GB421609A - Improvements in lock-stitch sewing machines - Google Patents

Improvements in lock-stitch sewing machines

Info

Publication number
GB421609A
GB421609A GB18173/33A GB1817333A GB421609A GB 421609 A GB421609 A GB 421609A GB 18173/33 A GB18173/33 A GB 18173/33A GB 1817333 A GB1817333 A GB 1817333A GB 421609 A GB421609 A GB 421609A
Authority
GB
United Kingdom
Prior art keywords
hook
needle
lock
crank
machine
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
GB18173/33A
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.)
Maschinenfabrik Moenus AG
Original Assignee
Maschinenfabrik Moenus AG
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 Maschinenfabrik Moenus AG filed Critical Maschinenfabrik Moenus AG
Publication of GB421609A publication Critical patent/GB421609A/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

421,609. Sewing - machines. MASCHINENFABRIK MOENUS AKT.-GES., Frankfort-on-Main, Germany. June 26, 1933, No. 18173. Convention date, June 29, 1932. [Class 112] Lock-stitching by hooks.- In a lock-stitch sewing- machine having a straight barbed needle and a rotating hook, the hook is rotated at a non-uniform speed by a crank drive so that it is clear of the needle when this is making its downward stroke. The main shaft a of the machine carries a crank b which swings a triangular lever e about a pivot d on an arm g journalled at f to the machine. At the comer h, the lever e is connected by a link i by universal joints to the crank l which actuates the hook shaft m. This arrangement causes the hook n to turn quickly for its thread lifting movement, but to remain almost at rest while the needle passes in front of it. The needle bar p and loop spreader q are mounted on a support r and can be readily moved to the position shown in dotted lines in Fig. 5, clear of the hook, for replacing the spool.
GB18173/33A 1932-06-29 1933-06-26 Improvements in lock-stitch sewing machines Expired GB421609A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE421609X 1932-06-29

Publications (1)

Publication Number Publication Date
GB421609A true GB421609A (en) 1934-12-27

Family

ID=6458965

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18173/33A Expired GB421609A (en) 1932-06-29 1933-06-26 Improvements in lock-stitch sewing machines

Country Status (1)

Country Link
GB (1) GB421609A (en)

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