Patent JPS637533A successfully refreshed from Google Patents.
Patent US3764773A successfully refreshed from Google Patents.
US3764773A
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US
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Device for stopping a yarnworking machine in response to thread tension
Assignee: BLEYLE KG WILHELM
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Filing: 1972-03-14
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Granted: 1973-10-09
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Expires: 1992-03-14
Abstract
Abstract A process and device for stopping a yarnworking machine is disclosed. The device comprises a thread holder which is maintained in operative position by holding means of predetermined force; switching means electrically coupled to the holding means such that thread being processed through the machine is conducted through the thread holder and maintained at a predetermined tension; the switching means being operative at the predetermined tension to maintain the yarnworking machine in operation.
Inventors
- 👤 E Merkle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:51
CPC Classifications
B; B65; B65H; B65H59/00; B65H59/40; B65H2701/00; B65H2701/30; B65H2701/31
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
211 words
Apparatus for stopping a yarnworking machine when the thread tension in the yarn exceeds a predetermined value or when the yarn breaks, comprising: a thread holder assembly including a movable yarn carrying member for guiding said yarn in a predetermined path when in a first position, said member being movable to a second position in response to a force exerted thereon by the thread tension; force generating means associated with the thread holder assembly for exerting a predetermined force on the yarn carrying member, said force being opposite the force exerted by the thread tension and sufficIent to hold the yarn carrying member in the first position against the force exerted by the predetermined thread tension; and switch means operatively connected to the yarn-working machine and the force generating means and responsive to the presence of yarn in the predetermined path for maintaining the machine in an operating condition and for energizing said force generating means, so that the switch means is responsive to the absence of yarn in the predetermined path and the machine is stopped when the yarn breaks or the thread tension exceeds the predetermined value causing the force of the force generating means to be overcome and the yarn carrying member to move to the second position.
Claim 2
Dependent Claim
211 words
Apparatus for stopping a yarnworking machine when the thread tension in the yarn exceeds a predetermined value or when the yarn breaks, comprising: a thread holder assembly including a movable yarn carrying member for guiding said yarn in a predetermined path when in a first position, said member being movable to a second position in response to a force exerted thereon by the thread tension; force generating means associated with the thread holder assembly for exerting a predetermined force on the yarn carrying member, said force being opposite the force exerted by the thread tension and sufficIent to hold the yarn carrying member in the first position against the force exerted by the predetermined thread tension; and switch means operatively connected to the yarn-working machine and the force generating means and responsive to the presence of yarn in the predetermined path for maintaining the machine in an operating condition and for energizing said force generating means, so that the switch means is responsive to the absence of yarn in the predetermined path and the machine is stopped when the yarn breaks or the thread tension exceeds the predetermined value causing the force of the force generating means to be overcome and the yarn carrying member to move to the second position.
Claim 3
Dependent Claim
13 words
The apparatus of claim 1 wherein the force generating means is an electromagnet.
Claim 4
Dependent Claim
21 words
The apparatus of claim 2 wherein the force generating means is also provided with means for continuously varying the field strength.
Claim 5
Dependent Claim
16 words
The device of claim 1 wherein the thread holder assembly is slidably mounted on a rod.
Claim 6
Dependent Claim
13 words
The apparatus of claim 4 wherein the force generating means is an electromagnet.
Claim 7
Dependent Claim
44 words
The apparatus of claim 1 wherein said movable yarn carrying member is pivoted at one end and having a forked head portion formed at the other end; said forked head portion having an opening therein for passing the yarn therethrough along said predetermined path.
Claim 8
Dependent Claim
34 words
The apparatus of claim 1 wherein the switch moves from a first operating position to a second position to stop the machine off in response to the absence of yarn in the predetermined path.
Claim 9
Dependent Claim
65 words
The apparatus of claim 7 wherein said switch means is electrically connected to the force generating means so that when the yarn breaks or the thread holder assembly moves in the direction of the force exerted on it by the yarn, the switch means will move from the first operating position and open a circuit for deenergizing the force generating means and the yarnworking machine.
Claim 10
Independent Claim
219 words
An apparatus for stopping a yarnworking machine when the thread tension in the yarn exceeds a predetermined value or when the yarn breaks, comprising: a thread holder assembly including a movably yarn carrying member for guiding said yarn in a predetermined path when in a first position, said member being movable to a second position in response to a force exerted thereon by the thread tension; suction means constructed and arranged with the thread holder assembly for exerting a predetermined force on the yarn carrying member, the direction of said force being opposite to the force exerted by the thread tension and sufficient to hold the yarn carrying member in the first position against the force exerted by the predetermined thread tension; and switch means operatively connected to the yarn-working machine and the force generating means and being responsive to the presence of yarn in the predetermined path for maintaining the machine in an operating condition and for energizing said force generating means, so that the switch means is responsive to the absence of yarn in the predetermined path and the machine is stopped when the yarn breaks or the thread tension exceeds the predetermined value causing the force maintained by the force generating means to be overcome and the yarn carrying member to move to the second position.
Claim 11
Independent Claim
219 words
An apparatus for stopping a yarnworking machine when the thread tension in the yarn exceeds a predetermined value or when the yarn breaks, comprising: a thread holder assembly including a movably yarn carrying member for guiding said yarn in a predetermined path when in a first position, said member being movable to a second position in response to a force exerted thereon by the thread tension; suction means constructed and arranged with the thread holder assembly for exerting a predetermined force on the yarn carrying member, the direction of said force being opposite to the force exerted by the thread tension and sufficient to hold the yarn carrying member in the first position against the force exerted by the predetermined thread tension; and switch means operatively connected to the yarn-working machine and the force generating means and being responsive to the presence of yarn in the predetermined path for maintaining the machine in an operating condition and for energizing said force generating means, so that the switch means is responsive to the absence of yarn in the predetermined path and the machine is stopped when the yarn breaks or the thread tension exceeds the predetermined value causing the force maintained by the force generating means to be overcome and the yarn carrying member to move to the second position.
Claim 12
Independent Claim
145 words
An apparatus for stopping a yarnworking machine, if the thread tension in the yarn exceeds a predetermined value or if the yarn breaks, comprising: a thread holder assembly including a movable yarn carrying member for carrying the yarn along a predetermined path; an electromagnet means constructed and arranged with the thread holder assembly for exerting a predetermined force on the yarn carrying member, the direction of said force being opposite to the force exerted by the thread tension and sufficient to hold the yarn carrying member in a first position against the force exerted by the predetermined thread tension; and switch means including a feeler which feels the position Of the yarn on the yarn carrying member whereby when the position of the yarn is changed along the predetermined path the switch operates from its first position to a second position to stop the machine.
Claim 13
Independent Claim
145 words
An apparatus for stopping a yarnworking machine, if the thread tension in the yarn exceeds a predetermined value or if the yarn breaks, comprising: a thread holder assembly including a movable yarn carrying member for carrying the yarn along a predetermined path; an electromagnet means constructed and arranged with the thread holder assembly for exerting a predetermined force on the yarn carrying member, the direction of said force being opposite to the force exerted by the thread tension and sufficient to hold the yarn carrying member in a first position against the force exerted by the predetermined thread tension; and switch means including a feeler which feels the position Of the yarn on the yarn carrying member whereby when the position of the yarn is changed along the predetermined path the switch operates from its first position to a second position to stop the machine.
Claim 14
Dependent Claim
15 words
The apparatus of claim 10 wherein the feeler also effects a deenergization of the electromagnet.
Claim 15
Dependent Claim
30 words
The device of claim 10 wherein the yarn carrying member is slidably positioned on a rod to slide in the direction of the force exerted on it by the yarn.
Claim 16
Dependent Claim
43 words
The apparatus of claim 10 wherein the yarn carrying member includes a recess over which the yarn is passed and in which said feeler rests on the yarn to determine the position of the yarn as it is moving along said predetermined path.
References Cited (Backward Citations)
US3354627A
Cited
US3612791A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-08 | 1977-04-09 | 1977-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-08 | 1981-04-09 | 1981-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-08 | 1985-04-09 | 1985-10-09 | $7700.00 | Window Closed / Lapsed |