GB750812A - Improvements in or relating to sewing machines - Google Patents

Improvements in or relating to sewing machines

Info

Publication number
GB750812A
GB750812A GB2446053A GB2446053A GB750812A GB 750812 A GB750812 A GB 750812A GB 2446053 A GB2446053 A GB 2446053A GB 2446053 A GB2446053 A GB 2446053A GB 750812 A GB750812 A GB 750812A
Authority
GB
United Kingdom
Prior art keywords
mounting
lead screw
sleeve
work
sewing
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
GB2446053A
Inventor
Kenneth William Stretton
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.)
WOOD BASTOW AND CO Ltd
Original Assignee
WOOD BASTOW AND CO 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 WOOD BASTOW AND CO Ltd filed Critical WOOD BASTOW AND CO Ltd
Priority to GB2446053A priority Critical patent/GB750812A/en
Publication of GB750812A publication Critical patent/GB750812A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B35/00—Work-feeding or -handling elements not otherwise provided for
    • D05B35/10—Edge guides
    • D05B35/107—Fixed or adjustable pin holding the work, e.g. for circular or spiral stitching

Landscapes

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

Abstract

750,812. Sewing-machines. WOOD, BASTOW & CO., Ltd. Sept. 6, 1954 [Sept. 4, 1953], No. 24460/53. Class 112. Apparatus for producing spiral stitching with a substantially constant pitch of spiral comprises a mounting 5 on which the work is rotatable by the normal sewing action of the machine, support or guide means 2 on which the mounting is movable substantially in the plane of the work so as to vary the distance between the centre of rotation and the needle, and a lead screw 8, having a progressively varying pitch, for shifting the mounting as sewing progresses so as to maintain a substantially constant pitch of spiral, the lead screw being adapted to be driven from the machine itself. The mounting 5 is slidably supported in a groove 3 provided in the member 2. The work rotates about a pin 6 carried by the mounting 5 at its end nearest the needle. The mounting is releasably coupled to the lead screw by a follower 7 in the form of a spindle, the lower end 7a of which is forked to engage the screw thread, and the upper end 17 of which is knurled, whereby the spindle may be lifted against the bias of a spring to disengage the end 7a from the lead screw. The latter is driven by reduction gearing from the pulley of the machine. A sleeve 18, containing the follower 7, passes through a slot 19 in the base of the groove 3. The upper end of sleeve 18 carries a ball race 20 secured to the mounting 5, and a ball race 21, slidably mounted on sleeve 18, is biased by a spring 22 towards the member 2.
GB2446053A 1953-09-04 1953-09-04 Improvements in or relating to sewing machines Expired GB750812A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2446053A GB750812A (en) 1953-09-04 1953-09-04 Improvements in or relating to sewing machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2446053A GB750812A (en) 1953-09-04 1953-09-04 Improvements in or relating to sewing machines

Publications (1)

Publication Number Publication Date
GB750812A true GB750812A (en) 1956-06-20

Family

ID=10212056

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2446053A Expired GB750812A (en) 1953-09-04 1953-09-04 Improvements in or relating to sewing machines

Country Status (1)

Country Link
GB (1) GB750812A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2955551A (en) * 1957-01-22 1960-10-11 Stephen J Tobias Spiral stitching device for sewing machines
US3023719A (en) * 1957-08-26 1962-03-06 Stephen J Tobias Spiral stitching device for a sewing machine
CN112111864A (en) * 2020-09-24 2020-12-22 贵州紫日茶业科技有限公司 Traditional chinese medicine health care medicine pillow sewing device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2955551A (en) * 1957-01-22 1960-10-11 Stephen J Tobias Spiral stitching device for sewing machines
US3023719A (en) * 1957-08-26 1962-03-06 Stephen J Tobias Spiral stitching device for a sewing machine
CN112111864A (en) * 2020-09-24 2020-12-22 贵州紫日茶业科技有限公司 Traditional chinese medicine health care medicine pillow sewing device

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