US1562829A - Yarn-furnishing mechanism for knitting machines - Google Patents

Yarn-furnishing mechanism for knitting machines Download PDF

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Publication number
US1562829A
US1562829A US553461A US55346122A US1562829A US 1562829 A US1562829 A US 1562829A US 553461 A US553461 A US 553461A US 55346122 A US55346122 A US 55346122A US 1562829 A US1562829 A US 1562829A
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US
United States
Prior art keywords
yarn
wheels
guide
furnishing
tension
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
Application number
US553461A
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English (en)
Inventor
Howie Kenneth
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wildman Manufacturing Co
Original Assignee
Wildman Manufacturing Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Wildman Manufacturing Co filed Critical Wildman Manufacturing Co
Priority to US553461A priority Critical patent/US1562829A/en
Priority to GB7932/23A priority patent/GB196262A/en
Priority to DEW63516D priority patent/DE435367C/de
Application granted granted Critical
Publication of US1562829A publication Critical patent/US1562829A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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

Definitions

  • One object of the invention is to provide means for furnishing yarn to the needles of a knitting machine at a uniform tension, capable of adjustment to the degree desired.
  • Figure 1 is a side elevation of the appliance.
  • Fig. 2 is a sectional plan view of the yarn furnishing wheels.
  • Fig. 3 is a front view of the appliance.
  • Fig. 4 is a detail view of a yarn sweep or take-up device.
  • the yarn is shown at a: coming from an overhead guide ordirectly from an overhead bobbin. It passes through a shiftable guide eye 1 carried by a freely oscillatory member. 2 journalled on a pin 3 extending from a bracket 4 secured to the head or fixed frame member A.
  • This wheel 6 drives the wheel 5 by the intermeshing teeth of the two wheels.
  • These wheels are of frusto-conical form, being of greatest diameter at their inner ends, or their ends nearest to the supporting head. These wheelsn'easure off the yarn in sufficient quantity to supply the needles by bendthrough a guide 9 which, may be either fixed,
  • the action of the sweep member 2 with its yarn guide 1 compensates for the stretching of the yarn due to increased tension.
  • the tension increases between the bobbin and the furnishing wheels, due to the yarn coming off from the bobbin less freely than it should:
  • the action of the teeth of the furnishing wheels drawing oil the yarn by bending it between them will cause the yarn to stretch in that length lying between the bobbin and the furnishing wheels and at the same time there will be a tendency ofthe tension to rise in that length of the yarn extending between the furnishing Wheels and the needles because the yarn going through will be stretched and on relaxlng orreturning to normal length, will tend to increase on a bracket 13 pivote the tension in the portion of the yarn just yarn between the furmshin wheels and the needles is being used up without being relenished at the normal rate, the sweep will he pulled down and the guide e 'e 1 will be moved towards the large ends 0 the conical wheels with the result that moreyarn will be measured oil, so that the recovering tendency of the yarn, that is
  • the toothed furnishin wheel 5 is mounted d at 14 to the head A and adjusted by a nut 15 so as to make the teeth of the wheels mesh more ,or less deeply to obtain nicety in the amount of yarn furnished by the rotation of the wheels.
  • the adjustment by the nut takes place against the pressure of the spring 16.
  • the sweep member is constructed to avoid violent or undue oscillatory movement and. it operates to secure the same effect that adash pot would give in eliminating overthrow due to momentum.
  • the member 2 is formed hollow and is divided by a partition 17 into two compartments.
  • the partition has upper and lower openings 18, 18' placing the two compartments in communication with each other.
  • 'A body of mercury m is plaeedin the compartments and while the disc is selh sitive'initially to a force applied thereto, i. e. the pull of the yarn in this case, it is also sensitive to a cessation of this force and will stop its movement immediately the force is removed. This will be due to the weight of the mercury which will be lifted by the paltition when the disc is moved about its pivot and this body of mercury will act as a counterweight to exert a returning force.
  • the mercur wil also be flowing gradually from the hig "compartment tothe low compartment and gradually lessening its tendency to make the disc turn violently in the opposite direction, and the flow of the mercury into the low compartment will add to the counterweight effect here and prevent the disc from swingin unduly on its return movement.
  • Theppenm 18 isfor the pas sa of thenierk':- an the o nin 18, is fog the air.
  • adjustable counterweight 19 is provided on the sweep body. This wei t 19 is pivoted at 20 to the sweep body an by setting it in different positions along the are 31 the tension of the yarn may auaeae be varied. This counterweight will be held in any of its positions by a screw 21. This screw passes through an opening 22 in the bracket 4 and serves to limit the movement of the sweep and guide 1 within limits corresponding to the length of the conical yarn furnishing rolls.
  • the tension of the yarn delivered to the needles depends on the adjustment of the weight 19 pivoted on the sweep member 2.
  • the adjustment of the wheels towards and from each other will not affect the tension because the sweep eye 1 will compensate by changing its position for the adjustment of the wheels towards and from each other. For instance, if the wheels are set closer together to mesh deeper and thus furnish more yarn, the guide 1 will move automatically towards the small end of the cone andthe result will be that the lengths measured oil will be thesame as before the wheels were adjusted, and the same is true if the wheels are adjusted apart to mesh less deepl for then the guide eye 1 will move toward s the large end of the cones.
  • the wheels might be non-adjustable if the approximate point of setting could be-accurately determined. With the ad'ustment of the wheels the device is rendere capable of attachment to machines of various cuts. With it the approximate point can be obtained at which the wheels should stand to give the desired quantity of yarn and the swinging of the uide 1 takes care of variations in tension y swinging towards both sides of this point. Short cones are thus usable. lVith non-adjustable cones they would have to be so long as to take care of all the different conditions of feed for different machines. In other words the adjustment of the wheels towards and from each other determines the approximate or average lengths of yarn to be measured off. This approximation is modified or refined by the movement of the guide 1 back and forth along the cones.
  • I may employ two swee with each air of toothed furnishing whee
  • Each of t ese will take care of one yarn and their yarn guides 1 will be arranged to pass each-other so that one .yarn may pass the other accord ing to the tension conditions in the res yarns.
  • the relative tension of the two yarns can be regulated, and plating may be done. Instead of runnin the two yarns to one feed they may be id off to different feeds of the machine.
  • the present invention is a refinement of that disclosed in the application above referred to in so far as the yarn furnishing means is concerned, the present invention taking care of more variations in the yarn conditions.
  • the yarn is measured oil by wheels having teeth which intermesh varyingly as to depth, the principle involved being such that when the tension on the yarn increases the measuring will result from the deeper intermesh, whereas when the yarns tension decreases the measuring oif will result from the lesser intermesh of the teeth.
  • the teeth are on wheels of conical form and they mesh deepest at the large ends of the wheels, the depth of mesh gradually decreasing towards the small ends of the conical wheels. I do not limit myself however to the construction shown, as other species may be employed within the generic principles involved to get the variable measuring off of the yarn according to the variations in the tension thereof.
  • wheels shown herein has the advantage of giving a wide range of variation in the measuring action because of the different depths to which the teeth mesh at different points along them and also because of the different diameters of the front and back ends of the wheels.
  • a pair of yarn furnishing members adapted to feed the yarn at different rates of speed according to the different positions along the members to which the yarn 1s moved to pass between them, said members being arranged on horizontal axes, a pa1r of yarn guides turning about a horizontal axis extending transverse to the vertical planes in which the axes of the rotary members lie, said guides swin ing in planes ad acent to, parallel with an on op osite sides of the vertical plane in which t e rotary members meet and sweeps connected with the yarn guides to turn them about said axis according to variations in the tension of the yarns, said yarn guides being free to pass each other, substantially as described.
  • a pair of rotary yarn furnishing members adapted! to feed the yarn at different rates of speed, according to the diiferent positions along the members to which the yarn is moved to pass between them, a guide pivotally su ported and moving along a plane coinci ing substantially with the plane in which the rotary members meet, a sweep arranged on the same side of the members with the guide, and connected to the guide to move about the same pivot therewith, and a dropper guide on the opposite side of the members from that upon which is located the first mentioned guide receivin the yarn after passing through the first gui e and the rotary members, and directing it to the sweep, substantially as described.
  • rotar yarn furnishing means to supply the nee les of a knitting machine at different rates according to the point at which the yarn contacts therewith, a yarn guide movable alon said yarn furnishing means to change t e point of contact of the yarn therewith, a sweep subject to the varying tension of the yarn by which 4 v unease said sweep is moved, and means connecting said hollow mounting preventing undue viwith the said movable yarn guides and sweep, brati'on and .vamatlon of the mt of oon- 10 and serving as a mountmg therefor, said tact of the yarn with the sai rotm y yarn -,means conslsting of a hollow body pivotally furnishing means, substantially as deniounted and containing a body of liquid scribed.
  • KENNETH HOVVIE a vertical perforated partition for the flow of fluid from one compartmentto the other

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
US553461A 1922-04-17 1922-04-17 Yarn-furnishing mechanism for knitting machines Expired - Lifetime US1562829A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US553461A US1562829A (en) 1922-04-17 1922-04-17 Yarn-furnishing mechanism for knitting machines
GB7932/23A GB196262A (en) 1922-04-17 1923-03-20 Improvements in or relating to circular knitting machines
DEW63516D DE435367C (de) 1922-04-17 1923-04-01 Fadenzubringvorrichtung fuer Strickmaschinen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US553461A US1562829A (en) 1922-04-17 1922-04-17 Yarn-furnishing mechanism for knitting machines

Publications (1)

Publication Number Publication Date
US1562829A true US1562829A (en) 1925-11-24

Family

ID=24209495

Family Applications (1)

Application Number Title Priority Date Filing Date
US553461A Expired - Lifetime US1562829A (en) 1922-04-17 1922-04-17 Yarn-furnishing mechanism for knitting machines

Country Status (3)

Country Link
US (1) US1562829A (de)
DE (1) DE435367C (de)
GB (1) GB196262A (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2534459A (en) * 1945-04-23 1950-12-19 Scott & Williams Inc Strand feeding mechanism
US2542816A (en) * 1946-06-20 1951-02-20 Bentley Eng Co Ltd Knitting machine
US2561175A (en) * 1949-01-27 1951-07-17 Stibbe G & Co Ltd Yarn feeding mechanism for knitting machines
US4015447A (en) * 1975-01-03 1977-04-05 Morris Philip Method and apparatus for positively feeding yarn

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE970469C (de) * 1942-09-22 1958-10-30 Fouquet Werk Frauz & Planck Fadenlieferapparat fuer Rundwirk-, Rundstrick- u. dgl. Maschinen
GB657503A (en) * 1948-08-05 1951-09-19 Stibbe G & Co Ltd Improvements in or relating to yarn feeding mechanism for knitting machines

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2534459A (en) * 1945-04-23 1950-12-19 Scott & Williams Inc Strand feeding mechanism
US2542816A (en) * 1946-06-20 1951-02-20 Bentley Eng Co Ltd Knitting machine
US2561175A (en) * 1949-01-27 1951-07-17 Stibbe G & Co Ltd Yarn feeding mechanism for knitting machines
US4015447A (en) * 1975-01-03 1977-04-05 Morris Philip Method and apparatus for positively feeding yarn

Also Published As

Publication number Publication date
GB196262A (en) 1924-04-03
DE435367C (de) 1926-10-12

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