US252992A

US252992A - Sewing-machine needle

Info

Publication number: US252992A
Authority: US
Publication date: 1882-01-31
Anticipated expiration: 1899-01-31

Description

(No Model.)

H. A. BLANCHARD.

SBWING MACHINE NBEDLE.

No. 252,992. Patented Jan. 31,1882.

FIG.1.

WMNESSES: mmwa afi UNETE 7 TATES rrrcea ATENT SEWlNG-MACHINE NEEDLE.

SPECIFICATION forming part of Letters Patent No. 252,992, datecl January 31, 1882.

(No model.)

T0 all whom it muy concern Be it known that I, HELEN A. BLANOIIARD, of the city of Philadelphia, county of Philadelphia, and State of Pcnnsylvania,have invented certain new and useful Improvements in Sewing-Machine Needles, of which the following is a specification.

The object of my invention is to provide a hollow needle which will contain a considerable quantity of thread, and also to provide for filling such a needle with thread in a package.

In the accompanyingdrawings, which illustrate my invention, Figure 1 is a view of a straight hollow slotted needle pointed atboth ends. Fig. 2 is a side elevation of my curved needle complete. Fig. 3 is a front elevation of the same. Fig. 4 represents a needle exactly like that shown in Fig. 1, except that it is slightly bent like a bow. Fi 5 shows a bobbin composed ofa small flexible wire wound with thread to be inserted into my needle. Fig. 6 is an enlarged section of 1ny needle filled with thread, showing an extra slot, B, in dotted lines, which may be provided, if desired. Eig. 7 is a side elevation, partly in section, showing the needle with the thread-bobbin inserted. Fig. 8 is a similarview with the flexible wire drawn out and the needle left filled with a package of thread ready for use. r' A indicates the tubular part of the needle, which may be formed of small coiled brass or other metallic tubes, and provided with a slot, -B, the purpose of which is to enable the thread to be packedinto the needle by the use of a pin, bodkin, or any other small instrument. The front end of the needle is provided with a steel point, O, and the rear end with a screw-plug, D, or any suitable cap, stop, or abutment having an eye or thread hole, d. The thread for filling this hollow needle may be prepared in suitable oops, bobbins, or packages by windng it on small flexible wire, as illustrated in Fig. 5, with the end E loose, so that it can be drawn off, in a manner somewhat like unraveling knit work, by a slight pull. The screw-plng D being removed, this thread package can readily be inserted into the hollow needle and pressed in until it ing, to wind yarn or thread upon a wire or piece of metal. This has been done to form bobbins, the central metal portion to act as an axis in the unwindingofthe bobbins, and therefore being straight and rigid, and thus totally different from my flexible bobbin for filling a hollowneedle, and incapable of serving its purpose, both on account of the necessary size and the rigidity of the central metallic core.

I am also aware that wires have been in sulated for electrical purposes by being covered with a woven, wound, or knit coating composed of yarns or threads, and that wires have also been wound with threads to form hat and bonnet wires; but in such cases itis not contemplated that the wire shall be pulled out, nor can it be; and hence neither a bonnet-wire nor an electrical wire, even if cut up 1n short sections, would serve the purpose of my peculiar bobbin, which is so wound upon slight flexible wire as to permit the wire to,be readily drawn out of the needle, leaving it packed with the thread only. Nor is an electrical wire or a bonnet or hat wire ever wound with sewing-thread. I therefore disclaim the rigid straight rotary bobbins referred to, and all covered wires for electrical purposes and hat and bonnet wires.

What I claim as new, and desire to secure by Letters Patent, is-

l. The combination of the coiled slotted tube A with the point at the front end and screw plug or cap at the rearend,substantially as described.

2. A bobbin for filling a hollow needle, consisting of a small flexible wire wound with thread, substantially as and for the purpose described.

3. The needle pointed at one end, and provided with an eye for the delivery of the thread from the coil of thread within it, and

with an abutment to retain the c0i1 in p0si bin in the h0llow needle, and then withdmw tion within the needle, substantially as de ing the flexiblecore, leaving the c0l of thread scribed. therein, substantially as described.

4. That improvement in the method of fill- HELEN A. BLANCHARD.

ing a h01l0w needle with a c0il of thread which Witnesses: consists in winding the thread on a flexible CHARLES F. LIBBY, core to form a hobhn, inserting the said h0b- HARRY R. VIRGIN.