US2667052A - Thread feeder for knitting and hosiery machines - Google Patents
Thread feeder for knitting and hosiery machines Download PDFInfo
- Publication number
- US2667052A US2667052A US160851A US16085150A US2667052A US 2667052 A US2667052 A US 2667052A US 160851 A US160851 A US 160851A US 16085150 A US16085150 A US 16085150A US 2667052 A US2667052 A US 2667052A
- Authority
- US
- United States
- Prior art keywords
- thread
- yarn
- drum
- knitting
- turns
- 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 - Lifetime
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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
- D04B15/38—Devices for supplying, feeding, or guiding threads to needles
- D04B15/48—Thread-feeding devices
-
- 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
- D04B15/38—Devices for supplying, feeding, or guiding threads to needles
Definitions
- Its object is a new self-regulating thread feeder whereby the thread is delivered under a practically constant tension irrespective of the rate at which the thread is delivered and of the variations in the tension of the thread as it leaves the pay-off bobbin.
- My device is characterized thereby that it com prises a rotary member by means of which the thread is moved along simply by friction, the said member being rotated at such a speed that at all points of its periphery its circumferential speed is higher than the rate at which the thread is consumed by the machine.
- the shape of the rotary member is that of a frustum of a cone about which the thread winds as a helix from the larger to the smaller end of said cone.
- a stationary friction member is arranged opposite the skirt of the rotary member for the purpose of preventing the turns of thread wound about it from getting entangled with one another.
- Figure 1 is an elevational view showing how the thread is moved along between the pay-off bobbin and the yarn carrier.
- Figure 2 is a sectional view taken on line II-II in Fig. 1.
- the thread that comes from the pay-off" bobbin passes through the guide eye l after which it winds spirally on the smooth surface of a tapered rotary drum 2 driven at a constant and predetermined angular speed.
- the distance between the stationary guide eye I and the drum 2 is suiiicient to limit the different turns of yarn on the drum to take the equilibrated positions corresponding to the various take-up speeds of the machine.
- a pinion 4 is provided which meshes with the teeth of a spur ring 3; the drum 2 may be driven by the machine itself or by any other extraneous hprime mover.
- the peripheral speed of this latter measured at the very point where the thread leaves the drum, should be higher than the rate at which the thread is taken up by the machine.
- the device thus behaves like a capstan, with the difference that the drum is a surface of revolution the diameter of which varies along its axis, whereby owing to the action of the brush 5, automatic separation of the turns of the thread coiled about the drum is ensured.
- a stop-motion may be provided either ahead of or below the thread-feeding drum.
- a further advantage of such an arrangement is that the thread turns wrapped around the drum can find from themselves a suitable equilibrated position.
- Fig. 2 more clearly shows the position of the brush 5 on the surface of the drum 2.
- the thread-feedall times to nd their most favorable position.
- the yarnsuppliedeto the machine being Wound over said even surfaceof the tapered member in several helical turns from the broader to the narrower end of said taperedevmember, means to drive said member-at an angu.
- a self-regulating device for the. delivery of. yarn under a practically constant tension .to knitl ting and hosiery 1nachines' which comprises a rotary tapered member having an even peripheral surface of revolution, the yarn supplied to the machine being Wound over said even surface of the ⁇ tapered member in several helical turns from ,the
- a self-regulating devicefor'the delivery of yarn under a practically constant-tension to knitting and hosiery machines which comprises a rotary tapered member-having an even peripheral surface of revolution, the yarnfsuppliedtorthe;
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Knitting Machines (AREA)
Description
Jan. 26, 1954 B. J. E. I EBOCEY 2,667,052
THREAD FEEDER FOR KNITTING AND HOSIERY MACHINES Filed May 9, 1950 Patented Jan. 26, 1954 THREAD FEEDER FOR KNITTIN G AND HOSIERY MACHINES Bernard Jules Ernest Lebocey, Troyes, France, assignor to Societe a Responsabilite Limitee su-called: Lebocey Machines, Troyes, France Application May 9, 1950, Serial No. 160,851 Claims priority, application France June Z, 1949 4 Claims. (Cl. (i6-132) My invention concerns the supply of the yarn to knitting and hosiery machines.
Its object is a new self-regulating thread feeder whereby the thread is delivered under a practically constant tension irrespective of the rate at which the thread is delivered and of the variations in the tension of the thread as it leaves the pay-off bobbin.
My device is characterized thereby that it com prises a rotary member by means of which the thread is moved along simply by friction, the said member being rotated at such a speed that at all points of its periphery its circumferential speed is higher than the rate at which the thread is consumed by the machine.
Preferably, the shape of the rotary member is that of a frustum of a cone about which the thread winds as a helix from the larger to the smaller end of said cone.
Preferably, a stationary friction member is arranged opposite the skirt of the rotary member for the purpose of preventing the turns of thread wound about it from getting entangled with one another.
A specific embodiment of my invention is shown merely by way of example in the drawing appended hereto.
Figure 1 is an elevational view showing how the thread is moved along between the pay-off bobbin and the yarn carrier.
Figure 2 is a sectional view taken on line II-II in Fig. 1.
According to my invention, the thread that comes from the pay-off" bobbin passes through the guide eye l after which it winds spirally on the smooth surface of a tapered rotary drum 2 driven at a constant and predetermined angular speed. The distance between the stationary guide eye I and the drum 2 is suiiicient to limit the different turns of yarn on the drum to take the equilibrated positions corresponding to the various take-up speeds of the machine. For that purpose a pinion 4 is provided which meshes with the teeth of a spur ring 3; the drum 2 may be driven by the machine itself or by any other extraneous hprime mover.
In order to make sure that the thread may be properly moved along the drum, it is advisable that the peripheral speed of this latter, measured at the very point where the thread leaves the drum, should be higher than the rate at which the thread is taken up by the machine.
Effectively, with this condition fulfilled, all the points on the surface of the drum rotate at a speed which is higher than the travelling speed of the thread, with the result that an almost negligible pull exerted on the leading end of the thread is suiicient to create adhesion of the same on the drum and consequently to cause the latter to carry along the former. Upon the pull on the thread becoming null the latter will no longer adhere to the drum and no feeding action of the latter upon the former will occur. In steady working conditions, no thread-feeding and nonfeeding actions will be exerted by the surface of the drum; instead, intermediate conditions will be obtained in which the thread slips permanently on the drum while the pull on the delivery end of it remains constant.
The device thus behaves like a capstan, with the difference that the drum is a surface of revolution the diameter of which varies along its axis, whereby owing to the action of the brush 5, automatic separation of the turns of the thread coiled about the drum is ensured.
As the thread leaves the drum it is delivered to the knitting machine; if necessary, a stop-motion may be provided either ahead of or below the thread-feeding drum.
It must be moreover pointed out that the frictional action exerted by the brush upon the thread or yarn turns results in a braking action upon the thread or yarn. This braking action facilitates the turns to loosen from the tapered surface of the rotary drum whenever the rate at which the thread or yarn is taken up by the knitting machine happens to decrease or whenever the machine suddenly ceases to take up the thread or yarn. This results in practically preventing the turns of thread or yarn from entangling with one another.
A further advantage of such an arrangement is that the thread turns wrapped around the drum can find from themselves a suitable equilibrated position.
Besides, it must be pointed out that the braking action from the brush upon the yarn is of a nature to create a sort of backwards repulsion upon the thread turns, which very usefully helps these ones to get loose as soon as the yarn absorption ceases or decreases, in consequence of what it results that any risk of entangling will be practically prevented.
Fig. 2 more clearly shows the position of the brush 5 on the surface of the drum 2.
In a preferred embodiment, the thread-feedall times to nd their most favorable position.
surface of revolution, the yarnsuppliedeto the machine being Wound over said even surfaceof the tapered member in several helical turns from the broader to the narrower end of said taperedevmember, means to drive said member-at an angu.
lar speed at which the peripheral Speeder, all.'v
points of said surface is higher than the maximum rate at which the yarn may -bevtakenup by the machine, and a stationaryv member slight frictional engagement with at least someof said helical turns wound around'the rotary mem.-
ber, thereby exerting a continuous braking action upon said turns and facilitating these lattertoA f loosen from the surface of the rotaryfmember s whenever the speed at which the yarn is taken up by the machine happensto decrease. ,Y
2. A self-regulating device for the. delivery of. yarn under a practically constant tension .to knitl ting and hosiery 1nachines'which comprises a rotary tapered member having an even peripheral surface of revolution, the yarn supplied to the machine being Wound over said even surface of the` tapered member in several helical turns from ,the
broader to the-narrower end of said taperedmember, means to drive said member at an angular speed at which the peripheral speed of allpoints of said surface is higher than the maximum rate at which the yarn maybe taken upby the machine, and a stationary frictional member inengagement with at least some of said helical turns wound around the rotary member, said stationary rictional member being rough-enough to exert a continuous andslightbraking actionupon saidY turns and smooth enough to permit a free axial displacement of said turnsalong the even surface. of the rotary member.
3. A self-regulating devicefor'the delivery of yarn under a practically constant-tension to knitting and hosiery machines, which comprises a rotary tapered member-having an even peripheral surface of revolution, the yarnfsuppliedtorthe;
machine being wound over said even-V surface of;- the tapered member in several helical turns-from-V member, means to'drive'said member at an angular speed at which-1 the ,peripheral speedi ofY ,all
the broader to the narrower end of said tapered' yarn under a practically constant tension to knittingand hosiery machines, which comprises a rotarytapered member having an even peripheral surface of revolution, the yarn supplied to the machine-.being'lwound over said even surface of the taperedmemberzinfseveral helical turns from the broader to the narrower end of said tapered member, means to drive said member at an angular speed at which the peripheral speed of all points ofitssurface is higher than the maximum rate at `which the yarn may be taken up by the machine, a stationary member in slight frictional engagement with at least some of said helical turns wound around the rotary member, thereby exerting a continuous braking action upon said' chine happens to decrease, and stationary guiding-means for guiding the yarn towards the broader end of said tapered member, thedistance between said stationary guiding means and said tapered member being `sunicientto allow the dif-,1'
ferent turns of yarn on the rotary member to take the various equilibrated positions corresponding to the Various take-up speeds of the machine.
BERNARD JULES ERNESTTLEBOCEY;`
Referencesv Cited in the le' of'this patent UNITED STATESPATENTS Niunber Name Date 1,579,572. Stoneet als: Apr. 6, 1926 2,109,863 Lawson Marrl, 1938 2,135,756 Lawson Nov. 8, 1938 2,343,659 Gerson Mar. 7, 1944 2,399,403 St. Pierre Apr. 30; 1946 2,537,000 Stibbe Jan. 2, 1951 2,539,527' St; Pierre Jan. 30,v 1951= 2,542,816 Kent Feb. 20, 1951'- FOREIGN' PATENTSv Number Country Date 964,455 France Jan-25, 1950
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR289657X | 1949-06-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
US2667052A true US2667052A (en) | 1954-01-26 |
Family
ID=8887586
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US160851A Expired - Lifetime US2667052A (en) | 1949-06-02 | 1950-05-09 | Thread feeder for knitting and hosiery machines |
Country Status (4)
Country | Link |
---|---|
US (1) | US2667052A (en) |
CH (1) | CH289657A (en) |
DE (1) | DE910712C (en) |
GB (1) | GB677187A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2949756A (en) * | 1957-05-08 | 1960-08-23 | Scott & Williams Inc | Yarn furnisher for knitting machines |
US3083924A (en) * | 1959-09-11 | 1963-04-02 | Textile Devices Corp | Yarn furnishing device |
US3923262A (en) * | 1972-12-22 | 1975-12-02 | Rueti Te Strake Bv | Yarn pulling device |
US4095731A (en) * | 1977-02-04 | 1978-06-20 | The Goodyear Tire & Rubber Company | Guiding narrow strip |
US4784344A (en) * | 1986-01-30 | 1988-11-15 | Barmag Ag | Yarn withdrawal apparatus and method |
US4817880A (en) * | 1986-04-17 | 1989-04-04 | Barmag Ag | Yarn withdrawal appratus and method |
US4880177A (en) * | 1987-11-07 | 1989-11-14 | Barmag, Ag | Yarn withdrawal apparatus |
US4890800A (en) * | 1987-07-30 | 1990-01-02 | Barmag, Ag | Yarn withdrawal apparatus and method |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1585138B1 (en) * | 1965-12-02 | 1971-06-24 | Emil Krenzler Maschf | Circular knitting machine for the production of textured yarn |
DE1288229C2 (en) * | 1968-06-15 | 1979-04-12 | Memminger Gmbh, 7290 Freudenstadt | THREAD DELIVERY DEVICE ON CIRCULAR KNITTING MACHINES |
DE19538135A1 (en) * | 1995-10-13 | 1997-04-17 | Terrot Strickmaschinen Gmbh | Thread device for textile machines |
AU2001246379A1 (en) * | 2000-03-20 | 2001-10-03 | Memminger-Iro Gmbh | Thread feeding device for a knitting machine or a knitting frame or a yarn production machine and a knitting machine or a knitting frame |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1579572A (en) * | 1925-09-04 | 1926-04-06 | William H Putnam | Shuttle |
US2109863A (en) * | 1936-02-18 | 1938-03-01 | Hemphill Co | Yarn feeding device |
US2135756A (en) * | 1935-10-11 | 1938-11-08 | Hemphill Co | Yarn feeding means for knitting machines |
US2343659A (en) * | 1942-12-07 | 1944-03-07 | Gerson Seymour | Lining for textile shuttles |
US2399403A (en) * | 1944-08-05 | 1946-04-30 | Hemphill Co | Yarn feeding device |
FR964455A (en) * | 1950-08-17 | |||
US2537000A (en) * | 1948-08-05 | 1951-01-02 | Stibbe G & Co Ltd | Yarn feeding mechanism for knitting machines |
US2539527A (en) * | 1947-11-28 | 1951-01-30 | Hemphill Co | Yarn feeding device |
US2542816A (en) * | 1946-06-20 | 1951-02-20 | Bentley Eng Co Ltd | Knitting machine |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE396086C (en) * | 1922-07-28 | 1924-05-24 | John Snelgrow Bachman | Twisting device |
US1594958A (en) * | 1923-03-09 | 1926-08-03 | Wildman Mfg Co | Method, apparatus, and product of knitting |
DE395026C (en) * | 1923-06-08 | 1924-05-09 | Otto Albin Werner | Bobbin holder |
BE410810A (en) * | 1934-08-28 | |||
DE669280C (en) * | 1937-02-19 | 1938-12-22 | Einsiedel G M B H Maschf | Circular knitting machine with a device for cutting and clamping the reinforcement thread |
US2199263A (en) * | 1938-08-19 | 1940-04-30 | Scott & Williams Inc | Strand-feeding device for knitting and like machines |
US2366101A (en) * | 1943-08-18 | 1944-12-26 | Scott & Williams Inc | Yarn holding means |
-
1950
- 1950-04-24 CH CH289657D patent/CH289657A/en unknown
- 1950-04-24 GB GB10041/50A patent/GB677187A/en not_active Expired
- 1950-04-28 DE DES2977A patent/DE910712C/en not_active Expired
- 1950-05-09 US US160851A patent/US2667052A/en not_active Expired - Lifetime
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR964455A (en) * | 1950-08-17 | |||
US1579572A (en) * | 1925-09-04 | 1926-04-06 | William H Putnam | Shuttle |
US2135756A (en) * | 1935-10-11 | 1938-11-08 | Hemphill Co | Yarn feeding means for knitting machines |
US2109863A (en) * | 1936-02-18 | 1938-03-01 | Hemphill Co | Yarn feeding device |
US2343659A (en) * | 1942-12-07 | 1944-03-07 | Gerson Seymour | Lining for textile shuttles |
US2399403A (en) * | 1944-08-05 | 1946-04-30 | Hemphill Co | Yarn feeding device |
US2542816A (en) * | 1946-06-20 | 1951-02-20 | Bentley Eng Co Ltd | Knitting machine |
US2539527A (en) * | 1947-11-28 | 1951-01-30 | Hemphill Co | Yarn feeding device |
US2537000A (en) * | 1948-08-05 | 1951-01-02 | Stibbe G & Co Ltd | Yarn feeding mechanism for knitting machines |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2949756A (en) * | 1957-05-08 | 1960-08-23 | Scott & Williams Inc | Yarn furnisher for knitting machines |
US3083924A (en) * | 1959-09-11 | 1963-04-02 | Textile Devices Corp | Yarn furnishing device |
US3923262A (en) * | 1972-12-22 | 1975-12-02 | Rueti Te Strake Bv | Yarn pulling device |
US4095731A (en) * | 1977-02-04 | 1978-06-20 | The Goodyear Tire & Rubber Company | Guiding narrow strip |
US4784344A (en) * | 1986-01-30 | 1988-11-15 | Barmag Ag | Yarn withdrawal apparatus and method |
US4817880A (en) * | 1986-04-17 | 1989-04-04 | Barmag Ag | Yarn withdrawal appratus and method |
US4890800A (en) * | 1987-07-30 | 1990-01-02 | Barmag, Ag | Yarn withdrawal apparatus and method |
US4880177A (en) * | 1987-11-07 | 1989-11-14 | Barmag, Ag | Yarn withdrawal apparatus |
Also Published As
Publication number | Publication date |
---|---|
DE910712C (en) | 1954-05-06 |
GB677187A (en) | 1952-08-13 |
CH289657A (en) | 1953-03-31 |
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