US2032152A

US2032152A - Flat warp knitting machine

Info

Publication number: US2032152A
Application number: US721616A
Authority: US
Inventors: Saupe Georg
Original assignee: Individual
Current assignee: Individual
Priority date: 1933-05-24
Filing date: 1934-04-20
Publication date: 1936-02-25
Anticipated expiration: 1953-02-25
Also published as: FR772549A

Description

Feb. 25, 1936. G. SAUPE FLAT WARP KNITTING MACHINE.

Filed April 20, 1934 2 Sheets-$heet 1 FIG. 4-

fan 272327;

7 (flaw I 0 9 2172,22 fliaorne/v Feb. 25, 1936.

G. SAUPE FLAT WARP KNITTING MACHINE Filed April 20, 1934 2 Sheets-Sheet 2 I Patented Feb. 25, 1936 UNITED STATES 2,032,152 v FLAT WARP KNITTING MACHINE Georg Saupe, Limbach, Germany Application April 20,1934, Serial No. 721,616 I Germany May 24, 1933 4 Claims.

This invention relates to a flat warp frame, in which at the knocking over moment the two needle rows are arranged relative to one another at an acute angle and the knocking over edgepiece of the sinkers is disposed rectangularly to the respective needles.

In fiat double warp knitting machines the needle row, at the moment when knocking over takes place, should be positioned, so far as possible, vertically to the knocking over edge of the adjacent sinkers, as otherwise the meshes to be knocked off will be displaced to a greater or lesser extent along the knocking over edge and the forces eflecting knocking over will become active relative to the needles obliquely to the longitudinal direction thereof with the result that the needles are bent. Furthermore, the course will be knocked over unevenly and defects in the fabric will be produced. Since the beak of the sinker should be preferably parallel to the opposite needle row, it was hitherto necessary to incline the needles to a considerable extent at the knocking over time, whereas they were to be as steep as possible during lapping.

In order to comply with these requirements the needle bars must carry out a swinging motion .during ascent, which demands a cumbersome gear system, because it is impossible to arrange the needle bar at the point forming the center of the '30 requisite swinging motion.

To avoid the above-mentioned drawbacks of knowndouble warp frames the invention provides at the knocking over edge of the sinker edges extending as parallel as possible to the longitudi- I 85 nal direction of the opposite needles a notch or a. corresponding deflection; so that the knocking .over edge-piece, in known manner, will be disposed vertically to the longitudinal direction of the a acent needles, but obliquely to the longidirection of the beak of the sinker.

- By wayof example, one form of the invention is illustrated in the accompanying drawings, inwhich Figure [shows the-position of the knitting tools at the time when the threads are placedon the 4'6 left needle row; Fig. 2, the knocking over of newly formed loops at the right-handrow or sinkers, the sinkers, in the same-way as in Fig. 1, being disposed outside the angular space enclosed by the needle bars; Fig. 3 shows the sinker bars arranged 80 between the needle bars; and Figs. 4 and 5 show modified forms of sinkers. 4

Referring to the drawings, the .two needle rows l and 2 are secured to theneedle bars 5 and 6 by the leads 3 and 4. Outside the angular space enclosed by the bars 5 and 6 the sinkers I and 8 are secured to the bars II and I2 by the leads 9 and I0. Above the sinker bars H and I! a plurality oi lapping machines are arranged, two machines l3 and I4 being shown in the construction illustrated. The presser 'bars are 5 omitted in the drawings for the sake of simplicity.

During the knitting process the two needle rows l and 2 carry out the usual motions both in their longitudinal direction and transversely thereto, and are slightly swung if necessary. In 10 known manner, the sinkers with their beards have to beadjusted now to the longitudinal axis of the opposite needle row and then again transversely to the adjacent needles, and for this purpose, according to the invention, the sinker beard 15 I5 is arranged so that its longitudinal direction is approximately parallel to that of the opposite needles, but extends for a short distance [6 with its top edge approximately vertically to the longitudinal direction of the appurtenant needles, so 20 that at this special edge portion the meshes can be knocked over in satisfactory manner according to Fig. 2. For example, the beard l5 of the sinkers I is disposed approximately parallel to the longitudinal direction of the needles {whereas 5 the edge portion l6 has an approximately vertical direction to the longitudinal direction of the needles I. correspondingly, in the sinkers 8 the beard I5 is approximately parallel to the longitudinal direction of the opposite needles I while 0 the edge portion I6 is arranged approximately vertically to the longitudinal direction of the adjacent needles 2. The knockingover edges N5 of the sinker beards l5 are then perfected either by the provision of notchlike recesses (Figs. 1 to 3) in the upper sinker edge or by projecting noses 20 on the latter (Fig. 5).

'In addition to the beard ii, the sinkers 'I and 8' possess an enclosing nose I! disposed approximately parallel to the beard l5 of the respective 40 sinker. At their free ends the sinkers 1 and 8 are kept at the proper distance from one another by the leads l8.

Instead of disposing the sinkers I and 8 outside the space limited by the needle bars 5 and 6, they could be arranged also between the'needle bars, as shown in Fig. 3. Even in this case, the enclosing throat IQ of each. sinker l and 8' should be arranged approximately in the longitudina1- direction of the opposite needles'and in the portion of the sinker edge adjacent to the enclosing throat apart It should be provided approximately vertically to the longitudinal direction of the adjacent needles.

Instead of providing for the bend in the sinker 5 angle to one another; and sinker bars and sinkmust'be moved relative to one another in such a way that knocking over is effected within the enclosing throat.

I claim: Y

1. A warp knitting machine comprising needle bars; needle rows secured to said bars and at knocking over time being disposed at an acute ers secured to said bars, each of said sinkers having a throat, the lower edge of which forming the upper edge of the beard of the sinkers being arranged approximately parallel to the stems of the opposite needles deflection and a part of said deflection forming the knocking over edge-piece being extended apa m ma with a proximately at right angles to the stems of the adjacent needles.

2. A warp knitting machine according to claim 1, in which the deflection of the lower edge of the sinker throat formed by a notch.

3. A warp knitting machine according to claim 1, inwhich the deflection of the lower edge 01' the sinker throat is formed by a projection.

4. A warp knitting machine according to claim 1, in whiehthe deflection of the loweredge oi the sinker throat is formed by inclining the throat at its upper end.

- GEORG SAEJPE.