US353040A - Edwin strain - Google Patents

Description

l (No Model.)

EysTvRAIN.

NEEDLE.

PatentedNov. 23, 1886.

9v M @A w. 5),.4..

UNITED STATESy PATENT f OFFICE.,

EDWIN STRAIN, oE MELROSE, AssIeNoE fro MILES S. voAHILL, oE BoSTN,

MASSACHUSETTS.

NEEDLE.

'SPECIFICATION forming part of Letters Patent No. 353,040, dated November 23l 1886,

Application filed September 18, 18H6. Serial No. 218.855. (No model.)

T all whom, it may concern.lv

Be it known that I, EDWIN STRAIN, of Melrose, in the county of Middlesex and State of Massachusetts, a citizen of the United States, have invented a new and useful Improvement in Needles, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, Aforming a part of this Specification, in explaining its XO nature.

The invention relates to a needle having a point and an eye, and adapted to hold a single thread or cord by its end, and to be readily secured 'thereto and detached therefrom." This result is obtained by means of an eye of peculiar construction, made wider at one side of the needle-shank thanat the other, and having a recess of peculiar shape extending from the eye to the end of the needle, which recess 2O is also wider at its base than at its opening, the eye and recess being so shaped that they are adapted to securely hold one en d of a cord or thread in a manner to permit the cord orv view in vertical section, showing the relation of the cross-slot to the longitudinal recess opening or extending therefrom. Fig. shows the same section with a. section of cord or thread as it is when the needle is fastened or Secured thereto. Fig. 6 is a horizontal section upon the line y y of Fig. 4.. Fig. 7 is a horizontal section upon the line wx'of Fig. 4. Fig. 8 illustrates in Section modifications hereinafter described. f

' a represents the needle. It has the point a and the eye c. The eye is formed by means of a cross-slot, c3, having the wide entrance a* upon one side of the needle-shank and the narrow section c5 upon the opposite Side, the slot 5o being substantially V-shaped in cross-Section.

'therein shown.

From the narrow part of the slot there extends to the end or butt of the needle a longitudinal recess, a, This is also V-shaped in cross section, orl substantially V-Shaped, the broad part ofthe recess being toward the cen- 5'; ter of the needle, while the opening alis nar-KK` rower. The point as, where the recess and slot intersect, may be a right angle, but preferably is an acute angle, as represented in Figs. 8 and V9, so as to form a sharp or pointed surface or edge.

The recess a6 may be deepened somewhat toward the butt, as represented in Fig. 8, and it may have the rounded outer corner, a9, as The shank of the needle may also be somewhat flattened or drawn in uponV the surface am immediately aboutv the wide entrance to the slot, ifdesired. (See Fig. 9.)

In use one end of the fastening thread or cord B is inserted from the wide Side of the cross-Slot, passed through `it until the length of the thread or cord which it is designed to use has been drawn through, when it is pulled forcibly against the sharp edge aB and through the narrow opening a7 of the recess cinto the recess, so that the thread or cord takes the position in the eye represented in Figs. l and 5.

The cord or thread is then severed close to the slot of the needle, as represented in Fig. 5. The cord is by this means firmly and securely attached to the needle, the end being inclosed and locked in the crossslota3 and held nipped by ,conlining the section of the cord or thread extending from it in the side recess, a6, of the needle, so that once nipped it is -held so until released. The needle, however, can be easily removed from the thread by another needle or sharp-pointed instrument, removing the end 'of the thread from the point or shoulder as and Fig. 9, not only' is the shoulder a inadesharper, but a pocket or recess, a, is formed for receivinga portion of the end of the thread, and so that it shall not extend outward from the shank of the needle, and by flattening the shank about the entrance to said slot, or by drawing it in about the entrance Vto said slot, as above described, I am enabled to cut off the end of the thread, so that it shall not extend or project beyond the line of the greatest diameter of the needle, which is a very material advantage when the needle is used for drawing cord or thread through such a fabric as, for instance, leather, where there should be no projection of any kind extending beyond the surface of the needle.

By making the recess a tapering inward near the butt I am enabled to bring the thread or cord very nearly central in relation to the center of the needle, providing holding-space for the thread or cord within the recess, and obtain asomewhat rounded surface for it to bear against, instead of a sharp corner, and at the same time improve the draft of thethread upon the holding edge or shoulder as.

I prefer, in most instances, to make the sides of the slot a3 to converge or come togetherirnmediately at the point as, as shown in Figs. 2 and 3, as this provides a horizontal biting or nipping action upon the end of the cord, which is increased the greater the strain thereon. The longitudinal recess is made of any desired depth, and is largely dependent upon the size of the thread or cord used. Where a large thread or cord is used, it will be desirable to extend the recess about two-thirds across the shank. i

Having thus fully described my invention, I claim and desire to secure by Letters Patent of the United States-- 1. A needle having a point, a', and an eye formed by the cross-slot a3, wider on one side of the needle than on the other, and the recess a6, extending from the narrow section of said slot to the butt, substantially as described.

2. A needle having a point, a', and an eye formed by theslot a3, V-shaped orsubstantially V-shaped in cross-section, the recess a, opening therefrom, also V-shaped or substan tially V-shaped in cross-section, and the shoulder as, substantially as described.

3. In needles having the cross-slot a and recess a6, the shoulder or edge as, having the pocket a, extending downward below or beyond its pointed edge, as and for the purposes.

described.

4. In a needle having the cross-slot a3, the recess a, made deeper at or near its outer end, as and for the purposes described.

F. F. RAYMOND, 2d, FRED. B. DOLAN.

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