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GB1300622A - Let-off motion in loom - Google Patents

Let-off motion in loom

Info

Publication number
GB1300622A
GB1300622A GB05732/70A GB1573270A GB1300622A GB 1300622 A GB1300622 A GB 1300622A GB 05732/70 A GB05732/70 A GB 05732/70A GB 1573270 A GB1573270 A GB 1573270A GB 1300622 A GB1300622 A GB 1300622A
Authority
GB
United Kingdom
Prior art keywords
back rest
controlling
rod
control means
rotational speed
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
GB05732/70A
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.)
Teijin Ltd
Original Assignee
Teijin 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 Teijin Ltd filed Critical Teijin Ltd
Publication of GB1300622A publication Critical patent/GB1300622A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D49/00—Details or constructional features not specially adapted for looms of a particular type
    • D03D49/04—Control of the tension in warp or cloth
    • D03D49/06—Warp let-off mechanisms

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)

Abstract

1300622 Positive let-off motions TEIJIN Ltd 2 April 1970 [3 April 1969] 15732/70 Heading D1E A positive let-off motion has a movable back rest 12 controlling a variable speed transmission drive 4 to the warp beam 11 such that an initial movement of the back rest increases or decreases rotational speed of the beam 11, and further movement operates a further control means to increase or decrease the rotational speed still further to allow the back rest to move back to its original position. The back rest 12 acts through levers 13 and 15, and rod 16 on a threaded rod 21 which has screwed thereon a joint 34 controlling the variable speed transmission 4. The further control means may comprise a lever 19 oscillated by a cam ring 32 acting on a follower 31 and having pawls 25, (26) and ratchet wheels 27 and 28 with teeth facing in opposite directions such that when rod 21 is lowered, wheel 27 engages with one of the pawls and it and the rod 21 are rotated so that joint 34 is further lowered and the rotational speed of the beam further increased. Other further control means may include a bevel gear mechanism Fig. 4 (not shown), or electric switches or a photoelectric cell on the back rest controlling an electric motor which alters the speed control of variable speed transmission 4, or a hydraulic piston and cylinder attached to the back rest and controlling transmission 4 through a hydraulic line.
GB05732/70A 1969-04-03 1970-04-02 Let-off motion in loom Expired GB1300622A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2606569 1969-04-03

Publications (1)

Publication Number Publication Date
GB1300622A true GB1300622A (en) 1972-12-20

Family

ID=12183268

Family Applications (1)

Application Number Title Priority Date Filing Date
GB05732/70A Expired GB1300622A (en) 1969-04-03 1970-04-02 Let-off motion in loom

Country Status (4)

Country Link
US (1) US3753451A (en)
CH (1) CH497577A (en)
DE (1) DE2016065C3 (en)
GB (1) GB1300622A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT999227B (en) * 1972-11-29 1976-02-20 Incotex Sa ADJUSTMENT MECHANISM FOR AUTOMATIC WARP UNWINDERS WITH AU TOMATISM SET TO ZERO
US3905421A (en) * 1974-04-15 1975-09-16 Jordan Ernest R Well gravelling tool
CS177626B1 (en) * 1975-04-22 1977-08-31
JPS5994648A (en) * 1982-11-16 1984-05-31 株式会社豊田自動織機製作所 Warp yarn delivery control in loom
US4552186A (en) * 1982-12-02 1985-11-12 Nissan Motor Co., Ltd. Warp let-off mechanism of weaving machine
DE502006006342D1 (en) * 2006-10-06 2010-04-15 Groz Beckert Kg Shaft gear for a weaving machine
TWI364466B (en) * 2009-12-04 2012-05-21 Taiwan Textile Res Inst Weaving machines and three-dimensional woven fabrics
US8662112B2 (en) * 2009-12-04 2014-03-04 Taiwan Textile Research Institute Weaving machines and three-dimensional woven fabrics
EP3904576B1 (en) * 2014-12-10 2023-11-22 Uchino Co., Ltd. Multiply gauze woven fabric
CN105544074B (en) * 2016-02-05 2017-08-11 江苏工程职业技术学院 A kind of double control-type weaver's web tension-adjusting gear

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1729130A (en) * 1927-12-09 1929-09-24 Franklin Machine Company Let-off for looms
US2435437A (en) * 1946-02-15 1948-02-03 Foster Jesse Odell Loom letoff mechanism
US2681080A (en) * 1951-09-27 1954-06-15 Picanol Jaime Unwinding and releasing means for the warp beam of weaving looms
US2819734A (en) * 1953-02-21 1958-01-14 Sulzer Ag Apparatus for controlling the warp in a loom for weaving
DE964432C (en) * 1953-12-22 1957-05-23 Karl Mayer Erste Hessische Wir Arrangement for controlling the thread feed on warp knitting machines
US2888955A (en) * 1956-08-28 1959-06-02 Kondo Fusakichi Positive and automatic warp let-off apparatus for power looms
CH400036A (en) * 1963-01-22 1965-09-30 Sulzer Ag Loom

Also Published As

Publication number Publication date
DE2016065B2 (en) 1974-12-19
CH497577A (en) 1970-10-15
US3753451A (en) 1973-08-21
DE2016065C3 (en) 1975-07-31
DE2016065A1 (en) 1970-11-19

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees