US1847498A - Flat hosiery frame - Google Patents

Description

March-1, 1932, A` RICHTER 1,847,498v

` FLAT \HosIERY FRAME March 1, 1932. A. RlCHTER i 1,847,498

FLAT HOSIERY FRAME Filed March 12, 195o 2 sheets-sheet 2 gms@ Patented Mar. 1, 1932 'PATENT OFFICE ARTHUR`RICHTER, OF IBERBISDORF, GERMANY FLAT EOSIERY FRAME Application filed March 12, 1930, Serial No.

The present invention relates to a flat hosiery frame.

According to my application Ser. No. 207

216, filed July 20, 1927, Patent No. 1,794,247, the sinker bar together with the sinkers, the presser bar and the knocking over bits are moved up and down parallel to the needles in order to save time with respect to the various cycles of operations, to accelerate the operations of said parts and to diminish the inertia forces of these parts to a minimum. However, the movable disposition of the sinker barcan be utilized also to advantage in other respects, namely, by moving it up and down obliquely and 'not parallel to the4 needles, this oblique motion to be carried out either rectilinearly or in a .curved path. It has been proposed already to move the sinker bar horizontally to and fro, but it is new to combine this horizontal motion with a vertical one in such a way that reliable working of the knitting tools is insured im@ spite of the compound motion. This is attained vby moving the sinker bar up and down in an inclined guide or. by oscillating it about laterally arranged pivots fixed to the machine frame.l

Two embodiments of the invention are illilstrated in the accompanying drawings which show only the most important machine elements with whose drive every expert is' familiar.

The drawings show in Figure .1 ya cross section through the head of a flat hosiery frame wherein the sinker bar moves up and down in anv inclined guide, and Figure 2 is a similar view showing how the sinker bar swings around a point on the rear part of the machine.

The needle bar with its needles 1 moves up and down in the usual way -while the sinker bar v2 with the sinkers 3, which areI disposed in the bar 2 so as to be horizontally displaceable, the presser bar 4, and the knocking over bits 5 are moved up and down in an inclined path. In the modification shown the machine frameis provided for this purpose with the guides 15 in the grooves of which the corresponding blocks 16 can be displaced up and down in an inclined path and are firmly con- 435,267, and in Germany March 14, 1929.

nected with the sinker bar 2. Drive is transp mitted by a guide rod 8 moved up and down in the known manner by a lever 7 and adaptedl to adj ust the sinker bar correspondingly. Movement takes place in two steps, theisinker bar being lifted out of its lowest position at first only as far as required :for the pressing process, whereupon, during further lifting, the other operations including knocking over are carried out,- the last-mentioned operation taking place while the sinker bar is in its highest position. With this up and down movement a horizontal reciprocating. motion of the sinker bar is connected owing to the inclined position of the guide path on the guides 15. The result of this arrangement is that the presser bar 4 is, during the pressing step, comparatively close to the needlerange and that the sinkers, on account of the movement of theA sinker bar 2, are brought towards the facing bar 20 and need not be displaced the same distance as otherwise required relative to the sinker bar. In this way the latter takes away part of the motion of the needles 1 as well as of the s ink- 75 ers 3, which is extremely advantageous. Besides, the thread guide carrier 17 also participates in its movements insofar that it still remains -rmly connected with the sinker bar and which is provided in its upper porso tion with an auxiliary guide 18, 19 adapted to the main guide 15, 16.

It is not absolutely necessary to gpide the sinker bar 2 in a straight path. As ig. 2 1ndicates, it can be oscillated also about the 35 journals or pivots 21 which are firmly secured to the machine frame'. In this case, the first part of the upward motion would take place approximately parallel to the needles 1 so that the presser bar remains within their 90 range and, for pressing purposes, the needles need not be moved too far towards the presser bar 4, while, during the last partof its upward motion, the sinker bar 2 1s inclined back to such an extent that the sinkers 3 pro- 95 ceed out of range of the needles 1 and the knocking over motion of the comb 5 is aided. The dotted lines of Fig. 2 of the drawings represent the loop sinking osition .of the machine. The sinkers in this position have beendriven farthest and :form the stitch loops. When the loop sinking has been completed the machine starts the backwardA movement, whereby the sinker head 2 is guided upwardly at such a slant that the sinkers will in themselves be brought back from the sinker head and thereby the movement of the sinker casing 20 will be sh0rtened. The full lines indicate the other position of the various parts.

I claim 1. Flat common hosiery frame comprising in combination 'a plurality of needles, a plurality of sinkers, a sinker bar adapted to be moved up and down, and means for guiding the sinker bar obliquely to the direction of motion of the needles in a rectilinear path, the `sinker bar taking over a part of the movement of the needles and sinkers.

2. In the combination according to claim l a stationary shaft arranged behind the sinker bar, a presser bar, and knocking over bits, the sinker bar together with the said presser bar and knocking over bits being oscillated about the said shaft.

3. Flat common hosiery frame comprising in combination a plurality of needles,a plurality of sinkers, a sinker bar adapted to be moved up and down, and means for guiding the sinker bar obliquely to the direction of motion of the needles in a curved path, the sinker bar taking over a part of the movement of the needles and sinkers.

4. In the combination according to claim 3, a stationary shaft arranged behind the sinker bar, a presser bar, and knocking-over bits, the sinker bar together With the said presser bar and knocking-over bits being oscillated about the said shaft.

5. Flat common hosiery frame, comprising in combination a plurality of needles, a pluy rality of sinkers, a sinker bar adapted to be moved up and down, and means'for guiding the sinker bar obliquely to the direction of motion of the needles, the sinker bar taking over a part of the movement of the needles and sinkers.

In testimony whereof I have aixed my si gnature.

` ARTH RCHTER.

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