US324030A

US324030A - Ernst kratz

Info

Publication number: US324030A
Authority: US
Publication date: 1885-08-11
Anticipated expiration: 1902-08-11

Description

(No Model.)

E. KRATZ.

I NEEDLE.

No. 324,030. Patented Aug; 11, 1885.

WITNESS IIVVE/VTOI? ATTUR/VEY N ravens Photo-Lithograph", wmm m. ac

NITED' STATES PATENT OFFICE.

ERNST KRATZ, OF MARBURG, GERMANY.

NEEDLE.

SPECIFICATION forming part of Letters Patent No. 324,030, dated August 11, 1885.

Application filed November 8, 1884. (N0 model.) Patented in Germany May 11, 1883, No. 25,424; in England March 20. 1884, No. 5,221; in Belgium March 31, 1884, No. 64,583, and in France June 27, 1884, No. 161,089.

To all whom it may concern.-

Be it known that I, ERNST KRATZ, a subject of the Emperor of Germany, and a resident of Marburg, in the Empire of Germany, have invented certain new and useful Improvements in Sewing -Needles, (for which I have obtained a patent in Germany, No. 25,424, bearing date May 11, 1883; in Belgium, No. 64,583, bearing date March 31, 1884; in England, a provisional protection hearing date March 20,1884; in France,a patent, No.161, 089, bearing date June 27, 1884,) of which the following is a specification.

My invention relates to improvements in sewing-needles, to the eye of which is led from the outside of the needle a slot for introducing the thread laterally with any part of its length, and has for its object to facilitate the opening of this introducing-slot.

Figures 1 and 2 of the accompanying drawings show the rear or heel end of the needle to which my invention is applied,and Fig. 3 a side elevation thereof.

In all needles a split, 1), is departing from the needle-eye c, which split is opposite or nearly opposite to the introducing-slot a, and forms the essential feature of my invention, for it facilitates in a high degree the opening of the slot (0 when the thread is pressed through the latter into the needle-eye. The needle shown in Fig. 1 represents hand sewing-needles, and Fig. 2 shows a needle for surgical purposes.

For facilitating the introduction of the strained thread into the slot a, a notch, d, may be arranged at the outer end of slot a, which latter may be either centralor lateral with regard to the needle-eye c. In all cases the ends of the needle-eye c are so shaped that under sewing neither the introducing-slot 11 nor the opening-split b can be opened by the tension of the thread.

As it offers great difficulties to produce the split 1) by the usual means which are employed for making slot a, I produce the split 1) in the manner shown.

Under the needle-eye c is bored a hole, 6, being separated from 0 only by. a narrow bridge, and, moreover, are both sides of the needle over the eye 0 and the hole 6 hollowed longitudinally, as shown atf, so that the narrow bridge resting between a and e becomes very thin in its midst, and the split 1) may therefore be very easily cut at this point.

I claim as my invention As an article of manufacture, the sewingneedle herein described, the same consisting of a needle having the slotted head a, eye 0, hole 6 below the same, and connected with the said eye by a slit, b, as set forth.

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

ERNST KRATZ.

\Vitncsses:

J. G-RUND, A. S. HOGUE.