US1779237A - Mechanism for knitting plated fabric - Google Patents

Mechanism for knitting plated fabric Download PDF

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Publication number
US1779237A
US1779237A US209382A US20938227A US1779237A US 1779237 A US1779237 A US 1779237A US 209382 A US209382 A US 209382A US 20938227 A US20938227 A US 20938227A US 1779237 A US1779237 A US 1779237A
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US
United States
Prior art keywords
lever
levers
needles
cams
cam
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
US209382A
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English (en)
Inventor
Harold E Houseman
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.)
STANDARD TRUMP BROS MACHINE CO
STANDARD-TRUMP BROS MACHINE Co
Original Assignee
STANDARD TRUMP BROS MACHINE 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 STANDARD TRUMP BROS MACHINE CO filed Critical STANDARD TRUMP BROS MACHINE CO
Priority to US209382A priority Critical patent/US1779237A/en
Priority to FR658384D priority patent/FR658384A/fr
Priority to DEST44541D priority patent/DE587776C/de
Priority to GB22066/28A priority patent/GB294891A/en
Application granted granted Critical
Publication of US1779237A publication Critical patent/US1779237A/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
    • D04B9/00—Circular knitting machines with independently-movable needles
    • D04B9/26—Circular knitting machines with independently-movable needles for producing patterned fabrics
    • D04B9/38—Circular knitting machines with independently-movable needles for producing patterned fabrics with stitch patterns
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B9/00—Circular knitting machines with independently-movable needles
    • D04B9/26—Circular knitting machines with independently-movable needles for producing patterned fabrics
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B9/00—Circular knitting machines with independently-movable needles
    • D04B9/26—Circular knitting machines with independently-movable needles for producing patterned fabrics
    • D04B9/28—Circular knitting machines with independently-movable needles for producing patterned fabrics with colour patterns

Definitions

  • Thepresent invention comprises automatic pattern-controlled mechanism particularly adap1 ed for actuating the mechanism set fort in the Wilbur L. Houseman application. i.
  • FIG. 1 is a plan view of a knitting machine ⁇ to which the invention has been applied, the fi' re embodying also a general view of some o the elements of my'invention.
  • f Fig; 2 is a side elevation'of the-parts shown inF1g.1. .f
  • Fig. ⁇ 3 is a plan view of that part ofthe machine that embodies my -invention.
  • Fig. 5 is a section through Fig'. 3 on the line 5 ⁇ 5.
  • Fig.' 6 is a section on the line 6-6 of Fig. 3
  • Fig. 7 is a'detail view of one of the needle presser actuating jacks of Fig. 6.
  • Fig. 8 is a detail view of the upper ends of two needles, one in normal position to knit .regular plated fabric and the other pressed back into position to knit reverse plated fabric. f i
  • Figs. 9, 10 and 11 are detail views, in diere'nt positions, of the lever mechanism lconstitutin part of my invention.
  • I shall 1rst describe themechanism for selectively pressing back needles devised by :Wilbur L. Houseman and illustrated in Figs. 6, 7 ⁇ and 8, and shall then describe the pattern-controlled means that I have devlsed for actuating said mechanism automatically.
  • the needles b which are movable up .and down in anormal knitting wave by cams not shown.
  • .Fastened to the needle cylinder is the sinker dial 0, which carries the'sink'ers or web holders b', which cooperate with the needles in the usual manner to-form the stitches.
  • a slotted jack dial d which is attached to the sinker dial.
  • Press- -erse are plcaed in' the needle cylinder slots after the needles have been inserted and are held in place by the two spring bands 60. These pressers are so shaped that they bear against the needles at the extreme upper ends of the pressers and also at points opposite the spring bands 60.
  • the needle cylinder slots are of greater than normal depth at their upper ends, forming shoulders 62. The needles are unsupported above these shoulders, which act as fulcrums when needles are l .pushed back by the upper ends of pressers e.
  • the jack dial d has slots corresponding in .number with the slots in the needle cylinder.
  • jacksf are inserted in the dial slots. These jacks are held lightly in contactv with their corresponding needle pressers e lby a spring band 61.
  • the jacks are formed with slots on their rear ends so that sections may be broken out in dierent places leavin butts f which may be in any one of eight ifferent vertical positions. If desired, .there may be two or more butts on a Jack.
  • Fig. 3 these cams are shown pivoted on a stud 50.
  • a stud i which is'on a bracket attached to the-machine frame, are eight levers j, one foreach of the cams g, g1, etc., and in vertical alignment with said cams.
  • Springs Z one for each lever, tend to similar extensions on the jack cams, ren ering said cams active by pushing them toward the jack dial and thus in the path of butts on the jacks.
  • Adjusting screws m one for each lever, enable a fine adjustment of the pushing cams to be made so that needles will be sprung back just the proper distance.
  • Levers y' have slotted holes where they pivot on stud i so that they will move toward or from the jack cams when screws m are adjusted.
  • the sides of these levers where they bear against screws m are curved so as to follow a true radius from stud z'.
  • Pivoted on stud 51 in alignment with the eight levers j are eight stepped levers n, 11.1, etc., one for each lever j.
  • levers n, nl, etc. are rocked in a clockwise direction, their corresponding levers j are moved in a counter-clockwise direction, whereby shoulders k disengage the projections on the corresponding jack cams g, g1, etc., thereby ren dering said cams inoperative.
  • levers n, n1, etc. When, however, levers n, n1, etc., are rocked in the opposite direction, the ends of levers n, nl, etc., fall into recesses in their corresponding levers j, thereby permitting springs Z to function to render said levers j active to push correspending jack cams into operative position.
  • levers are in two groups of four each, being spaced apart by a sleeve a (see Fig. 4), and
  • levers 1', 11, etc. As the ends of the levers n, 11.1, etc., are formed with up er and lower cam faces, levers 1', 11, etc., w en moved forward will slide up and beyond the upper cam faces and rock levers 111,11), etc., in a counter-clockwise direction and hold them in this position.
  • levers 1, 11, etc. When levers 1, 11, etc., are moved in the opposite direction, levers n, 11,1, etc., will be moved in a clockwise direction, through the action of said levers 1', 11, sliding along the lower cam surfaces of levers n, 11,1, etc.
  • levers 1', 11, etc. which, as before mentioned, consist of an upper set of four and a lower set of four, are operable respectively by eight levers t, t1, etc., .which are also grouped in upper and lower sets of four each. These levers t t1, etc., are pivoted between their 9 against al sto 'v on lever 30 by means of a spring lw. Inf igs. 10 and 11, to avoid confusion, only two sets of levers 1t, nl, 1*, 11, and t, t1 are shown. .In Figs. 4 and 5 the groups of these levers are illustrated.
  • Each of the levers t, t1, t2 and t3 of the top group is operated b 'a selector A20, which 1s movable laterally, y means to be hereinafter described, and vertically as shown in dotted lines, Fig. 5, to selectively actuate any of said levers.
  • a similar selector 21 operates in identically the same manner to selectively operate each of the levers t4, t5, t and t7 of the lower group.
  • lever t during whichy limited downward movement of lever t, it contacts with the extreme tip of lever 1 and thereafter snaps over it; the selector 20 (which is held in operative position by a spring 22 that is stronger than spring w) yielding slightly to allow lever t to yield suiciently to enable it to clear the tip of cam g activev thereb carryin lever t out of'contact with the se ector. hereupon, as lever continues to move down, lever r hasta cam action),A on lever t'andswings it against the ull of.
  • lever t is confined between lever r and stop av, andexerts a positive cam action on lever 1' and tiltsl it down on its axis, as shown in Fig. 11, thereby swinging lever n into position to release lever j, which is' swung by its spring l to render jack vcam active.
  • lever t will release lever r, and if selector 20, in the meanwhile, has been shifted,.lever t will be retracted, by its spring 1p, to the position shown in Fig. 9; but lever r will not be retracted because its end has moved beyond the upper cam angle on lever n.
  • lever r shall maintain its advanced pgsition until another chain of levers shall actuated by the selector 20, and that lever r shall be retracted at the same time that another lever r1, r2 or r is advancing. This is accomplished by causing any of the levers ⁇ t, t1, t2 or ts in the movement by which it ac lvances its corresponding lever r, r1, r or r to swingthe other levers t, t1, t, t in the group, lnto position to retract any of the levers 1', r1, r2, or 1' that may be in advanced position.
  • lever 7- is advanced-all as hereinbefore explained. It will be observed,'by reference to Fig. 9, that each lever t, t1, t2 and t is forked at one end thereof, that stop lv acts to limit the movement in one direction of levers t, t1, t2 and t by contacting with the lower fork, and that on the shaft carryin levers t, t1, t2 and t3 is pivoted an arm provi ed with a pin s, which engages the upper fork of any of the levers t, t1, t and t that is in its normal position. Assuming that, as above described, lever 30 is completlng its downward movement and that lever t is swinging from the sition shown in Fig.
  • lever t has contacted with pin z. Therefore, as lever t swings from the position shown in Fig. 10 to the position shown in Fig 11, its lower fork actuates pin z. Pin z contacts with the up er forks ofthe other levers t1, t and t3 an yswings them into theA ition in which lever t1 is shown in Fig. 11. f, as above assumed, lever r1 vis in its advanced position, lever t1 will contact with lever rl and swin it into the osition occupied by lever r1 in ig.
  • levers t, t1, t and t' are s aced above the lower group t", t, t and t', t e upper oup being controlled by selector 20 and the owerfgroup by selector 21.
  • “Ihese selectors are operated by separate pattern mechanisms to be hereinafter described, 4so that a selection may be made in either the up r or lower groups independently or, if dsired, simu taneously. It is 'therefore possible to render any one of the upper four cams g, g1, etc., active by the operationof the upper selector 20, or any one of the lower four of said cams active by the op'- eration of the lower selector 21, or one of t e upper four and one of the lower four of said cams simultaneously active by the simultaneous action of both selectors.
  • Pin z extends downward between the forked ends of all the levers t, t1, etc. of both groups so that when an one of said levers is selectively o erated, al of the other levers will be rock by said pin for the purpose described.
  • Lever 30 is actually the 'long arm of a bell crank lever pivotally mounted on the machine frame (see Fig. 1).
  • the other arm ofthis lever has a pin which rides on a cam 71 on gear wheel 0, thereby, in coo ration with a spring 73, giving lever 30 t e reciproca.- ⁇
  • Gear wheel is geared one to one withthe needle cylinder through an intermediate gear 72.
  • Reci rocating lever 30 carries a pawl 32 (see Flgs. 1, 3 and 5) that imparts an intermittent progressive movement to a ratchet wheel 33 on a shaft carrying two pattern chains 35 and 36.
  • the attern chains are provided-with removable ugs of four different heights.
  • Lugs on thepattern chain 35 are ,adapted to engage a cam mem ⁇ ber 41 carried on a yoke-shaped lever 42 (see Fig. 5) on the end of which is mounted the selector 21.
  • This lever 42 is plvoted to a bracket 48.
  • the lever 42 is normally down in a osition where the selector 21 is inactive, butis movable into fo'ur different positions,
  • the selectors may be shifted to actuate any predetermined chains of levers at each course of knitting, and that thereby jack cams g, g1', etc.,may be moved into and out of action in suchmanner as to produce any desired pattern.
  • This disc is intermittently ratcheted and controls ⁇ the knitting of the various parts of the stocking, including the knitting of the heel and toe portion and the leveling of the needles for transferring, in a manner which is well known in the art.
  • Extending upward from lever 81 is a bent arm 84 which passes over and above levers n, n1, etc.
  • lever 81 When lever 81 is rocked by cam- 83, the arm 84 pushes against a lever 85 which is pivoted at z', and by means of a depending pin 86, which passes in front of the eight levers y', swings any of such levers which at the time may be in the active position to the inactive position and holds all the levers 7' inactive notwithstandin any operation of any lever n which woul normally operate its corresponding lever y' to move its corresponding cam into operative position.
  • cam 83 passes from under lever 81, lever 85 is released from arm 82 and levers j again come under control ofthe pattern mechanism described.
  • the pattern mechanism may be, whenever desired, rendered inoperative to press needles out of line.
  • reciprocatory member carrying the lever of each chain that is adapted to actuate another lever of the same chain, a selector adapted to move the first lever of any chain into actuating position, means to actuate the needle cylinder and synchronously therewith said reciprocatory member, and pattern mechatrivances, one for each of nism adapted to osition the selector.
  • Jo ra levers one for egli shifting levesr,p:ndtn;gconnecting means operable, when any operating lever is rendered operative, to synchronously tput into action its shifting lever and render inopera- -out of voperative tive any other shifting lever that had been' previously operative.
  • cams to deflect the hook ends of needles out of their normal knitting plane
  • levers one lfor each cam, adapted to render the respective cams operative
  • pattern controlled means adapted to selectively render said leversv operable or inoperable to render the respective cams operative
  • lanother pattern controlled means adapted to render all of said 'levers inoperable to render the respective cams operative regardless of the operation of the first named pattern controlled means.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
US209382A 1927-07-29 1927-07-29 Mechanism for knitting plated fabric Expired - Lifetime US1779237A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US209382A US1779237A (en) 1927-07-29 1927-07-29 Mechanism for knitting plated fabric
FR658384D FR658384A (fr) 1927-07-29 1928-07-28 Perfectionnements dans les mécanismes pour fabriquer des tricots doublés
DEST44541D DE587776C (de) 1927-07-29 1928-07-29 Mustervorrichtung fuer Rundstrickmaschinen
GB22066/28A GB294891A (en) 1927-07-29 1928-07-30 Improvements in mechanism for knitting plated fabric

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US209382A US1779237A (en) 1927-07-29 1927-07-29 Mechanism for knitting plated fabric

Publications (1)

Publication Number Publication Date
US1779237A true US1779237A (en) 1930-10-21

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Family Applications (1)

Application Number Title Priority Date Filing Date
US209382A Expired - Lifetime US1779237A (en) 1927-07-29 1927-07-29 Mechanism for knitting plated fabric

Country Status (4)

Country Link
US (1) US1779237A (de)
DE (1) DE587776C (de)
FR (1) FR658384A (de)
GB (1) GB294891A (de)

Also Published As

Publication number Publication date
FR658384A (fr) 1929-06-04
GB294891A (en) 1929-10-24
DE587776C (de) 1933-11-09

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