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US3786655A Expired / Lapsed US ⏱️ 0.0 years remaining

Control arrangement for a flat knitting machine

Assignee: Henkel Dorus GmbH and Co KG
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Filing: 1971-03-03
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Granted: 1974-01-22
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Expires: 1991-03-03
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Abstract

Abstract A multiplicity of electrically actuated operating elements in a flat knitting machine is controlled by punched cards having only a limited number of tracks and a corresponding reading station in which sensing switches generate control signals in response to card movement. A system of logic elements is arranged in a circuit between the sensing switches and the operating elements in such a manner that control signals generated by the relatively few switches cause an entire group of operating elements, more numerous than the sensing switches, to be actuated either simultaneously or in timed sequence.

Inventors

  • 👤 E Krause

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 15:24
CPC Classifications
D; D04; D04B; D04B15/00; D04B15/66

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 334 words
In a flat knitting machine having a plurality of electrically actuated different operating elements including setting means for setting a needle cam, shifting means for shifting a needle bed, adjusting means for adjusting a yarn guide stop, positioning means for varying the vertical position of a drawing-off comb, reading means, a multiple-track record carrier arranged for movement relative to said reading means, said reading means including a plurality of sensing means respectively associated with the tracks of said record carrier for generating sequential control signals in response to the record of the associated track during said movement, and circuitry connecting said sensing means to said operating elements, the improvement in said circuitry which comprises: a. logic means including a plurality of gate circuits, each gate circuit having a plurality of inputs connected to a group of respective ones of said sensing means different from the group of sensing means connected to each other gate circuit, the number of said gate circuits bieng substantially greater than the number of said sensing means, each sensing means being common to a plurality of said groups; b. first actuating means for simultaneously actuating said shifting means and said adjusting means, said actuating means being connected to the output of a first one of said gate circuits for operation in response to control signals simultaneously generated by the sensing mesns of the group of sensing means associated with said first gate circuit; c. second actuating means for actuating said positioning means, said second actuating means being connected to the output of a second gate circuit for operation in response to control signals simultaneously generated by the sensing means of the group of sensing means associated with said second gate circuit; and d. third actuating means for actuating said setting means, said third actuating means being connected to the output of a third gate circuit for actuation in response to control signals simultaneously generated by the sensing means of the group of sensing means assoCiated with said third gate circuit.
Claim 2
Dependent Claim 334 words
In a flat knitting machine having a plurality of electrically actuated different operating elements including setting means for setting a needle cam, shifting means for shifting a needle bed, adjusting means for adjusting a yarn guide stop, positioning means for varying the vertical position of a drawing-off comb, reading means, a multiple-track record carrier arranged for movement relative to said reading means, said reading means including a plurality of sensing means respectively associated with the tracks of said record carrier for generating sequential control signals in response to the record of the associated track during said movement, and circuitry connecting said sensing means to said operating elements, the improvement in said circuitry which comprises: a. logic means including a plurality of gate circuits, each gate circuit having a plurality of inputs connected to a group of respective ones of said sensing means different from the group of sensing means connected to each other gate circuit, the number of said gate circuits bieng substantially greater than the number of said sensing means, each sensing means being common to a plurality of said groups; b. first actuating means for simultaneously actuating said shifting means and said adjusting means, said actuating means being connected to the output of a first one of said gate circuits for operation in response to control signals simultaneously generated by the sensing mesns of the group of sensing means associated with said first gate circuit; c. second actuating means for actuating said positioning means, said second actuating means being connected to the output of a second gate circuit for operation in response to control signals simultaneously generated by the sensing means of the group of sensing means associated with said second gate circuit; and d. third actuating means for actuating said setting means, said third actuating means being connected to the output of a third gate circuit for actuation in response to control signals simultaneously generated by the sensing means of the group of sensing means assoCiated with said third gate circuit.
Claim 3
Dependent Claim 19 words
In a machine as set forth in claim 1, said record carrier including a chain of connected punched cards.
Claim 4
Dependent Claim 37 words
In a machine as set forth in claim 1, said first actuating means including an amplifier and a relay interposed in series between said first gate circuit and each of said shifting means and said adjusting means.
Claim 5
Dependent Claim 105 words
In a machine as set forth in claim 3, said machine including a carriage moving back and forth between two terminal positions during operation of said machine, and a switch operated by said carriage when said carriage approaches one of said terminal positions, one of said gate circuits having an additional input connected to said switch for receiving a signal therefrom when said switch is operated by said carriage, said one gate circuit having an output connected to one of said actuating means for operating the same in response to signals simultaneously received from said switch and from the associated group of said sensing means.

References Cited (Backward Citations)

DD57673A Cited
US1571765A Cited
US3035426A Cited
US3025444A Cited
US3232079A Cited
US3385245A Cited
FR1499600A Cited
FR1522413A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-01-21 1977-07-23 1978-01-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-01-21 1981-07-23 1982-01-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-01-21 1985-07-23 1986-01-22 $7700.00 Window Closed / Lapsed

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