US3727033A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Yarn measuring apparatus for use with warp knitting machines
Assignee: TRAVIS MILLS CORP
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Filing: 1971-02-12
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Granted: 1973-04-10
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Expires: 1991-02-12
Abstract
Abstract An apparatus including a machine cycle counter and at least one impulse counter operable only concomitantly with the cycle counter. A yarn measuring device is responsive to rotation of the warp beam for providing pulses, the number of pulses being proportional to the linear amount of yarn drawn from the warp beam. Another impulse counter is operable independently of the cycle counter and also receives pulses from the yarn measuring apparatus. The yarn measuring apparatus may include a roller engaging and rotatable by the warp beam, the roller carrying at least one magnet. A magnetically operable switch adjacent to the circular path through which the magnet travels is operated each time the magnet passes it so as to produce a pulse. Alternatively, the roller may include a light source for energizing a light-sensitive detector each time the light source passes it, so as to produce a pulse.
Inventors
- 👤 R Bassist
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:04
CPC Classifications
G; G06; G06M; G06M1/00; G06M1/08; G06M1/10; G06M1/101; D; D04; D04B; D04B35/00; D04B35/10
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
251 words
A yarn measuring apparatus for use with a knitting machine having a warp beam, comprising: a. counting means for counting a predetermined number of repetitive cycles of said machine, b. at least two impulse counters, c. a yarn measuring device for providing at least two series of pulses to said counters, said device including roller means engaging and rotatable by the warp beam, and cooperable means carried by said roller means and located adjacent to said roller means for producing the two series of pulses in response to rotation of the warp beam, the number of pulses produced being proportional to the linear amount of yarn drawn from the warp beam, d. means for resiliently urging said roller means against the warp beam to insure continued engagement between the two as the yarn wound on the warp beam is depleted, e. means for conditioning one of the impulse counters to receive a series of said pulses concomitantly with the operation of said cycle counter means (a), said pulses being counted by said one of the impulse counters to indicate the linear amount of yarn fed from the warp beam during a predetermined number of machine cycles, and f. means for conditioning another of the impulse counters to receive another series of said pulses throughout the time during which the warp beam rotates, the pulses in said other series of pulses being counted by said other of the impulse counters to indicate the linear amount of yarn fed from the warp beam.
Claim 2
Dependent Claim
251 words
A yarn measuring apparatus for use with a knitting machine having a warp beam, comprising: a. counting means for counting a predetermined number of repetitive cycles of said machine, b. at least two impulse counters, c. a yarn measuring device for providing at least two series of pulses to said counters, said device including roller means engaging and rotatable by the warp beam, and cooperable means carried by said roller means and located adjacent to said roller means for producing the two series of pulses in response to rotation of the warp beam, the number of pulses produced being proportional to the linear amount of yarn drawn from the warp beam, d. means for resiliently urging said roller means against the warp beam to insure continued engagement between the two as the yarn wound on the warp beam is depleted, e. means for conditioning one of the impulse counters to receive a series of said pulses concomitantly with the operation of said cycle counter means (a), said pulses being counted by said one of the impulse counters to indicate the linear amount of yarn fed from the warp beam during a predetermined number of machine cycles, and f. means for conditioning another of the impulse counters to receive another series of said pulses throughout the time during which the warp beam rotates, the pulses in said other series of pulses being counted by said other of the impulse counters to indicate the linear amount of yarn fed from the warp beam.
Claim 3
Dependent Claim
70 words
A yarn measuring apparatus as defined in claim 1, wherein said cooperable means comprise: at least one magnet carried by said roller means in a position radially spaced from the axis of rotation of said roller means, and a magnetically operable switch adjacent to the circular path through which said magnet travels, said switch being operated each time said magnet passes it so as to produce one of said pulses.
Claim 4
Dependent Claim
48 words
A yarn measuring apparatus as defined in claim 2 including a plurality of magnets carried by said roller means, all said magnets being equidistantly spaced from the roller axis of rotation, and each of said magnets being equidistantly angularly spaced from the magnets immediately preceding and succeeding it
Claim 5
Dependent Claim
70 words
A yarn measuring apparatus as defined in claim 1 wherein said cycle counter means (a) and said at least two impulse counters (b) are electrically operable, and including a source of potential and switch means controlled by said cycle counter means and connected between said source of potential and said one of the impulse counters, whereby said one of the impulse counters operates only during operation of said revolution counter.
Claim 6
Dependent Claim
86 words
A yarn measuring apparatus as defined in claim 1 wherein said yarn measuring device comprises roller means engaging and rotatable by the warp beam, at least two magnets carried by said roller means, and two magnetically operable switches, each of said switches being adjacent to the circular path through which one of said magnets travels and being operated each time its respective magnet passes it so as to produce one of said series of pulses, and each of said switches producing a separate series of pulses.
Claim 7
Dependent Claim
70 words
A yarn measuring apparatus as defined in claim 1, wherein said cooperable means comprise: at least one light source movable with said roller means and radially spaced from the axis of rotation of said roller means, and a light-responsive device adjacent to the circular path through which said light source travels, said device being energized each time said light source passes it so as to produce one of said pulses.
Claim 8
Dependent Claim
49 words
A yarn measuring apparatus as defined in claim 6 including a plurality of light sources movable with said roller means, all said sources being equidistantly spaced from the roller axis of rotation, and each of said sources being equidistantly angularly spaced from the sources immediately preceding and succeeding it.
Claim 9
Dependent Claim
86 words
A yarn measuring apparatus as defined in claim 1 wherein said yarn measuring device comprises roller means engaging and rotatable by the warp beam, at least two light sources carried by said roller means, and two light-responsive devices, each of said devices being adjacent to the circular path through which one of said sources travels and being operated each time its respective source passes it so as to produce one of said series of pulses, and each of said devices producing a separate series of pulses.
Claim 10
Dependent Claim
39 words
A yarn measuring apparatus as defined in claim 1 wherein said other of the impulse counters receives a series of said pulses independently of said means (d) and hence independently of the operation of said cycle counter means (a).
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) | 1976-04-09 | 1976-10-09 | 1977-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-09 | 1980-10-09 | 1981-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-09 | 1984-10-09 | 1985-04-10 | $7700.00 | Window Closed / Lapsed |