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US4525787A
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Program automaton for weaving machines
Assignee: CENTRALEN SAVET NA NAUCHNOTECHNICHESKI
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Filing: 1982-09-17
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Granted: 1985-06-25
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Expires: 2002-09-17
Abstract
Abstract There is provided a program automaton for a weaving machine that includes means for effecting deweaving when there is more than one color in the repeat. The invention includes programmable counter means and a counter-switch. On deweaving, the counter means is decremented until it reaches zero. The counter-switch is then decremented one position while the counter means is reset and rapidly decremented to the programmed limit for the preceeding color in the repeat.
Inventors
- 👤 Krum K. Tzvetkov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:15
CPC Classifications
D; D03; D03D; D03D51/00; D03D51/06; D03D51/08
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
223 words
A program automaton for a weaving machine having a transducer coupled to a crankshaft therein, a block for weft programming coupled to said transducer, a block for subroutines coupled in a feedback loop with said block for weft programming, a block of selective electromagnets coupled to said block for weft programming for alternatively selecting a color band, a block for weave programming also coupled to said transducer, an electronic keys block coupled to said block for weave programming, a control block coupled to both said transducer and said electronic keys block for controlling weaving electromagnets, and a block for deweaving of complex programs incorporated in said blocks for weft programming and subroutines, characterized in that said block for deweaving at complex programs comprises: means for indicating the reversal of said weaving machine; a first AND-gate coupled to said indicating means; a counter-switch having an addition and subtraction input, the output of said first AND-gate being coupled to said subtraction input; a high-frequency pulse generator; a second AND-gate coupled to the output of said high-frequency pulse generator and also to said first AND-gate; and counter means also having an addition and a subtraction input, said second AND-gate being coupled through an OR-gate to said subtraction input, said transducer also being coupled to said OR-gate, said counter means having outputs coupled to said first AND-gate.
Claim 2
Dependent Claim
223 words
A program automaton for a weaving machine having a transducer coupled to a crankshaft therein, a block for weft programming coupled to said transducer, a block for subroutines coupled in a feedback loop with said block for weft programming, a block of selective electromagnets coupled to said block for weft programming for alternatively selecting a color band, a block for weave programming also coupled to said transducer, an electronic keys block coupled to said block for weave programming, a control block coupled to both said transducer and said electronic keys block for controlling weaving electromagnets, and a block for deweaving of complex programs incorporated in said blocks for weft programming and subroutines, characterized in that said block for deweaving at complex programs comprises: means for indicating the reversal of said weaving machine; a first AND-gate coupled to said indicating means; a counter-switch having an addition and subtraction input, the output of said first AND-gate being coupled to said subtraction input; a high-frequency pulse generator; a second AND-gate coupled to the output of said high-frequency pulse generator and also to said first AND-gate; and counter means also having an addition and a subtraction input, said second AND-gate being coupled through an OR-gate to said subtraction input, said transducer also being coupled to said OR-gate, said counter means having outputs coupled to said first AND-gate.
Claim 3
Dependent Claim
26 words
A program automaton as set forth in claim 1, characterized in that said counter means comprises counters for units and tens, followed by respective decimal decoders.
Claim 4
Dependent Claim
30 words
A program automaton as set forth in claim 1 or 2, which further comprises a flip-flop coupling the output of said first AND-gate to the input of said second AND-gate.
Claim 5
Dependent Claim
35 words
A program automaton as claimed in claim 3, which further comprises AND-gate means, having inputs coupled to the outputs of said counter means and said counter-switch, for supplying a reset pulse to said counter means.
Claim 6
Dependent Claim
28 words
A program automaton as claimed in claim 4, characterized in that said flip-flop further comprises a second input to which the output of said AND-gate means is applied.
Claim 7
Dependent Claim
40 words
A program automaton as claimed in claim 5, characterized in that said transducer is coupled to said OR-gate through a third AND-gate controlled by said flip-flop to be open and closed when said first AND-gate is closed or open, respectively.
References Cited (Backward Citations)
US3674991A
Cited
US4398568A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-06-24 | 1988-12-24 | 1989-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-06-24 | 1992-12-24 | 1993-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-06-24 | 1996-12-24 | 1997-06-25 | $7700.00 | Window Closed / Lapsed |