GB837222A - Improvements in or relating to sewing machines - Google Patents

Improvements in or relating to sewing machines

Info

Publication number
GB837222A
GB837222A GB2539/57A GB253957A GB837222A GB 837222 A GB837222 A GB 837222A GB 2539/57 A GB2539/57 A GB 2539/57A GB 253957 A GB253957 A GB 253957A GB 837222 A GB837222 A GB 837222A
Authority
GB
United Kingdom
Prior art keywords
sleeve
hand wheel
housing
plate
eccentricity
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
GB2539/57A
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.)
Union Special Machine Co
Original Assignee
Union Special 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
Application filed by Union Special Machine Co filed Critical Union Special Machine Co
Publication of GB837222A publication Critical patent/GB837222A/en
Expired legal-status Critical Current

Links

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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C3/00—Shafts; Axles; Cranks; Eccentrics
    • F16C3/04—Crankshafts, eccentric-shafts; Cranks, eccentrics
    • F16C3/22—Cranks; Eccentrics
    • F16C3/28—Adjustable cranks or eccentrics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2340/00—Apparatus for treating textiles

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Ocean & Marine Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)

Abstract

837,222. Eccentrics. UNION SPECIAL MACHINE CO. Jan. 24, 1957 [Jan. 26, 1956], No. 2539/57. Class 122 (1). [Also in Group VII] A variable eccentric for controlling the rate of work feed in a sewing machine comprises an outer sleeve 35 attached by a pin 46 to a plate 41 fast with a rotary shaft 18, an inner sleeve 34, a compression spring 36 interposed between said sleeves for biasing sleeve 35 against a housing 39 fixed by a screw 42 to plate 41, and sleeve 34 towards plate 41, a friction disc 44 being interposed between the latter and sleeve 34, and the eccentricity is varied by altering the relative angular positions of the sleeves. For this purpose a radial extension 55 of sleeve 34 passes through a peripheral slot 39a in housing 39, and a circular band 56, which is rotatable in a circumferential groove 39b formed in housing 39, is secured at its ends by screws 58 to the outer end of extension 55 so as to leave a notch 53 in the latter exposed. Depression of a plunger 66 causes a nose 73 of a bell-crank lever 65, 72 to engage band 56, when rotation of shaft 18 by means of a hand wheel causes nose 73 to enter notch 53 to prevent rotation of sleeve 34. Further turning of the hand wheel produces the required adjustment, the degree of eccentricity being indicated by the appearance of successive numerals, formed on the hand wheel, in a window formed in a flange overlying the hand wheel. Specification 837,221 and U.S.A. Specification 2,718,860 are referred to.
GB2539/57A 1956-01-26 1957-01-24 Improvements in or relating to sewing machines Expired GB837222A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US561406A US2851976A (en) 1956-01-26 1956-01-26 Sewing machines

Publications (1)

Publication Number Publication Date
GB837222A true GB837222A (en) 1960-06-09

Family

ID=24241830

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2539/57A Expired GB837222A (en) 1956-01-26 1957-01-24 Improvements in or relating to sewing machines

Country Status (3)

Country Link
US (1) US2851976A (en)
FR (1) FR1166541A (en)
GB (1) GB837222A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4213410A (en) * 1979-03-09 1980-07-22 The Singer Company Adjustable hook for a sewing machine
IT1151404B (en) * 1982-05-17 1986-12-17 Rockwell Rimoldi Spa ECCENTRIC STITCH REGULATOR ADJUSTABLE IN SEWING MACHINES

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2491449A (en) * 1946-10-17 1949-12-13 Willcox & Gibbs Sewing Machine Stitch-adjusting mechanism for sewing machines
US2718860A (en) * 1950-03-21 1955-09-27 Union Special Machine Co Sewing machines
US2749860A (en) * 1954-11-01 1956-06-12 Union Special Machine Co Adjustable eccentric for sewing machines

Also Published As

Publication number Publication date
FR1166541A (en) 1958-11-12
US2851976A (en) 1958-09-16

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