GB658314A - Improvements in warp knitting machines - Google Patents
Improvements in warp knitting machinesInfo
- Publication number
- GB658314A GB658314A GB8209/49A GB820949A GB658314A GB 658314 A GB658314 A GB 658314A GB 8209/49 A GB8209/49 A GB 8209/49A GB 820949 A GB820949 A GB 820949A GB 658314 A GB658314 A GB 658314A
- Authority
- GB
- United Kingdom
- Prior art keywords
- motor
- speed
- tension
- opening
- causes
- 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
- D04B27/00—Details of, or auxiliary devices incorporated in, warp knitting machines, restricted to machines of this kind
- D04B27/10—Devices for supplying, feeding, or guiding threads to needles
- D04B27/16—Warp beams; Bearings therefor
- D04B27/20—Warp beam driving devices
- D04B27/22—Warp beam driving devices electrically controlled
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Knitting Machines (AREA)
Abstract
658,314. Control of motors. BRITISH CELANESE, Ltd. March 25, 1949. No. 8209. Convention date, March 25, 1948. [Class 38(iii)] [Also in Group VIII] The speed of motors permitting rotation of warp beams by thread tension in a knitting machine is controlled by the tension in the threads varying an iron cored reactance in circuit with each motor. Increased tension) causes the movable arm. of the reactance 85 to move and trigger a gas filled tetrode 84 causing changes in phase relationship between grid and anode potential of rectifying valves 66, 67 supplying direct current to the motor 39. The motor 39 is normally driven at constant speed by applied voltages emanating from networks 74, 76, the latter being adjustable by a potentiometer 79 to adjust the normal running speed The changes described above cause additional increments of voltage to be applied to the motor to increase its speed. Excessive tension causes opening of a switch 142 whereby alternating current to the machine driving motor 17 is cut off. Excessive slackness causes opening of a switch 123, de-energizing of a relay 51, opening of switches 52, 53 and reduction of current and motor speed.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US658314XA | 1948-03-25 | 1948-03-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB658314A true GB658314A (en) | 1951-10-03 |
Family
ID=22065396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8209/49A Expired GB658314A (en) | 1948-03-25 | 1949-03-25 | Improvements in warp knitting machines |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB658314A (en) |
-
1949
- 1949-03-25 GB GB8209/49A patent/GB658314A/en not_active Expired
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