GB1398419A - Method of manufacturing a latch needle - Google Patents
Method of manufacturing a latch needleInfo
- Publication number
- GB1398419A GB1398419A GB4544872A GB4544872A GB1398419A GB 1398419 A GB1398419 A GB 1398419A GB 4544872 A GB4544872 A GB 4544872A GB 4544872 A GB4544872 A GB 4544872A GB 1398419 A GB1398419 A GB 1398419A
- Authority
- GB
- United Kingdom
- Prior art keywords
- recess
- latch
- punch
- needle
- blank
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21G—MAKING NEEDLES, PINS OR NAILS OF METAL
- B21G1/00—Making needles used for performing operations
- B21G1/06—Making needles used for performing operations of needles with hook or barb, e.g. crochet hooks
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B35/00—Details of, or auxiliary devices incorporated in, knitting machines, not otherwise provided for
- D04B35/02—Knitting tools or instruments not provided for in group D04B15/00 or D04B27/00
- D04B35/04—Latch needles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
1398419 Making latch needles; forging; extruding SINGER CO 3 Oct 1972 [26 May 1972] 45448/72 Headings B3A B3H and B3P [Also in Divisions D1] A method of making a latch needle comprises; locating a needle blank in a die 12, pressing a punch 20 into the blank to form the exterior surface of the needle and to form a longitudinal recess in the blank, inserting a preformed latch member 54 in the recess and fastening the latch member in the recess. The punch 20 forms latch seats (34), (36) at either end of the recess, Fig. 4 (not shown), and the punch leading end 24 contours the bottom 38 of the recess. An alternative form of punch (42), Fig. 3a (not shown), is provided with a leading end portion (50) which pierces the bottom of the recess and enters a clearance (44) in a die (40), thereby punching a slot (52) in the needle. The slot may be punched in a separate operation after forming the recess. The latch members 54 are stamped from a strip 55 and may be formed with trunnions 62, 64 which are subsequently hardened. The latch is placed in the recess and walls 30, 32 of the recess are pressed against the trunnions, which form bearing seats for pivoting movement. Alternatively the latch may be secured by upsetting the recess wall into a hole in the latch or by a rivet.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US25726172A | 1972-05-26 | 1972-05-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1398419A true GB1398419A (en) | 1975-06-18 |
Family
ID=22975547
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4544872A Expired GB1398419A (en) | 1972-05-26 | 1972-10-03 | Method of manufacturing a latch needle |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE791247A (en) |
FR (1) | FR2185461B3 (en) |
GB (1) | GB1398419A (en) |
IT (1) | IT969620B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1146157A2 (en) * | 2000-04-15 | 2001-10-17 | Groz-Beckert KG | Latch needle with improved thread space |
EP1741502A1 (en) * | 2005-06-16 | 2007-01-10 | Hugo Kern und Liebers GmbH & Co. KG Platinen-und Federnfabrik | Method of manufacturing needles for textile machines |
-
0
- BE BE791247D patent/BE791247A/en unknown
-
1972
- 1972-10-03 GB GB4544872A patent/GB1398419A/en not_active Expired
- 1972-10-17 IT IT3056572A patent/IT969620B/en active
- 1972-10-25 FR FR7237772A patent/FR2185461B3/fr not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1146157A2 (en) * | 2000-04-15 | 2001-10-17 | Groz-Beckert KG | Latch needle with improved thread space |
EP1146157A3 (en) * | 2000-04-15 | 2002-01-30 | Groz-Beckert KG | Latch needle with improved thread space |
EP1741502A1 (en) * | 2005-06-16 | 2007-01-10 | Hugo Kern und Liebers GmbH & Co. KG Platinen-und Federnfabrik | Method of manufacturing needles for textile machines |
CN1880533B (en) * | 2005-06-16 | 2011-01-26 | 胡戈克恩和利伯斯两合公司板簧生产厂 | Method of manufacturing needles for textile machines and the needles |
Also Published As
Publication number | Publication date |
---|---|
BE791247A (en) | 1973-03-01 |
FR2185461A1 (en) | 1974-01-04 |
IT969620B (en) | 1974-04-10 |
FR2185461B3 (en) | 1975-11-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |