GB973938A - Improvements in or relating to sewing machines - Google Patents

Improvements in or relating to sewing machines

Info

Publication number
GB973938A
GB973938A GB14681/60A GB1468160A GB973938A GB 973938 A GB973938 A GB 973938A GB 14681/60 A GB14681/60 A GB 14681/60A GB 1468160 A GB1468160 A GB 1468160A GB 973938 A GB973938 A GB 973938A
Authority
GB
United Kingdom
Prior art keywords
gear
shaft
input
shuttle
pivoted
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
GB14681/60A
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.)
Noxet UK Ltd
Original Assignee
British United Shoe Machinery Ltd
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 British United Shoe Machinery Ltd filed Critical British United Shoe Machinery Ltd
Priority to GB14681/60A priority Critical patent/GB973938A/en
Priority to US99912A priority patent/US3062162A/en
Publication of GB973938A publication Critical patent/GB973938A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B15/00—Machines for sewing leather goods
    • D05B15/02—Shoe sewing machines
    • D05B15/04—Shoe sewing machines for lock-stitch work

Landscapes

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

Abstract

973,938. Toothed gearing. BRITISH UNITED SHOE MACHINERY CO. Ltd., T. AKESTELL, and G. F. WARD. April 26, 1961 [April 27, 1960], No. 14681/60. Heading F2Q. [Also in Division D1] In a lockstitch sewing machine the the shuttle is driven by an epicyclic gear arrangement having means arranged to act periodically to modify the speed of the shuttle for facilitating the passage of the loop of needle thread therethrough. As shown, a carrier 20, journalling three planet pinions 18, is rigid with an input or driving shaft 12 (not shown). Pinions 18 mesh with internal teeth on a gear annulus 16 journalled on the input shaft, and also mesh with a sun-gear 22 rigid with the output or shuttle-driving shaft 2. Gear annulus 16 is formed with lugs 26 having notches 26a engaged by projections 28a on respective arms 28 pivoted at 30 to opposite ends of a lever 32 and biased towards each other by a spring 34. Lever 32 is pivoted on a fixed shaft 33 and is rigid with an arm 36 pivoted to a pitman 38 actuated by an eccentric 40 on the input shaft. The arrangement is thereby such that gear annulus 16 oscillates to modify the normal gear ratio of 1 to 3 between the input and output shafts. If rotation of the output shaft is prevented, the projections 28a are forced out of the notches 26a, and the gear annulus 16 rotates with the input shaft. Specifications 392,947, 410,463 and 410,496 are referred to.
GB14681/60A 1960-04-27 1960-04-27 Improvements in or relating to sewing machines Expired GB973938A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB14681/60A GB973938A (en) 1960-04-27 1960-04-27 Improvements in or relating to sewing machines
US99912A US3062162A (en) 1960-04-27 1961-03-31 Shuttle drive for shoe sewing machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB14681/60A GB973938A (en) 1960-04-27 1960-04-27 Improvements in or relating to sewing machines

Publications (1)

Publication Number Publication Date
GB973938A true GB973938A (en) 1964-11-04

Family

ID=10045657

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14681/60A Expired GB973938A (en) 1960-04-27 1960-04-27 Improvements in or relating to sewing machines

Country Status (2)

Country Link
US (1) US3062162A (en)
GB (1) GB973938A (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1247536A (en) * 1916-11-14 1917-11-20 John George Inshaw Planetary gearing for rolling-machines.
US2056670A (en) * 1932-10-11 1936-10-06 United Shoe Machinery Corp Sewing machine
US2392349A (en) * 1944-06-21 1946-01-08 Du Pont Apparatus
US2535774A (en) * 1949-04-15 1950-12-26 Etudes De Machines Speciales Mechanism for converting a uniform motion into a variable motion

Also Published As

Publication number Publication date
US3062162A (en) 1962-11-06

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