US1546677A - Weft-carrier magazine - Google Patents

Description

July 2l, 1925.

E. H. RYON wEFT CARRIER MAGAZINE #llaa may 2v, 1922 Patented July 21, 1925.

"UNITED srares nrPA n'. RYoN, or wALrHAZn, nassACnUsnfrr-s, nssreuon To CROMPTON 8c KNOWLES LOOM WORKS, OF WORCESTER, MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS;

wnr'roaieainn MaGrimme.v

Application led May 27, 1922. Serial No. 564,187.

To all whom t may concern.' l

Be it known that I, Erri-i H. RYON, a. citizen of the United States, residing at ltaltham, in the county of Middlesex and State of Massachusetts, have invented a new and useful 1weft-Carrier Magazine, of which the following is a specification.

This invention relates to a. weft carrier magazine of the stationary type which is common for weft replcnishing looms in which more than one kind of weft or llling is used. In such magazines it has been customary to provide straight vertical compartments for the Y different series of weft carriers.

lt sometimes happens that a certain kind or color of weft is used only occasionally in a particular pattern, so that the weft carriers of this kind remain for relatively long periods in the magazine. The vibration of the loom, together with the occasional downward feeding movements in the compartment, have been found to slowly rotate the weft carriers when thus disposed, loosening the weft ends which are attached to a fixed part of the magazine and twisting the ends about each other in such manner that they are frequently broken when the weft carriers are transferred to the shuttle.

1t is the general object of my invention to provide a weft carrier magazine in which the weft carrier compartments are of a. special construction, designed to prevent such angular movements of the weft carrie-rs and to thus reduce breakage during transfer.

lilith this general object in view, my invention in its preferred form contemplates the provision o-f weft carrier compartments having the side walls or guiding surfaces thereof formed with a succession of `reversed curves which will cause the weft carriers to follow an irregular 0r sinuous path as they descend to the point of release and transfer.

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

preferred form of my invention is shown in the drawings in which- Figl is an end elevation of my improved magazine;

Fig. 2 is a partial plan View thereof; and

Fig. 3 is a sectional elevation, taken substantially along the line 3-3 in Fig. 2.

Referring to the drawings, l have shown a four-color magazine of the. general type v comprises end frames 10 and 11 rigidly held in spaced relation by a plurality of cross rods.12. A. weft end holder 13 is secured Vto the outer face of the end frame 11 and depending guide rods 14 extend downward on the outside of the end frame and in sul stantial alignment with vertical slots l5, throughwhich the weft ends are drawn from the weft carriers to the end holder 13.

Yielding supports 16 for the tips of the `bobbins or weft carriers are connected by parallel links 17 and 18 to thelower` portions of the end frame 11. Upper and lower sliding bars 19 and 2O are provided at the bottom of each weft carrier compartment and are moved horizontally in opposite directions by `actuating mechanismnot shown, t-o release the lowest weft carrier in a compartment upon. indication of weft exhaustion in the shuttle using the corresponding kind or color of weft.

rl-he parts thus far described are fully disclosed in my prior application and form no part of my present invention. I have also shown a movably mounted weft carrier release 21 of a usual form.

lily invention relates particularly to the provision of weft carrier compartments having peculiar and novel features indicated in Fig. Reference to the drawing will show that the head end of each compartment comprisesside walls 22 and 23, each formed of a succession of intersectingarcs of circles and that the arcs on the opposite sides of the compartments are reversely and alternately arranged so as to form a frequently reversed or sinuous path for the heads of the weft carriers. The guideways 24 on the frame 11 may be substantially straight and of suilicient width to receive the tips of the weft carriers.

The side walls 22 and 23 are preferably spaced apart slightly more than the diameter of a weft carrier head, thus permitting free passage of the weft carriers and allowing them to assume the positions indicated in Fig` 3. The weft carriers rest against the outer and lower curves of the compartment walls and clear the points of intersection of adjacent curves.

Hth this construction it is found that there is substantially no tendency for the weft carriers to revolve about their axes as they move downward in their compartments. The slight angular movement caused to a weft carrier by moving downward in rolling contact with one of the wall curves is 'followed by an equal but reversed angular movement as the weft carrier engages and rolls downward upon the next succeediing and opposite wall curve, the net result being to maintain the weft carrier in substantiallyy constant angular position.

Furthermore, the vibration of the loom has little effect even upon the upper weft carrier in a compartment, as angular rotation in one direction is prevented by contact with the curved side wall and any angular movement in the opposite direction would require the weft carrier to roll on the next lower weft carrier in such a direction as to raise its own center of gravity. Accordingly, it is found that the weft carriers move downward in these irregular compartments substantially without angular displacement and that there is therefore no unwinding of the weft or tangling of the weft ends.

Having thus described my invention and the advantages thereof, it will be evident that changes and modifications can be made therein within the spirit and scope of my invention as set forth in the claims, and do not wish to be otherwise limited to the details herein disclosed, but what I claim is l. In a weft carrier magazine, weft carrier supporting` and releasing devices, and means to guide the weft carriers to said devices along a path formed of a succession of reversely disposed curved portions,

2. In a weft carrier magazine, weft carrier supporting and releasing devices, and means to guide the weft carriers tosaid devices along a deiinitely fixed zig-zag path in which the direction of movement 0i the weft carrier is repeatedly reversed at predetermined points.

3. In ar werft carrier magazine, a substantially vertical compartment having an alternately reversely curved guideway 'for weft carriers therein.

elf. ln a wet't carrier magazine, a weft carrier guideway having side walls each comprising a succession of sharply intersecting curved surfaces,

5. in a weit carrier magazine, a weit carrier guideway having side walls each comprising a succession of intersecting curves, the curves in the opposite walls being reversely disposed and alternately arranged.

(3. In a weft carrier magazine, a weft carrier compartment having a substantially straight vertical guideway for the tip of the weft carrier and having a sinuous guideway for the head of the weft carrier.

7. A weft carrier magazine comprising guideways in each of which weft carriers are supported in a single line in predetermined staggered relation, and means to cause delinite alternately directed lateral movements of said we'ltt carriers as they move downward in saidmagazine guideways.

In testimony whereof I have hereunto at iiXed my signature.

EPPA H. RYON.

Images