US1259294A - Loom-shuttle. - Google Patents

Description

W. J. ROBERTS.

LOOM SHUTTLE.

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WILLIAM J. ROBERTS, OF PAVJTUCKE'I, RHODE ISLAND.

LOOM-SHUTTLE.

Application 1ed June 7, 1917.

To all whom t may concern:

Be it known that I, VILLIAM J. ROBERTS, a citizen of the United States, residing at Pawtucket, in the county of Providence and State of Rhode Island, have invented certain newand useful Improvements in Loom- Shuttles; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same. y

This invention relates to new. and useful improvements in loom shuttles, more particularly to the formation of the thread delivery eye thereof.

The principal object of the invention is to provide a strong yet simply constructed thread delivery eye which may be inexpensively manufactured, yet which will be very efficient in operation and easily threaded.

An additional object is to provide a loom shuttle eye which is so constructed that the thread will be prevented from ballooningf or -otherwise leaving the shuttle when it is slack.

With these and other objects in view, the invention resides in the novel features of construction, combination and arrangement of parts which will be hereinafter more particularly described and claimed, and shown in the drawings wherein,

Figure 1 is a plan view of the delivery end of an ordinary form of loom shuttle showing my improved eye disposed therein;

Fig. 2 is a side elevation of the parts shown in Fig. 1;

Fig. 3 is a vertical transverse section taken on the plane of the line 3-3 of Fig. 1;

Fig. 4 is a detail side elevation of the delivery eye removed from the shuttle, the parts thereof being separated;

Figs. 5 and 6 are respectively end elevations of the body and cap members of the improved eye shown in the preceding ligures.

fied form of my invention;

Fig. 8 is a side elevation of the parts shown in Fig. 7;

Fig. 9 is a vertical transverse section on the line 9 9 of Fig. 7;

Fig. 10 is a disassembled side elevation' of the eye illustratedgin Figs. 7 8 and 9;

Specication of Letters Patent.

Fig. 7 is a plan view of a slightly modi- Y Patented Mar. f2, 1918.

Serial No. 173,340.

Fig. 11 is an end elevation of the body member of this eye and Fig. 12 is a similar view of the cap member.

Referring more particularly to the several figures of the accompanying drawings, it will be noted that although the invention may be constructed in several slightly different forms, each operates in substantially the same manner and is very similar in general formation. Similar reference characters indicate like vparts in the several figures illustrating each form.

In carrying out my invention as shown in Figs. 1 to G, the shuttle S is provided with a transverse opening 1 to receive the twopart thread guide or shuttle eye 2. lt will be noted from Fig. 3 that the opening 1 is shouldered intermediate its ends as at 3, and adjacent one end as shown at 4, thereby gradually decreasing the diameter of the opening from one side to the other of the shuttle. After the delivery eye 2 has been placed in the opening, the end in which it is inserted is closed by a plug 5 held in place by any preferred means such as the pin 6; the other end of the opening designated by the numeral 7 forms the outlet for the thread which is wound upon the copy C disposed within the bobbin chamber B.

The two part delivery eye 2 comprises a body member S and a cap member 9, the former having one end cylindrically reduced as at 10 to be disposed in that portion of the opening 1 positioned between the shoulders 3 and 4. Since one end portion of this body member is smaller than the other an annular shoulder is necessarily formed which is adapted to rest upon the annular shoulder' 3 of the shuttle. The outer end of the reduced portion 10 of the body member abuts the annular shoulder 4. This body member has an axial bore 11 which extends throughout its length and communicates with the opening 7 in one wall of the shuttle. Also formed in the bodv member is a helical slit 12. the same extending through the wall thereof and into communication with the bore 11. Adjacent one side of slit 12 the body member 10 is reduced as shown at 12a, in order that the thread may pass between said body member and the wall of the opening in which it is positioned.

The cap member` 9 forms the second por-1 tion of the delivery eye, this part consisting ofa relatively flat disk of a diameter similar to that of the largest portion of the body member and adapted to engage the outer end of this portion. This part of the body member has one side cut away as illustrated in the several figures of the drawings to form a shoulder 111, this cut away portion being extendedA from substantially the center ofthe body member outwardly. The body member 8 is similarly shouldered as shown at 15",

but on the opposite side thereof from the yIt will be noted that this channel-shaped passageway extends transversely through the delivery eye and at right angles to the axis of the bore 11. One wall of the passageway, preferably that formed by the end of the body member, is provided with a longitudinally extending groove 16, while the opposite wall has an inwardly curved lip 17 formed integrally therewith, the curved end of said lip being in close proximity to the bottom of the groove 16 so as to form a contracted space therebetween. This lip is of a length slightly less than one -half the width of the large portion of the body member, or the diameter of the disk which forms thev cap member; the lip is disposed to one side of the longitudinal axis of the delivery eye, preferably being disposed toward the bobbin recess B as shown in dotted lines in Fig 1. The inner face of the lip is longitudinallygroovedv as at 1S and the' 0pposite sides thereof are notched as at 19.

The purpose of this grooved lip 17 is to guide the thread into the passageway between the two partsV of the eye, said threadl being delivered into engagement with the grooved part of this lip through a vertical thread slit 20, as is usually provided in the shuttle S, said slit extending from the bobbin recess to a point adjacent the delivery end of the shuttle, from whence it turns diagonally backward and downwardly as shown at 21,-s`aid slit continuing' until it intersects the opening 7 As is usual in devices of thisy character, the thread slit extends" into the body of the shuttle and communicates with the various passageways of the delivery eye. ln the present case the thread T after being drawn from the supply in the bobbin chamber andI placed in thatV portion of the slit designated by the numeral 20,1i`s drawn inwardly'by thel-uivedpotion of the lip 17 until it is in the passageway between the two parts 9 and 10 of the eye. lVith continued pull on lthe thread until it restsin the portion 21 of the thread slit, the same will be guided by the helical slit 12 into the axial bore 11, from which it extends out through the opening 7.

The shuttle, after the thread has been thus disposed, is ready for operation, said Vthread then ruiming directly from the bobbin chamber into the passageway between the two parts of the eye and into the axial bore 11. The thread during its movement through these parts will engage the inner grooved face 18 of the lturvedlipl 17, and the inner and outer edges of the bore 11, therei'ore` these points of Contact are preferably formed of porcelain or other vitreous material. TheV whole of bot-h parts may be either formed of vitreousmaterial, or of metalfwith the exception'of the pointsof contact ofthe thread, which include those mentioned above as well as the bottom of the groove 16, the curvedA outer face of the lip 17, andthe upper end of the slit 12.

This type of shuttle eye is adapted to be automatically threaded by the operation of the shuttle within the loom, but that form illustrated in Figs. 7 to 12 is'adapted'particularly for hand threading. The shuttleV eye illustrated in the last mentioned series of figures is very similar to the rst described form, the chief point of difference being in the size of the delivery eye and the' hole or opening in the shuttle in which it is disposed.

FromvFig. 9 itV will be noted that the opening 25 is of substantially the same diameter` throughout its length and extends from onep side to a point adjacent the opposite'side of the shuttle and anv outlet opening 26 of smaller diameter in this side of the shuttle communicates with the opening 25. Thus only one shoulder is formed against whichthe delivery end of the two part delivery eye 27 engages, the other end having a plug" 28 abuttmg'the same,the latter serving the same purpose as the plug 5 above mentioned. In this form both the body member V29 and the cap member BOare substantially the same diameter, otherwise the parts are very' similar and correspondr toV like parts in the eye 2.

As shown in Figs. 7 and 8, the thread slit of the shuttlefS is Somewhat different from the slit of the shuttle S, although its bottom communicates with the several passageways',

in the delivery eye 27 and is used for the same purpose as that first described. The

thread slit of the shuttle S extends from the bobbin recess B to a point 81 adjacent the outer side of the opening 25 where it makes a rather abrupt turny as'` shown atv 32,

this portion 32 ofthe slitextending around the shuttle until it communicates with a sin'iilar slit' 88 formedin the' longitudinal plane of '19h53' 511361313 'ii-ffii' einglt the ilef' opening 26. The thread passes through the several parts of this thread slit into the delivery eye in the manner above described.

It will be readily noted that since no portion of these delivery eyes are exposed to direct contact with any hard or metallic surface, thel same may be readily formed of a vitreous material withoutdanger of their being broken, the wood of the body of the shuttle and the plugs 5 and 28 forming cushioning members therefor. changes may be made in the form and proportion of the device other than that shown in Figs. 7 to 12, without departing from the principles of the invention or sacrificing any of the eliiciency of the device.

I claim l. A two-part delivery eye for loom shuttles comprising a body member having an axial hole extending throu hout its length, one end of said member being shouldered, the wall of said member having a curved slit communicating with said hole, a cap member resting on the shouldered end of the body member, the space between the cap and said end of the body member forming a thread receiving channel, and a curved lip extending into said channel to guide a thread thereinto.

2. A shuttle of the class described pro- Various minor vided with a bobbin chamber having a thread slit extending therefrom, said slit communicating with a delivery eye, the latter comprising a body member having an axial bore extended throughout its length, one end of said member being shouldered, the wall of said member having a curved slit communicating with said bore, a cap member restinoon the shouldered end of the body member, the space between the cap and said end of the body member forming ai thread receiving channel, and a curved lip extending into said channel to guide the thread from said thread slit into said channel, said thread being guided from said channel to the axial hole by said curved slit in the wall of said body member.

3. A Structure as specified in claim 1, said cap member having at its, inner end a shoulder contacting with the shoulder of said body member, whereby relative rotation of the two is prevented.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

WILLIAM J. ROBERTS.

Witnesses THoMAs Bnswlox, HUGH F. GLANCY.

Genies of this patent may he obtained for ive cents each, by addressing the "Commissioner of Patents,

Washington, D. C.

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