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Publication numberUS908708 A
Publication typeGrant
Publication dateJan 5, 1909
Filing dateJun 11, 1908
Priority dateJun 11, 1908
Publication numberUS 908708 A, US 908708A, US-A-908708, US908708 A, US908708A
InventorsCharles A Stewart
Original AssigneeCharles A Stewart
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Sewing-awl.
US 908708 A
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Description  (OCR text may contain errors)

C. A. STEWART.

SEWING AWL.

APPLICATION FILED JUNE 11, 190B.

Patented Jan. 5, 1909.

@IIIIH H Ohareafl Stewart ll/itrzesaea CHARLES A. STEWART, OF LOS ANGELES, CALIFORNIA.

SEWING-AWL.

Specification of Letters Patent. ,1

Patented Jan. 5, 1909.

Application filed June 11, 1908. Serial No. 437,915.

To all whom it may concern:

Be it known that 1, CHARLES A. STEWART, a citizen of the United States, residing at Los Angeles, in the county of Los Angeles and State of California, have invented a new.

and useful Sewing-Awl, of which the following is a specification.

This invention relates to a sewing awl. The principal objects thereof are to provide a sewing awl with an improved tension device and means whereby with a very simple mechanism the awl may be caused to feed the thread by the motion of the needle itself when insertedin the leather or the like upon which it is to operate; to construct the tension and feeding device in a simple and convenient location cooperating with a needle bar or holder which carries a needle and which moves therewith; to provide improved means for securing a plurality of needles or other tools in the body of the implement; and generally to improve and simplify implements of this character.

Reference is to be had to the accompanying drawings, in which Figure 1 is a central longitudinal sectional view of one form of needle awl in which the invention may be embodied. Fig. 2 is a similar view at right angles to the plane of Fig. 1 showing a slight modification; Fig. 3 is a plan of a portion of the device; and Fig. 4 is a sectional view showing a position of the parts when feeding.

The invention is shown as comprising a hollow handle 10 having a space 11 therein, which is removably secured on a body 12 having a longitudinal passage 13 there-.

through. In this passage is located a needle holder or bar 14 provided on the end with a chuck 15 in which a needle 16 may be secured. This is preferably done by means of a cap 17 adapted to be screwed on the chuck so as to tighten the jaws thereof, and having a flange covering the end of the body 12. There is a slight play between the end of this flange and the bead 18 on the body which the flange is adapted to engage. In the passage 13 is located a spring 19 engaging a shoulder in the passage and a pin 20 on the needle bar to normally hold the needle bar and cap 17 in a forward position, but to permit the same to slide back when the needle is thrust into the leather or other material to be operated upon, until the flange strikes the stop or head 18.

The thread is brought down to the needle through an opening 21 in the end of the handle or from a spool 22 j ournaled in said opening and in the end of the needle holder. in either case it passes through an eye in a guide plate 23 and down through a passage 2i in a bar 25 which is mounted on the needle bar. This passage 21 extends through the bar 25 in an inclined direction, the thread being brought down first to the lower side of said passage, then out through the upper side, and then down through a passage 26 of the body to the needle. As the thread passes part way around the circularbar 25 before it enters the passage 21 and then is brought back and extends part way around it again before it enters the passage 26 and as in both of these places the thread bears on a curved tension plate 28, it will be seen that any attempt which may be made to pull the thread out along the needle while the needle is in its normal position 1 would simply result in pulling the bar 25 in the same direction and would increase the tension with which the tension device 25, 28 holds the thread. Consequently the thread will be absolutely prevented from feeding forward at this time. Then the needle is thrust into, the leather or other material, however, the spring 19 yields, which results in forcing the needle bar back and removing the bar 25 from contact with the tension plate, thus releasing the tension. At this time, therefore, the thread will be per mitted to feed forward freely so that as the needle is being thrust through the leather the thread will be automatically supplied to it, but as soon as the force which pushes the needle holder back is released, the spring will bring it forward and the tension will again be applied, so that the stitches will be made tight bypulling back on the sewing awl after it has once pierced the leather or the like. It will be seen, therefore, that by avery simple construction the sewingawl is provided with an automatic feeding device which operates at the proper time to automatically apply the tension as that is desired to cause the stitches to be made tight and strong. The guide plate 23 also serves to keep the thread in position to bring it into proper relation with the tension device. It will be understood, of course, that the tension plate 28 is made of such form that its sides slant slightly so as to receive the sides of the bar 25 and clamp the thread between them on both sides of the bar by the wedging action the plate. The body 12 in addition to the passage 26 is provided with a plurality of sockets 30,-

7 preferred form of the invention, I am aware that many modifications can be made therein, and that it can be carried out in many other ways without departing from the scope of the invention as expressed in the claims. Therefore, I do not wish to be limited to all the details shown, but

lVhat I do claim is 1. A sewing awl having a handle, a needle holder movable with respect thereto, and a tension 'device adaptedto be"controlled by the movement' of said he" "lle'Jhol'der.

' 2. In a'sewing'awl, the coinbination ofa handle,a needle holder longitudinally mov' able with respect thereto,andf-means move able with the needle holder for gripping the thread in one position of the needle holder.

3. In a sewing awl, the combination of a handle, a needle holder longitudinally movable with respect thereto, means movable with the needle holder for-gripping the thread in one position of the needle holder, and yielding means for moving the needle holder to said position.

4. In a sewing awl, the combination of a longitudinally movable needle holder, a spring for moving it in one direction, and a bar on the needle holder adapted to grip the thread when the needle holder is pushed out by the spring.

5. In a sewing awl, the combination with a handle, a needle holder movable with respect thereto, of a tension device comprising a member mounted to move with the needle holder, and a fixed member adapted to coo aerate with the first named member to hole the thread.

6. In a sewing awl, the combination of a longitudinally movable needle holder. a spring for moving it in one direction, and a tenslon device comprising a bar 011 the needle holder adapted to grip the thread on both sides of said bar when the needle holder is pushed out by the spring.

'7. In a se-wing awl, the combination of a movable n'ee'o-le holder, 'a"'bar-" there0n hav:

ing a slanting passage therethrough for the thread, and a tension plate adapted to en gage said bar on both sides thereof.

of the latteron .movable. needle holder, a bar thereon having 8. In "a sewing awl, the combination of a a slanting passage therethrough for the thread, a tension plate adapted to engage said bar on both sides thereof, and a guide for the thread for leading the thread to. the most remote end of said passage, said thread being brought through the passage and out at the opposite end and part way around the bar, whereby the thread will be clamped on both sides of the bar.

9. A tension device for the purpose de-' scribed, comprising a movable bar, a cross bar thereon having a slanting passage therethrough for the thread, the thread being brought from one. side of the barinto the more remote end of the passage and out through the passage on the other side and part way around the bar, and a tension plate adapted to engage the thread on both sides of the bar.

10. In a sewing awl, the combination of a handle, a needle holder longitudinally movable with respect thereto, and means movable with the needle holder for gripping the thread when the needle holder is in its outermost position.

11. Ina sewing awl, the combination of a handle, a needle holder longitudinally mov-. able with respect thereto, a'spring for moving it in one direction, and means movable with the needle holder adapted to grip the thread when the needle holder is pushed out by the spring.

12. A sewing awl having a handle, a relatively movable needle holder thereon, means for preventing the thread from feeding, and means controlled by the needle holder for operating said feed-preventing means.

13. A sewing awl having a handle, a needle holder longitudinally movable with respect thereto, and means mounted on the needle holder for controlling the tension of the thread.

14. A sewing awl having a handle, a tension device, a needle holder movable with respect thereto, and means operated by the. needle holder for automatically releasing the tension and allowing the thread to feed.

15. In a sewing awl, the combination of a handle, a tension device, a longitudinally movable needle holder movable with respect thereto, and means operated by the needle holder for releasing the tension and allowing the thread to feed.

16. In a sewing awl, the combination of a handle, a needle holder, resilient means for moving the needle holder with respect to the handle, a tension device, and means operated by the needle holder in opposition to the resilient-means for releasing the tension device and 'all-owing'the thread to feed.

17. In a sewing awl, the combination of a' longitudinally movable needle bar, means connected with the needle bar for releasing the tension when the needle bar is pushed in, a cap or sleeve constituting means for securing a needle in the needle bar and movable therewith, and a stop for engaging the cap and limiting the motion of the needle bar inwardly.

18. In a sewing awl, the combination of a handle, a needle bar movable with respect to the handle, a spring for holding the needle barout, means operated by the needle bar for releasing the tension of the thread when the needle bar is pushed in, and a stop for limiting the inward motion or" the needle bar to permit the thread to feed while the needle bar is pushed in.

19. In a sewing awl, the combination of a handle, a needle bar movable with respect to the handle, means connected with the needle bar for releasing the tension when said needle bar is pushed in, said needle bar having means for holding a needle, whereby pressure on the needle will release the tension device,

and a cap mounted on and movable with the needle bar for securing the needle to the needle bar.

20. A sewing awl, comprising a hollow handle having a chamber therein and a passage at one end thereof through which the thread may be passed, a spool adapted to be journaled in said passage, a needle bar having a journal for the other end of the spool, and a guide arranged on the needle bar for the thread.

21. A sewing awl, comprising a body having a passage for the thread, and a plurality of sockets therein, each socket having a spring for securing a needle or tool therein.

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

CHARLES A. STEWART. Witnesses:

ALBERT E. FAY, MARY E. REGAN.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3110205 *Oct 17, 1961Nov 12, 1963Small Business AdministInjector tool
US3313189 *Jun 15, 1965Apr 11, 1967Marra LewisDual cartridge construction for repair product
US4273058 *Mar 1, 1979Jun 16, 1981Daniel MartushevEmbroidery needle assembly
US5351404 *Sep 20, 1993Oct 4, 1994Smith John WChangeable tip awl
Classifications
Cooperative ClassificationD05B81/00