US1833536A - Flat knitting machine with auxiliary device - Google Patents

Flat knitting machine with auxiliary device Download PDF

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Publication number
US1833536A
US1833536A US359087A US35908729A US1833536A US 1833536 A US1833536 A US 1833536A US 359087 A US359087 A US 359087A US 35908729 A US35908729 A US 35908729A US 1833536 A US1833536 A US 1833536A
Authority
US
United States
Prior art keywords
needles
frame
presser
frame needles
transfer points
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
US359087A
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English (en)
Inventor
Rottloff Oswin
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.)
FIRM A ROBERT WIELAND
Original Assignee
FIRM A ROBERT WIELAND
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
Priority claimed from DEW79258D external-priority patent/DE530834C/de
Application filed by FIRM A ROBERT WIELAND filed Critical FIRM A ROBERT WIELAND
Application granted granted Critical
Publication of US1833536A publication Critical patent/US1833536A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B11/00—Straight-bar knitting machines with fixed needles
    • D04B11/18—Straight-bar knitting machines with fixed needles for producing patterned fabrics
    • D04B11/22—Straight-bar knitting machines with fixed needles for producing patterned fabrics with stitch patterns
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B11/00—Straight-bar knitting machines with fixed needles

Definitions

  • the invention relates to an auxiliary devise for flat knitting machines by which both open work designs as well as tuck stitch designs or both together may be obtained.
  • the novelty of the present invention consists in using one and the same auxiliary device for the production of open work de signs as well as tuck stitch designs. By this means an essentially simpler construction of the machine is obtained on the one hand, and both kinds of designs may be produced on the same machine without detriment to the reliability of working on the other hand.
  • Fig. 1 shows certain principal operative parts of a flat knitting machine in sinking position
  • Fig. 2 shows the parts in press position
  • Fig. 3 shows the .pressing oil of the frame needles by means of the presser element while in press position
  • Fig. 4 shows the position of the parts immediately before the coverin process, i. e., the coming down of the trans er points;
  • Fig. 5 shows the action of the presser element on the transfer points for the purpose of making open work designs
  • Fig. 6 shows the arrangement of a presser element when .advanced into working position in relation to the frame needle
  • Fig. 7 is an enlarged section along the line VII-VII of Fig. 6;
  • Fig. 8 shows a modified form of presser element
  • Fig. 9 is an enlarged section along the line IXIX of Fig. 8.
  • Fig. 10 is an enlarged section along the line XX of Fig. 8;
  • Fig. 11 shows the pressing of the frame needle points by means of the presser element for the purpose of forming tuck stitch designs
  • Fig. 12 shows the pressing oflf of the frame needle from the transfer point by means of the presser element when producing open work designs.
  • FIG. 1 is the frame needle
  • 2 the frame needle bar
  • 3 the sinker bar
  • 4 the sinker
  • 5' the knock-off plate
  • 6 the transfer point
  • 7 the fashioning rack
  • 8 the presser elements
  • 9 the bed for the presser elements in which they are arranged so as to be individually movable
  • 10 is the presser edge of sinker bar 3 against which, as is known, the hooks of needles 1 are pressed when the old row of stitches is to be removed over the freshly run thread loops.
  • Presser elements 8, as already mentioned are fixed in bed 9 so as to be individually movable. In a known manner certain presser elements 8 (corresponding to the design to be worked) are raised in the direction of the arrow and this enables these to act upon the remaining working parts, especially frame needles 1 or transfer points 6.
  • Bed 9 is of course also arranged so as to be movable in the known manner in the frame of the machine, so that presser elements 8 on being raised may follow exactly the movements of the other working parts during the formation of the design.
  • U. S. Patent No. 939,328, to Salzer et al. may be taken as illustrative of the mechanism used to give the movement referred to.
  • presser elements 8 are provided, as shown in Figs. 6 and 7 on an enlarged scale, with a resting surface, for instance a groove a at their uper forwardly bent end, against which the rame needles or transfer points can rest, 2'. e.,
  • the presser elements 8' may be formed also according to Figs. 8 and 10.
  • a resting surface for instance a roove a for the frame needles.
  • the upper ackwardly bent end is however provided with a spoon-shaped cavity 6 (Figs. 8 and 9) into which the transfer points can be inserted during fashionlng.
  • needle bar 2 moves downwards as shown in Fig. 2, to withdraw its frame needles, and at the same time abuts against the presser edge 10 of sinker bar 3 to the extent that the hooks of the frame needles 1 are thereby pressed in and the old stitches on the frame needles slide over the hooks and are thrown off.
  • the freshly run threads loops are drawn through the old stitches and thus converted into a complete row of stitches.
  • the arrangement may be such that the frame needle bar together with the frame needles does not go as far as the presser edge 10 of the sinker bar 3 during pressing as in Fig. 2, but the hooks of the frame needles 1 are pressed by presser elements 8. All presser elements 8 which belong to such frame needles, which form the design and therefore must not press off, then remain in their normal position. All the remaining presser elements are raised.
  • the transfer points intended for the formation of the design are selected in a known manner.
  • the presser elements 8 corresponding to the deslgn are again'raised in such a manner that the raised presser elements 8 are brought with their upper ends within the field of the transfer points.
  • the transfer points are pressed into the cavities or grooves of frame needles 1, Fig. 5, and in the next following downward movement of the frame needles the transfer points 6 as well as presser elements 8 accurately follow the movements of the frame needles 1 until the stitches have slid from the frame needles on to the transfer points.
  • the presser elements 8 thereupon return to their position of rest, whilst'during the further descent of the frame needles 1 and transfer oints 6 the corresponding stitches are lifted rom their frame needles and suspended on other frame needles in the known way by corresponding movements of the frame needles and transfer points and by longitudinal displacement of the latter to the left or right.
  • the arrangement according to Figs. 8, 9 and 10 may be adopted if desired, in such a way that by means of the raised presser elements the transfer points 6 are prevented from inserting into the cavities or grooves of machine needles 1 and from lifting off the stitches from them.
  • the presser elements must be provided at their front bend with a resting surface, for instance a groove a against which when working with tuck stitch designs the hooks of the frame needles, or the frame needles themselves may rest, or into which they may enter.
  • the new idea of the invention of allowing one and the same auxiliary device to act both on the frame needles 1 and also on the transfer points 6 in the formation of designs, enables the most varied desi ns to be obtained, while the said idea is capa le of almost illimitable development.
  • this inventive idea greatly facilitates the decreasing or the increasing for the purpose of alterlng the form of the article as may be desired, and also the temporary putting out of action of certain groups of needles.
  • frame needles, transfer oints and presser elements said elements ing individually operable to press selected frame needles away from their corresponding transfer points, to such an extent that the stitches on the selected frame needles cannot be engaged by the transfer points, whereby plain work is produced at said selected needles while open work is produced at the other needles not thus pressed away.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
US359087A 1928-05-04 1929-04-29 Flat knitting machine with auxiliary device Expired - Lifetime US1833536A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEW79258D DE530834C (de) 1928-05-04 1928-05-04 Flachwirkmaschine mit aus einzeln bewegbaren Hilfsnadeln bestehender Mustervorrichtung

Publications (1)

Publication Number Publication Date
US1833536A true US1833536A (en) 1931-11-24

Family

ID=7610779

Family Applications (1)

Application Number Title Priority Date Filing Date
US359087A Expired - Lifetime US1833536A (en) 1928-05-04 1929-04-29 Flat knitting machine with auxiliary device

Country Status (4)

Country Link
US (1) US1833536A (fr)
AT (1) AT127635B (fr)
FR (1) FR674528A (fr)
GB (1) GB310928A (fr)

Also Published As

Publication number Publication date
FR674528A (fr) 1930-01-29
GB310928A (en) 1930-07-03
AT127635B (de) 1932-04-11

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