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US2635440A - Method of transferring loops from dial needles to cylinder needles - Google Patents

Method of transferring loops from dial needles to cylinder needles Download PDF

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Publication number
US2635440A
US2635440A US195650A US19565050A US2635440A US 2635440 A US2635440 A US 2635440A US 195650 A US195650 A US 195650A US 19565050 A US19565050 A US 19565050A US 2635440 A US2635440 A US 2635440A
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United States
Prior art keywords
needles
dial
loops
cylinder
needle
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Expired - Lifetime
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US195650A
Inventor
Pierre Paul L St
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Hemphill Co
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Hemphill 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.)
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Publication date
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Priority to US195650A priority Critical patent/US2635440A/en
Application granted granted Critical
Publication of US2635440A publication Critical patent/US2635440A/en
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Expired - Lifetime legal-status Critical Current

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    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04BKNITTING
    • D04B15/00Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/08Needle latch openers; Brushes
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04BKNITTING
    • D04B9/00Circular knitting machines with independently-movable needles
    • D04B9/22Circular knitting machines with independently-movable needles with provision for changing the fabric construction, e.g. from plain to rib-loop fabric
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04BKNITTING
    • D04B9/00Circular knitting machines with independently-movable needles
    • D04B9/42Circular knitting machines with independently-movable needles specially adapted for producing goods of particular configuration
    • D04B9/46Circular knitting machines with independently-movable needles specially adapted for producing goods of particular configuration stockings, or portions thereof
    • D04B9/54Circular knitting machines with independently-movable needles specially adapted for producing goods of particular configuration stockings, or portions thereof welts, e.g. double or turned welts

Definitions

  • This invention relates to a latch closer intended primarily for use with the dial needles of a. circular, independent needle, dial and cylinder hosiery machine capable of knitting a rib top and automatically shifting to a plain knit leg although it is not limited to this use.
  • the rib top may be knit in the usua1 way on the dial and cylinder needles.
  • the opening and closing of the latches of the dial needles is controlled by the loops of yarn upon those needles in the usual way.
  • the dial needles are projected outwardly to an extreme degree so that the loops thereon move far back upon the needle shanks which are thicker there than closer to the needle latches. The result is that the loops may be enlarged somewhat and in consequence, when the dial needles are retracted they may jump over latches which are open and lodge in the hooks of the needles.
  • the latch closer of the invention positively closes the latches of the dial needles, its operation beginning just as the needles reach their extreme projection and being completed after their retraction has begun. In consequence, the loops of the dial needles cannot possibly be caught in the hooks but will be cast off properly and any imperfection in transfer resulting from this accident is wholly eliminated,
  • Fig. 1 illustrates diagrammatically one form of the latch closer of this invention mounted on the carrier ring of a dial and cylinder machine of the type specified above. A part of the dial with a few dial needles in the positions which they occupy adjacent the point of transfer are also shown.
  • Fig. 2 is a diagrammatic view of the initial action of the latch closer upon a dial needle
  • Fig. 3 is a similar View showing the completion of the latch closing operation.
  • Fig. 4 is a side elevation of a part of Fig. 1.
  • the latch closer consists of a holder 5 pivoted as at 2 to a bracket 3 which may be fixed to the top of the carrier ring 4.
  • a latch closing finger 5 is held by holder 1 so that one portion projects towards the dial needles.
  • the free end of this portion is in the form of a blade 6 which is inclined laterally sufiiciently from the vertical that its lower thin edge may pass under a needle latch 1 as shown in Fig. 2 and gradually close that latch as shown in Fig. 3.
  • An adjusting screw 8 is threaded through bracket 5 and is engageable with holder l as shown in Fig. t.
  • the vertical position of blade 6 can be established against the tension of a spring 9 which also lends resilience to blade 6 and thereby prevents damage to the needles in case of misalignment of a needle or the latch closer.
  • the blade may be adjusted laterally by bending portion 5.
  • blade 6 is so positioned that just before a needle such as [0 reaches its extreme, projected position during the transfer process, the blade will pass under the top of latch l as shown in Figs. 1 and 2.
  • blade 6 closes its latch progressively so that when needle 10 reaches the position occupied by needle I l in Fig. 1, which is during the retraction of the dial needles for casting off, blade 6 will have closed the latch completely as shown in Fig. 3. In this way, any possibility of the loop of needle 10 being caught in the hook of that needle and failing to cast off is eliminated and defective transfer resulting from the failure of dial loops to clear the dial hooks is made impossible.
  • a method of transferring loops of yarn from dial needles to cylinder needles of a circular, independent needle, knitting machine which includes the steps of positioning said loops to be transferred on the shanks of the dial needles behind the latches of said dial needles, raising the cylinder needles so as to enter said loops, closing the latches of said dial needles independently of assistance from said loops by means of the radial and rotary motion of said dial needles with respect to a latch closing member in the path of said latches so that said loops will pass over said previously and independently closed latches of said dial needles thereby eifecting said transfer when said dial needles are withdrawn within said dial.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)

Description

April 1953 P. L. 51'. PIERRE METHOD OF TRANSFERRING LOOPS FROM DIAL NEEDLES TO CYLINDER NEEDLES Filed Nov. 14, 1950 Mas/2'02.- 111L527 Patented Apr. 21, 1953 METHOD OF TRANSFERRING LOOPS FRGIW DLAL NEEDLES TO CYLINDER NEEDLES Paul L. St. Pierre, Pawtucket, R. 1., assignor to Hemphill Company, Central Falls, R. I., a corporation of Massachusetts Application November 14, 1950, Serial No. 195,650
1 Claim.
This invention relates to a latch closer intended primarily for use with the dial needles of a. circular, independent needle, dial and cylinder hosiery machine capable of knitting a rib top and automatically shifting to a plain knit leg although it is not limited to this use.
The rib top may be knit in the usua1 way on the dial and cylinder needles. During this knitting the opening and closing of the latches of the dial needles is controlled by the loops of yarn upon those needles in the usual way. When the loops upon the dial needles are transferred to cylinder needles between the end of the knitting of the top and the beginning of the knitting of the leg, the dial needles are projected outwardly to an extreme degree so that the loops thereon move far back upon the needle shanks which are thicker there than closer to the needle latches. The result is that the loops may be enlarged somewhat and in consequence, when the dial needles are retracted they may jump over latches which are open and lodge in the hooks of the needles. The latch closer of the invention positively closes the latches of the dial needles, its operation beginning just as the needles reach their extreme projection and being completed after their retraction has begun. In consequence, the loops of the dial needles cannot possibly be caught in the hooks but will be cast off properly and any imperfection in transfer resulting from this accident is wholly eliminated,
In the drawings, Fig. 1 illustrates diagrammatically one form of the latch closer of this invention mounted on the carrier ring of a dial and cylinder machine of the type specified above. A part of the dial with a few dial needles in the positions which they occupy adjacent the point of transfer are also shown.
Fig. 2 is a diagrammatic view of the initial action of the latch closer upon a dial needle;
Fig. 3 is a similar View showing the completion of the latch closing operation; and
Fig. 4 is a side elevation of a part of Fig. 1.
As best shown in Figs. 1 and 4, the latch closer consists of a holder 5 pivoted as at 2 to a bracket 3 which may be fixed to the top of the carrier ring 4. A latch closing finger 5 is held by holder 1 so that one portion projects towards the dial needles. The free end of this portion is in the form of a blade 6 which is inclined laterally sufiiciently from the vertical that its lower thin edge may pass under a needle latch 1 as shown in Fig. 2 and gradually close that latch as shown in Fig. 3. An adjusting screw 8 is threaded through bracket 5 and is engageable with holder l as shown in Fig. t. By this means the vertical position of blade 6 can be established against the tension of a spring 9 which also lends resilience to blade 6 and thereby prevents damage to the needles in case of misalignment of a needle or the latch closer. Also, the blade may be adjusted laterally by bending portion 5.
As best shown in Fig. 1, blade 6 is so positioned that just before a needle such as [0 reaches its extreme, projected position during the transfer process, the blade will pass under the top of latch l as shown in Figs. 1 and 2. As needle l0 continues to move in counter-clockwise direction, blade 6 closes its latch progressively so that when needle 10 reaches the position occupied by needle I l in Fig. 1, which is during the retraction of the dial needles for casting off, blade 6 will have closed the latch completely as shown in Fig. 3. In this way, any possibility of the loop of needle 10 being caught in the hook of that needle and failing to cast off is eliminated and defective transfer resulting from the failure of dial loops to clear the dial hooks is made impossible.
I claim:
A method of transferring loops of yarn from dial needles to cylinder needles of a circular, independent needle, knitting machine which includes the steps of positioning said loops to be transferred on the shanks of the dial needles behind the latches of said dial needles, raising the cylinder needles so as to enter said loops, closing the latches of said dial needles independently of assistance from said loops by means of the radial and rotary motion of said dial needles with respect to a latch closing member in the path of said latches so that said loops will pass over said previously and independently closed latches of said dial needles thereby eifecting said transfer when said dial needles are withdrawn within said dial.
PAUL L. ST. PIERRE.
References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 1,082,239 Rosenthal Dec. 23, 1913 1,137,561 Williams 1- Apr. 2'7, 1915 1,990,416 Page Feb. 5, 1935 2,399,002 Coile Apr. 23, 1946 2,442,442 Shortland June 1, 1948
US195650A 1950-11-14 1950-11-14 Method of transferring loops from dial needles to cylinder needles Expired - Lifetime US2635440A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US195650A US2635440A (en) 1950-11-14 1950-11-14 Method of transferring loops from dial needles to cylinder needles

Applications Claiming Priority (1)

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US195650A US2635440A (en) 1950-11-14 1950-11-14 Method of transferring loops from dial needles to cylinder needles

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US2635440A true US2635440A (en) 1953-04-21

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3115024A (en) * 1958-09-16 1963-12-24 Bear Brand Hosiery Co Apparatus and methods for making stockings and the like
CN111394870A (en) * 2020-05-11 2020-07-10 泉州市鼎丰针织机械有限公司 Large single-side jacquard with needle opener

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1082239A (en) * 1913-02-12 1913-12-23 Morris G Rosenthal Knitting-machine.
US1137561A (en) * 1915-04-27 Scott & Williams Inc Rib-knitting machine.
US1990416A (en) * 1931-08-06 1935-02-05 Scott & Williams Inc Knitting machine
US2399002A (en) * 1943-09-23 1946-04-23 Fidelity Machine Company Inc Circular knitting machine
US2442442A (en) * 1943-10-04 1948-06-01 Mellor Bromley & Co Ltd Machine for producing knitted fabric

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1137561A (en) * 1915-04-27 Scott & Williams Inc Rib-knitting machine.
US1082239A (en) * 1913-02-12 1913-12-23 Morris G Rosenthal Knitting-machine.
US1990416A (en) * 1931-08-06 1935-02-05 Scott & Williams Inc Knitting machine
US2399002A (en) * 1943-09-23 1946-04-23 Fidelity Machine Company Inc Circular knitting machine
US2442442A (en) * 1943-10-04 1948-06-01 Mellor Bromley & Co Ltd Machine for producing knitted fabric

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3115024A (en) * 1958-09-16 1963-12-24 Bear Brand Hosiery Co Apparatus and methods for making stockings and the like
CN111394870A (en) * 2020-05-11 2020-07-10 泉州市鼎丰针织机械有限公司 Large single-side jacquard with needle opener

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