GB1325020A - Let-off mechanism for a loom - Google Patents

Let-off mechanism for a loom

Info

Publication number
GB1325020A
GB1325020A GB5361970A GB5361970A GB1325020A GB 1325020 A GB1325020 A GB 1325020A GB 5361970 A GB5361970 A GB 5361970A GB 5361970 A GB5361970 A GB 5361970A GB 1325020 A GB1325020 A GB 1325020A
Authority
GB
United Kingdom
Prior art keywords
valve
warp
arm
pump
nov
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
GB5361970A
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor 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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Publication of GB1325020A publication Critical patent/GB1325020A/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
    • D03D49/08—Warp beam brakes

Landscapes

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

Abstract

1325020 Let-off motions NISSAN MOTOR CO Ltd 11 Nov 1970 [12 Nov 1969] 53619/70 Heading D1E A let-off motion has a hydraulic pump 27 driven by the shaft 11 of the warp beam, the outlet 28 and inlet 30 of the pump being connected by a fluid conduit loop 29, 33, 31 having a flow constricting valve 29 therein controlled by a back rest 13 such that when the tension in the warp 12 decreases below a predetermined value the valve 29 is throttled to increase the resistance to fluid flow through the loop, and hence the brakng effect of the pump 27 on the warp beam, and when the warp tension increases above a predetermined value the valve is further opened to decrease the braking effect. The back rest 13 is rotatably mounted on arms 14 fixed to a shaft 15 which is rotatably mounted on the loom frame and biased in the clockwise direction by a spring 23. An arm 41 attached to arm 14 controls, through rod 42 and pivot arm 43, a plunger 36 acting on a ball (37), Fig. 2 (not shown) of a ball valve 29.
GB5361970A 1969-11-12 1970-11-11 Let-off mechanism for a loom Expired GB1325020A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9003769 1969-11-12

Publications (1)

Publication Number Publication Date
GB1325020A true GB1325020A (en) 1973-08-01

Family

ID=13987441

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5361970A Expired GB1325020A (en) 1969-11-12 1970-11-11 Let-off mechanism for a loom

Country Status (9)

Country Link
US (1) US3750715A (en)
BE (1) BE758816A (en)
CA (1) CA926271A (en)
CH (1) CH517852A (en)
CS (1) CS166161B2 (en)
DE (1) DE2055491C3 (en)
FR (1) FR2069274A5 (en)
GB (1) GB1325020A (en)
NL (1) NL157952B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2554028A (en) * 2011-07-22 2018-03-21 Joy Mm Delaware Inc Chain tension sensor

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE795452A (en) * 1972-02-15 1973-05-29 Nissan Motor CHAIN WIRE TENSION CONTROL MECHANISM
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 (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2305420A (en) * 1941-10-13 1942-12-15 Crompton & Knowles Loom Works Hydraulic let-off
US2305421A (en) * 1942-06-04 1942-12-15 Crompton & Knowles Loom Works Geared hydraulic letoff for looms
US2529241A (en) * 1946-05-03 1950-11-07 Futura Fabrics Corp Warp knitting machine
US2526303A (en) * 1948-12-30 1950-10-17 Crompton & Knowles Loom Works Letoff mechanism for looms
US2565386A (en) * 1949-04-20 1951-08-21 Steel And Alloy Tank Company Letoff motion
GB732156A (en) * 1952-03-28 1955-06-22 Westinghouse Freins & Signaux Improvements in or relating to warp-beam braking device on looms
US3105524A (en) * 1961-04-24 1963-10-01 Jr Winfred Page Enloe Warp let-off mechanism for looms
FR1292845A (en) * 1961-06-26 1962-05-04 Loom chain regulator
US3261375A (en) * 1964-04-23 1966-07-19 Draper Corp Hydraulic let-off
CH462063A (en) * 1966-08-08 1968-08-31 Mackie & Sons Ltd J Switching device for a tree of a textile machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2554028A (en) * 2011-07-22 2018-03-21 Joy Mm Delaware Inc Chain tension sensor
GB2554028B (en) * 2011-07-22 2018-09-05 Joy Global Underground Mining Llc Chain tension sensor

Also Published As

Publication number Publication date
BE758816A (en) 1971-04-16
DE2055491A1 (en) 1971-05-19
NL7016583A (en) 1971-05-14
CS166161B2 (en) 1976-01-29
CA926271A (en) 1973-05-15
CH517852A (en) 1972-01-15
DE2055491C3 (en) 1975-05-22
NL157952B (en) 1978-09-15
DE2055491B2 (en) 1974-10-10
US3750715A (en) 1973-08-07
FR2069274A5 (en) 1971-09-03

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee