US1513112A - Supporting device for axminster tube frames - Google Patents

Description

Oct. 28 1-924. 1,513,112

E. R. HOLMES SUPPORTING DEVICE FOR AXMINS'IER TUBE FRAMES Filed Aug. 10, 1922 Patented Get. 2%, 1924.

ELBRIIDGE R. HOLMES, OF WORCESTER, MASSAGHUSETTS, ASSIGIQ'OR TO CBOIVIPTON z KNOWLES LOGZE "WORKS. 1%. CORPORATION 0F MASSACHUSETTS.

SUPPORTING DEVICE AXMINSTER TUBE FRAMES.

Application filed August 10. 1922. Serial No. 580,892.

r 0 (ZZZ whom it may camera:

Be it known that I, ELBRIDGE R. HoLM'Es, a citizen of the United States, residing at iVorcester, in the county of Worcester and State of Massachusetts, have invented a new and useful Supporting Device for r'ixminr Tube Frames, of which the following is a specification.

This invention relates to a novel construction by which the tube frames in an AX- ininster loom may be securely supported by the transportingchains and by the use of which accidental displacement of the frames during movement thereof will be effectively prevented. An example of sucha loom is found in the U. S. Patent to Vi yman No. 490,238 of 1893. y

These tube frames are used in large numbers in such looms and are often of very considerable weight, sometimes exceeding twenty pounds per frame in wide looms. These tube frames are detachably mounted upon transporting chains by which they are presented in proper sequence at the point where they are separately released from the chains to insert the tuft yarn in the fabric It has been customary to connect the tube frames to the transporting chains by sheet metal springs which at all times formed the entire support for the frames. As the width of Amninster looms has increased, with corresponding increase in the weight of the tubes, the strain upon the supporting hooks has become severe, and broken and detached hooks have frequently resulted.

It is the object of my invention to provide additional or auxiliary supporting devices by which the tube frames may be safely and securely transported without the possibility of accident displacement and without placing an undue or continuous strain upon the supporting hooks.

My invention further relates to arrangements and combinations of parts which will be hereinafter described and more particularly pointed out in the appended claims.

A preferred form of the invention is shown in the drawings, in which- Fig. 1 is an end View of a number of tube frames and a portion of a transporting chain;

Fig. 2 is an enlarged end elevation of one of the tube frames, with parts of a chain indicated in dotted lines;

3 is a side elevation thereof; Figs/1, 5 and 6 show a tube frame and a portion of a chain in difierent angular resprocket wheels, as shown and described in the VVyman patent above noted.

One of the sprockets 14 (Fig. 1) is supported directly over the point at which the yarn tufts are inserted in the warp. The chains are intermittently advanced to suecessively present the tube frames in operative position. When a tube frame is in the position indicated at 10 (Fig. 1), the springs 12 are pressed inward to detach them from the chains l3'and the tube frame is then given the necessary movement to insert the tuft yarn in the Warp. The frame is then returned to its original position and is again attached to the chain by the springs 12.

This tube frame is then removed from operative position "by the advance movement of the chains and is transported through a long and irregular path of travel before it again returns to operative position. To relieve the severe strain upon the hooks 12 during this transporting movement, I have provided the auxiliary supporting devices shown in the drawings. On each side of the upper portion of each hanger 11 I provide notches or recesses 15 forming shoulders 16, well shown in Fig. 5. The transporting chains 13 are commonly formed of alternate single links or block 17 and double links 18 secured on each side of the blocks 17. The teeth of the sprocket wheels are notched or recessed and engage the chain on each side of the single links. The sprockets are also cut away between the teeth to provide clearance for the ends of the hangers 11.

I have also provided extensions 19 at each end of each block 17 adapted to engage the hangers 11 under the shoulders 16 when the tube frames are out of the position shown at in Fig. 1. When the chain is traveling in a substantially straight run, as indicated in Fig. 6, the projections 19 and the notches may be so related that the hooks 12 will be lifted slightly above the links 18, thus supporting the hangers directly upon the chain blocks.

When the links are in the angular position shown in Fig. 5, the projections 19 are sufiiciently separated to permit easy removal and insertion of the hangers between the ends of the projections but in every other position at least one of the projections will engage one of the shoulders 16, as indicated in the different positions in Fig. 1, and will prevent-separation of the hangers from the chains, entirely independent of their attachment by the hooks 12. The position of the hangers when traveling over a guide sprocket on the inside of a curve is indicated in Fig. 4.

It is the common practice to have the supporting and guiding sprockets or pulleys for the chains 13 of larger diameter than the pull-over sprockets 1 1. When passing over these larger guide pulleys or sprockets, the blocks 17 are at too slight an angle to release the hangers, even when the latter ar on the outside of the curve.

Having thus described my invention, it will be seen that I have provided auxiliary supports for a tube frame which will securely andindependently retain the frame in position on the transporting chains, but will'permit the frames to be detached from the chains for inserting the tuft yarn in the warp.

I also wish it to be understood that my invention is not limited to the particular details herein disclosed, other than as set forth. in the claims, but what I claim is 1. In an Axminster loom, a tube frame, hangers therefor, transporting chains, detachable connections between said hangers and chains, and additional means to support said tube frame and prevent accidental separation of said hangers and chains as the tube frame is transported by, said chains.

2. In an Axminster loom, a tube frame, hangers therefor, transporting chains, and a detachable connection between each hanger and chain, said hanger having notches and said chain havingprojections engaging said hangers in said notches to prevent displacement of said frame.

3. In an Axminster loom, a tube frame, hangers therefor, transporting chains, detachable connections. between said hangers and chains, and additional means to prevent accidental separation of said hangers and chains as the tube frame is transported by said chains, said additional means also being effective to raise said tube frame and nor 4. In an Axminster loom, a tube frame,

hangers therefor, and transporting chains comprising alternate single blocks and donble links, said blocks having extensions at each end engaging portions of said hangers to prevent accidental displacement thereof while the tube frame is transported by said chains.

In testimony whereof I have hereunto affixed my signature.

, ELBRIDGE R. HOLMES.

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