Patent US3644964A successfully refreshed from Google Patents.
US3644964A
Expired / Lapsed
US
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Apparatus for controlling the variation of silver delivered from a carding machine
Assignee: Carding Specialists Canada Ltd
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Filing: 1969-08-29
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Granted: 1972-02-29
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Expires: 1989-08-29
Abstract
Abstract The invention comprises a method of and means for controlling the count of a sliver while being fed from a carding machine to ensure a substantially uniform sliver, the sectional size of the sliver being related to a valve setting and passed through sensing means so that any slight variation in the sliver size is sensed and magnified to operate the valve which operates a fluid motor which in turn operates variator control means capable of causing correction of the sliver size.
Inventors
- 👤 John Maximilian Jules Varga
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:24
CPC Classifications
D; D01; D01G; D01G23/00; D01G23/06
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
351 words
Apparatus for controlling the count of a sliver fed from a carding machine having a drive mechanism, said apparatus comprising a. a separately driven feed drive; b. sliver sensing means having two sensing elements between which said sliver passes; c. means mounting one of said elements for movement relative to the other of said elements in accordance with variations in sliver thickness from a normal thickness; d. lever means comprising 1. a housing; 2. a bellcrank lever pivotally mounted in said housing and having an upper arm rotatably supporting said one of said elements, and a lower arm; 3. a magnifying lever having upper and lower ends, the upper end of said magnifying lever being pivotally connected to the lower arm of said bellcrank lever; 4. a control lever having one end pivotally mounted within said housing and the other end pivotally connected to said magnifying lever adjacent the upper end of said magnifying lever, said lever means being operable by movement of said one of said elements to produce a corresponding magnified movement at the lower end of said magnifying lever; e. valve means coupled to the lower end of said magnifying lever responsive solely to said magnified movement and movable thereby from an initial setting related to the normal thickness of the sliver; f. a fluid-operated motor, flow of fluid to which is controlled by said valve means, the direction of flow being dependent on the sense of movement of said valve means from said initial setting and the rate of flow varying continuously with the distance of movement of said valve means from said initial setting; and g. variator control means having an input shaft coupled to the drive mechanism of said carding machine and an output shaft coupled to said separately driven feed drive, said variator control means being further coupled to said fluid operated motor to vary its output speed and thereby cause correction of the sliver size at a rate and in a direction dependent on the rate and direction of flow of said fluid and independently of the position of said variator control means.
Claim 2
Dependent Claim
351 words
Apparatus for controlling the count of a sliver fed from a carding machine having a drive mechanism, said apparatus comprising a. a separately driven feed drive; b. sliver sensing means having two sensing elements between which said sliver passes; c. means mounting one of said elements for movement relative to the other of said elements in accordance with variations in sliver thickness from a normal thickness; d. lever means comprising 1. a housing; 2. a bellcrank lever pivotally mounted in said housing and having an upper arm rotatably supporting said one of said elements, and a lower arm; 3. a magnifying lever having upper and lower ends, the upper end of said magnifying lever being pivotally connected to the lower arm of said bellcrank lever; 4. a control lever having one end pivotally mounted within said housing and the other end pivotally connected to said magnifying lever adjacent the upper end of said magnifying lever, said lever means being operable by movement of said one of said elements to produce a corresponding magnified movement at the lower end of said magnifying lever; e. valve means coupled to the lower end of said magnifying lever responsive solely to said magnified movement and movable thereby from an initial setting related to the normal thickness of the sliver; f. a fluid-operated motor, flow of fluid to which is controlled by said valve means, the direction of flow being dependent on the sense of movement of said valve means from said initial setting and the rate of flow varying continuously with the distance of movement of said valve means from said initial setting; and g. variator control means having an input shaft coupled to the drive mechanism of said carding machine and an output shaft coupled to said separately driven feed drive, said variator control means being further coupled to said fluid operated motor to vary its output speed and thereby cause correction of the sliver size at a rate and in a direction dependent on the rate and direction of flow of said fluid and independently of the position of said variator control means.
Claim 3
Dependent Claim
16 words
a fourth pair of bearings, the outer races of which are secured to said control lever;
Claim 4
Dependent Claim
16 words
a fourth pair of bearings, the outer races of which are secured to said control lever;
Claim 5
Dependent Claim
24 words
a bellcrank lever pivotally mounted in said housing and having an upper arm rotatably supporting said one of said elements, and a lower arm;
Claim 6
Dependent Claim
24 words
a bellcrank lever pivotally mounted in said housing and having an upper arm rotatably supporting said one of said elements, and a lower arm;
Claim 7
Dependent Claim
28 words
Apparatus as claimed in claim 1 wherein a. the pivotal connection between the lower arm of said bellcrank lever and the upper end of said magnifying lever comprises
Claim 8
Dependent Claim
19 words
a second bearing, the outer race of which is secured to the upper end of said magnifying lever; and
Claim 9
Dependent Claim
19 words
a second bearing, the outer race of which is secured to the upper end of said magnifying lever; and
Claim 10
Dependent Claim
40 words
a first shaft mounted in said housing, the inner races of said first pair of bearings and second bearing being secured to said first shaft; and wherein b. the pivotal connection between said control lever and said magnifying lever comprises
Claim 11
Dependent Claim
40 words
a first shaft mounted in said housing, the inner races of said first pair of bearings and second bearing being secured to said first shaft; and wherein b. the pivotal connection between said control lever and said magnifying lever comprises
Claim 12
Dependent Claim
26 words
a magnifying lever having upper and lower ends, the upper end of said magnifying lever being pivotally connected to the lower arm of said bellcrank lever;
Claim 13
Dependent Claim
26 words
a magnifying lever having upper and lower ends, the upper end of said magnifying lever being pivotally connected to the lower arm of said bellcrank lever;
Claim 14
Dependent Claim
25 words
a second shaft mounted in said housing, the inner races of said third bearings and fourth pair of bearings being secured to said second shaft.
Claim 15
Dependent Claim
25 words
a second shaft mounted in said housing, the inner races of said third bearings and fourth pair of bearings being secured to said second shaft.
Claim 16
Dependent Claim
16 words
Apparatus as claimed in claim 2 further including means for rotating said first and second shafts.
Claim 17
Dependent Claim
47 words
Apparatus as claimed in claim 3 in which said means for rotating said first and second shafts comprises a one-way clutch transmission from one of said levers to said first shaft to rotate said first shaft only in a single predetermined direction on movement of said levers.
Claim 18
Dependent Claim
225 words
a control lever having one end pivotally mounted within said housing and the other end pivotally connected to said magnifying lever adjacent the upper end of said magnifying lever, said lever means being operable by movement of said one of said elements to produce a corresponding magnified movement at the lower end of said magnifying lever; e. valve means coupled to the lower end of said magnifying lever responsive solely to said magnified movement and movable thereby from an initial setting related to the normal thickness of the sliver; f. a fluid-operated motor, flow of fluid to which is controlled by said valve means, the direction of flow being dependent on the sense of movement of said valve means from said initial setting and the rate of flow varying continuously with the distance of movement of said valve means from said initial setting; and g. variator control means having an input shaft coupled to the drive mechanism of said carding machine and an output shaft coupled to said separately driven feed drive, said variator control means being further coupled to said fluid operated motor to vary its output speed and thereby cause correction of the sliver size at a rate and in a direction dependent on the rate and direction of flow of said fluid and independently of the position of said variator control means.
Claim 19
Dependent Claim
225 words
a control lever having one end pivotally mounted within said housing and the other end pivotally connected to said magnifying lever adjacent the upper end of said magnifying lever, said lever means being operable by movement of said one of said elements to produce a corresponding magnified movement at the lower end of said magnifying lever; e. valve means coupled to the lower end of said magnifying lever responsive solely to said magnified movement and movable thereby from an initial setting related to the normal thickness of the sliver; f. a fluid-operated motor, flow of fluid to which is controlled by said valve means, the direction of flow being dependent on the sense of movement of said valve means from said initial setting and the rate of flow varying continuously with the distance of movement of said valve means from said initial setting; and g. variator control means having an input shaft coupled to the drive mechanism of said carding machine and an output shaft coupled to said separately driven feed drive, said variator control means being further coupled to said fluid operated motor to vary its output speed and thereby cause correction of the sliver size at a rate and in a direction dependent on the rate and direction of flow of said fluid and independently of the position of said variator control means.
Claim 20
Dependent Claim
15 words
Apparatus as claimed in claim 1 wherein said sensing elements comprise a pair of rollers.
Claim 21
Dependent Claim
29 words
Apparatus as claimed in claim 1 wherein said variator control means further comprises a variable speed drive transmission between said input and output shafts and controlled by said motor.
Claim 22
Dependent Claim
24 words
Apparatus as claimed in claim 6 wherein said transmission is a variable belt and cone transmission, and said motor operates to move said belt.
Claim 23
Dependent Claim
23 words
Apparatus as claimed in claim 1 wherein said pivotal mounting for said bellcrank lever comprises a first shaft journaled eccentrically in said housing.
Claim 24
Dependent Claim
20 words
Apparatus as claimed in claim 1 wherein said means pivotally mounting said control lever in said housing includes an eccentric.
Claim 25
Dependent Claim
28 words
Apparatus as claimed in claim 1 further comprising biasing means acting on said magnifying lever and said bellcrank lever in a direction to press said sensing rollers together.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-02-28 | 1975-08-30 | 1976-02-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-28 | 1979-08-30 | 1980-02-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-28 | 1983-08-30 | 1984-02-29 | $7700.00 | Window Closed / Lapsed |