US1176335A - Robbin-smash preventer and shuttle-protector. - Google Patents

Description

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PETER BLEA'U, OF THREE RIVERS, MASSACHUSETTS, ASSIGNOR OF ONE-HALF T0 CHARLES GIRO'UX, OF THREE RIVERS, LMASSACHUSETTS.

Specification of Letterslatent.

Patented Mar. 211, tore.

Application filed May l, 1910. Serial Ito. 559,401.

To all whom it may concern:

Be it known that 1 PETER BLEAU, a citizen of the United States of America, residing at Three Rivers, in the county of Hampden and State of Massachusetts, have invented a new and useful Improvement in BobbimSmash Preventers and Shuttle-Protectors, of which the, following is a specisame size, bobbins are of different sizes, the

springs in the shuttles are of different tension andare liable to become worn or disarranged, the heels or portions of the bobbins which are engaged by the springs in the shuttle are of different diameters, being often of diiferent makes and are liable to be damaged or worn so that when an operative places the bobbin in position in the shuttle by hand it frequently occurs that the bobbin is not forced home to its seat and therefore projects a slight distance above the surface of the shuttle. It also frequently occurs where automatic appliances are used to place the bobbin in the shuttle that such device is not properly adjusted to force all the bobbins regardless of their condition into the proper position in the shuttle, so that with the employment of an automatic feeder it frequently occurs that the bobbin is not properly placed in the shuttle but projects a slight distance above its upper surface.

Whenever the bobbin is improperly located in the shuttle, as before explained, damage is liable to result, such damage generally occurring while the bobbin and shuttle are first passing through the shed, after the bobbin has been fed to the shuttle and it is quite a common occurrence that the bobbin becomes entangled with the warp causing a breakage of the warp. threads, which character of injury is so common in the art ,to which this invention appertains that such breakage or damage has come to be generally known and termed as a smash,

tom to permit the The damage resulting from a smash is more than would be at first supposed because of the fact that a roll of cloth wherein some of the warp threads have been broken and tied is an imperfect roll or belt of cloth; the time involved in repairing the damage renders it necessary that the loom remain idle while such repairs are being made, and if the operative is employed by the day a loss results to the employer, while if the employee isworking by the piece, as is quite common, it causes dissatisfaction among the help and if such stoppage is of frequent occurrence it is liable. to cause the employees to ask for a higher rate for piece work. It will readily be seen, therefore, that adevice adapted to prevent the condition of things referred to will be advantageous in many ways. c

In order to accomplish the desired result I provide a stop which projects into the path of the heel of the bobbin whenever it is improperly located, as above described, causing the point of the bobbin to be tilted downwardly and thrown out of the shuttle before it reaches the shed and therefore,

avoiding all danger resulting from the improper placing of the shuttle in the bobbin. The shuttle and the shuttle-box are both provided with openings through their botpassage of the bobbin when it is ejected.

One of the principal objects, therefore,

of my invention is to provide a stop to prevent the injury above referred to.

Experience has shown, also, that when the bobbin is not. properly seated in the shuttle and projectsabove its intended position damage is liable to result in other respects; that is to say, the bobbin is liable to be thrown out at any point of the travuse of the shuttle, thus endangering the shuttle or damagingthe bobbin or in uring some part of the loom mechanism and the object of my device is to prevent this danger as well as the danger hereinb'efore specifically referred to.

A further object is to prolong the life of the shuttle by supplying the under-side of the top of the shuttle-box with a nonmetallic material, so that the shuttle, which is made of wood, does not come in contact with the metal of the flange. Ordinarily the friction against the metal as the shuttle travels back and forth, Wears the shuttle me to accomplish the desired results and attain the objects of my invention, as one practical embodiment of my invention, are

illustrated in the accompanying drawings and described in this specification.

In the accompanying drawings, in which like figures of reference indicate like parts,

Figure 1 is a plan view of a shuttle-box back having my improved device, and with I a shuttle in the position it receives the bobbin. Fig. 2 is a side elevation of the same showing the shuttle advanced to a position where the heel of'the bobbin engages the ejector and. with the bobbin point tilted downwardly and Fig. 3 is a cross section throughline w, m, of Fig. 1.

1 indicates a shuttle-box back, 2 an overhanging member, 3 a shuttle, 4 the ejectorabutment or edge, 5 a leather lining on the member 3,.and 6 a bobbin.

The loaded bobbin is as a rule fed to the shuttle at'the right of the operator, 2'. e., at the right hand end of the lay, as seen when facing the loom-front and when the filling material or loaded bobbin is fed to a loom by a machine-feed or magazine, it

is located at the right. so that the first or initial movement of the shuttle is to the left toward thefshed and as the bobbin is fed to the shuttle with its heel or butt toward the front or left-hand end of the shuttle.,it will be seen that the point of the bobbin projects toward the right or away from the shed and the heel is nearest the shed. Now while a bobbin is usually fed to the shuttle'in such manner that the bobbinloccupies its proper position in the center of the shuttle, it is found by experience that either through carelessness or defective mechanism, or wear. or imperfection in the springs in the shuttle, or because of defects in the heel of the bobbin. or variation in the diameter of the heel portion of the bobbin. the bobbin will not at all times be properly placed in the shuttle, but will quite frequently pass'through the shuttle and fall to the floor or will fail to properly locate and the heel will project a slight distance above the top of the shuttle. and it is when this oceursthat the greatest damage or smash-results because a shuttle entering the shed with the heel of the bobbin above the shuttle will generallveresult in the projectingpart of.

the bobbin striking the warp threads and breaking them. To avoid this danger. I provide a stop or ejector shoulder which lies in the path of the heel of the bobbin (when improperly located above the shuttle) and locate the same at a point closely adjacent the feed, or in other words so as to operate quite near the beginning of the stroke or traverse.

The stop or ejector not only prevents the passage of the bobbin into the shed, but will also eject the bobbin downwardly out of the shuttle to the floor, thus preventing danger to the warp threads and also avoiding the danger to any of the mechanism which might be injured as aresult of a sudden stopping of the shuttle in its passage toward the shed. i

I prefer that the ejector stop 4 be formed integral with the shuttle-box back but it will readily be seen it may be separate and attached to the arm or to some other member. It should, however, to operate properly, be substantially fixed in position so that the shuttle just clears it in its passage.

should be of sufficient impact to which underneath and strength to stand blows or it is subjected.

I find it advantageous. in some instances, to line the lower face of the stop member 4 with a somewhat thin piece of hard leather or other like material, as this compensates in a measure the wear of the shuttle and insures a closer engagement for location of the stop with the top of the shuttles,if they be of different height. The edge of the leather will in suchcase be flush with the edge of the metal or hard part i of the ejector-to which it is attached.

As a rule. so far as I have been able to discover, a bobbin improperly located in a shuttle with its heel projecting above the shuttle. is liable to project anywhere from one sixteenth of an inch to one fourth of an inch above the shuttle top, so that a stop or ejector located just far enough above the top of the moving shuttle to clear it, will catch and eject a bobbin located as above stated.

I am aware that a device comprising a spring pressed 'member designed to catch the point of a bobbin and stop further movement of the shuttle, has heretofore been devised. I am also aware that a device has heretofore been devised consisting of a bridge extending across and some considerable distance above the top of the shuttlehox and located to operate near the end of the shuttle-picking movement to block further movement of the shuttle. In both of these devices, the result sou ht to be ob tained is to block further traverse of the shuttle, and I make no claim to a construction designed tooperate like those above described.

My object is to provide a simple device that will operate almost instantly after the shuttle starts, after being replenished. so that if the bobbin is improperly located in the shuttle with its heel projecting above the top of the shuttle, the bobbin will be ejected without stoppage of the shuttle in its passage, and therefore without danger to the mechanism, as well as preventing the entry of an improperly located bobbin, as explained above, into the shed.

Having therefore described my invention, what I claim and desire to secure by Letters Patent, is-

1. The combination in a loom, of a shuttle-box having top and bottom openings, a fixed bobbin-ejecting member projecting over the top of the shuttle-box to just clear the shuttle and lie in the path of the heel of the bobbin, if it projects above the shuttle, and a shuttle having openings in its top and bottom to permit the passage of the bobbin.

2. The combination in a loom of a shuttlebox having top and bottom openings, the shuttle-box back having a top comprising a member 2 with its edge 4 so located as to just permit the passage of a shuttle below it, whereby the heel of a bobbin in the shuttle projecting above the shuttle will be brought in contact with said edge and the point of the bobbin tilted downwardly and the said bobbin ejected.

3. The combination in a loom, of a shuttle-box having top and bottom openings for the passage'of a bobbin through them, a shuttle having openings at top and bottom for the passage of a bobbin, and a bobbin ejector, the ejector being located near the point where the shuttle is replenished and over the shuttle-box closely adjacent the plane of the shuttle top whereby the heel of a bobbin carried by the moving shuttle and projecting above the shuttle will be engaged and point of the bobbin tilted downwardly and the said bobbin ejected downwardly.

4. The combination in a loom, of a shuttle-box, a shuttle to move therein, a bobbin carried by the shuttle, the box and shuttle having slots or openings in their bottom portions to permit the passage of a bobbin therethrough, and a bobbin ejector comprising a rigid member extending over and located close to the path of the top of the shuttle so as to engage the heel of a bobbin carried by and projecting above the moving shuttle substantially at the beginning of the first forward movement of the shuttle after the bobbin is fed thereto, whereby the heel of the bobbin will be engaged by the ejector, the point of the bobbin tilted downwardly, and the bobbin ejected downwardly.

5. The combination in a loom, of a shuttle-box having an opening in its bottom to permit the passage of a bobbin, a shuttle having a like opening, and a bobbin ejector 4, the ejector being integral with the shuttle-box back and located near the filling point, and -with its engaging edge or shoulder just above the level of the traverse of the shuttle top whereby when the shuttle first moves from the filling point, the heel of the bobbin will, if projecting above the shuttle be engaged by the ejector and the point of the bobbin tilted downwardly and the bobbin ejected in a downwardly direction.

6. The combination in a loom of a suitable shuttle-box, a shuttle, both having bottom openings for the passage of a bobbin, and a bobbin ejector, said ejector comprising a rigid member projecting over the top of the shuttle path and closely adjacent thereto and located near the filling point so as to engage the heel portion of the bobbin if it project above the shuttle, the lower face of the ejector'member 4 having leather secured thereto, whereby the'first movement of the shuttle after being filled will be in the direction of and against the ejector member causing the point of the bobbin to be tilted downwardly and outwardly and Wear of the upper surface of the shuttle against the ejector member lessened because of the leather attached to the ejector.

PETER BLEAU.

Witnesses:

' F. A. CUTTER,

A. C. FAIRBANKS.

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