hole through a stationary guide bracket 26, and when it is lowered the end of the lever 12 to which the shank of the movable knife 8 is pivoted at 11 is lowered, thereby lowering the point of the knife to an extent dependent on the extent to which the supporting rod is lowered. The ledger blade is carried by a needle guard 27 which is fixed to the work or throat plate.
I am aware that a work plate slotted for movement therethrough of a vibrating cutter blade and such a cutter blade in cooperation with a cutter-blade-actuating and goods-feeding mechanism, are old. My invention is an attachment which in the form shown is wholly independent of any goodsfeeding mechanism.
What I claim is,
In a cutting attachment, the combination of a work-plate slotted for movement therethrough of an endwise and edgewise vibratable cutter blade; such cutter blade; at revoluble crank shaft; a bell-crank lever; a link pivoted to the cutter blade and also pivoted to the bell-crank lever; a pitman connecting the crank shaft and bell-crank lever; a rod-supported lever pivoted to the cutter blade and also pivoted'to another pitman connected with the crank shaft; such other Patented June 1, 1920 pitman; and a movable supporting rod to which said rod-supported lever is pivotally connected; the cutting movements of the cutter blade being effected by the rotation of the crank when the supporting rod is positioned to move the rod-supported lever to pass the cutting edgeof the cutter blade into cutting position relatively to the slotted Work plate, and the cutting movements of the cutter blade being arrested when the 10 supporting rod is positioned to move the rod-supported lever to Withdraw the cutting edge of the cutter blade from cutting-position relatively to the slotted Work plate.
In testimony whereof I have hereunto set 15 my hand this 27th day of December, 1918.
JOHN PETER WEIS.
US26927519 1914-10-16 1919-01-02 Cutting attachment for cutting-machines Expired - Lifetime US1342008A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US9435516 US1352333A (en) 1914-10-16 1916-04-29 Stop-motion
US9435416 US1348527A (en) 1914-10-16 1916-04-29 Lubricating system and sewing-machine construction
US26927919 US1419088A (en) 1914-10-16 1919-01-02 Overstitch mechanism
US26927519 US1342008A (en) 1914-10-16 1919-01-02 Cutting attachment for cutting-machines
US26927319 US1419087A (en) 1914-10-16 1919-01-02 Work-holding-foot mechanism
US26927619 US1439211A (en) 1914-10-16 1919-01-02 Sewing machine
US26927719 US1450531A (en) 1914-10-16 1919-01-02 Thread-breaking mechanism

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
US867005A US1348526A (en) 1914-10-16 1914-10-16 Sewing-machine and cutting mechanism therefor
US9435516 US1352333A (en) 1914-10-16 1916-04-29 Stop-motion
US9435416 US1348527A (en) 1914-10-16 1916-04-29 Lubricating system and sewing-machine construction
US26927919 US1419088A (en) 1914-10-16 1919-01-02 Overstitch mechanism
US26927519 US1342008A (en) 1914-10-16 1919-01-02 Cutting attachment for cutting-machines
US26927319 US1419087A (en) 1914-10-16 1919-01-02 Work-holding-foot mechanism
US26927619 US1439211A (en) 1914-10-16 1919-01-02 Sewing machine
US26927719 US1450531A (en) 1914-10-16 1919-01-02 Thread-breaking mechanism

Publications (1)

Publication Number Publication Date
US1342008A true US1342008A (en) 1920-06-01

Family

ID=27574695

Family Applications (7)

Application Number Title Priority Date Filing Date
US9435416 Expired - Lifetime US1348527A (en) 1914-10-16 1916-04-29 Lubricating system and sewing-machine construction
US9435516 Expired - Lifetime US1352333A (en) 1914-10-16 1916-04-29 Stop-motion
US26927919 Expired - Lifetime US1419088A (en) 1914-10-16 1919-01-02 Overstitch mechanism
US26927519 Expired - Lifetime US1342008A (en) 1914-10-16 1919-01-02 Cutting attachment for cutting-machines
US26927619 Expired - Lifetime US1439211A (en) 1914-10-16 1919-01-02 Sewing machine
US26927719 Expired - Lifetime US1450531A (en) 1914-10-16 1919-01-02 Thread-breaking mechanism
US26927319 Expired - Lifetime US1419087A (en) 1914-10-16 1919-01-02 Work-holding-foot mechanism

Family Applications Before (3)

Application Number Title Priority Date Filing Date
US9435416 Expired - Lifetime US1348527A (en) 1914-10-16 1916-04-29 Lubricating system and sewing-machine construction
US9435516 Expired - Lifetime US1352333A (en) 1914-10-16 1916-04-29 Stop-motion
US26927919 Expired - Lifetime US1419088A (en) 1914-10-16 1919-01-02 Overstitch mechanism

Family Applications After (3)

Application Number Title Priority Date Filing Date
US26927619 Expired - Lifetime US1439211A (en) 1914-10-16 1919-01-02 Sewing machine
US26927719 Expired - Lifetime US1450531A (en) 1914-10-16 1919-01-02 Thread-breaking mechanism
US26927319 Expired - Lifetime US1419087A (en) 1914-10-16 1919-01-02 Work-holding-foot mechanism

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US (7) US1348527A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3008437A (en) * 1958-05-26 1961-11-14 Singer Mfg Co Thread-chain cutter for sewing machines
US3264919A (en) * 1964-08-31 1966-08-09 Gustav J Pawelka Snipping device
CN106192241A (en) * 2015-05-27 2016-12-07 Juki株式会社 The looper threader of ring seam sewing machine

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2684652A (en) * 1950-08-02 1954-07-27 Union Special Machine Co Lubrication system for sewing machines
US4401046A (en) * 1981-08-04 1983-08-30 Bray Murel B Pneumatic thread undercutter
ATE68535T1 (en) * 1987-05-22 1991-11-15 Stutznaecker Emil Naehmasch SEWING MACHINE WITH A THREAD TRIMMER FOR THE UPPER THREAD.
CN112176555B (en) * 2020-10-26 2021-10-01 温州超能缝纫设备有限公司 Thread cutting mechanism for upper thread of sewing machine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3008437A (en) * 1958-05-26 1961-11-14 Singer Mfg Co Thread-chain cutter for sewing machines
US3264919A (en) * 1964-08-31 1966-08-09 Gustav J Pawelka Snipping device
CN106192241A (en) * 2015-05-27 2016-12-07 Juki株式会社 The looper threader of ring seam sewing machine
CN106192241B (en) * 2015-05-27 2021-02-05 Juki株式会社 Looper threading device of circular seam sewing machine

Also Published As

Publication number Publication date
US1450531A (en) 1923-04-03
US1419088A (en) 1922-06-06
US1348527A (en) 1920-08-03
US1439211A (en) 1922-12-19
US1352333A (en) 1920-09-07
US1419087A (en) 1922-06-06

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