GB1517060A – Apparatus for controlling the rotary speed of a warp beam in a loom
– Google Patents
GB1517060A – Apparatus for controlling the rotary speed of a warp beam in a loom
– Google Patents
Apparatus for controlling the rotary speed of a warp beam in a loom
Info
Publication number
GB1517060A
GB1517060A
GB50190/76A
GB5019076A
GB1517060A
GB 1517060 A
GB1517060 A
GB 1517060A
GB 50190/76 A
GB50190/76 A
GB 50190/76A
GB 5019076 A
GB5019076 A
GB 5019076A
GB 1517060 A
GB1517060 A
GB 1517060A
Authority
GB
United Kingdom
Prior art keywords
pulley
warp
warp beam
threads
lever
Prior art date
1975-12-11
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
GB50190/76A
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.)
Nuovo Pignone SpA
Original Assignee
Nuovo Pignone SpA
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.)
1975-12-11
Filing date
1976-12-01
Publication date
1978-07-05
1975-12-11
Priority claimed from IT3019375A
external-priority
patent/IT1064077B/en
1976-12-01
Application filed by Nuovo Pignone SpA
filed
Critical
Nuovo Pignone SpA
1978-07-05
Publication of GB1517060A
publication
Critical
patent/GB1517060A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
D03D49/12—Controlling warp tension by means other than let-off mechanisms
Abstract
1517060 Warp let-off motions NUOVO PIGNONE SpA 1 Dec 1976 [11 Dec 1975] 50190/76 Heading DIE The rotary speed of a warp beam of a loom is controlled by a multi-ratio gear transmission 35, 36, 37, 38 the output 39 of which is connected to rotatably drive the warp beam and the input 30 is connected to be driven by a variable driven pulley 29 connected to be driven by a variable drive pulley 24 by a belt 28, the adjustment of the pulleys being controlled by a linkage 11, 14, 15, 20, 21, 34, 32 responsive to the tension in warp threads drawn from the warp beam. As shown, warp threads 3 are unwound from a metallic core 2 of the warp beam and pass over a drum 4 to the weaving station. The drum 4 is rotatably mounted on a rocker 11 carrying a block 13 fixed to a rod 14 pivoted to an arm 15 carrying a counterweight 19 for counterbalancing the tension of the warp threads. A link 20 connects the arm 15 to a bell-crank lever 21 which acts upon the movable flange 23 of the pulley 24 mounted on a shaft 25 driven from the mainshaft of the loom by a belt 26. The movable flange 31 of the pulley 29 is acted on by a bell-crank lever 32 connected by a link 34 to the lever 21. A spur gear wheel 35 is rotatable with the shaft 30 of the pulley 29 and meshes with a spur gear wheel 36 on a fixed idler shaft. A spur gear wheel 37 is integral and coaxial with the wheel 36 and meshes with a spur gear wheel 38 rotatable with a shaft 39 connected to the warp beam by meshing worms 40, 41 and meshing wheels 42, 43, the latter being coaxial with the warp beam 2. The wheels 35, 36, 37, 38 are mounted removably on their shafts so as to be interchangeable to obtain different gear ratios. In operation, the wheels 35, 36, 37, 38 are connected appropriately to set the desired rotary speed range of the warp beam. As the thread mass on the beam decreases, the speed at which the threads 3 are unwound tends to decrease and a tension increase occurs in the threads 3 which, acting on the drum 4, rotates the rocker 11 anticlockwise so that the arm 15 is lifted and the lever 21 is rotated anticlockwise to narrow the groove of the pulley 24 and the lever 32 is rotated clockwise to widen the groove of the pulley 29 to shift the V-belt 28 upwards and increase the angular speed of the pulley 29 to increase the angular speed of the beam 2 to its desired value.
GB50190/76A
1975-12-11
1976-12-01
Apparatus for controlling the rotary speed of a warp beam in a loom
Expired
GB1517060A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
IT3019375A
IT1064077B
(en)
1975-10-06
1975-12-11
Constant speed and tension beam let:off motion – adjusts to tension via infinitely variable pulleys and gears
Publications (1)
Publication Number
Publication Date
GB1517060A
true
GB1517060A
(en)
1978-07-05
Family
ID=11229299
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB50190/76A
Expired
GB1517060A
(en)
1975-12-11
1976-12-01
Apparatus for controlling the rotary speed of a warp beam in a loom
Country Status (7)
Country
Link
US
(1)
US4411293A
(en)
AR
(1)
AR209017A1
(en)
BR
(1)
BR7608355A
(en)
DD
(1)
DD128580A5
(en)
DE
(1)
DE2656145A1
(en)
ES
(1)
ES454555A1
(en)
GB
(1)
GB1517060A
(en)
Families Citing this family (6)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
CS215367B1
(en)
*
1980-03-31
1982-08-27
Otto Rotrekl
Regulator of constant tension of compulsory unwound particularly warp threads of the weaving machine
CS218496B1
(en)
*
1980-04-30
1983-02-25
Otto Rotrekl
Weaving machine
JPS5959946A
(en)
*
1982-09-24
1984-04-05
日産自動車株式会社
Control of loom at stopping time thereof in warp yarn send- out apparatus of loom
US6119539A
(en)
*
1998-02-06
2000-09-19
Galaxy Shipping Enterprises, Inc.
Infinitely and continuously variable transmission system
CN103382615B
(en)
*
2013-06-27
2014-12-24
浙江理工大学
Servo-driven type movable back beam mechanism
JP5999744B1
(en)
*
2014-12-10
2016-09-28
内野株式会社
Weaving method of multiple gauze and multiple gauze fabric
Family Cites Families (3)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
CH400036A
(en)
*
1963-01-22
1965-09-30
Sulzer Ag
Loom
US3630239A
(en)
*
1970-01-26
1971-12-28
Southern Machinery Co
Letoff for looms
SU456060A1
(en)
*
1973-04-23
1975-01-05
Московский текстильный институт
The main regulator to the loom
1976
1976-12-01
GB
GB50190/76A
patent/GB1517060A/en
not_active
Expired
1976-12-09
DD
DD7600196220A
patent/DD128580A5/en
unknown
1976-12-10
ES
ES454555A
patent/ES454555A1/en
not_active
Expired
1976-12-10
BR
BR7608355A
patent/BR7608355A/en
unknown
1976-12-10
DE
DE19762656145
patent/DE2656145A1/en
not_active
Ceased
1976-12-10
AR
AR265803A
patent/AR209017A1/en
active
1981
1981-10-26
US
US06/315,045
patent/US4411293A/en
not_active
Expired – Fee Related
Also Published As
Publication number
Publication date
DD128580A5
(en)
1977-11-30
US4411293A
(en)
1983-10-25
BR7608355A
(en)
1977-12-06
AR209017A1
(en)
1977-03-15
ES454555A1
(en)
1977-12-16
DE2656145A1
(en)
1977-10-27
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(en)
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Legal Events
Date
Code
Title
Description
1978-11-08
PS
Patent sealed [section 19, patents act 1949]
1988-07-27
PCNP
Patent ceased through non-payment of renewal fee
