US3425243A - Pattern selecting mechanism - Google Patents

Pattern selecting mechanism Download PDF

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Publication number
US3425243A
US3425243A US648460A US3425243DA US3425243A US 3425243 A US3425243 A US 3425243A US 648460 A US648460 A US 648460A US 3425243D A US3425243D A US 3425243DA US 3425243 A US3425243 A US 3425243A
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United States
Prior art keywords
pattern
levers
perforations
drum
selecting
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Expired - Lifetime
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US648460A
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English (en)
Inventor
Frederick C Wiesinger
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.)
MAYER WILDMAN INDUSTRIES Inc
HORACE L BOMAR
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HORACE L BOMAR
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Publication of US3425243A publication Critical patent/US3425243A/en
Assigned to MAYER, ROTHKOPF INDUSTRIES, INC. A CORP. OFDE reassignment MAYER, ROTHKOPF INDUSTRIES, INC. A CORP. OFDE ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: HAYES-ALBION CORPORATION
Assigned to MAYER, WILDMAN INDUSTRIES INC. reassignment MAYER, WILDMAN INDUSTRIES INC. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: MAYER, ROTHKOPF INDUSTRIES INC.
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
    • D04B15/66—Devices for determining or controlling patterns ; Programme-control arrangements
    • D04B15/68—Devices for determining or controlling patterns ; Programme-control arrangements characterised by the knitting instruments used

Definitions

  • the invention relates to an improvement in the pattern mechanism for independent needle knitting machines of the type which utilize perforated endless pattern strips or tapes that are continuously advanced by means of drums individual thereto having helical slots which become aligned with the perforations in said tapes.
  • this form of patterning includes a plurality of selecting levers having spring biased detents or pattern feeler members which are adapted to function in cooperation with each perforated tape and its respective drum.
  • the pattern feeler members of the levers to be selected align with said tapes perforations causing said feeler members to pass therethrough and into the grooves of the drum.
  • Continued rotation of the drum moves the selected levers inwardly toward the needle cylinder to a position where they are pivoted downwardly by a rotating cam causing a raising lever to pivot and elevate a jack individual thereto to an active level.
  • the selecting levers are disposed in such a manner that their feeler members are positioned in side by side relation across the width of the strip pattern forming a line which extends parallel with the axes of the drums.
  • This arrangement of selecting levers limits the number thereof which can be selected by a given drum and limits the so-called cut of the machine, or in other words, the number of knitting instrumentalities per inch carried by the cylinder.
  • the improved pattern selecting mechanism provides a means for utilizing a substantially greater number of selecting levers within the conventional width of a strip pattern thereby permitting an equal number of knitting instrumentalities to be operably carried by the cylinder.
  • a 30 inch diameter knitting machine with the known form of patterningis provided with 24 pattern drums and each drum is capable of accommodating a maximum of 56 selecting levers. This provides the machine with a 14% cut or a maximum of 1344 possible single needle selections for the entire machine.
  • the improved pattern selecting mechanism with the same size knitting machine and with the conventional number of pattern drums increases the machines cut to 18% or a possible selection of 1,728 needles and results in an increase of 16 additional selecting levers for each pattern drum;
  • Knitting machines having pattern selecting mechanisms that utilize helically grooved pattern drums and endless strip patterns with perforations arranged to register with the grooves of said drums are well known to' those conversant with this art and an example of such a machine according to the prior art and over which the present invention is an improvement is evidenced in United States Patent Re. 24,912.
  • the pattern drums which form a part of the instant invention are provided with pairs of juxtaposed slots disposed in spaced relation about the drums and they extend helically relative to the axes thereof.
  • the endless strip patterns or pattern cards are provided with double rows of perforations which are arranged to register with each pair of slots in the drums as the latter are rotated.
  • the double rows of perforations in the pattern cards are alternately arranged, that is to say, the perforations in a single row of any given pair are disposed in spaced relation to and intermediate those of the other row of that pair.
  • the pattern feeler members of a row of selecting levers for a pattern drum are disposed in allochiral relation across the width of the pattern card, or in other words, the alternate levers have their feeler members arranged to align with one row of perforations and the intermediate levers have their feeler members positioned to align with the other row of perforations of the same pair.
  • feeler members of the selecting levers and perforations in the pattern cards being arranged in this manner permits utilization of additional levers with each pattern'drum and a pattern card with sufficient space between the perforations to minimize the possibility of tearing out the sections therebetween.
  • FIG. 1 is a section taken through a portion of a circular knitting machine to which the invention has been applied;
  • FIG. 2 is a view partially in section and on a slightly larger scale of a portion of the selecting mechanism shown in BIG. 1;
  • FIG. 3 is a plan view of a pattern drum showing the pairs of spaced slots disposed about said drum.
  • FIG. 4 is a view of a portion of a pattern card showing the arrangement of the perforations therein.
  • FIG. 1 To serve as a basis for a detailed description of the invention applied thereto.
  • This improved pattern selecting mechanism is applicable to practically any independent needle knitting machine in which extensive pattern work is to be done and is here shown in a double cylinder machine (lower cylinder only shown).
  • the lower cylinder is shown at 10 and is slotted to act as a needle bed for the conventional double hooked needles 11 which are directly controlled at their lower ends by sliders 12 having butts 13.
  • the knitting machine shown in FIG. 1 is of the rotatable cam, fixed cylinder type and the cylinder is fixed to a base member 14 which in turn is part of a more complete supporting frame.
  • a disc element 15 is supported for rotation in a fixed bearing ring 16 and provides the means for supporting the usual cam sections 17 and 18- the latter of which control selected jacks 19 by means of their butts 20.
  • the pattern selecting mechanism is of the Jacquard type and includes a pattern drum 21 which is continuously rotated about its axis 22.
  • the drum is provided adjacent each end with a plurality of sprocket teeth 23 evenly and radially disposed about the drum which in a known manner serve to advance an endless strip pattern or pattern card 24 having holes 25 along each side thereof into which said sprocket teeth are adapted to pass as said pattern card is advanced.
  • the pattern drum further includes a plurality of pairs of juxtaposed slots 26 which extend helically relative to the axis of the drum with the spacing between adjacent pairs of slots being greater than the distance between the individual slots of any of said pairs (FIG. 3).
  • the pattern card 24 is provided across its width with perforations formed in accordance with some desired pattern and said perforations are disposed in double rows 27 which are adapted to align with the pairs of slots 26 during advancement of the pattern card.
  • the double rows of perforations 27 are alternately arranged, that is to say, the perforations which are adapted to align with one of the pair of slots in the drum are disposed in spaced relation to and intermediate the perforations that are adapted to align with the other slot of that pair.
  • a plurality of selecting levers are pivoted at 28 (FIG. 1) and are adapted to slide radially of the machine for a short distance during the performance of their intended function.
  • the alternate levers are identified in FIGS. 1 and 2 by numeral 30 and the intermediate levers by numeral 31 and said levers include spring biased detents or feeler members which are depicted by numerals 32 and 33, respectively.
  • feeler member 32 and 33 are disposed in allochiral relation across the width of the pattern card 24 and as the latter is caused to advance feeler members 32 are caused to sense the perforations which align with one of the pair of slots 26 and feeler members 33 sense the perforations which align with the other slot of said pair.
  • the outer ends of the selecting levers 30 and 31 terminate in hook-like projections 34 and 35, respectively (FIGS. 1 and 2).
  • Coil springs 36 (FIG. 2) having one end attached to these projections and their opposite ends to a bracket 37 serve to continually urge the selecting levers toward their inactive position.
  • the inner ends of the selecting levers are slotted in the usual manner as at 38 in FIG. 1 and when said levers are selected they move a short distance inwardly toward the needle cylinder which places these slotted portions in the pathway of a lever control cam 39.
  • This cam is supported by a stud 40 that depends from the disc element 15 and as the latter rotates it moves the cam 39 through the slotted end of a selected lever pivoting it downwardly.
  • the lower inner end of a selecting lever contacts the outer end of a lifting lever 41 when actuated and the latter is pivoted at 42. This motion raises the inner end of the lifting lever which in turn elevates the jack 19 individual thereto to an active level.
  • the pattern drum In operation the pattern drum is caused to rotate continuously in a known manner and as a pair of slots 26 become aligned with the feeler members 32 and 33 the latter will enter their respective slots providing a perforation is present in the pattern card. Continued rotaion of the pattern drum will move the selected levers inwardly to be acted upon by the control cam 39 which in turn pivots the lifting lever that elevates the jacks 19 individual to said levers selected.
  • the various selecting levers are selected according to the perforations present on the pattern card which are formed in accordance with some desired pattern; however, due to the allochiral arrangement of the perforations and feeler members it is possible to select every selecting lever of a single pattern drum.
  • knitting instrumentalities operably carried in said cylinder and selecting means functioning upon said instrumentalities to move them from a non-selected to a selected position which includes:
  • each of said feeler members includes a selecting lever for transmitting the dictates of said strip pattern to said knitting instrumentalities.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
US648460A 1967-06-23 1967-06-23 Pattern selecting mechanism Expired - Lifetime US3425243A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US64846067A 1967-06-23 1967-06-23

Publications (1)

Publication Number Publication Date
US3425243A true US3425243A (en) 1969-02-04

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Application Number Title Priority Date Filing Date
US648460A Expired - Lifetime US3425243A (en) 1967-06-23 1967-06-23 Pattern selecting mechanism

Country Status (7)

Country Link
US (1) US3425243A (OSRAM)
JP (1) JPS4920818B1 (OSRAM)
BE (1) BE716993A (OSRAM)
CH (1) CH491230A (OSRAM)
DE (1) DE1760699A1 (OSRAM)
FR (1) FR1569426A (OSRAM)
GB (1) GB1214934A (OSRAM)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113293498A (zh) * 2021-05-14 2021-08-24 浙江百翔科技有限公司 一种具有电子选针功能的手套机

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2444894A (en) * 1945-09-27 1948-07-06 Jacquard Knitting Machine Co Inc Multiple selection pattern mechanism
US3012423A (en) * 1959-02-25 1961-12-12 Wildman Jacquard Co Machine for knitting patterned fabrics

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2444894A (en) * 1945-09-27 1948-07-06 Jacquard Knitting Machine Co Inc Multiple selection pattern mechanism
US3012423A (en) * 1959-02-25 1961-12-12 Wildman Jacquard Co Machine for knitting patterned fabrics

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113293498A (zh) * 2021-05-14 2021-08-24 浙江百翔科技有限公司 一种具有电子选针功能的手套机

Also Published As

Publication number Publication date
BE716993A (OSRAM) 1968-12-02
DE1760699A1 (de) 1971-12-23
CH491230A (de) 1970-05-31
JPS4920818B1 (OSRAM) 1974-05-28
FR1569426A (OSRAM) 1969-05-30
GB1214934A (en) 1970-12-09

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AS Assignment

Owner name: MAYER WILDMAN INDUSTRIES INC.,

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:MAYER, ROTHKOPF INDUSTRIES INC.;REEL/FRAME:004388/0989

Effective date: 19850326