US527674A - Chinenfabrik seyfert - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1.

H. DIONINIER.

TRANSPBRRIN G APPARATU SFOR KNITTING MACHINES. I No. 527,674.. Patented Oct. 16, 1894.

(No Model.) 2 Sheets-Sheet 2.

H. BONNER.

TRANSFERRING APPARATUS FOR KNITTING MAOHINES. No. 527;674. Patented Oct. 16,1894.

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m: nomus PETERS co. mo'rouma, wnsnluq'ou. n. c.

UNITED ST TES PATENT OFFICE.

HERMANN DONNER, OF CHEMNITZ, GERMANY, ASSIGNOR TO S TRICIQMAS- CHINENFABRIK SEYFERT & DONNER, GESELLSCHAFT MIT BESOHRANK- .TER HAFTUNG, or SAME PLACE.

TRANSFERRING APPARATUS FOR KNITTING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 527,674, dated October 16, 1894; Application filed December 27, 1893. Serial No. 494,915. (No model.) Patentedin Germany May 2, 1893 No. 71,482.

To a, whom it may concern.-

Be it known that I, HERMANN DONNER, a

subjectof the King of Saxony, and a resident of Ohemnitz, in the Kingdom of Saxony, Gen

5 man Empire, have invented a new and useful Transferring Apparatus for Knitting-Machines, (for which I have obtained a patent in Germany, No. 71,482, datedMay 2, 1893,) of which the following is an exact specification.

to This invention relates to an apparatus by means of which mesh-work may be transferred to the needles or needle-rows of knitting-machines, the object being to dispense with the direct transfer, as done hitherto,

I 5 and to prevent the inconveniences resulting therefrom.

In order to make my invention more clear, I refer to the accompanying drawings, in which similar letters and figures denote simi- 2o lar parts throughout the different views, and

in which- Figure 1 shows a vertical cross -section through the new transferring apparatus. Fig. 1 shows also a vertical cross-section through 2 5 a part of the transferring-apparatus, taken on another plane than, but parallel to, that of Fig. 1. Fig. 2 is a perspective view of the transferring-apparatus. Fig. 3 shows the reversed heads of the transfer-needles, and a vertical cross-section through the upper part of the two needle-beds of a knitting-machine.

Fig. 4 shows the transfer-apparatus reversed for use, and placed onto the cam-guides of aknitting-machine, the whole being in vertical 3 5 cross-section. Fig. 5 shows a side-view of an auxiliary device, by means of which the needles of the transfer-apparatus may be moved,

or raised and lowered respectively, for the purpose of conveying the meshes from the needles of the transfer-apparatus onto the needles of the knitting-machine. Fig. 6 shows a front-view of the same auxiliary-device, the needles being removed. Fig. 7 shows a set of cams of aknitting-machine. Fig. 8 (a, b and 0) shows a front view, longitudinal section,

and back-view of the head of one of the trans-- Before entering into the details of construction, I think it well to remark, that, when working with knitting-machines,it becomes necessary in many cases to bring the side-byside lying meshes of mesh-work onto the sideby-side lyingneedles of the knitting-machine. 5 5 If, for instance, plain socks are to be provided with borders consisting of one and one or two and two ribbed work, these borders must first be made on a ribbed-top-machine, and they are then transferred onto the knitting-machine proper t'or forming the plain socks upon them by knitting; or if, further, stockings with ribbed lengths and plain feet are to be made, the lengths are first knitted on a ribmachine, then transferred to a plain-knits ting machine, and the stockings finished by knitting the feet directly to said lengths;

or if, plain lengths of stockings are to be provided with heels and feet, the said plain lengths must be taken off the knitting-ma- 7o chine, and after being turned ninety degrees must be put on again, because said heels and feet, on account of the process of narrowing, require another position than the lengths with regard to the machine. A transfer of '7 5 meshes is, thus, necessary in each of these cases as well as in similar ones, and, as the said transfer could be performed but by hand hitherto, much time as well as 7 money was lost, especially if power knitting-machines with several heads were employed.

. The new transferring-apparatus by means of which these drawbacks shall be avoided consists of two needle-beds a 6, Figs. 1 and 2, similar to those of a knitting-machine, which are connected by two front-walls 0. These latter are connected with each other by a rib cl having a groove d. The said two needlebeds are provided with parallel grooves for the reception of the transfer-needles e e, the latter being formed by small wire-rods having each a bent projection or foot e like that of a knitting-needle proper, and having, further, each at its under end a spring 6 for prevent-- ing the needle from spontaneous or undue movements. The said spring may be attached to the transfer-needle, or may be made in one piece therewith, as shown in the drawings. The upper part or head of each needle is.

somewhat enlarged (Fig. 8, a, b and c), and too is provided within said enlarged part with a groove 3, the bottom of which has a longish hole or eye at. The end proper of the head is beveled, the point formed thereby being directed to the outside.

For the purpose of bringing the meshes to be transferred onto the needles of the transferring-apparatus, the latter is placed on a tablef (Fig. 2),the front-edge of which has a ledge f. The apparatus is brought into an inclined position by means of a block of wood or the like, placed behind it the incline being chosen so that the needles of one row (for instance of row e Fig. 2) are in a vertical or nearly vertical position. After this, the meshes are put onto the projecting heads of the transfer-needles as follows: If, for instance, a sock is to be knitted to the ribbed length w, Fig. 2, the workman begins at the middle needle of row a, that is to say, mesh w is put on the middle needle, mesh Z02 on the next needle on the left of the former, and so on, until (if the whole breadth of the work contains 38 meshes) mesh 20 is put on the last left hand needle. The apparatus is turned then in such a manner, that the needles e of the other row are placed in a vertical or nearly vertical position, and the meshes w to 20 of the opposite rim Ol border of the work are put now on the needles of row e.

In order to be able to bring the mesh w and two or three meshes following it on the respective needles of row e, it becomes necessary to draw these needles a short way backward. If the said needles should during that time project as far as usual, the meshes could not be placed onto them. These first needles of row e are, therefore, without springs at their under ends, (Fig. 1*) so that they may be easily drawn downward by the workman. After the meshes w to 10 have been put into place, the apparatus is turned again, 2'. e., the needles of row 6 are brought to their former vertical or nearly vertical position, and the meshes 10 to w of the last quarter of the work-piece w are put onto the remaining needles of row 6. It is also now necessary to employ for the righthand part (Fig. 2) of row e some needles without springs (Fig. l) for afiordin g the possibility of bringing mesh 10 and two or three meshes following it onto the said needles. After all the meshes of the border of work-piece w have been put in place on the transferring-apparatus, the latter is turned upside down, so that the work hangs down from the needles, as shown in Fig. 3. The whole, when in this position, is brought over the knitting-machine proper (Fig. 4), and the work-piece is let down between the two beds g g, one (9, Fig. 3) of these being lowered during this time for atfording an easier passage. The angular projections h of the transferring-apparatus are placed on the guide-bars h of the knittingmachine, so that said apparatus is carried by the latter, and a weight g is attached to the Work-piece w by means of a comb 9 The transfer-apparatus, while being vertically lowered, is adjusted so that each of its needles meets a needle of the knitting-machine, and the hooks of the latter enter the eyes of the transfer-needles. The work may then be transferred by an appropriate movement of the needles, as will be more fully described hereinafter.

If, for instance, the needlesi z" are to be moved, or raised and lowered respectively, by means of the needles e e, an auxiliarydevice consisting of aframe (Figs. t to 6) with trianglar cams Z m (Fig. 5) on the inner sides of its two angular arms is employed. This auxiliary device is shoved upon, or connected with, the transferring-apparatus and is held on the same in proper position by an angular projection 70', catching into the groove 01 of rib cl. tVhen frame 70 is moved across the transferring-apparatus, the feet 6 of the transfer-needles are caught by the triangular cams Z m, and they are raised and lowered by means of the ascending and descending groove formed by said cams Zm. Therefore, also the needles t t" are moved in a corresponding manner.

Suppose needle 6 (Fig. 4) be moved in the direction indicated by arrow 6, the extremity 2 of said needle will catch the hook of needle 11 (Fig. 4:), thus drawing the latter upward through the mesh 'w. This mesh is thereby transferred from needle 6 to needle 2'. Needle e, which had been raised by cam Z (Fig. 5) is lowered then by cam m, and the rear part 1 (Figs. 9 and 10) of the head of needle 6 strikes on the hook of needle 6, which thus is pushed down into its former position, and mesh to, being held back by the rim of the respective needle-bed, enters the hook of needle t' (Fig. 11), and the sloping extremity 2 of needle e passes the mesh, so that, when all meshes have been automatically transferred in the manner described, the transferring needles 6 6' may be disengaged from the knitting needles 1; t by lifting the transferring-appa ratus in a vertical direction, as indicated by arrow 9 in Fig. 11. If, however, the transfer of the meshes is to be performed not by the transfer-needles proper, but by the needles of the knitting-machine, the common cams, that is to say, cardigan-cams n 0 (Fig. 7) are used, the middle triangular cam 17. of which may be lessened in height by removing its upper part it. The needles it" are moved now upward by the cam n, so that the book of each knitting-needle strikes against the part 1, Fig. 12, of the transfer-needle belonging to it, thus pushing the latter upward. The heads of both the needles, 1'. a, the eye of needle e and the hook of needle t, pass the mesh, the latter thus being transferred. Needle t' is moved downward then by cam 0, and the hook of it catches the extreme part 2 (Fig. 13) of needle e, so that the latter is also drawn downward a corresponding distance (Fig. 14:). Now, in order to separate the needles or needlerows respectively, it

becomes necessary to lift the needles i 71 again, but only so far as is necessary to bring the hooks of said needles into the middle of machines, the combination with two grooved beds a b, inclined toward each other, movable needles 6 e in the grooves of said beds, said needles having bits e of a displaceable frame 70, having cams Z, m, to engage with bits e of said needles, the fore parts of the 'needles of one set crossing the fore parts of the needles of the other set, said parts adapted to receive the meshes to be transferred, and having enlarged heads with elongated eyes adapted to be coupled to the hooks of the needles of a knitting machine, for the purpose as described.

In testimony whereof I have signed this specification in the presence of two subscribing Witnesses.

HERMANN DONNER.

Witnesses:

REINHARD SEYFERT, REINHOLD KRETZSCHMAR.

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