US2723635A - Stitch-length indicators for sewing machines - Google Patents

Stitch-length indicators for sewing machines Download PDF

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Publication number
US2723635A
US2723635A US436775A US43677554A US2723635A US 2723635 A US2723635 A US 2723635A US 436775 A US436775 A US 436775A US 43677554 A US43677554 A US 43677554A US 2723635 A US2723635 A US 2723635A
Authority
US
United States
Prior art keywords
stitch
block
lever
frame
slot
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
US436775A
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English (en)
Inventor
Anthony J Matuzas
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.)
Singer Co
Original Assignee
Singer 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 to BE538934D priority Critical patent/BE538934A/xx
Application filed by Singer Co filed Critical Singer Co
Priority to US436775A priority patent/US2723635A/en
Priority to GB16074/55A priority patent/GB772701A/en
Priority to DES17189U priority patent/DE1751489U/de
Priority to FR1125897D priority patent/FR1125897A/fr
Priority to DES44294A priority patent/DE959509C/de
Priority to CH335928D priority patent/CH335928A/de
Application granted granted Critical
Publication of US2723635A publication Critical patent/US2723635A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B27/00—Work-feeding means
    • D05B27/22—Work-feeding means with means for setting length of stitch
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B73/00—Casings
    • D05B73/005—Doors or covers for accessing inner parts of the machine; Security devices therefor

Definitions

  • the present invention relates to sewing machines and has for a primary object to facilitate manual adjustment of the feeding mechanisms, which object has been herein accomplished by the provision of an indicator that will make more readily ascertainable the specific stitch-length setting thereof.
  • Fig. 1 is a fragmentary front elevation view of a standard end of a sewing machine in which the present invention has been incorporated.
  • Fig. 2 is a vertical section view transversely of the standard of the sewing machine illustrated in Fig. 1.
  • Fig. 3 is a section view taken substantially on the line 3-3 of Fig. 1.
  • Fig. 4 is a section view taken substantially on the line 4-4 of Fig. 2.
  • a sewing machine having a frame comprising a bed 1, a standard 2 and a bracket-arm 3.
  • the illustrated machine includes a stitching mechanism and a feeding mechanism, which may be of any conventional design, for example, as illustrated in the U. S. Patent of Peets, No. 2,617,375, and the patent of Palme et al., No. 2,682,242. Reference is made to these disclosures for a more complete description of the machine and particularly the feeding mechanism which is herein described only insofar as is necessary to obtain a full understanding of the present invention.
  • a mainshaft 4 that extends through the frame in the usual fashion and has mounted upon the exposed end a handwheel 5.
  • an eccentric 7 Secured on the shaft 4 by a set-screw 6 is an eccentric 7 having a pair of eccentric surfaces 8 and 9.
  • Embracing the eccentric surface 8 is the strap-like upper end of a feed-lift actuating pitman 10 arranged vertically in the standard 2, which pitman is adapted to impart feedlift movements to a lower four-motion feeding mechanism, such as set forth in the above-noted disclosures.
  • a feed-advance actuating pitman 11 also arranged vertically in the standard 2 and having a fork 12 formed upon the upper end thereof, which fork embraces the eccentric surface 9.
  • a spring washer 18 is disposed between the head 19 of the pivot-screw 15 and the adjacent face of the wall 14 to generate a friction resistance to pivotal movement of the block 13.
  • a channel 20 is formed in the block 13 and disposed within this channel is a slide 21 that is loosely mounted upon the smooth end portion 22 of a stud 23 that also includes a threaded portion 24 threaded through the pitman 11.
  • the pitman 11 is oscillated by the eccentric 7, it will be reciprocated longitudinally by cooperation of the slide 21 with the channel 20.
  • the amount of reciprocation imparted to the pitman 11 and thus the stitch length is determined by the angular setting of the block 13 and thus the channel 20.
  • a lever 25 having threads substantially throughout its length and threaded into a bore 26 in the block.
  • the lever 25 extends through a slot 27 formed in the front face of the standard 2.
  • the slot 27 is closed by a plate 28 secured to the standard 2 by screws 29.
  • the plate 28 has formed therein a slot 30 through which the lever 25 extends and has suitable indicia thereon, as seen in Fig. l, to indicate the setting of the lever 25 and thus the stitch-length setting.
  • a stopnut 31 is threaded onto the end of the lever 25, which stop-nut cooperates with the side-walls of the slot 30 to limit the adjustment of the lever 25 in the usual manner.
  • an indicator which comprises a rod 32 projecting from the block 13 generally in a direction parallel to the lever 25.
  • a sleeve 33 telescopically receives the rod 32 and has formed upon the outer end thereof a cap 34 having an axially arranged projection 35 that extends through a slot 36 in the plate 28 parallel to the slot 30.
  • the projection 35 is of substantially reduced diameter and by its size Will serve to clearly indicate the stitchlength setting.
  • a spiral spring 37 surrounds the sleeve 33 and rod 32, which spring bears at one end against the block 13 and at the other end against the shoulder at the cap 34 whereby the sleeve 33 is urged outwardly of the rod 32 and thus the cap is resiliently maintained in contact with the inner face of the plate 28 with the projection 35 extending through the slot 36. Because of the spring biased telescopic arrangement of the rod 32 and sleeve 33, the cap 34 will remain in contact with the inner face of the plate 28 as the block 13 is pivoted by the lever 25, and the projection 35 will remain in the slot 36.
  • the indicia on the plate 28 which indicates the feed-advance or stitch length setting in stitches per inch is related to the projection 35 whereby the projection will serve as an indicator or pointer.
  • the projection 35 will be painted a color contrasting to the color of the plate 28, for example, the projection may be red and the plate black.
  • feed-advancezmech-anism including afeedsadvance adjust:
  • member pivoted. to said frame,- the-pivotal. 11307161 merit pfsaid membenefieeting' an. adjustment of said Iced-- advance; mechanism to vary the feed-stroke, an opening in.-rsaid..frame--adjacent said member; a plate for closing;
  • said opening said platehaving-two parallel-arranged slots, means, for pivoting-1 saidmember comprisingrav lever, ex,-
  • said. member comprising. a lever extending. througha slotin said frame, andmeans for. indicating.
  • said lever comprising. an; element telescopis cally carried; by said member; aprojection carried by said element and. extending into; a slotvin said frame; indicia carried by said .frameand cooperating. with said projection to indicate the setting of. said feed-advance mechanism, and meansfor-maintainingsaid element in engagementwith, the inner surface of saidframe and with thepmjection maintained in said slot; saidmeans comprising resilient means for biasing said element outwardly of said member and means for limiting the outward movement thereof.
  • feed-advance mechanism comprising a feed eccentric journaled in said frame, a pitman having a fork embracing said eccentric, a slide carried by said pitman, a block pivoted to said frame on an axis parallel to the axis of said eccentric and having a channel receiving said block, said frame having an opening therein adjacent'saidblock, a plate for closing said opening, said plate having twoparallel-arranged slots, means for pivotinggsaidnblock comprising a lever extending through a first one of'said slots, and means for indicating the setting of; said.
  • lever comprising: 3.119.816: ment telescopically carried by'said block; aprojection carried by said element and extending into-the--other of said slots, and means for, maintaining said element in engagement with the inner surface of said plate comprising resiiient meansforbiasing saicl'element outwardly of said block and means for limiting the outward movement thereof.
  • said-second elementontwardlyof said first .eiement, ayprojection; carried bysaid' second Clea ment, said. frame:having-;az second slot arrangedvparallel. to said first-mentioned, slot to'receive;saidzprojectiomand' to provide for movement of the-same upon. pivotal mover. rnent'of-said block.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
US436775A 1954-06-15 1954-06-15 Stitch-length indicators for sewing machines Expired - Lifetime US2723635A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
BE538934D BE538934A (enrdf_load_stackoverflow) 1954-06-15
US436775A US2723635A (en) 1954-06-15 1954-06-15 Stitch-length indicators for sewing machines
GB16074/55A GB772701A (en) 1954-06-15 1955-06-03 Stitch-length indicator for a sewing machine
DES17189U DE1751489U (de) 1954-06-15 1955-06-10 Stichlaengenanzeiger fuer eine naehmaschine.
FR1125897D FR1125897A (fr) 1954-06-15 1955-06-10 Indicateur de la longueur des points pour machine à coudre
DES44294A DE959509C (de) 1954-06-15 1955-06-11 Stichlaengenanzeiger fuer eine Naehmaschine
CH335928D CH335928A (de) 1954-06-15 1955-06-14 Stichlängenanzeiger an einer Nähmaschine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US436775A US2723635A (en) 1954-06-15 1954-06-15 Stitch-length indicators for sewing machines

Publications (1)

Publication Number Publication Date
US2723635A true US2723635A (en) 1955-11-15

Family

ID=23733785

Family Applications (1)

Application Number Title Priority Date Filing Date
US436775A Expired - Lifetime US2723635A (en) 1954-06-15 1954-06-15 Stitch-length indicators for sewing machines

Country Status (6)

Country Link
US (1) US2723635A (enrdf_load_stackoverflow)
BE (1) BE538934A (enrdf_load_stackoverflow)
CH (1) CH335928A (enrdf_load_stackoverflow)
DE (2) DE1751489U (enrdf_load_stackoverflow)
FR (1) FR1125897A (enrdf_load_stackoverflow)
GB (1) GB772701A (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3036535A (en) * 1959-07-28 1962-05-29 Singer Mfg Co Sewing machine work feed adjusting device
US4312286A (en) * 1979-05-11 1982-01-26 Gerard Biotteau Sewing machine adapted to stitch on a curved path
US4716259A (en) * 1985-02-01 1987-12-29 Canon Kabushiki Kaisha Both-side flexible printed circuit board

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1397071A (en) * 1917-11-05 1921-11-15 Singer Mfg Co Feeding mechanism for sewing-machines
US2258487A (en) * 1939-09-13 1941-10-07 White Sewing Machine Corp Stitch regulating mechanism for sewing machines
US2430207A (en) * 1945-05-21 1947-11-04 Nat Sewing Machine Co Sewing machine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1397071A (en) * 1917-11-05 1921-11-15 Singer Mfg Co Feeding mechanism for sewing-machines
US2258487A (en) * 1939-09-13 1941-10-07 White Sewing Machine Corp Stitch regulating mechanism for sewing machines
US2430207A (en) * 1945-05-21 1947-11-04 Nat Sewing Machine Co Sewing machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3036535A (en) * 1959-07-28 1962-05-29 Singer Mfg Co Sewing machine work feed adjusting device
US4312286A (en) * 1979-05-11 1982-01-26 Gerard Biotteau Sewing machine adapted to stitch on a curved path
US4716259A (en) * 1985-02-01 1987-12-29 Canon Kabushiki Kaisha Both-side flexible printed circuit board

Also Published As

Publication number Publication date
DE959509C (de) 1957-03-07
BE538934A (enrdf_load_stackoverflow)
CH335928A (de) 1959-01-31
GB772701A (en) 1957-04-17
DE1751489U (de) 1957-08-29
FR1125897A (fr) 1956-11-09

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