GB1214691A - Improvements in or relating to knitting machines - Google Patents
Improvements in or relating to knitting machinesInfo
- Publication number
- GB1214691A GB1214691A GB60457/68A GB6045768A GB1214691A GB 1214691 A GB1214691 A GB 1214691A GB 60457/68 A GB60457/68 A GB 60457/68A GB 6045768 A GB6045768 A GB 6045768A GB 1214691 A GB1214691 A GB 1214691A
- Authority
- GB
- United Kingdom
- Prior art keywords
- photo
- holes
- selector
- strip
- needles
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
- D04B15/66—Devices for determining or controlling patterns ; Programme-control arrangements
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B35/00—Details of, or auxiliary devices incorporated in, knitting machines, not otherwise provided for
- D04B35/10—Indicating, warning, or safety devices, e.g. stop motions
- D04B35/18—Indicating, warning, or safety devices, e.g. stop motions responsive to breakage, misplacement, or malfunctioning of knitting instruments
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Knitting Machines (AREA)
Abstract
1,214,691. Programme control of textile machines. WILDT MELLOR BROMLEY Ltd. March 27, 1969 [April 5, 1968; Dec.19, 1968], Nos.16558/68 and 60457/68. Heading G3N. [Also in Division D1] A pattern control arrangement for a knitting machine comprises a pattern band and reading means providing pulses, in accordance with information spots on the bands, for moving selectors into butt-engaging position and pulses for moving the selectors out of butt-engaging position when not required. As shown, a pattern strip 12 carries transverse rows of holes, and each hole in a row is sensed by a photo-cell 17 responsive to the passage of a light-beam through a hole from a source 16. The strip is driven through sprocket holes by teeth on a drum driven in synchronism with a needle cylinder 1 of the knitting machine. The drum is longer than the width of the strip and the extension 14a is perforated with staggered rows of holes. The number of holes in each staggered row equals the number of needles in a group and each group of needles is allocated a perforation in a transverse row of holes in the strip. The multiple of the groups and the number of needles in a group is equal to the total number of needles in the cylinder 1. The holes in the drum extension are sensed by photo-cells 17n responsive to a light source 16n. Each photo-cell 17 is connected through a buffer stage 22 to a multiple input of a logic amplifier block 21 associated with a group of needle selectors 10. Each photo-cell 17n is connected through a trigger circuit 18, a monostable pulse generator 19 to a buffer stage 20 having multiple outputs, equal in number to the number of groups, feeding the blocks 21. One logic amplifier block 21 provides a positive-going pulse causing energization of a selector element 10 for rocking a selector 9 into the butt-engaging position, when pulses derived from photo-cells 17, 17n occur simultaneously and a negative-going pulse, causing retraction of a selector, when there is no pulse from 17 due to the absence of a programmed hole. By this means the selector elements 10 are cyclically pulsed. Each selector element 10 rocks a selector 9 cooperating with a selecting butt 8, on one of six levels, for a rocking presser 7 associated with a jack 4 for moving a needle 2 by a lifting cam 5. The light from each source 16, 16a is monitored by a photo-electric cell 17d and upon failure or incipient failure, a regulator 25 emits an alarm signal or switches off the machine. It is stated that the punched strip can be replaced by a magnetic tape which actuates reed switches.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE731113D BE731113A (en) | 1968-04-05 | 1969-04-04 | |
CS245669A CS168510B2 (en) | 1968-04-05 | 1969-04-04 | |
FR6910409A FR2005647A1 (en) | 1968-04-05 | 1969-04-04 | Device for controlling the design in a knitting machine |
CH516169A CH514012A (en) | 1968-04-05 | 1969-04-05 | Device for the pattern control of a knitting or knitting machine |
DE19691917574 DE1917574A1 (en) | 1968-04-05 | 1969-04-05 | Knitting machine |
US05/176,166 US4004439A (en) | 1968-04-05 | 1971-08-30 | Pattern mechanism |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1655868 | 1968-04-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1214691A true GB1214691A (en) | 1970-12-02 |
Family
ID=10079485
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB60457/68A Expired GB1214691A (en) | 1968-04-05 | 1968-04-05 | Improvements in or relating to knitting machines |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1214691A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3972207A (en) * | 1974-11-04 | 1976-08-03 | Vinatex Knitting Systems, Inc. | Selection device for the needles of a knitting machine |
US3972208A (en) * | 1973-12-20 | 1976-08-03 | Wildt Mellor Bromley Limited | Patterning control arrangements for knitting machines |
-
1968
- 1968-04-05 GB GB60457/68A patent/GB1214691A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3972208A (en) * | 1973-12-20 | 1976-08-03 | Wildt Mellor Bromley Limited | Patterning control arrangements for knitting machines |
US3972207A (en) * | 1974-11-04 | 1976-08-03 | Vinatex Knitting Systems, Inc. | Selection device for the needles of a knitting machine |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |