US877108A - Loom-shuttle. - Google Patents

Description

PATENTED JAN. 21, 1908. H. MURPHY.

LOOM SHUTTLE.

APPLICATION FILED NOV.2B, 1906.

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.- tothrow the l'celer away LOOM-SHUTTLE To all III/1.02;! it may concern:

Be iL l\'.ll()\ n the 1. l, llENltY MuRPnY, a subject of the .l nited Kingdom of Great Britain and Ireland, lesidl ng at Lowell, in the county of lllidilh-sex and (,o'nnnonwealth of Massa chusetls, have i] I van 1 ml a certainnew and use.- iul 1111 pm weln'ent in .liomwShuttles, of which the l'ollon ing is a specification.

This invention relates to looin-sl'iuttles oi the kind used in many wcit-replenishing looms, in whit-h a .teeler at every other beat of the la roaches through an opening in the front of the shuttle-box and through an opening in the s'hu tile and pressedby the filling from operative position, until the filling has been exl'iausted to a predetermined anioinit and the feeler is no longer sulliciently, moved to prevent its engagingnvith other mechanism which introduces a new supply of filling. Such afee'ler and weitsupplyin'g mechanism controlled thereby is shown in United States Letters Patentito Northrop, No..626 ,157, and formsno part 0i this invention.

it has been found that when-the speed of 1001115 of theclass'reierredto is increased, the lay swings a little farther forward and the feeler must reach a little further into the shut-.

tle before the filling-change takes place, re-4 uuiring a greater exhaustlon of the filling in the shuttlebel'ore the leeler can swinginto operative position, On the other hand, where there is a decrease of speed either inte-nti'on ally or by. an increase in the weightof the warp, the .laydoesnot' comelso far for-.. ward, the fillingchan e takes place sooner and the waste ding le t on the old bobbin or spindle will be greater in amount. The amount of waste thus madeis a matter oi con-- and to lessen its amount it is customary to wind. a narrow ring or bunch of filling on the bobbin. or spindle at the commeneementof tho-bobbin-wi'nding or spindlawinding operathm. The object of this invention is to, make the action of the feeler more positive and exact, regardless of the speed and of the inevitable wearing ofthe bearings of the lay and its connections so that the filling-change will actusid erable importance ally occur as intended when the filling is ex hausted to a predetermined amount and to make it certain that this amount shall not be varied by the weaver who frequently varies the adjustinoi-it of the .feeler to hasten the filling-change, in' order to avoidbreakswhich 'lt.) DltAllGR COMPANY, OF

Specification of Letters Patent. Application'filed November 28.1906. BerialNo. 345.510.

MASSAUIlUSElTS, ASSIGNOR, er sinner AND MESNE HOPEDALE, MASSACHUSETTS, A GOR- Patented. Jan. 21, 1908.

' are more likely to occur when the filling is nearly exhausted. i

By the use of my invention the feeler may be lightened to a considerable extent and narrowed at its contacting end and the 0 enings in the shuttle-box and shuttle-through which the feeler reaehes,. thereby weakening the tent. Said invention will save part of the waste cop when the filling-change takes place, be-

:ause'this invention to be made on the diameter of. a single t if the swinging-plate or feeler-shield be carefully made and roperly set, in which case said shield is positively sure to operate properly. The amonntof such waste is so great that feelers have gone out of use in mills where it is consideredmore important to make little waste than to turn out a high quality of cloth'.

In the accompanying drawing,'Figure 1,-is an isometric perspective view, partly in vertical cross-section, of a left-handed shuttle containing a full bobbin rovided with my improvement; Fig. 2, a ront elevation of that partof a shuttle which contains my invention; 'Fig. 3, theline 3 3 in Fig 2'; Fig. 4,'similar-to-Fig. 3, but showing also in section, inthe same plane the front wall or plate of the shuttle- OK and a feeler pressing againstthe feelershield Fig. 5, like Fig.4, exoeptthat the filling is partly exhausted; Fig. 6, like Fig. 5, except shuttle to a less exthe greater that the bobbin is empty. A indicates the body of a shuttle such as is now commonly used in the so-called Northrop loom a, the chamber or'longitudinal mortise which receives the filling-carrier or -bobbin B and filling (J; a, the threading slit; a the delivery eye; (1, the slot or opening through which the feeler F enters the shuttle after passing through the aperture 6 in the frontwall E of the shuttle-box. All the above indicated parts are of any. usual construction and operation, except as here *inafter stated and may be substantially as shown and described in said NorthropQpatent and other atents to said Northrop.

.The slot of in the shuttle is represented as leavin aled e a j .Within the slot a is pivoted t e fee er-shield D, the same. being a plate preferably of metal, having ears (1 (1 through which project pivot-pins d (1, se-

filling left on the bobbin or will enable said change cad,

deepened on the inside at the bottom at a may be made smaller,

a vertical cross-section on cured in the end-walls of said slot (1 The shield D turns freely on its'pivots d d when ushed by the feeler and swin s against the ing or co 0 but does not a ow the feeler tocome in irect contact with the fillin and as the filling is exhausted, allows the eeler gradually to enter the shuttle farther until when the filling is entirely exhausted or ex hausted to any predetermined extent, said shield is pushed up entirely out ofthe we of said feeler which then operates the fillingchanging mechanism in the usual manner.

'D, (i prevented from rising on its pivot bythe It is customary to wind a bunch of yarn on the-bobbin at the beginning of the spinning operation for the purpose of having a we defined projection for the feele'r to work against, and I referto use a similar bunch to 'swing'against, but thefor the shield bunch may be smaller than heretofore or ma be dis ensed with entirely.

a ne of t e ears d, the one nearest: the middle of the shuttle, is provided with a pivotholle d which'is oblong instead of circular an en the shuttleis in the box, the ear shuttle-box plate or front wall ottheshuttle E, but when the shuttle is out of the box, the

.shield may move away from the co until the pivot-pinis in the lower end of t e slot or opening 11*, the object of-this construction being to allow the shield to free itself from i the. copafter leaving the 'ishuttle-box and to nearly point 0 fall into-place against the ledgea asshown in Fig. 3. Otherwise the. shield might be held by the elasticity of thecop in the posi tion given to said shield by the. feeler when the, cop is nearly exhausted and theshield V occupied a nearly radial'position to the cop. 40

The shield or plate D is provided at the lower ed e of its'outerface with a bead (P. This bea allows the feeler to come suddenly in contact with the nearly. exhausted cop at the pro. er. time. As the filling becomes ex hauste 'the feeler strikes against the outer face of thebead which is so'curved as to be contact therewith, so thatthe plate offers a greater resistanceto the enetration of the feeler into the shuttle, unt I the'neces sary reduction of the diameter of the co has taken place and then the contact 0 the edge and norma arallel with the ,rear wall of the shield,

filling shiel 1 perpendicula'r to the feeler at the feeler suddenly raises the shield D above the horizontal plane of the axis of the cop-holder and allows the feeler to come in contact with the cop. The effect of the head is therefore to render the operation more exact and positive. I claim as my invention 1. The combination of a shuttle-body provided with an o ening to admit a feeler and a shield normally closing said opening and adapted to yield when ressed by said-feeler agamst a cop carried y said shuttle, and normally to revent the actual contact of said feeler wit said cop, but ermitting such contact when said cop has een exhausted to a predetermined amount.

2. The combination of a shuttle-body pro vided with a slot or opening to admit a feeler', a shield or lplate pivoted near its upper y closing said slot by its own gravity, normally to preventjthe actual contact-of said feeler with a"cop carried by said shuttle but ermitting such contact when said cop has een exhausted to apredetermined amount. T

3. The. combination of the shuttlea ody having an o ening to admit a feeler d a or' plate provided with ears, pivots passing through holes in said cars into .the shuttle-body, the hole in one of said ears being oblong to allow said'shield to yield in the plane of said shield to become disengaged from a cop carried by said shuttle.

'4. The combination of the shuttle-body having an opening to admit a feeler and a filling shield or late pivoted near its upper edge and norma ly closing said slot by gravity and adapted to yield when pressed by said feeler against a cop carried by said shut tie, and toprevent the actual contact of said feeler with said cop until said cop has been exhausted to a predetermined extent, said shield having on its outer face near its lower edgea bead curved to be perpendicular'with said feeler at the point of'contact of said shieldand feeler. v

In testimony whereof, I have affixed my signature, in presence of two witnesses.

HENRY MURPHY.

: Witnesses:

ALBERT M. Moons, ALEXANDERT. 001.11.

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