US454807A

US454807A - James it

Info

Publication number: US454807A
Authority: US
Publication date: 1891-06-23
Anticipated expiration: 1908-06-23

Description

(fie Model.)

J. H. NORTHROP.

LOOM SHUTTLE.

No. 454,807. Patented June 23, 1891.

I I [2 hurt Jom-ruesjfwonflvro a UNITED STATES PATENT OFFICE.

JAMES H. NORTHROP, OF HOPEDALE, MASSACHUSETTS, ASSIGNOR TO GEORGE DRAPER d: SONS, OF SAME PLACE.

LOOM-SHUTTLE.

SPECIFICATION forming part of Letters latent No.454,80'7, dated June 23, 1891. Application filed May 10, 1890. Serial No. 351,227. (No model.)

To all whom it may concern: other usual or equivalent manner. The act- Be it known that I, JAMES H. NORTHROP, a ing faces of the jaws or arms a 1), shown as subject of the Queen of Great Britain, but at somewhat concaved in cross-section (see Fig. present residing at I-Iopedale, county of 5) and represented as provided with a series 5 Worcester, State of Massachusetts, have in of grooves or notches at theirinner sides, (see vented an Improvement in Loom-Shuttles, of Fig. 3,) are located next to and substantially which the following description, in connecparallel to the inner side walls of the shuttle. tion with the accompanying drawings, is a These jaws are free to yield to a limited eX- specification, like letters on the drawings reptent to a bobbin while being pushed into po- 1o resenting like parts. sition between them from oneas, for in- This invention has for its object to imstance, the top side of the shuttlethe bobprove the construction of bobbins and shutbin being removable from the other or bottles employed in that class of loom wherein tom side of the shuttle, this being essential the weft is automatically supplied to the shutfor the success of this invention. The jaws, I 5 tle while the loom is in motion, myimproved by reason of their concaved inner or acting bobbin and shuttle being so constructed that faces, grasp and hold the bobbin and do not a bobbin containing weft may be automatirequire a spindle in the bobbin. cally introduced into the shuttle and be there- The head of the bobbin 0, of wood or other after removed automatically on the occurusual or suitable material, is represent-ed as 2o rence of any fault in the delivery of the weft. provided with two annular projections or One part of myinvention consistsin aloomrings 0, adapted to enter the grooves or shuttle and attached bobbin-holding jaws notches made'in the inner or acting faces of adapted to receive a bobbin between them the jaws, two, or it may be more, such projecfrom one side of the shuttle and to hold the tions enabling the b0bbin,while being pushed 2 5 same and thereafter permit the bobbin to be into position between the jaws, to be maindischarged from between the said jaws at the tained substantially in horizontal position, other side of the shuttle, as will be described. the said projections, after the bobbin has been Other parts of my invention will be herepushed into place, aiding in keeping the bobinafter described, and defined in the claims bin in central horizontal position in the shut- 8o 0 at the end of this specification. tle. The jaws have, it will be seen, a greater Figurelin top viewrepresentsashuttle havnumber of grooves or notches than the bobing one form of jaw embodying my invention, bin has projections, such provision compenthe bobbin being shown in full lines and the sating for variations in the longitudinal poyarn load thereon being indicated by dotted sition of the shuttle in the shuttle-box when 8 5 5 lines; Fig. 2, a partial section in the irregular the bobbin is being pushed into place be- .dotted line 00, Fig. 1; Fig. 3,a partial longituditween the jaws, and enabling the bobbin to nal section of the shuttle, cutting through be properly received in and held by the jaws both jaws of the clamp in the line 00', Fig. 5; notwithstanding slight variations in the posi Fig. 4, a section of the shuttle in the line m tion of theshuttle longitudinally. 9 0 Fig. 1; Fig. 5, a section of the shuttle in the Believing myself to be the first to provide line x Fig. 1; Fig. 6, a detail, looking at the a shuttle with yielding bobbin-holding jaws side of the shuttle which is uppermost in Fig. or devices to yield or separate as a bobbin 1; Fig. 7, a section in the line 00 Fig.1. Fig. head is pushed into operative position be- S is a modification showing jaws with projectween them,I do notintend to liinitthis inven- 45 tions to enter grooves in the bobbin. tion to any special form of yielding jaw, but The shuttle-body A, of wood or other usual consider as within the scope of my invention material and of usual shape, is shown as proany other form of jaw having the properties vided with a pair of yielding bobbin-holding referred to. It is obvious that my invention jaws a 1), (represented as forming part of a would be substantially the same if the con- I00 50 metal loop or strap a,) suitably inserted or struction was just the reverse, as in Fig. 8, held in the shuttle-body by a block a or in where the jaws are shown as provided with projections to enter notches in the head of the bobbin; but the projections on the head of the bobbin are preferable as affording greater strength, for the said projections c may be of metal bent to form rings. The shuttle-body is cut away at (Z down to and into the usual delivery opening or eye 4: in the-side wall of the shuttle, and the shuttle at one side the said slot has applied to it byscrews 10 a horn (1 provided with a point, as at cl, under which the weft-thread is automaticallydrawn or passed by the movement of the shuttle in the shed after the bobbin has been pushed into the shuttle from a suitable hopper or guideway, as in my applications, Serial No. 351,228 and No. 380,494, the outer end of the weft-thread carried by the bobbin being connected with some fixed part of the hopper or loom, which causes the said thread to be held while the bobbin is being pushed into the shuttle and the latter is shot across the shed, during which operation the shuttle thread is automatically inserted in the shuttle deliveryeye. The delivery-eye t is shown as lined by a metal plate 8 bent to leave an open side, the plate having a lip 3, down behind and over the point of which the weft is passed as it enters the said eye 4, the lip 3 preventing the escape of the thread from the said eye. In this shuttle the weft-thread is drawn off the end of the bobbin through the transverse opening or passage in the plate 0 and out through the side of the shuttle.

It is not desired or intended to limit this invention to the exact form of the device or slot whereby the shuttle is made self-threading, thus avoiding drawing the end of the Weft-thread out through the delivery-eye t, as when the eye is not slotted; and instead of the particular plate or form of slot shown I may employ any other usual device or form of slotcommon to other self-threading shutt es. r

In another application, Serial No. 352,960, filed May 23, 1890, I have shown a spindle having a head which may be passed into a holder from one side of the shuttle and out from the holder at the opposite side of the shuttle, the head of the spindle and the holder being so shaped as to prevent longitudinal movement of the spindle in the shuttle, the said application having been filed to protect my invention, broadly, as applied to spindles as contradistinguished from bobbins without spindles, as in the present invention.

It is not intended to limit this invention to the exact form of bobbin shown.

My applications, Serial Nos. 351,228 and 380A94c, show means for automatically supplying a bobbin or a spindle to the shuttle and discharging it therefrom.

I am aware that bobbins have been provided with a ring of wire to prevent the head of the bobbin from being split.

1 claim 1. A loom-shuttle and attached bobbinholding jaws, adapted to receive abobbin be tween them from one side of the shuttle and .to hold the same and thereafter permit the bobbin to be discharged from between the said jaws at the other side of the shuttle, substantially as described.

2. A loom-shuttle having a self-threading slot or eye and bobbin-holding jaws, and a bobbin adapted to be grasped and held between the said jaws, to operate substantially as described.

3. A 1OOD1-Sllt1ttl0 provided with bobbinholding jaws having a series of notches or projections, in combination with a bobbin provided with project-ions or notches in less number than the notches or projections of the jaws, as and for the purpose set forth.

4. A bobbin for use in a loom-shuttle, the said bobbin having its head provided with two or more annular projections or grooves, for the purpose set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JAMES H. NORTHROP.

\Vitnesses:

F. J. DUTOHER, H. W. BEATTY.