US1217411A - Hosiery-frame. - Google Patents

Description

F. CECKA.

HOSIERY FRAME.

APPLICATION FILED OCT. 16. 1915.

Patented Feb. 27, 1917.

UNITED STATES PATENT OFFICE.

FRANZ CECKA, OF CHEMNITZ, GERMANY, ASSIGNOR TO THE FIRM OF SCHUBERT & SALZER MASCHINENFAIBRIK, AKTIENGESELLSCHAFT, OF CHEMNITZ, GERMANY.

HO SIEBY-FRAME'.

Specification of Letters Patent.

Original application filed J'u1y'22, 1914, Serial No. 852,417. Divided and this application filed October 16,

4 1915. Serial No. 56,247.

4 hereby declare the following to be a full,

pawl and ratchet mechanism.

clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, this being. a division of my application, Serial No. 852,417, filed July 22, 1914.

My invention relates to improvements inv hosiery frames, and more particularly in the mechanism for reducing and increasing the inward stroke of the thread guide.

When making reinforced portions in knitted goods on flat hosiery frames the inward stroke of the thread guide is limited by means of fixed stops which correspond to the desired breadth of the reinforced portion. By means of such a mechanism only reinforced portions can be made which have straight border lines, while it is not possible to make fancy reinforced portions.

In my copending application Serial No. 852,417 I have shown and described a mechanism by means of which fancy reinforced portions can be made such mechanism consisting in a pair of stop members each adapted to arrest either one of a pair of thread guides and formed on adjacent sides with rack teeth, a pinion arranged between said stop members engaging in .the teeth of the racks so as to shift the stop members in opposite directions upon being operated by a However, with the mechanism described in the said application only such reinforced portions can be made in knitted goods which are of equal breadth all over. In order to be able 'to gradually increase the reinforced portions to any desired point and to reduce them there after and, if desired, increase them again, the mechanism disclosed in said application has to undergo a certain change which shall hereinafter be explained.

The preferred form of a mechanism according to the present invention is represented in the drawings aflixed to this specification,

showing the heel and sole of a stocking made with reinforced portions, and

Fig. 2 a front view showing the modified form of the mechanism by means of which reinforced portions of the form shown in Fig. 1 can be made, in which the breadth of the reinforced portions is increased, from the point E to the point F, and from E to F, whereupon the breadth remains unchanged along the lines FG and F'G', and finally the border lines of the reinforced portions are directed outward and at an angle to the line FG along the lines G-H and GH' according to the increase in the breadth of the blank.- Thereafter the border lines follow parallel lines HI and HI,

whereupon they are again directed angularly' and inward along the lines I'K and I'K". Thereafter they follow parallel lines K-L and K'L, and finally they are directed angularly and toward the middle M of the blank.

In addition to-the'usual thread guides provided for knitting the non-reinforced parts of the work thread guides 3 and 4 are provided, which cooperate'with the said usual thread guides in knitting reinforced portions, as is known in the art. For clearness sake only the thread guides 3 and 4 have been shown, which are secured in the usual way to thread guide bars 1 and 2. The strokes of the bars 1 and 2 are limited at the outer side of the frame by means of stop members 5.

To the thread guide bar 1 a stop arm 6 is secured and to the thread guide bar 2 a stop arm 7.

To a shaft 8 a pinion 9 is keyed which is rigidly connected with ratchet wheels 10 and 10. the diameters of which are larger than that of the pinion. The teeth of the wheels 10" and 10" are cut in opposite directions. The pinion 9 is in mesh with racks 11 and 12 which are guided in suitable bearings 13. The racks 11 and 12 which are in engagement with the pinion 9 are each providedwith a single stop 14' and 16 respectively mounted at opposite ends of the racks. Apush rod 20 slidably mounted in suitable guides is constructed with transverse arms 20", 20" to which push arms 36 and 37 are 'jointed which are connected with links 27' and 27" respectively.

To the lower end of the push member 20' a pivot bolt 23 is secured which provides a support for a sleeve 24' which is non-shiftable thereon and is always in the path of a cam 29 keyed to a shaft 28 On a pivot bolt 38a rocking lever is mounted which consists of two arms 39 and 41. 'To the arm 39 of the said rocking lever a-pin 40 is secured which is located in positionfor engagement by the push rod 36, and to the arm 41 of the lever a pin 42 is secured which is in position for engagement by the push rod 37. The arm 39 carries a pawl 22 which bears on a pin 21, and the arm 41 carries a pawl 22" which bears on apin 21". Normally the ratchet Wheels 10', 10 are looked as against rotation in both directions by means of the pawls 33 and 33", and they are adapted to be released upon operation of the arm 39 or 41 by rods 35 and 35".

The operation of the mechanism is as follows:

By means of the cam 29' the push member 20 is continuously reciprocated in vertical direction. The push rods- 36 and 37 are' normally in such positions, that they do not engage the pins 40 and 41. By means of a .suitable counting mechanism such as a jacsoiquard pattern, a narrowing chain, or the like, the push rods 36 and 37 can be rocked to the right and in the direction of the arrow shown in Fig. 2. For example, if the push rod 36 is shifted to the right by the link 27', it engages the pin of the arm 39 whenthe push rod 20' is moving upward.

Thereby the pawl 22, is forced toward the ratchet wheel 10" so as to advance the same. Thereby the rod 11 is shifted to the left and 40 the rod 12' to the right, so that the stops 14 and 16' are approached to each other, the

thread guide bar 1 can move farther to the left and the thread guide bar 2 farther to the right, and the thread guides 3 and 4 are moved toward each other. Thereby the reforced portions EF and EF. can be made the border lines of, which are directed at an angle inward.

If on the other hand thepush member 31 so is shifted to the right by means of the link 27", it acts on the pin 42 0f the arm 41, and

- a pair of parallel rods each having a stop and ratchet mechanisms.

taxman by the reinforced portions can be made so as to be directed with their border lines 'an'gularly and outward, as is shown in the parts GH and (i -H. It ';will readily be understood that by. setting the counting mechanism the stops can be moved in one or the other direction or stopped according to the desired form of the reinforced portion. Y

I claim herein as my invention:

-1.' In a hosiery frame, the combination with a pair of thread guides having reciprocating movements in opposite directions, of

arranged for cooperation with one of the thread guides and formed on adjacent sides with rack teeth, a pinion engaging said rack teeth and adapted to shift the rods in opposite directions, pawl and ratchet mecha: nisms, adapted to rotate said'pinion in opposite directions, operating means moving in one direction, and means to connect said operating means with either one of the pawl 2. In a hosiery frame, the combination with a pair of thread guides having reciprocating movements in opposite directions, of

a pair of parallel rods each having a stop.

arranged for cooperation with one of the .thread guides and formed on adjacent. sides 4 with rack teeth, a pinion engaging said rack teeth and adapted to shift the rods in opposite directions, pawl and ratchet mechanisms adapted to rotate said pinion in opposite directions, operating means moving in one direction, a rocking lever carrying said pawls at opposite sides of its fulcrum, and means to throw said operating means into position for rocking engagement with said rocking lever at either one of its ends.

In testimony whereof I hereunto affix my signature in the presence of two witnesses.

. FRANZ OECKA. Witnesses: Y Y

W..H. Mmem, M. Ro'rHE.

Images