US2152136A - Thread guide - Google Patents

Description

March 28, 1939. RCASS 2,152,136

THREAD GUIDE Filed June 20, 1958 free/72am was,

Patented Mar. 28, 1939 UNITED STATES THREAD GUIDE Freeman Cass, Trenton,

N. J a'ssignor to Mitchell Bissell Company, Trenton, N. .L, a corporation of New Jersey Application June 20,

4 Claims.

This invention relates to a thread guide for textile machines and a support therefor.

The invention aims to provide a thread guide and a wire support for the same so arranged and constructed that the "guide may be easily and quickly removed from or inserted in the support and in which the parts may be assembled and held in position without the use of wax, shellac, or the like. More specifically, the invention contemplates a thread guide having a base portion and an eye or hook to receive the thread, the base portion on opposite sides having grooves in which the wire of the support is adapted to be yieldably and removably received so that the guide will be firmly held on the wire support and at the same time be readily removable therefrom to permit renewal of the guide. I

The invention is illustrated in two forms in the accompanying drawing, constituting a part hereof, and in which:

Figure 1 is a side view of one form of guide and support therefor; I

Figure 2 is a vertical section substantially on the broken line 2-2 of Figure 1;

Figure 3 is a perspective view of the guide and support separated from each other;

Figure 4 is a side view similar to Figure 1 showing a slightly different form of device;

Figure 5 is an elevation of the arrangement shown in Figure 4, as seen from the left in the latter figure; and

Figure 6 is a plan view, partly in section, of the guide shown in Figure 4.

Referring to Figures 1, 2, and 3, the guide I0 is provided with a thread receiving eye IIIA and a base portion IOB which is adapted to be engaged by the wire support II fastened to a part I2 of the textile machine. On opposite sides thereof the base portion IIlB of the guide is provided with vertical parallel grooves IUC. These grooves constitute means by which the guide is adapted to engage with the wire support II,

The wire support II is made of resilient metal and is shaped or bent as illustrated particularly in Figure 3 to provide a yieldable holder or seat for the guide Ill. To form such holder the wire is bent to provide vertical substantially parallel portions or fingers IIA which are so spaced and arranged as to engage in the vertical grooves IDC of the guide when the guide is forced upwardly or downwardly between said fingers. Rearwardly of the fingers or portions I IA the wire is bent rearwardly and downwardly to form spaced portions IIB which are spaced from each other and also from the portions HA. The por- 1938, Serial No. 214,823

tions II B are preferably arranged to engage the rear end of the base IUB of the guide to act as a stop and assist in firmly securing the guide Ill in the holder. Below the portions IIA the wire support I I is preferably bent rearwardly and then downwardly and then forwardly as illustrated at IIC so that the wire support will serve to hold the guide It in proper position relative to the part 12 of the machine to which it is attached. The lower end of the wire support II is preferably formed with an open eye I ID which can be readily engaged under the head of a set screw HE and fastened in position without the necessity of entirely removing the screw from its socket.

To assemble the parts of the device, the guide I0 is forced downwardly or upwardly between the portions or fingers IIA of the holder with said portions IIA engaging in the grooves I00 on opposite sides of the guide. The rear end of the guide preferably engages the portions IIB of the holder which assist in holding the guide against rearward movement in the holder. The guide is thus maintained firmly in position on the support and at the same time it is yieldably held so that removal or replacement of the guide may be accomplished without difiiculty.

In the arrangement shown in Figures 4, 5, and 6; the lower portion of the wire support I I is the same as that previously described. In this arrangement, however, the base portion IllB of the guide is provided adjacent its rear end with a shallow groove IIlD which preferably extends entirely around such base portion and is preferably shaped in the form of a screw thread. The upper end of the wire support in this construction is formed into a small coil of two or three turns, as indicated at HF, and this coil is of such size as to receive therein and firmly hold the rear end of the guide Ill with one or more turns of the coil resting in the'groove IUD of the guide. At the rear of the coil IIF the wire is bent so as to project laterally across the coil as indicated at IIG, which forms a stop portion to limit the insertion of the guide I ll in the coil IIG. By

forcing or rotating the end of. the guide I!) into the coil and against the stop portion IIG the turns of the coil are slightly expanded and due to the resilience of the metal, they contract into the groove IUD of. the guide and thus firmly but releasably hold the guide in position on the support II.

In each form of the device it will be noted that the grooves on the guide are arranged adjacent the rear end of the guide and extend in a direction transverse oi the longitudinal axis of the uide.

Modifications of the structure as described may be made within the scope of the invention.

Having thus described the invention, what is claimed as new and desired to be secured by Letters Patent is:

1. In a thread guide device, in combination, a guide having a base portion and a thread receiving eye, said base portion having grooves on opposite sides of the surface thereof adjacent its rear end, and extending transversely of the lon gitudinal axis of the guide, a supporting wire for said guide formed of resilient material and having one end thereof shaped to form a holder for said guide, said holder having portions yield ably engaging said grooves on opposite sides of said guide and a portion arranged to engage the rear end of the guide.

2. In a thread guide device, in combination, a guide having a base portion and a thread receiving eye, said base portion having a groove on each side thereof, said grooves being arranged parallel to each other and extending transversely of the longitudinal axis of the guide, a. supporting wire for said guide formed of resilient material and having one end thereof shaped to form a holder for said guide, said holder having two substantially parallel spaced yieldable portions adapted to engage in said grooves of the guide and also having one or more portions spaced rearwardly from said first named portions and arranged to engage the rear end of said base portion of the guide.

3. In a guide device, in combination, a thread guide having a groove on each side thereof arranged substantially parallel to each other and extending transversely of the longitudinal axis of the guide, a holder for said guide formed of resilient Wire bent to form two spaced fingers engaging in said grooves of the guide and further bent to form one or more portions which engage the rear end of the guide positioned between said fingers.

4. A holder for a thread guide of the kind having an eye and a base portion provided with a transverse groove on each side thereof, said holder being formed of resilient wire and com-o prising two parts, one part forming a resilient supporting arm and the other part forming a guide engaging portion, said guide engaging portion including two spaced parallel fingers arranged substantially parallel to said supporting arm and adapted to engage the grooves on opposite sides of the guide base, and also including two spaced stop fingers, also arranged substantially parallel to said supporting arm and adapted to engage the end of the base, said last named fingers. being spaced laterally from each other and also spaced rearwardly from said first named fingers.

FREEMAN CASS.

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