US2314668A - Shuttle - Google Patents

Description

March 1943- E. E. TALBOT I 2,314,668

SHUTTLE Filed March 10, 1941' ?W% 23/ a $4 254 J96 I I I 27 v I INVENTOR.

A TTORNEYS.

Patented Mar. 23, 1943 onrrso STATES ATENT OFFICE SHUTTLE Evaristc E. Talbot, Fall River, Mass.

Application March 10, 1941, Serial No. 382,469

Claims.

This invention relates to a shuttle of either the automatic or hand threading type, and more particularly to the means for guiding the thread as it is drawn from the bobbin out of the shuttle.

In the use of shuttles of this character, which are usually made of wood, although sometimes made of fiber, the wood or fiber, if the thread were drawn against its surface, would so cut into this material that some guiding means presenting a hard surface is provided to prevent such cutting action. Such guides usually consist of a center pin about which the yarn may be drawn, and some sort of metal eye at the outer surface of the side wall of the shuttle through which the thread passes. A metal eye frequently wears rapidly, especially with the use of worsted yarn, and must frequently be replaced.

One of the objects of this invention is to provide an arrangement whereby the eye may be formed of a porcelain block to better withstand the wear of the yarn, with a means for holding this porcelain block in place.

Another object of the invention is to so position the porcelain block that the thread may enter the eye therein but will be protected against unthreading.

Another object of the invention is to relieve the porcelain block from pressure due to movement of the overhanging portion of the shuttle relative to the body portion of the shuttle.

Another object of the invention is to provide holding means on the thread eye block for assisting in holding it in position.

Another object of the invention is to provide a holding means on a center pin to hold it in position in the shuttle; also, to provide a center pin which may be driven into place with minimum liability of splitting the shuttle.

The invention further consists in a center pin which will extend into the overhanging portion of the shuttle formed by the threading slot and which will be relieved of relative motion of this part of the shuttle and the body of the shuttle.

With these and other objects in View, the invention consists of certain novel features of construction, as will be more fully described, and particularly pointed out in the appended claims.

In the accompanying drawing:

Fig. l is a top plan view of a fragmental portion of the shuttle;

Fig. 2 is a side elevation of a smaller portion of the shuttle shown in Fig. 1;

Fig. 3 is a section on substantially line 3-3 of Fig. 1;

Fig. 4 is a perspective view of the block which forms the thread eye;

Fig. 5 is a perspective View of the center pin;

Fig. 6 is a section on line 6-6 of Fig. 5;

Fig. 7 is a transverse section showing both the center pin and the block which forms the thread eye in the shuttle;

Fig. 8 is a sectional view through the stock of the shuttle showing the center post in position in the wood of the body of the shuttle;

Fig. 9 is a section on substantially line 9-9 of Fig. 3;

Fig. 10 is a perspective view of a modified form of block forming a thread eye.

The shuttle which I have illustrated is usually formed of wood having a body part It}, bobbin chamber II, and throat portion, designated generally I2. The bobbin is designated l3, located in the bobbin chamber ll, usually centrally between the side walls It and [5 thereof. The thread l6 leads from the bobbin l3 through the throat portion I2 in an opening I! which extends from substantially the axial center of the shuttle laterally to the front side [8 of the shuttle to connect with the thread groove 19 of the shuttle.

In order that the thread may be positioned in this opening I I, there is a vertical slot 29 extending longitudinally forwardly of the shuttle and of a depth substantially the distance that the opening ll is below the top surface 2| of the shuttle. This slot extends forwardly and gradually upwardly to join the slot 22 which extends from the front surface or front side of the shuttle inwardly to meet the slot 20 and to connect with the opening ll. Thus, the thread It, as it is drawn forwardly, will lay-in the slot 20; and, as it is thereafter drawn rearwardly, it will drop into the slot 22 which guides it into the opening I1. Thus, this threading slot 29, 22 serves to guide the thread into the threaded opening I! in the particular form of shuttle which I have here illustrated, although it will be readily apparent that metallic guiding blocks may be used for this purpose in other types of shuttles.

The portion which extends above the threading slot 20, 22 and which I designate 23 is referred to as the overhanging portion, and it is this portion which may move relative to the remainder of the body of the shuttle due to the fact that by reason of the threading slot, it is not as well supported.

In order that the wear surface may be provided where the yarn l6 changes direction in the throat, there is a post provided, shown in Fi 5, which is designated generally 25. This post is positioned in a previously-formed opening 28 (see Figs. '7 and 9), formed at a location adjacent the slot 20 and its juncture with the opening II, the stock of the shuttle being cut away as at 43. and provides a wear surface about which the thread may be drawn. This post is flattened on its opposite surfaces, as at 21, and is provided with teeth or serrations 28 on its other edges. It is forced into the Opening 26, with the teeth in general alignment with the grain of the wood so as to force into the grain of the wood with the grain which extends longitudinally of the shuttle so that no splitting will occur while the flat surfaces 21 relieve the strain on the sides of the opening wood of the shuttle. This post may be driven into position in this manner without the danger of splitting. This post may be of any suitable hard material, the most effective whichI know of being porcelain.

In order to provide a thread eye instead of utilizing a metal coil of wire, and in order to provide a structure such that it may be made of porcelain, I have provided a recess 3%) extending wardly from the bottom surface 3| of the shuttle and at a location between the front side IQ of the shuttle and the axial center of the shuttle (see Figs. 1, '7, and 9), which recess is oblong in shape and longer in the direction of length of the shuttle than laterally thereof to receive a block of substantial size. This recess intersects the opening I! through which the thread passes and extends not only in the body portion l ii of the shuttle but also into the overhanging portion 23 thereof.

This recess receives a block member 32 (shown in Fig. 4) of a shape substantially the shape in cross section of the recess 30 (shown in Fig. 9) and of a suihcient length to extend from the bottom inwardly to intersect the opening 11. Notches 33 to provide teeth 34 or serrations are formed in the edge of the block to bite into the surface 35 of the recess and hold the block firmly in position. The relative size of the block and the recesses is such that a tight fit is formed in the body portion of the shuttle where these teeth occur. The upper portion of the block is reduced as at 36 which is the part that. extends into the overhanging portion 23, and thus there is clearance or a space 3'! (see Fig. 7) about this portion of th block and the wall of the reces which may also be enlarged, as I have shown in Figs. 3 and 7, about this upper portion.

An eye 38 is formed in this block which will be positioned to register with, although slightly smaller than, the opening l1, so that the Wear will be taken by the surface of this eye as the thread passes therethrough. An entrance 39 to this eye 31 is formed by a slot at such location that a hook 40 is formed, the extremity of which, 4|,is located below the surface 42 of the slot 22 so that the thread must drop downwardly in the space 3! about the upper end of the block in order to get below the hook end 4| and enter the eye 38. However, as the outer surface 42 of this hook portion is curved downwardly, the thread is guided into this entrance opening by a pull on the thread rearwardly of the throat portion 12. Thus, after the thread enters the eye 38, it will not be drawn out of the eye by a pull in the opposite direction, as the curved surface of the eye would prevent its being led beneath the horn or hook end 4 i.

In the modified block shown at 45, the entrance to the eye 38 is shown from the top, and in this instance the end 43 of the hook would be above the upper surface 41 of the slot 22 so that the yarn must lift upwardly du to th curved guiding surface 48 to get over the horn end 46 and into the eye 33, after which, similarly, it could not be Withdrawn by a pull of the yarn in an opposite direction. These walls 42 and 41 of the slot which enter and become a part of the opening IT, as will be seen in Fig. '7, are on opposite sides of the block and thus provide protection against unthreading from both sides of the block which is a distinct advantage in a construction of this character.

After the thread eye block and the center pin are inserted in position, they are locked by the provision of a metallic pin 53, driven into the stock of the shuttle beneath them.

It will thus be apparent that I have provided a threading block which may be made of porcelain and inserted tightly and firmly into a shuttle in a new and different position than usual; also, that the arrangement is such that threading may readily be had in an accustomed manner; and that unthreading is more effectively protected than customary; also, that there is provided a center pin which may be inserted without the danger of splitting the shuttle and which will likewise be effectively held in position.

I claim:

1. In a shuttle having top and bottom surfaces, a bobbin chamber and a throat portion at one end, an opening through the stock of the shuttle at the throat portion for the passage of the thread and a threading slot provided in the shuttle extending to the top and side surfaces thereof for leading the thread into said opening, said slot extending inwardly from the surface of the shuttle at an acute angle to the axis of the shuttle to provide an overhanging portion of the stock, and a center post of a fragile material in the body of the shuttle and extending into the overhanging portion of the stock of the shuttle, said overhanging portion being provided -with a recess to receive said post. and said recess being of such a size as to cause said overhanging portion to be completely out of contact with said pos 2. In a shuttle having top and bottom surfaces, a bobbin chamber and a throat portion at one end, a thread opening through the stock of the shuttle at the throat portion for the passage of the thread, a threading slot provided in the shuttle extending to the top and side surfaces thereof for leading the thread into said thread opening, said slot extending inwardly from the surface of the shuttle at an acute angle to the axis of the shuttle to provide an overhanging portion of the stock, said shuttle being provided with a recess extending inwardly from the bottom surface of the shuttle into said overhanging portion and intersecting said thread opening a block in said recess having a portion thereof extending into the enlarged portion of said recess and having an eye with the opening therein in line with said thread opening and with the entrance to said opening located outwardly from the surface about the thread opening the recess in said overhanging portion being of such a size as to cause said overhanging portion to be completely out of contact with said post.

3. In a shuttle having top and bottom surfaces, a bobbin chamber and a throat portion at one end, a thread opening through the stock of the shuttle at the throat portion for the passage of the thread, a threading slot provided in the shuttle extending to the top and side surfaces thereof for leading the thread into said thread opening, said slot extending inwardly from the surface of the shuttle at an acute angle to the axis of the shuttle to provide an overhanging portion ofthe stock, said shuttle being provided with a recess extending inwardly from the bottom surface of the shuttle into said overhanging portion and intersecting said thread opening a block in said recess having a portion thereof extending into the enlarged portion of said recess and having an eye with the opening therein of greater dimension than the said thread opening and with the entrance to said opening so positioned thereon as to locate the same on one side of said slotthe recess in said overhanging portion being of such a size as to cause said overhanging poftion to be completely out of contact with said post.

4. In a shuttle having top and bottom surfaces, a bobbin chamber and a throat portion at one end, a thread opening through the stock of the shuttle at the throat portion for the passage of the thread, a threading slot provided in the shuttle extending to the top and side surfaces thereof for leading the thread into said thread opening, said slot extending inwardly from the surface of the Shuttle at an acute angle to the axis of the shuttle to provide an overhanging portion of the stock, said shuttle being provided with a recess extending inwardly from the bottom surface of the shuttle into said overhanging portion and intersecting said thread opening, a block in said recess having a portion thereof extending into said portion of the recess extending into said overhanging portion, the said portion of the block located in said overhanging portion being of less dimension than said recess and completely out of contact with the walls of the recess and having an eye therein in line with said thread opening and with the entrance thereto located at a position outwardly from the surface about the thread opening.

5. In a shuttle having top and bottom surfaces, a bobbin chamber and a throat portion at one end, a thread opening through the stock of the shuttle at the throat portion for the passage of the thread, a threading slot provided in the shuttle extending to the top and side surfaces thereof for leading the thread into said thread opening, said slot extending inwardly from the surface of the shuttle at an acute angle to the axis of the shuttle to provide an overhanging portion of the stock, said shuttle being provided with a recess extending inwardly from the bottom surface of the shuttle into said overhanging portion and intersectingasaid thread opening, a block in said recess having a portion thereof extending into said portion of the recess extending into said overhanging portion, the said portion of the block located in said overhanging portion being of less dimension than said recess and completely out of contact with the walls of the recess and having an eye therein in line with said thread opening and with the entrance thereto located at a position outwardly from the surface about the thread opening, the portion of the block extending in the lower portion of said recess having serrations thereon at a location to engage the walls of said recess lengthwise of the shuttle.

EVARISTE E. TALBOT.

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