US1104416A

US1104416A - Hand-threading shuttle.

Info

Publication number: US1104416A
Application number: US76076313A
Authority: US
Inventors: Nazaire Demers
Original assignee: Individual
Current assignee: Individual
Priority date: 1913-04-12
Filing date: 1913-04-12
Publication date: 1914-07-21
Anticipated expiration: 1931-07-21

Description

N. DEMERS.

HAND THREADING SHUTTLE.

APPLIOATION FILED APE.12,1913.

Patented July 21, 1914-.

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INVENTOR WITNESSES wAsymumN, 11c.

N. DEMERS.

HAND THREADING SHUTTLE.

Patented July 21, 19M.

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' l/VVENTOR nisrrnn STATES PATENT FFTCE;

HAND-THBEADING SHUTTLE.

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Specification of Letters Patent.

Patented July 21, 1914.

Application filed April 12, 1913. Serial No. 760,763.

To all whom it may concern Be it known that I, NAZAIRE DEMERS, c1t1- zen of the United States, residing at Manchester, in the county of Hillsboro and State of New Hampshire, have invented new and useful Improvements in Hand-Threading Shuttles, of which the following is a specification.

My invention pertains to shuttles and more particularly hand threading shuttles.

The object of the invention is to provide a hand-threading shuttle that is well-bah anced and light in weight and one calculated to be quickly and inexpensively produced and which embodies no part-s liable to wear out after a short period of use or parts likely to interfere in any measure with the operation of a loom.

The invention also seeks to avoid undue weakening of the shuttle body and to preclude casual unthreading of the shuttle.

To the attainment of the foregoing and other objects hereinafter set forth the in vention consists in the peculiar construction, novel combination of parts as hereinafter described and definitely claimed.

Tn the drawings, accompanying and forming part of this specification: Figure 1 is a plan of so much of a shuttle as is necessary to illustrate the preferred embodiment of my invention. Fig. 2 is a front side elevation of the same. Fig. 3 is an inverted plan view. Fig. 4 is a transverse section taken in the plane indicated by the line 44 of Fig. 2. F 5 is a sect-ion taken on the line 55 of Fig. 1. Fig. 6 is a section taken on the line 66 of Fig. Q'with some parts in elevation. Fig. 7 is a cross-section on line 7-7 of Fig. 1. Fig. 8 is a cross-section on the line 8-8 of Fig. 2. Fig. 9 is a perspective of my novel friction spring. Fig. 10 is a perspective of the novel eye.

Similar numerals of reference designate corresponding parts in all of the views of the drawings.

The shuttle body 1 is provided with the usual chamber 2 to receive a bobbin 3 and is otherwise of the ordinary well-known general construction.

In furtherance of my invention the shuttle body is provided in its upper side with a longitudinal channel 4 that extends about the proportional distance illustrated from the chamber 2 toward the tip of the body and is of the depth shown in Figs. 4 and 8.

Arranged in a transverse aperture 5 that j'intersects the inner portion of the channel 4 is a pin 6. This pin rests in the portion of the aperture between the channel 4 and the front side of the shuttle body, and has a sharp point disposed in the channel as ,shown. Consequently the pin is enabled to lock the thread in the channel 4. The said pin 6 is not essential to the successful practice of my invention though it is preferably employed. Manifestly it can be adjusted as occasion demands through the medium of a thin nail or piece of wire introduced from either end of the aperture 5 as is necessary. When deemed expedient a screw 7 is embedded in the shuttle body 1 at a point adjacent the aperture 5 in order to lend increased strength to the body. Extending crosswise of the shuttle body is a bore 8 and in the said bore is fixed the eye 9 com prised in my invention and hereinafter specifically described.

Communicating with the forward end of the channel 4 and extending forwardly and diagonally outward therefrom to the forward side of the shuttle body is a slit 10, and formed in the forward side of the shuttle body and leading backwardly from the slit 10 to the eye 9 is a horizontal slit. Extending upwardly from the underside of the shuttle body and intersecting the forward portion of the channel 4 is a vertical bore 12, Figs. 3, 5 and 7, and in the said bore 12 is positioned the friction spring 13 which con stitutes an important feature of my invention.

As will be observed by reference to Fig. 6, the eye 9, which is preferably of metal, is arranged immediately in advance of the friction spring 18, and by comparison of Figs. 6 and 10, it will be noted that the eye has a notch 14 in alinement with the channel 4 and also has a slot 15 that extends outwardly from the notch. Said slot 15 merges at its outer end into a V-shaped slot 16, and the outer portion of this latter extends to the end of the eye 9 at the front side of the shuttle body and is there open.

As will be observed by comparison of Figs. 7 and 9 my novel friction spring comprises a loop 17 having its bight flared outwardly, and a loop 18 that extends upwardly from one end of the loop 17 and has its bight disposed at a right angle to that of the loop 17. i

disposed at the upper end of the bore 12, and

that the bight of the loop 18 is arranged at a right angle to the length of the channel 4. It will further be noted by reference to Fig. 7 that the terminal of the loop 18 is arranged adjacent the rear side of the shuttle body 1. Both terminals of the friction spring are indicated by 19 and bear at their lower ends against the side wall of the bore 12, and by virtue of this and the resiliency of the spring it will be manifest that there is no liability of the spring being casually displaced during the use of the shuttle. Then, however, it is desired for any reason to remove the spring, the same can be readily accomplished by introducing a suitable instrument and displacing the terminals of the spring from their complementary bearings. The eye 9 is arranged in the transverse bore 8 and is held in position and against casual displacement by frictional contact, and this with the tubular end portion of the eye (see the right-hand end of Fig. 10) adjacent the rear side of the shuttle body. In the event of the eye working loose it can be removed from the bore and a wood plug 30 forced into the tubular portion of the eye (Fig. 10) to expand the eye, and then the eye can be forced back into the shuttle body, or, if preferred, the wood plug 30 can be forced into the tubular portion of the eye while the eye remains in the shuttle body. At this point I would have it understood that it is necessary to remove the friction spring 13 as a condition precedent to the removal of the e e 9.

. In threading the shuttle, the thread is pulled inthe curved slit 10 and slips downwardly in the mouth of the friction spring 0., between the bights of the two loops thereof. This curves the thread and at the same time the thread slips down by the point of the pin 6 and deep under the said point. During the pulling of the thread in the slit 11 toward the eye 9, the thread slips in around the point or apex of the slit 16 in the eye and drops under the point at the end-of the said slit 16. With this done it is impossible to unthread the shuttle. It will also be noticed in this connection that in delivering the thread balloons around the end of the bobbin and plays up and down in the entrance channel 1- and under the pin 6. It will also be noticed that considerable play space for the thread is affordedv under the pin 6, and by reference to Fig. 6 it will be seen that a portion of thefriction spring 13 is in the same vertical plane as the notch 14 in the eye 9, and the thread turns sharply around the said spring portion and enters the notch of the eye to the best advantage. When the filling is ofsuch character that friction or tension is not necessary, the friction spring 13 can be removed whereupon the thread will turn around the lip at the left-hand side of the notch 14: in the eye 9.

It will be gathered from the foregoing that my improvements are calculated to prevent accumulation of lint or waste in the throat of the shuttle.

lVhile my novel shuttle is a hand-threading shuttle, I would have it understood that the eye 9 and the friction spring 13 are susceptible of being used to advantage in a self-threading shuttle.

1n the use of the shuttle, the thread has considerable space to play at 35, Fig. 5, under the pin 6, and the friction spring branch holds the tension of the thread to prevent the thread from kinking or slackening the instant that the shuttle dwells, and further that the shape of the slot in the eye at 16 allows the thread to play.

Having described my invention, what I claim and desire to secure by'Letters-Patent, is:

1. The combination of a shuttle body having a chamber and a channel extending 1ongitudinally from said chamber toward its tip and also having a transverse aperture that intersects the inner portion of said channel and extends between opposite sides of the body, and further having a vertical bore that extends between its lower side and said channel, a bore extending between the forward and rear sides of the body, a slit extending forwardly and diagonally outward from said channel to the forward side of the body, and a slit in said forward side-and leading backwardly from the first-named slit to the second-named bore; a pin disposed and adjustable endw-ise in the said transverse aperture and having its inner end arranged in the said channel; a tension device arranged in said vertical bore of the body and having a mouth disposed in alinement with the channel; and an eye arranged in thesecond-named bore of the body and communicating with the last-named slit of the body and also communicating with the channel and the tension device;

2. The combination of a shuttle body having a chamber and a longitudinal channel extending from the chamber toward a tip of the body and also having a vertical bore 1 7 extending upwardly from its lower side and communicating with the channel; and a friction spring secured in the said vertical bore and comprising a loop having on its uppermost portion a bight that is flared toward one side of the body, and a loop having at its uppermost portion a bight that is disposed at a right angle to the firstnamed bight and has its inner leg inclined upwardly and outwardly.

8. The combination of a shuttle body having a chamber and a longitudinal channel extending from the chamber toward a tip of the body and also having a vertical bore extending upwardly from its lower side and verse bore and diagonal and longitudinal slits connecting the channel and the transverse bore; a transverse eye arranged in said transverse bore and having a notch communicatingwith the channel in the body and also having a tortuous slit extending outwardly from the notch to its delivery end; and a friction spring secured in the said vertical bore and comprising a loop having on its uppermost portion a bight that is flared toward one side of the body, and a loop having on its uppermost portion a bight that Copies of this patent may be obtained for five cents each, by addressing the is disposed at a right angle to the firstnamed bight and has its inner leg inclined upwardly and outwardly; said uppermost portions of the loops forming a mouth, for the purpose set forth,

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses. r

NAZAIRE DEMERS. Witnesses:

P. PILLEUR, J. A. BOIVIN.

" Commissioner of Patents,

Washington, D. 0."