Patent US4404993A successfully refreshed from Google Patents.
US4404993A
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: 1981-10-16
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Granted: 1983-09-20
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Expires: 2001-10-16
Abstract
Abstract The link disposed about the eccentric carries two stop elements in the form of rollers. When the pawl is engaged with the driving shaft, the stop rollers move in respective oval paths so as to engage and swing out the control levers to insure that the control levers do not accidentally swing inwardly into the path of the moving pawl or latch locking the pawl in coupled relation with the shaft. The stop rollers also permit an overstroke of the bar to occur in which there is a clearance between the bar and the reversing position of the stroke meter. In this way, the stroke of the stroke meter can be made smaller.
Inventors
- 👤 Werner Julich
- 👤 Gunter Muller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:17
CPC Classifications
D; D03; D03C; D03C1/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
169 words
A clutch arrangement for controlling a heddle of a weaving machine, 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; a link disposed about said eccentric for movement in an orbital manner about said shaft to impart a reciprocating movement to a connecting rod for driving a heddle with said pawl engaged in said slot; at least one control lever movable between a blocking position in the path of said pawl and a release position spaced from said pawl; a bar connected to said control lever; a stroke meter drive for moving said bar to cause said lever to move between said positions; and at least one stop element mounted on said link for engaging said control lever during rotation of said eccentric to maintain said control lever in said release position during at least part of said orbital movement of said link.
Claim 2
Dependent Claim
169 words
A clutch arrangement for controlling a heddle of a weaving machine, 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; a link disposed about said eccentric for movement in an orbital manner about said shaft to impart a reciprocating movement to a connecting rod for driving a heddle with said pawl engaged in said slot; at least one control lever movable between a blocking position in the path of said pawl and a release position spaced from said pawl; a bar connected to said control lever; a stroke meter drive for moving said bar to cause said lever to move between said positions; and at least one stop element mounted on said link for engaging said control lever during rotation of said eccentric to maintain said control lever in said release position during at least part of said orbital movement of said link.
Claim 3
Dependent Claim
30 words
A clutch arrangement as set forth in claim 1 wherein said control lever has a lifting flank for selectively engaging said stop element during said part of said orbital movement.
Claim 4
Dependent Claim
32 words
A clutch arrangement as set forth in claim 2 wherein said control lever has an outwardly directed bend adjoining said flank to permit said control lever to move towards said blocking position.
Claim 5
Dependent Claim
33 words
A clutch arrangement as set forth in claim 1 which further comprises a pair of said control levers disposed about said shaft and a joint connecting said levers together for common pivoting action.
Claim 6
Dependent Claim
146 words
In a clutch arrangement for controlling a heddle of a weaving machine, the combination 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; a link disposed about said eccentric for movement in an orbital manner about said shaft to impart a reciprocating movement to a connecting rod for driving a heddle with said pawl engaged in said slot; at least one control lever movable between a blocking position in the path of said pawl and a release position spaced from said pawl; and at least one stop element mounted on said link for engaging said control lever during rotation of said eccentric to maintain said control lever in said release position during at least part of said orbital movement of said link.
Claim 7
Dependent Claim
146 words
In a clutch arrangement for controlling a heddle of a weaving machine, the combination 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; a link disposed about said eccentric for movement in an orbital manner about said shaft to impart a reciprocating movement to a connecting rod for driving a heddle with said pawl engaged in said slot; at least one control lever movable between a blocking position in the path of said pawl and a release position spaced from said pawl; and at least one stop element mounted on said link for engaging said control lever during rotation of said eccentric to maintain said control lever in said release position during at least part of said orbital movement of said link.
References Cited (Backward Citations)
DE1154048B
Cited
SU578506A1
Cited
SU632772A1
Cited
DE2741199A1
Cited
US4315530A
Cited
DE2942573A1
Cited
EP0047791A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-09-19 | 1987-03-21 | 1987-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-09-19 | 1991-03-21 | 1991-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-09-19 | 1995-03-21 | 1995-09-20 | $7700.00 | Window Closed / Lapsed |