GB674432A - Improvements relating to circular knitting machines - Google Patents
Improvements relating to circular knitting machinesInfo
- Publication number
- GB674432A GB674432A GB1103/50A GB110350A GB674432A GB 674432 A GB674432 A GB 674432A GB 1103/50 A GB1103/50 A GB 1103/50A GB 110350 A GB110350 A GB 110350A GB 674432 A GB674432 A GB 674432A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cam
- sinkers
- needle cylinder
- ring
- stop
- 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
- D04B9/00—Circular knitting machines with independently-movable needles
- D04B9/42—Circular knitting machines with independently-movable needles specially adapted for producing goods of particular configuration
- D04B9/46—Circular knitting machines with independently-movable needles specially adapted for producing goods of particular configuration stockings, or portions thereof
-
- 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
- D04B15/06—Sinkers
-
- 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
- D04B15/32—Cam systems or assemblies for operating knitting instruments
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Knitting Machines (AREA)
Abstract
674,432. Knitting-machines. SCOTT & WILLIAMS, Inc. Jan. 16, 1950 [Feb. 7, 1949], No. 1103/50. Class 74 (ii). To enable the inward movement of the sinkers S of a circular machine to be adjusted to compensate for the variation in loop length effected by the needles when the needle cylinder 260 or the stitch cam is raised or lowered, thereby maintaining a constant pressure against the stitches throughout the knitting cycle, a sinker stop is provided in the form of a ring 273 disposed within the needle cylinder and having an outturned flange provided with a bevelled edge 272 which is engaged by the sinkers. By raising or lowering the needle cylinder and sinkers relative to the ring 273, or the ring relative to and in conjunction with the needle cylinder or stitch cam the distance which the sinkers can move inwardly is varied since the radial point or edge of abutment of the bevelled edge 272 of the stop ring 273 with the abutting point or edge 293 of the sinkers moves inwardly or outwardly with relative vertical movement between the sinkers and the stop ring. The edge 293 of the sinkers abutting the stop bevel 272 may be correspondingly bevelled. In one arrangement the stop ring 273 is secured against vertical displacement by being attached through a sleeve to the sleeve gear rotating the needle cylinder, the sleeve gear being vertically immovable. The needle cylinder is raised or lowered to effect vertical movement of the sinkers by a lever 281, acted upon by cams 501 ... 504 to vary the length of loop drawn by the needles in the welt, heel and toe of a stocking. Variation in loop length of the leg of the stocking is further effected by a cam 284, acting on a lever 282 extending from the lever 281, which is normally rotated by a lug 286 connected to a shaft 80 engaging a pin 288 on the cam. From the calf to the angle of the stocking it becomes necessary to advance the cam at an increased rate to effect a more pronounced loop variation between the courses. This is attained by a ratchet wheel 285 secured to the cam and rotated by a pawl 73 operated by the quadrant gear. A portion of the ratchet wheel is blank to prevent the pawl from rotating it at this stage and which portion corresponds to the upper portion of the leg of the stocking during which the cam 284 is rotated by the lug 286. Rotation of the cam and ratchet wheel 285 eventually brings the teeth of the wheel into engagement with the continuously operated pawl which then commences to advance the cam at a rate exceeding that advanced by the lug. When the pawl again engages the blank portion of the wheel, the cam remains stationary until the lug is advanced sufficiently to re-engage the pin 288. Alternatively the ring stop 273 may be raised or lowered relatively to the needle cylinder in which case the ring stop is secured to a sleeve slidable within the needle cylinder and raised or lowered by levers operated from a cam drum. The combination of separate means raising and lowering the needle cylinder, the ring stop and the needle cam may be used to obtain a variation in loop length during the knitting of a stocking.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US74868A US2534460A (en) | 1949-02-07 | 1949-02-07 | Sinker control means for circular knitting machines |
Publications (1)
Publication Number | Publication Date |
---|---|
GB674432A true GB674432A (en) | 1952-06-25 |
Family
ID=22122144
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1103/50A Expired GB674432A (en) | 1949-02-07 | 1950-01-16 | Improvements relating to circular knitting machines |
Country Status (2)
Country | Link |
---|---|
US (1) | US2534460A (en) |
GB (1) | GB674432A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3013417A (en) * | 1959-01-13 | 1961-12-19 | Patent Hose Corp | Knitting machine stitch length control |
IT8221815V0 (en) * | 1982-05-10 | 1982-05-10 | Lonati Spa | DEVICE FOR ADJUSTING THE DENSITY OF THE KNIT IN A CIRCULAR MACHINE FOR KNITWEAR, IN PARTICULAR FOR SOCKS. |
IT1158111B (en) * | 1982-05-21 | 1987-02-18 | Savio Spa | IMPROVED CYLINDER WITH ANTI-KIRRING ROTARY GLASS FOR CIRCULAR KNITTING MACHINES |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2056686A (en) * | 1933-04-18 | 1936-10-06 | Mills Robert Kirkland | Production of knitted fabric |
US2063026A (en) * | 1935-05-08 | 1936-12-08 | Standard Trump Bros Machine Co | Knitting method and machine |
US2436904A (en) * | 1945-07-19 | 1948-03-02 | Bear Brand Hoslery Co | Knitting machine |
-
1949
- 1949-02-07 US US74868A patent/US2534460A/en not_active Expired - Lifetime
-
1950
- 1950-01-16 GB GB1103/50A patent/GB674432A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US2534460A (en) | 1950-12-19 |
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