US1126338A - Self-threading shuttle. - Google Patents

Description

R. N. ALLEN.

SELF THREADING SHUTTLE. APPLICATION FILED JULY 6, 1914.

1 ,11 26,338, Paienteoi Jan. 26, 1915.

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ROBERT 1\T. ALLEN, 0F METHUEN, MASSACHUSETTS, ASSIGNOR TO U. S. BOBBIIN' & SHUTTLE COMPANY, OF PROVIDENCE, RI-IOIDE ISLAND, A CORPORATION OF NEW JERSEY.

SELF-THREADING SHUTTLE.

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Specification of Letters Patent.

Patented Jan. 26, 1915.

To all whom it may concern:

Be it known that I, ROBERT N. ALLEN, a citizen of the United States, residing at Methuen, in the county of Essex and State of Massachusetts, have invented a new and useful Improvement in Self -Threading Shuttles, of which the following is a specification.

This invention relates to certain new and useful improvements in self threading shut tles.

The primary object of the invention is to provide improved means for automatically drawing the thread into the delivery eye, which means can be economically produced, easily positioned with relation to the shuttle, and which will effectively retain the thread against accidental disengagement.

till further, the invention aims to provide a shuttle threading means which enables the threading operation to be easily and quickly performed.

In the drawings Figure 1 is a top plan view of the invention in position in a shuttle, the latter being illustrated in fragment. Fig. 2 is a longitudinal vertical sectional view of Fig. 1. Fig. 3 is a section taken on the line 33 of Fig. 2, and Fig. i is a plan view of the blank from which the body of the threading device is formed.

In proceeding in accordance with the invention, a sheet metal blank of the form depicted in Fig. i of the drawings is folded along the lines a and b to produce a body portion which has a bottom 1 and parallel sides 2 and 8. The side 2 which has a contracted extension of the form shown in Fig. at is then folded on the lines 0 and d to produce a top part or roof 4: and a depending part 5, the latter being provided with a rearwardly directed pointed finger 8, the point of which projects slightly into an aperture 9 provided therefor, in the side 3 of the de vice. The side 3 also has an extension 6 that is bent to lie parallel to the bottom 1 and is bent over at 11 on the line 6 to bite into the wood of the shuttle body at the inner side of the usual diagonal slot 12' which latter leads to the delivery eye. The extension 6 thus acts to firmly secure the device in position with relation to the shuttle. Side 3 has a pointed finger 12 which extends forwardly thereof and projects slightly into an aperture provided for its reception in the depending part 5 of the device. The side 3 also has a thread opening 14: which is guarded by a finger 15 which latter extends above and in spaced relation to the bottom 1, as illustrated in Fig. 2 of the drawings. Holes 16 and 17 register and are formed in the sides 2 and 3 respectively to receive a screw 17 which further secures the device n the shuttle throat, the screw 17 also passlng through a thread guide block 18, which is of a width to be received in the space between the sides 2 and 3. The block 18 has a horizontal channel 19 which terminates in a vertical end 20 so as to allow the thread to be drawn down and through the opening 14, as shown in Fig. 2 of the drawings. Vertical pins 21 and 21 are positioned adjacent to the delivery eye E of the shuttle so that the thread may engage the same and thus prevent wear on the wood which defines the delivery eye. The depending part 5 .where the same has the aperture 13 formed therein is bent outwardly as indicated at 22 in Fig. 1 of the drawings, in order to provide a guard for the finger 12, since the thread in order to pass the finger 12 will need be first moved up and over part 22, and then under finger 12 and up past same, which part 22, by its stated disposition, thus provides an effective guard for finger 12, which will positively prevent accidental movement of the thread therepast, and in addition since the part 22 extends in a plane above the plane in which the finger 8 extends, it will be evident that the thread will be effectively prevented from being accidentally disengaged.

In operation, the thread is placed in the vertical thread passage that the space which exists between the part 5 and side 3 provides and is then moved downwardly under finger 8, then under finger 12, and under finger 15, and out through the delivery eye, whereby it will be evident that the thread is securely held against accidental disengagement. Since the fingers 8 and 12 project slightly into their respective apertures, it will be apparent that the thread is thus prevented from passing the fingers except with the expenditure of force to effect such passage.

Having thus described my invention, I

claim as new and desire to secure by Letters Patent I 1. In a self threading shuttle, a U-shaped body one side of which is extended to form a top the free end of which top depends downwardly in spaced relation to the opposite side, a rearwardly extending finger on the rear end of said depending part and an outwardly projecting part formed with an aperture on said depending part, said opposite side having an aperture in which the tip of said finger projects, and also having a finger at its front which extends in said outwardly projecting part, said fingers being located one above the other, said opposite side having a downwardly bent part which bites into the shuttle, and a channeled guide block located between the sides and below the first named finger, said opposite side having a thread hole and a finger which guards said hole and is located above the bottom of the body in spaced relation thereto.

2. In a hand threading shuttle, a U-shaped body one side of which is extended and formed to provide a top located in the space between the sides and a depending part which is located in spaced relation to the opposite side, said depending part and said opposite side having apertures which are located one above the other, a finger on the opposite side which extends into the aperture of the depending part and a finger on the depending part which extends into the aperture of said opposite side.

3. In a hand threading shuttle, a U-shaped body having a top part which is formed with a depending portion that forms a thread passage in conjunction with the inner face of one of the sides of the body, and means at opposite ends of the body located on said depending portion and on said side of the body to guard said passage to prevent movement of the thread upwardly thereout.

4. In a hand threading shuttle, a U-shaped body having a top part which is formed with a depending portion that forms a thread passage in conjunction with the inner face of one of the sides of the body, said side of the body being formed with a de livery opening and a guard finger, and said depending portion and said side of the body having openings and guard fingers respectively which latter extend in the openings, the last named guard fingers being located on opposite sides of the delivery opening.

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

ROBERT N. ALLEN.

Witnesses:

ALBION G. PEIRCE, ALICE F. HORNE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.

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