US2556755A - Shuttle - Google Patents

Description

June 12, 1951 w. J. GOSSELIN 2,556,755

SHUTTLE Filed Aug. 21, 1946 W NHIIHWIIINW1ilH ATTORNEYS Patented June 12, 1951 SHUTTLE Wilfrid Joseph Gosselin, Methuen, Mass, assignor to U S Bobbin & Shuttle 00., Providence, R. 1., a corporation of Rhode Island Application August 21, 1946, Serial No. 691,931

11 Claims. (Cl. 139223) This invention relates to shuttles of the auto-- matic or self-threading type where there is usually a metal threading block fitting into and being fastened in a block recess. However, it can be used in hand-threading shuttles.

It is particularly useful in connection with a shuttle eye such as what is shown and described in. the pending application by the same inventer filed July 3, 1946, Serial Number 681,265, now Patent Number 2,426,449, in which there is a special type of eye in the metal shuttle block associated with. the wood of the shuttle body and where. there is a. relatively narrow space between the front of the shuttle block and of the block recess in the body which forms a threading slot extending from the front top to the side of and into the. eyeof the shuttle.

In shuttles where there is a metal shuttle block at the end of a bobbin chamber, the block being held in place in a block recess by a screw or bolt which passes transversely through the shuttle body and the block, after awhile there is a tend ency for the block to pivot or tip up and down, which allows the partat the back top to be caught by the thread, and the front to tip down so asto pinch and break the thread in the process-of threading the eye through the diagonal threading slot.

I provide a shuttle with a longitudinal threading chamber and a threading slot which extends from under a forward nose down and back into a shuttle eye which extends out the side of theshuttle and instead of having the block in front of the bobbin chamber I extend it backdiagonally in a V-shape so that its sides guide the incoming thread down into the middle of the-front end of the point of the V Where the entrance to the threading. chamber is located.

As the thread goes down to the point of the V in. the middle of the shuttle, it is immaterialwhether the bobbin has a left or right hand wind, and mymetal threading block has a much firmer position in the wood or other material of the bodyof the shuttle than in the usual construction.

In the usual automatic shuttles it is thought necessary to have a relatively wide part at thefront end of the bobbin chamber to allow the thread when unwinding to balloon but I provide for such ballooning by making the space under part of the narrow part of the V, large enough to allow such balooning while the top or thread guiding edges are smooth and straight and overhang part of the bobbin chamber thus leavinga ballooning space. The guiding edgeof one side;

is straight and the top part of the overhang curves towards the middle.

These edges are also usually in continuation of converging guide edges in the wood at the top 0f and near the front of the bobbin chamber so that the thread unwinding either from near the tip or from near the head of a bobbin will be guided into the point of the V which is at the mouth of a threading chamber which extends longitudinally along the front, top part of the threading block. With such a V shape, whether the thread unwinds from right to left or left to right, 1e, straight converging edge in connection with the curved overhang controls the ballooning a so that it is almost impossible to loop-or unthread.

If friction plates sloping down and forward are used, they cooperate with such edge and overhang to control the ballooning and there is sufiicient room to balloon but to prevent it from flying over the top while the bottom of the race or of the shuttle box of course prevents it from running shuttle eye block shown in Fig. 1, removed fromthe. shuttle, as viewed at a slight anglelooking downand fromthe right side.

the shuttle; as viewed at a slight angle looking down.

plane.

Fig. '7v is a sectional diagram online of Fig. 1.

Fig. 8 is a sectional diagram on line -8-8 of Y Fig. 1.

Fig. 9 is a view similar to Fig. 8, but of ashuttle having no ballooning space.

Fig, 10 is aview similar toFig. 8, of a shuttle with no; metal shuttle eyeblock.

In the drawings S represents the shuttle body. which is usually of wood or wood with reinforced. fibre at different places or. it. might be .of:other: materialssuch as plastic or even certain relatively:

: soft metals. However, ,as shown, it hasrthe usuali Fig.5 is. a perspective view of the rear-of the shuttle eye block shown in Fig. 1, removed from.

Fig. 6 is a sectional view of the shuttle .eye: block shown in Fig. 5,v on a vertical longitudinalhard metal tip 40, the forward thread groove I! and is cut away at !8 to form part of a diagonal threading slot H, the other part of which is formed by the forward part l2 of the shuttle block G which may be of iron, steel, brass or other suitable metal and is fixed in block recess R.

The threading slot ll leads down to the usual eye E through which the thread passes when weaving in a loom and there is also the bobbin chamber C in which the bobbin A is located with its head, which is not shown, held in place by jaws at the back end of the bobbin chamber in the usual manner.

I will call the end of the shuttle where the eye is located and where the shuttle block is located the front of the shuttle, and the other end, I will call the back.

As shown, the top sides near the front of the bobbin chamber converge at l and 2 and there are branches 33 and 34 of recess R, to receive the legs or guide parts 3 and 4 of a shuttle block G.

The top front walls of the bobbin chamber converge to the middle of the shuttle at the mouth of a threading chamber in which preferably there are spring pressed friction plates to take out kinks, prevent the thread from sloughing off in loops and also preferably these plates slope down and forward to help keep the thread down in the ballooning chamber.

At the underside, the relatively parallel sides of bobbin chamber C also converge at 2| and 22 while the stock at 35 and 36 under the recesses 33 and 3d projects over these parts as also do parts of the guides or legs 3 and 4, thus forming or leaving what I will call a ballooning space E. This is to allow the thread running off the bobbin A into the mouth 5 of the longitudinal threading chamber 6, whether at the time of the threading or afterwards when it is passing out the eye E, to balloon without being caught or interfered with.

F represents friction devices of any well known type just inside the mouth 5 while i is an overhanging guard such as is often used in such shuttles, B is a forwardly extending hook along the side of the threading chamber and 9 is the front nose, which as shown, has a backwardly extending hook.

There is also the usual hole 13 for a bolt or screw block G and through the body S to hold the block in place in recess R, and there is also the usual downwardly extending stud l5. These, together with the cut away parts H] of the block recess R hold the block G firmly in position to prevent it from becoming loose anywhere and causing trouble.

i3 is the hole into which stud I5 enters, is the thread groove, 65, the usual angle pin, 31, a screw forming part of the friction plate assembly and T is the thread.

The best combination is a shuttle block such as G with spring pressed friction plates F which slope down and forward of a well known type such as shown in patent to Park, No. 2,087,607 of July 20, 1937, and with the V- shaped branches 3 and 4, the back inside guide edges of which register with and continue the converging top sides l and 2 of the bobbin chamber C, the parts being so arranged that a ballooning chamber B is formed by the overhangs 35'and 36. This arrangement allows the thread T to unwind freely from a bobbin A, ballooning as it unwinds but the ballooning on the threading pick being confined entirely between V-shaped guides while the [4 which extends through the shuttlethread is directed down to the point of the V, through the friction plates and thence around the center pin and out through the eye E. This eye is preferably shown with a trap such as shown in a co-pending application of this inventor, Serial No. 681,265, filed July 3, 1946, now Patent Number 2,426,449.

However, as shown in Fig. 9, at a section such as shown at 88, and in fact going as far back as the ends of the sides 2!, 22, there may be no ballooning chamber at all. This construction can be used for instance where the bobbin is shorter than the one indicated at A.

On the other hand, as shown in Fig. 10, the length of the branches of a shuttle block similar to G can be such that they stop short of a line suchas 8-8, so that the bulk of the ballooning chamber is in the wood.

I claim:

1. The combination with a shuttle having a body with a thread eye in its side near its front end, a bobbin chamber with top front walls which converge towards its front and a shuttle.

chamber; of a shuttle block positioned in the.

shuttle block recess and having branches at its top back positioned in the branch recesses of the bobbin chamber, the top inside edges of which shuttle block branches serve as V-shaped guides at the front of the top of the bobbin chamber and which converge to the mouth of a threading chamber extending longitudinaly forward from the mouth and connecting with the shuttle eye, the material of the body under the branches of the shuttle block recess and part of the branches of the shuttle block forming part of the top front inside walls of the bobbin chamber and overhanging the front of the bobbin chamber to form a ballooning space.

2. The combination with a shuttle having a body with a thread eye in its side near its front end, a bobbin chamber with top front walls which converge towards its front and a shuttle block recess extending from a point in front of the thread eye back to the bobbin chamber and along branch recesses extending along the top of the converging front walls of the bobbin chamber; of a shuttle block positioned in the shuttle block recess and having branches at its top back positioned in the branch recesses of the bobbin chamber, the top inside edges of which shuttle block branches serve as V-shaped guides at the front of the top of the bobbin chamber and which converge to the mouth of a threading chamber extending longitudinally forward from the mouth and connecting with the shuttle eye, the material of the body under the branches of the shuttle block recess and part of the branches of the shuttle block forming part of the top front inside walls of the bobbin chamber.

3. The combination with a shuttle having a body with a thread eye in its side near its front end, a bobbin chamber with top front walls which converge towards its front and a shuttle block recess extending from a point in front of the thread eye back to the bobbin chamber and along branch recesses extending along the top of the converging front walls of the bobbin chamber, and a transverse holding screw hole; of a shuttle block positioned in the shuttle block recess and having branches at its top back positioned in the branch recesses of the bobbin chambranches serve as V-shaped guides at the frpntg;

of th t p of he obbin hamber and wh h c nerse to. he, mouth. ofath d na m e ndi g n tud na ly forwa o he. ou and connecting with the shuttle eye, having a transverse holding screw hole and; the material of the body under the branches of the shuttle block recess and part of the branches of the shuttle block forming part of the top front inside walls of the bobbin chamber and overhanging the front of the bobbin chamber to form a ballooning space; and a holding screw which passes through the holding screw holes to fix the shuttle block in place.

4. The combination with a shuttle having a body with a thread eye in its side near its front end, a bobbin chamber with top front walls which converge towards its front and a shuttle block recess extending from a point in front of the thread eye back to the bobbin chamber and along branch recesses extending along the top of the converging front walls of the bobbin chamber, and a transverse holding screw hole; of a shuttle block positioned in the shuttle block recess and having branches at its top back positioned in the branch recesses of the bobbin chamber, the top inside edges of which shuttle block branches serve as V-shaped guides at the front of the top of the bobbin chamber and which converge to the mouth of a threading chamber extending longitudinally forward from the mouth and connecting with the shuttle eye, having a transverse holding screw hole and the material of the body at the front of the bobbin chamber overhanging the front of the bobbin chamber to form a ballooning space; and a holding screw which passes through the holding screw holes to fix the shuttle block in place in the shuttle block recess.

5. The combination with a shuttle having a body with a thread eye in its side near its front end, a bobbin chamber with top front walls which converge towards its front and a shuttle block recess extending from a point in front of the thread eye back to the bobbin chamber and along branch recesses extending along the top of the converging front walls of the bobbin chamber, and a transverse holding screw hole; of a shuttle block positioned in the shuttle block recess and having branches at its top back positioned in the branch recesses of the bobbin chamber, the top inside edges of which shuttle block branches serve as V-shaped guides at the front of the top of the bobbin chamber and which converge to the mouth of a threading chamber extending longitudinally forward from the mouth and connecting with the shuttle eye, and having 119 being spring pressed friction: plates .extjendillg,

a transverse holding screw hole and a holding screw which passes through the holding screw holes to fix the shuttle block in place in the shuttle block recess.

6. The combination with a shuttle having a body with a thread eye in its side near its front end, a bobbin chamber with top front walls which converge towards its front and a shuttle block recess extending from a point in front of the thread eye back to the bobbin chamber and along branch recesses extending along the top of the converging front walls of the bobbin chamber; of a shuttle block positioned in the shuttle block recess and having branches at its top back positioned in the'branch recesses of the bobbin chamber, the top inside edges of which shuttle block branches serve as V-shaped guides at the front of the top of the bobbin part of the branches of the shuttle block forming part of the top front inside walls of the bobbin chamber and-overhanging the front of the bobbin chamber to. form a. ballooning space, there down and forward on each side of the threading chamber near its mouth.

7. The combination with a shuttle having a body with a thread eye in its side near its front end, a bobbin chamber with top front walls which converge towards its front and a shuttle block recess extending from a point in front of the thread eye back to the bobbin chamber and along branch recesses extending along the top of the converging front walls of the bobbin chamber; of a shuttle block positioned in the shuttle block recess and having branches at its top back positioned in the branch recesses of the bobbin chamber, the top inside edges of which shuttle block branches serve as V-shaped guides at the front of the top of the bobbin chamber and which converge to the middle of the shuttle at the mouth of a threading chamber extending longitudinally forward from the mouth and connecting with the shuttle eye, the material of the body under the branches of the shuttle block recess and part of the branches of the shuttle block forming part of the top front inside walls of the bobbin chamber, and there being spring pressed friction plates extending down and for- Ward in the threading chamber near its mouth.

8. A self-threading shuttle having a body with a thread eye in its side near its front end, and a bobbin chamber with top front walls, one of which is substantially straight and converges inward towards the middle to the mouth of a threading chamber which connects with the shuttle eye, such wall being undercut to form a ballooning space at the front of the bobbin chamber which space at the top curves in towards the middle under such converging top wall.

9. A self-threading shuttle having a body with a thread eye in its side near its front end, and a bobbin chamber with top front walls, one of which is substantially straight andconverges inward towards the middle to the mouth of a threading chamber which connects with the shuttle eye, such wall being undercut to form a ballooning space at the front of the bobbin chamber which space at the top curves in towards the middle under such converging top wall, there being spring pressed friction plates extending down and forward on each side of the threading chamber, in front of and near its mouth.

10. A self-threading shuttle having a body with a thread eye in its side near its front end, and a bobbin chamber with top front walls, which converge to the mouth of a threading chamber which connects with the shuttle eye, such walls being undercut to form a ballooning space at the front of the bobbin chamber which space at the top curves in towards the middle under such converging top walls.

11. A self-threading shuttle having a body with a thread eye in its side near its front end, and a bobbin chamber with top front walls, which converge to the mouth of a threading chamber which connects with the shuttle eye, such walls being undercut to form a ballooning space at the front of the bobbin chamber which space at the top curves in towards the middle under such converging top Walls, there being spring pressed friction plates extending down forward on each side of the threading chamber in front of and near its mouth.

WILFRID JOSEPH GOSSELIN.

REFERENCES CITED UNITED STATES PATENTS Number Name Date Collyer Nov. 1, 1898 Park May 17, 1938 Wood June 25, 1940 Lepage Oct. 7, 1941 Daudelin June 12, 1945

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