Patent US4497346A successfully refreshed from Google Patents.
US4497346A
Expired / Lapsed
US
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Clutch arrangement for controlling a heddle of a weaving machine
Assignee: Sulzer AG
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Filing: 1981-09-09
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Granted: 1985-02-05
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Expires: 2001-09-09
Abstract
Abstract The clutch arrangement contains a stroke member which carries two levers and a spring connecting the levers. The stroke member is driven by a drive lever which engages between the two levers. The stroke member drives the bar for the control levers while a scanning arm is moved against the armature of an electromagnet. Both movements occur with a force transmission occuring via the single spring. This provides for especially gentle treatment of the parts. At the same time, relatively few parts are needed.
Inventors
- 👤 Otto Hintsch
- 👤 Werner Julich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:15
CPC Classifications
D; D03; D03C; D03C1/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
148 words
A clutch arrangement for controlling a heddle of a power loom, said arrangement comprising an intermittently rotatable drive shaft having at least one slot therein; an eccentric rotatably mounted on said shaft; a pawl mounted on said eccentric for engagement in said slot of said shaft; at least one control lever movable into the path of said pawl; a bar connected to said control lever for moving said control lever back and forth; a stroke meter drive for engaging said bar to move said bar; a program control device for controlling operation of said pawl; a stroke member for selectively driving said bar in programmed response to said stroke member scanning said control device; a drive lever for imparting motion to said stroke member; and a spring interposed between said drive lever and said stroke member for biasing said stroke member against said bar to transmit forces therebetween.
Claim 2
Dependent Claim
148 words
A clutch arrangement for controlling a heddle of a power loom, said arrangement comprising an intermittently rotatable drive shaft having at least one slot therein; an eccentric rotatably mounted on said shaft; a pawl mounted on said eccentric for engagement in said slot of said shaft; at least one control lever movable into the path of said pawl; a bar connected to said control lever for moving said control lever back and forth; a stroke meter drive for engaging said bar to move said bar; a program control device for controlling operation of said pawl; a stroke member for selectively driving said bar in programmed response to said stroke member scanning said control device; a drive lever for imparting motion to said stroke member; and a spring interposed between said drive lever and said stroke member for biasing said stroke member against said bar to transmit forces therebetween.
Claim 3
Dependent Claim
61 words
A clutch arrangement as set forth in claim 1 which further comprises a pin mounted on said stroke member, a pair of levers pivotally mounted on said stroke member with said pin therebetween and with said spring biasing said levers towards each other, and a pin on said drive lever disposed between said levers for imparting motion to said stroke member.
Claim 4
Dependent Claim
30 words
A clutch arrangement as set forth in claim 2 wherein said control device includes an electromagnet having a pivotal armature for selectively abutting a scanning end of said stroke member.
Claim 5
Dependent Claim
79 words
In a clutch arrangement for controlling a heddle of a weaving machine, the combination comprising a control lever mounted for movement between a blocking position and a release position; a bar for moving said control lever between said positions; a reciprocal stroke member for moving said bar between an operative position and an inoperative position; a drive lever for reciprocating said stroke member and a spring interposed between said drive lever and said stroke member for transmitting forces therebetween.
Claim 6
Dependent Claim
79 words
In a clutch arrangement for controlling a heddle of a weaving machine, the combination comprising a control lever mounted for movement between a blocking position and a release position; a bar for moving said control lever between said positions; a reciprocal stroke member for moving said bar between an operative position and an inoperative position; a drive lever for reciprocating said stroke member and a spring interposed between said drive lever and said stroke member for transmitting forces therebetween.
Claim 7
Dependent Claim
60 words
The combination as set forth in claim 4 which further comprises a pin mounted on said stroke member, a pair of levers pivotally mounted on said stroke member with said pin therebetween and with said spring biasing said levers towards each other, and a pin on said drive lever disposed between said levers for imparting motion to said stroke member.
Claim 8
Dependent Claim
106 words
In a clutch arrangement for controlling a heddle of a weaving machine, the combination comprising a control lever mounted for movement between a blocking position and a release position; a bar for moving said control lever between said positions; a reciprocal stroke member for moving said bar between an operative position and an inoperative position; a pin mounted on said stroke member; a pair of levers pivotally mounted on said stroke member with said pin therebetween; a spring biasing said levers towards each other, and a drive for reciprocating said stroke member having a pin disposed between said levers for imparting motion to said stroke member.
Claim 9
Dependent Claim
106 words
In a clutch arrangement for controlling a heddle of a weaving machine, the combination comprising a control lever mounted for movement between a blocking position and a release position; a bar for moving said control lever between said positions; a reciprocal stroke member for moving said bar between an operative position and an inoperative position; a pin mounted on said stroke member; a pair of levers pivotally mounted on said stroke member with said pin therebetween; a spring biasing said levers towards each other, and a drive for reciprocating said stroke member having a pin disposed between said levers for imparting motion to said stroke member.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-02-05 | 1988-08-06 | 1989-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-02-05 | 1992-08-06 | 1993-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-02-05 | 1996-08-06 | 1997-02-05 | $7700.00 | Window Closed / Lapsed |