GB784200A - - Google Patents

Info

Publication number
GB784200A
GB784200A GB784200DA GB784200A GB 784200 A GB784200 A GB 784200A GB 784200D A GB784200D A GB 784200DA GB 784200 A GB784200 A GB 784200A
Authority
GB
United Kingdom
Prior art keywords
arm
eccentric
frame
shaft
secured
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.)
Active
Application number
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.)
Publication of GB784200A publication Critical patent/GB784200A/en
Active legal-status Critical Current

Links

Classifications

    • DTEXTILES; PAPER
    • D05SEWING; EMBROIDERING; TUFTING
    • D05BSEWING
    • D05B57/00Loop takers, e.g. loopers
    • D05B57/02Loop takers, e.g. loopers for chain-stitch sewing machines, e.g. oscillating
    • DTEXTILES; PAPER
    • D05SEWING; EMBROIDERING; TUFTING
    • D05BSEWING
    • D05B3/00Sewing apparatus or machines with mechanism for lateral movement of the needle or the work or both for making ornamental pattern seams, for sewing buttonholes, for reinforcing openings, or for fastening articles, e.g. buttons, by sewing
    • D05B3/02Sewing apparatus or machines with mechanism for lateral movement of the needle or the work or both for making ornamental pattern seams, for sewing buttonholes, for reinforcing openings, or for fastening articles, e.g. buttons, by sewing with mechanisms for needle-bar movement
    • DTEXTILES; PAPER
    • D05SEWING; EMBROIDERING; TUFTING
    • D05DINDEXING SCHEME ASSOCIATED WITH SUBCLASSES D05B AND D05C, RELATING TO SEWING, EMBROIDERING AND TUFTING
    • D05D2209/00Use of special materials
    • DTEXTILES; PAPER
    • D05SEWING; EMBROIDERING; TUFTING
    • D05DINDEXING SCHEME ASSOCIATED WITH SUBCLASSES D05B AND D05C, RELATING TO SEWING, EMBROIDERING AND TUFTING
    • D05D2303/00Applied objects or articles
    • D05D2303/08Cordage

Landscapes

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

Abstract

784,200. Sewing machines. UNION SPECIAL MACHINE CO. Jan. 19, 1956 [Feb. 3, 1955], No. 1798/56. Class 112 [Also in Group XXIV] Needles, shifting laterally. The needle bar 18, Fig. 1, is mounted in one limb 22 of an L- shaped frame pivoted on .a stud 23, the other limb 24 of the frame extend-' ing through the arm 12 into the standard 11. The limb 24 is connected by a pitman 29, of variable length, with a rock frame 33 actuated from the driving shaft 14 through gears 46, 45. Lateral whipping of the limbs 24, 22 is prevented respectively by a guide 145 and surfaces on the needle-head. Instead of the L-shaped frame being formed by limbs secured together by rivets 25 as shown. it may be formed by a pair of parallel spaced L-shaped thin steel plates stiffened and united by a series of blocks copper welded therebetween, Figs. 17- 21 (not shown). The gear 45, Fig. 9, is of fibrous material and is mounted on the hub of a cam 37, with a dwell of 70 degrees, embraced by a fork on the frame 33. The lower end of the pitman 29 embraces a ball-headed pin 31 engaging a slot 32 in the frame. The amplitude of the needle vibrations may be varied by varying the position of the pin relative to the pivot 34 of the frame. Stitch forming. The driving shaft 14 is in sections interconnected by couplings 16, 17, and actuates a four-motion looper 56. In Figs. 13-16 (not shown), a loop retainer is carried by an eccentric strap embracing a cylindrical eccentric mounted on the driving shaft. The strap is reciprocated along its eccentric by a spherical eccentric adjacent the cylindrical one so that the retainer moves in an elliptical path. Feeding work; presser bars. In addition to a lower feed-dog the machine of Fig. 22 employs a puller roller 190 arranged above the work. A variable eccentric 163 is arranged on a shaft driven by gear 46, through an intermediate fibre gear 150. A pitman 166 operated by the eccentric drives the roller step-by-step through a one-way clutch (see Group XXIV), gears 176, 183, and a shaft 186 comprising universal joints 185, 187. The shaft bearing, at the puller roller end is capable of guided vertical movement against an adjustable spring 201. A block 202 on the presser bar has a downwardly extending arm 203 at the lower end of which a presser foot 204 is pivotally mounted. When the presser bar is lifted to introduce or remove work the block 202 engages a shoulder on member 205 secured to the puller roller bearing to raise the latter also. A bent wire element 207 surrounding the roller strips the work therefrom during feeding. A block secured to the presser bar is connected by a link with a lever 93, Fig. 1, mounted on a pivot screw 95 and provided with an :arm 94 connected by a rod 96 with a plate 97 secured to a rock shaft 98 carrying an arm connected by a chain or rod to a knee-press or treadle. Threads, controlling. An extension on the arm last referred to has an elongated camming slot co-operating with a screw stud projecting from an arm clamped on a transverse rock shaft carrying another arm provided with a pin acting on a further slotted plate, by camming action, to perform the tension releasing function on the thread tension devices, Fig. 3 (not shown)
GB784200D 1955-02-03 Active GB784200A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US485882A US2792797A (en) 1955-02-03 1955-02-03 Zigzag sewing machines

Publications (1)

Publication Number Publication Date
GB784200A true GB784200A (en)

Family

ID=23929805

Family Applications (1)

Application Number Title Priority Date Filing Date
GB784200D Active GB784200A (en) 1955-02-03

Country Status (4)

Country Link
US (1) US2792797A (en)
DE (2) DE1063016B (en)
FR (1) FR1152105A (en)
GB (1) GB784200A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2362200A (en) * 2000-05-25 2001-11-14 Walterscheid Gmbh Gkn Driving arrangement having a free-wheel coupling with Belleville spring friction brake

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3068818A (en) * 1960-12-06 1962-12-18 Union Special Machine Co Two-thread chainstitch sewing machine
DE1269873B (en) * 1964-11-26 1968-06-06 Duerkoppwerke Double chain stitch zigzag sewing machine
US3491710A (en) * 1966-12-29 1970-01-27 Union Special Machine Co Sewing machine with improved throat plate and feed dog construction
US3499407A (en) * 1967-09-19 1970-03-10 Union Special Machine Co Flat bed sewing machine
US4373460A (en) * 1978-04-26 1983-02-15 Union Special Corporation Sewing machine loopers

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1742221A (en) * 1927-03-23 1930-01-07 Roseman Leo Sewing machine
DE591656C (en) * 1932-05-12 1934-01-25 Singer Mfg Co Zigzag sewing machine
DE641936C (en) * 1936-01-16 1937-02-17 Union Special Maschinenfab Sewing machine gripper
US2263414A (en) * 1940-07-03 1941-11-18 Wright Aeronautical Corp Fluid circulating system
US2600543A (en) * 1944-12-28 1952-06-17 Husqvarna Vapenfabriks Ab Zigzag sewing machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2362200A (en) * 2000-05-25 2001-11-14 Walterscheid Gmbh Gkn Driving arrangement having a free-wheel coupling with Belleville spring friction brake
GB2362200B (en) * 2000-05-25 2002-04-03 Walterscheid Gmbh Gkn Driving arrangement having a free-wheel coupling with Belleville spring friction brake
US6540055B2 (en) 2000-05-25 2003-04-01 Gkn Walterscheid Gmbh Driving arrangement with a free-wheel coupling

Also Published As

Publication number Publication date
US2792797A (en) 1957-05-21
DE1037823B (en) 1958-08-28
DE1063016B (en) 1959-08-06
FR1152105A (en) 1958-02-12

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