GB848503A - Improvements in the feeding mechanism of sewing machines - Google Patents

Improvements in the feeding mechanism of sewing machines

Info

Publication number
GB848503A
GB848503A GB3391/58A GB339158A GB848503A GB 848503 A GB848503 A GB 848503A GB 3391/58 A GB3391/58 A GB 3391/58A GB 339158 A GB339158 A GB 339158A GB 848503 A GB848503 A GB 848503A
Authority
GB
United Kingdom
Prior art keywords
bar
shaft
lever
pivoted
feed
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
Application number
GB3391/58A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB3391/58A priority Critical patent/GB848503A/en
Priority to US787540A priority patent/US2996024A/en
Priority to FR1213392D priority patent/FR1213392A/en
Priority to DEL32357A priority patent/DE1103116B/en
Priority to CH6903159A priority patent/CH368694A/en
Priority to BE575402A priority patent/BE575402A/en
Publication of GB848503A publication Critical patent/GB848503A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B27/00—Work-feeding means
    • D05B27/02—Work-feeding means with feed dogs having horizontal and vertical movements
    • 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
    • Y10T74/00—Machine element or mechanism
    • Y10T74/21—Elements
    • Y10T74/2173—Cranks and wrist pins
    • Y10T74/2179—Adjustable

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)

Abstract

848,503. Sewing machines. LESLIE, I. A. Jan. 5, 1959 [Feb. 3, 1958], No.3391/58. Class 112 A sewing machine work feed comprises a cam member mounted on a hollow rotary driving shaft for imparting vertical movement to a feed member, a lever pivoted within said shaft and having an end projecting from and end of said shaft, means for adjusting the angular position of said lever to vary the eccentricity of said projecting end in relation to the axis of said shaft, and means for transmitting the throw of said projecting end to said feed member for imparting horizontal movement thereto. A vertical feed dog 4 is carried at one end of a flexible spring bar 3 pivoted at its other end, at 2, to a fixed frame 1. A hollow rotary shaft 15 carries at one end a cam 14 which engages a flange 12 on bar 3 for imparting feed lift movements thereto. A lever 17 is pivoted at one end, at 18, within shaft 15, and the other end 16 of lever 17 projects beyond shaft 15 to engage in a vertical slot 13 formed in a lug 11 on bar 3. An intermediate inclined portion 19 on lever 17 is engaged by opposed fingers 20 which project inwardly through slots 22 in shaft 15 from a sleeve 21 slidable on the latter. A rod 25, slidable in frame 1, carries a yoke 24 engaged in a groove 23 in sleeve 21 for moving the latter to vary the position of end 16 relative to the axis of shaft 15. whereby forward or reverse feed advance movements of varied degree may be imparted to bar 3. In a modification lever 17 is pivoted intermediate its ends, and the inclined portion 19 is located at one end thereof. In further modifications bar 3 is dispensed with and the feed dog 4 is mounted to slide in the vertical direction. As shown in Fig. 7, the feed dog is carried by a horizontal bar 38 pivoted at 40 to the upper end of a vertical bar 41 pivoted at its lower end, at 42, to a crank 43. Cam 14 engages bar 38, and end 16 engages a slot provided in a plate 39 on bar 38. Alternatively, the plate 39 may be dispensed with and end 16 coupled by a bar 44 to bar 41. By turning crank 43 the feed dog may be lowered below the work plate for darning.
GB3391/58A 1958-02-03 1958-02-03 Improvements in the feeding mechanism of sewing machines Expired GB848503A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
GB3391/58A GB848503A (en) 1958-02-03 1958-02-03 Improvements in the feeding mechanism of sewing machines
US787540A US2996024A (en) 1958-02-03 1959-01-19 Feeding mechanism of sewing machines
FR1213392D FR1213392A (en) 1958-02-03 1959-01-22 Fabric feed dog mechanism for sewing machines
DEL32357A DE1103116B (en) 1958-02-03 1959-01-31 Sewing machine with square fabric pusher
CH6903159A CH368694A (en) 1958-02-03 1959-02-02 Work piece feed device on a sewing machine
BE575402A BE575402A (en) 1958-02-03 1959-02-05 Data processing scheme

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3391/58A GB848503A (en) 1958-02-03 1958-02-03 Improvements in the feeding mechanism of sewing machines

Publications (1)

Publication Number Publication Date
GB848503A true GB848503A (en) 1960-09-21

Family

ID=9757457

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3391/58A Expired GB848503A (en) 1958-02-03 1958-02-03 Improvements in the feeding mechanism of sewing machines

Country Status (6)

Country Link
US (1) US2996024A (en)
BE (1) BE575402A (en)
CH (1) CH368694A (en)
DE (1) DE1103116B (en)
FR (1) FR1213392A (en)
GB (1) GB848503A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2640174C2 (en) * 1976-09-07 1984-05-10 Dorina Nähmaschinen GmbH, 7500 Karlsruhe sewing machine
SE454894B (en) * 1986-03-11 1988-06-06 Husqvarna Ab DEVICE OF FABRIC FORMATS IN A SEWING MACHINE
DE4342682C1 (en) * 1993-12-15 1995-01-12 Union Special Gmbh Sewing machine with a bottom-transport sewing-material feed device

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US811426A (en) * 1905-05-15 1906-01-30 Arthur C Moulton Adjustable crank-disk.
DE242851C (en) * 1911-02-03
US1119272A (en) * 1914-04-17 1914-12-01 Edward Hilker Sewing-machine.
US1321086A (en) * 1916-10-03 1919-11-04 Hugo Centervall Variable-stroke pump.
US1387145A (en) * 1919-06-17 1921-08-09 Flanagan James Alexander Feeding mechanism for sewing-machines
DE381548C (en) * 1921-06-30 1923-09-21 James Alexander Flanagan Knife slide drive for sewing machines
DE368862C (en) * 1921-07-20
DE495836C (en) * 1927-11-13 1930-04-11 Union Special Maschinenfab Knife slide drive for sewing machines
US1818304A (en) * 1929-09-26 1931-08-11 La Rue B Chevalier Wrist pin
BE504038A (en) * 1948-12-20
DE945060C (en) * 1951-10-04 1956-06-28 Alfred Tietke Table sewing machine
US2725023A (en) * 1952-12-23 1955-11-29 White Sewing Machine Corp Sewing machine

Also Published As

Publication number Publication date
US2996024A (en) 1961-08-15
BE575402A (en) 1959-08-05
DE1103116B (en) 1961-03-23
CH368694A (en) 1963-04-15
FR1213392A (en) 1960-03-31

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