GB806265A - Improvements in or relating to sewing machines - Google Patents

Improvements in or relating to sewing machines

Info

Publication number
GB806265A
GB806265A GB32110/55A GB3211055A GB806265A GB 806265 A GB806265 A GB 806265A GB 32110/55 A GB32110/55 A GB 32110/55A GB 3211055 A GB3211055 A GB 3211055A GB 806265 A GB806265 A GB 806265A
Authority
GB
United Kingdom
Prior art keywords
thread
bobbin
case
stitch
shuttle
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
GB32110/55A
Inventor
Thomas Aubrey Kestell
Raymond Snape
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 GB32110/55A priority Critical patent/GB806265A/en
Priority to US615666A priority patent/US2888892A/en
Priority to DEU4197A priority patent/DE1046458B/en
Priority to FR1165113D priority patent/FR1165113A/en
Publication of GB806265A publication Critical patent/GB806265A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B57/00—Loop takers, e.g. loopers
    • D05B57/08—Loop takers, e.g. loopers for lock-stitch sewing machines
    • D05B57/10—Shuttles
    • D05B57/14—Shuttles with rotary hooks
    • 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

806,265. Sewing machines. BRITISH UNITED SHOE MACHINERY CO. Ltd., KESTELL, T. A., and SNAPS, R. Nov. 8, 1956 [Nov. 10, 1955], No. 3110/55. Class 112 Lock stitching by barbed needles; shuttles. In a curved hooked needle lockstitch sewing machine having a bobbin thread case housed within a rotary shuttle arranged to pass loops of needle thread about the bobbin thread case, the shuttle has means to move a yieldable member on the thread case to cause an amount of thread to be drawn off the bobbin. The invention is described with reference to a lockstitch sewing machine similar to that disclosed in Specification 410,463. A cylindrical cup-shaped bobbin thread case 2 surrounds a bobbin 4 the thread 6 from which passes under a tension blade spring 8 through an eye 12 formed in the portion 14 of a yieldable member 16 to the outlet eye 10. The member 16 is formed of springy steel wire which encircles about 180 degrees of the thread case 2 and is attached at 18 in the case 2. The portion 14 is located in a cut away portion 20 of the case 2. Prior to the stitch forming operation, the member 16 occupies the position shown. During the stitch setting operation, the needle thread (not shown) exerts a tension on the bobbin thread 6 and the member 16 yields so that the portion 14 moves to the other end of the slot 20. After the stitch has been set, a cam 26 with a helical edge face 28, Fig. 5 which is pressed lightly into the shuttle casing 22 acts on the portion 14 of the member 16 to return the member 16 to the position shown which causes that member to withdraw from the bobbin 4 an amount of thread sufficient for the next succeeding stitch. To accentuate the bobbin thread pay-off and draw-off movements of the member 16, the cam 26 may be provided on its inner peripheral surface with an enlargement 32 which as the shuttle rotates presses against an enlargement 34 on the spring 8 and applies an additional clamping pressure to the thread. A modification in which the thread tension spring acts on the thread between the portion 14 and eye 10 is also described. This tension spring is attached to the case 2 by a keyhole shaped projection on the spring engaging a similar shaped recess in the casing.
GB32110/55A 1955-11-10 1955-11-10 Improvements in or relating to sewing machines Expired GB806265A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB32110/55A GB806265A (en) 1955-11-10 1955-11-10 Improvements in or relating to sewing machines
US615666A US2888892A (en) 1955-11-10 1956-10-12 Sewing machines
DEU4197A DE1046458B (en) 1955-11-10 1956-11-06 Lockstitch shoe sewing machine
FR1165113D FR1165113A (en) 1955-11-10 1956-11-09 Shuttle stitch shoe sewing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB32110/55A GB806265A (en) 1955-11-10 1955-11-10 Improvements in or relating to sewing machines

Publications (1)

Publication Number Publication Date
GB806265A true GB806265A (en) 1958-12-23

Family

ID=10333394

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32110/55A Expired GB806265A (en) 1955-11-10 1955-11-10 Improvements in or relating to sewing machines

Country Status (4)

Country Link
US (1) US2888892A (en)
DE (1) DE1046458B (en)
FR (1) FR1165113A (en)
GB (1) GB806265A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3164113A (en) * 1963-05-14 1965-01-05 Singer Co Bobbin thread pull-off for sewing machines
US3267893A (en) * 1963-05-22 1966-08-23 United Shoe Machinery Corp Thread case kicker mechanisms

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1142391A (en) * 1909-06-16 1915-06-08 Boylston Mfg Co Lock-stitch shoe-sewing machine.
US2148197A (en) * 1936-04-29 1939-02-21 United Shoe Machinery Corp Sewing machine
DE866443C (en) * 1938-08-23 1953-02-09 Singer Mfg Co Bobbin case for lockstitch sewing machines

Also Published As

Publication number Publication date
US2888892A (en) 1959-06-02
DE1046458B (en) 1958-12-11
FR1165113A (en) 1958-10-20

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