US1581300A - Side overlap shuttle - Google Patents

Description

April 20, 1926. 1,581,300

F. H.-STETSON' SIDE OVERLAP'SHUTTLE Filed May 17. 1922 ATTORNEY. A

Patented Apr. 20, 1926.

UNITED STATES PA'T -E'N T cr me-E.

FRANK H. :STETSON, or 'METHUEN, MASSACHUSETTS, ASSIGNOR IO 'U. SJBOBBI &

SHUTTLE 00., or PROVIDENCE, RHODE ISLAND, 5A coRroRA'r'IonfoF nHoIiE ISLAND.

SIDE OVERLAP i SHUTTLE.

1 Application filed-May 17,

Torall whom'it may concern:

Be "it known that I, FRANK H. STETsoN, a citizenof-the'Uni-ted States, residing at Methuen, in the county of Essex and State of..Massachusetts, have invented certain new and useful lmprovements in/Side Overlap Shuttles, of which the following is a speclfication. r

Myinvention is an improvement in shuttles, particularly of the self threading type for weft replenishinglooms such as are 'shownfor instance in? patentsto Isaac Snow,

v306, February 22, 1921. I

-VVith some types of.yarn, such as worsted, which is more For. less :greasy, I find that with an overlap at the bottom at the back. there is a tendencyfor flyings' and grease to collect atithe bottom in-front of this overlapnntil enough accumulates to be taken up by the yarn and be carried into the work causing .flaws. s V I find also that it is desirable in this class of work to .giveconsiderable'clearance .to theiyarn at the-backzas-it comes cit from the: bobbin. I

For convenience and for the purpose of identification in this specificationyI will call -the front that end of the shuttle where the eye is located and the other end ofthe shuttle the back.

I will call an eye which jpasses out of the I .left side when looking at the front pointa left eye, and an eye on vtheopposite side a right eye.

In allthe figures of the drawings, I show a-shuttle with a left eye and-in all the figures the thread on the bobbin is supposed to :be woundv in the usual-way shown in Fig. 1, that is, from left .to right=it moves over clockwise, thence down underfrom right'to left. I

I will call the top of the shuttle as itruns in a loom the top side, and the bottomthe bottom-side. V

.Inthe drawings, Fig. l is a plan-view of a shuttle with my improvement.

Fig. 2 .is :an elevationas ,from the left of Fig.1. I

Fig. 3 is an elevation of the threading bilockas from the rightof Figulwith the Fig. 4 is a frontelevationiofl the;thread- .ingblock.

' Fig." 5 is a view from the direction-of. the arrows inFigxlon theJ1i ne-5- 5.

Fig. 6-. is a plan view: of a slight modified construction.

Fig. 7 is an elevation from the backof the threading block shown in Fig- 63removed 'fronr the shuttle.

:No. 1,344,734 June29,;1920, andNo. 1,369,- 1 g 1 having the usual; bobbin; chamber 10 1 for the bobbin .Bfrom which the,yarn A is un-" S is a shuttle-:ofjthe usual wooden-type wound. 12 is the threading Chamberwhi'ch extends forward in continuation of bobbin chamber 10, and 13 is the delivery a passage which extends still 1 further forward of the threading chamber. of the .threadingchamber which is included in the metallic threading block F -whichi is set into the woodwof the shuttle and .may be "fixedi therein by means of aiscrew 36 which 7 passes through hole. inthe-shuttle and the hole 35 I'm-block F in a wellknown manner. Preferably; there is at the bottom ofblock F tihe iproject'ion -34 which fits into a recess in the wood of the shuttle. represents a shuttle eye in the wood and this connects with the threading chamber 12 through the slot 14 cut from delivery passage 18; '17, 17 represent the usual metal or; iporcelainpins on each .side of eye -G represents a thread directing-"guide: plate which extends from the top iof-block F and therefore the top of the shuttle .down-intothe threading chamber v and includes the I nose 19 which preferably extends forwardofeyeH and terminatesin a thread trappingrim 22011 the side opposite eye H, and also at the back a thread directing .gu-ide finger 24 which extends from and under the back part thereof down into locking recess40 which extends out from .the threading chamber inthe-wood' on the Qppositeiside from. theeye H. Pref- .erab1y, thread. trapping. ri=m22 extends down .slightlynndergan overhang 1 5yformed in the wood.

The locking recess 40 at 4 2 curves around 1-00. indicates thatpart r in front of guide finger 24, and at 41 e"- tends around in back of it being of such depth that its bottom 43 is level with the top edge 39 of the lower part of block F, and the top part of projection 30 which conforms to the shape of 41 but extends down into a recess 45 which extends downward from the locking recess 40.

The front end of block F preferably terminates in a horn 32 which preferably from the bottom end runs backward in a web 29 which helps to keep the yarn down and, together with a pin preferably of porcelain 33 which extends downward from the socket 80, directs the yarn out through eye H in a well known manner. 38 is a friction in a hole 37.

The locking recess 40 is shown in Fig. 1 and its outline is indicated by the lines marked 40 in Fig. 3 as being cut in the wood, but it is obvious that as shown at 50 in Figs. 6 and 7 this recess might be lined, so to speak, with metal 50 extending upward from the bottom 59 of recess 51, which bottom 59 corresponds with the top of rim 39 shown in Figs. 1 to 5.

The threading block K shown in Figs. 6 and 7 is similar in all respects to block F except that, so far as the parts 50, 51 and 5 9 are concerned, they are made of metal being an integral part of K instead of being formed in the Wood.

As the yarn unwinds from the bobbin B so as to sweep under guide finger 24 towards the bottom of threading chamber 100 and web 29 is placed low, I can use a very large pin 33 and a very large and long socket 80 therefor. By locating friction hole 37 well up to the bottom of socket 80, the front part of the yarn is kept in a relatively small path while the back part has plenty of clearance as will be seen by examining Fig. 5, while at the same time it cannot easily fly out of the threading chamber on account of guide finger 24 and the front and back locks therefor formed by 41 and 42.

I claim:

1. The combination in a shuttle having an eye, a bobbin chamber and a threading chamber in continuation thereof which connects on one side with said eye and has a locking recess on the other side, of a thread directing guide plate which extends from the top of the threading chamber on the side of the eye over and down thereinto, such guide plate having a nose which extends forward of the eye with a thread trapping rim on the side opposite said eye, and a thread directing guide finger which extends from and under the thread directing guide plate at the back down into said locking recess, together with a friction means which projects upward into the forward part of the threading chamber, a socket which extends down substantially level with the top of said friction means, and a guide pin held by said socket.

2. The combination in a shuttle having an eye, a bobbin chamber and a threading chamber in continuation thereof which connects on one side with said eye and has a looking recess on the other side with front and back walls, of a thread directing guide plate which extends from the top of the threading chamber on the side of the eye over and down thereinto, such guide plate having a nose which extends forward of the eye with a thread trapping rim on the side opposite said eye, and a thread directing guide finger which extends from and under the thread directing guide plate at the back down into said locking recess between the front and back walls thereof.

3. The combination in a shuttle having an eye, a bobbin chamber and a threading chamber in continuation thereof which connects on one side with said eye and has a locking recess on the other side with front and back walls, of a thread directing guide plate which extends from the top of the threading chamber on the side of the eye over and down thereinto, such guide plate having a nose and a thread directing guide finger which extends from and under the thread directing guide plate down into said locking recess between the front and back walls thereof.

4. The combination in a shuttle having an eye, a bobbin chamber and a threading chamber in continuation thereof which connects on one side with said eye and has a locking recess on the other side with front and back walls, of a thread directing guide plate which extends from the top of the threading chamber on the side of the eye over and down thereinto, such guideplate having a horn behind which is a web and a thread directing guide finger which extends from and under the guide plate out into said locking recess between its front and back walls, together with a friction means of cylindrical form, part of whichextends up into the forward bot-tom part of the threading chamber, its top being substantially level with the bottom of said web, a socket which extends down substantially level with the bottom of said web, anda guide pin held by said socket.

5. The combination in a shuttle having an eye, a bobbin chamber and a threading chamber in continuation thereof which connects on one side with said eye and has a locking recess on the other side with front and back walls, of a thread directing guide plate which extends from the top of the threading chamber on the side of the eye over and down thereinto, such guide plate having a nose and a thread directing guide finger which extends from and under the thread directing guide plate down into said locking recess between the front and back walls thereof, the bottom of the threading chamber inside the back hook along which i the thread normally runs being smooth and without obstructions.

6. A shuttle threader having a longitudinal threading chamber and a thread directing' guide plate which extends down and out from the top into such threading chamher, a thread retainin guide finger which extends from and un er the back part of the thread directing guide plate into a recess cut in the side wall of the shuttle between the front and back walls of such recess. FRANK H. STETSON.

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