|Publication number||US877476 A|
|Publication date||28 Jan 1908|
|Filing date||16 Apr 1904|
|Priority date||16 Apr 1904|
|Publication number||US 877476 A, US 877476A, US-A-877476, US877476 A, US877476A|
|Inventors||Robert B Bach|
|Original Assignee||Robert B Bach|
|Export Citation||BiBTeX, EndNote, RefMan|
|Referenced by (22), Classifications (1)|
|External Links: USPTO, USPTO Assignment, Espacenet|
PATENTED JAN. 28, 1908.
R. B. BAGH.
NEEDLE APPLICATION FILE-D APR.16,1904.
WI T/VE SSE S.
NI sr ROBERT B.- BACH, OF NEW YORK, N Y.
Specification of Letters Patent.
Patented. J in-'28, 1908.
Annliuation filed April 16.1904. Serial No. 203.412.
To all whom' it may concern:
Be it known that I, ROBERT B. BAcH, a
citizen of the United States, and a resident of the city of New York, (borough of Brooklyn,)
in the county of Kings and State of New York, have invented a new and Improved Needle, of which the following is a full, clear,
and exact description.
My invention .relates to an improvement in needles, which is capable of general use, but has particular advantages when applied to surgical needles. 1 1
In ordinary needles which are operated by hand, the thread passes through an eye and is doubled over at the butt of the needle to form two strands, which together with the needle have a thickness greater than that of the needle alone. disadvantage, as the thread or gut used is liable to tear the flesh when it is pulledv through the opening made by the needle.
K In all kinds of sewing also, this extra thickness tends to tear or distend the fabric or other material sewed, so as to spoil the appearance and lessen the strength of the seam or stitch.
It is the chief object of my invention to obviate these difficulties and to produce a needle which the thread will follow without any enlargement of the opening-made by the needle. With these and otherobjects in view, my invention consists of the arrangements and combinations hereinafter described and set forth in the appended claims.
Reference is to be had to 'the.accompany ing drawings forming a part of this specification, in which similar characters of reference indicate corresponding parts'in all .the figures.
Figure 1 is a longtitudinal sectional view of a needle on an enlarged seale,with a preferred form of my invention a plied thereto; Fig. 2 is a sectional view on t e line 2-2 of Fig. 1, on a further enlarged scale; Fig. 3 is an end view of the thread-holding attachment for the needle, also on an enlarged scale; Fig.- 4 is a sideview of the threadholding attachment"; Fig. 5 is a central sectional view ofthe thread-holding attachment, slightly modified and on the scale of.
Fig. 2; and Fig. 6 is an end view of the modification shown in Fig. 5.
In the particular embodiment of mdy 1nvention represented in Figs.- 1, 2, 3 an I 4, a is the needle proper, and it is provided with thread 0.
In surgery this is a great a longitudinal cavity a extending part way up from thebutt and adapted to'hold the end of a thread. At the rear end of this cavity is a tapered cavity a and beyond this a screw-threaded portion (1 The thread-holding element is'represented by the letter I), and it is provided with a central longitudinal passageb for the passage'ofa It also has a projection b which is screw-threaded upon itsv exterior surface to engage with the screw-threaded portion a? of the cavity in the butt of the needle proper. There is also a conical extension b 'upon the end. of this projection, which is.
adapted to fit in the conical portion of the. cavity .09, as shown in Fig. 1. This projection 1), 5 is provided with one or more slits I). These slits may extend the whole length of the parts 6- and b or any portion thereof, and while it is more convenient to form them by slitting diametrically across the parts in. two directions, it will be obvious that these slits may be made in any desired manner without departin from the spirit of -my invention. The part 3 is-soconstructed that when it is removed from the needleproper it will be slightly larger than the conical'cavity 0. The natural resiliency of the material will thus operate, when the portion 1) is screwed into the needle proper at a to cause the several lobes of the part b to be forced together and grip the thread 0 passing through the holeb. The end of the thread piirpose of permitting the thread to enter it and'so leave 'the extreme rear end of the needle free from the thread so as to permit a thimble or equivalent device to be pressed against the butt of the needle without having any tendency to cut or injure the thread. In the ordinary construction of needles, it is provided in the butt of the element 1) for the difiicult to apply a thimble to a needlein order to push it throucgh aheavy fabric, without incurring the anger of cutting the thread thereby; Elther one of these modifications shown in Fig. 5 may be employed without the other, and both are intended to.
be' used in the construction shown the other fi ures if desired.
It wi 1 be seen that m invention is ca a"- I ble of application to al kinds of -need es,
whether straight or curved, cylindrical or flat, or whatever the shape, and to needles to, be used for any purpose Whatever. The advantages will be'obvious. in two strands of thread passing along the si es of the needle and enlarging the openin formed by the needle, a single thread wil pass from the center of the butt of the needle,
and will be smaller than the needle itself, so
that-a clean opening will be made and there will be no tendency to tear the fabric, flesh, or other material upon which the needle is employed. The thread will be securely gripped by the needle, and the needle can be pushed through heavy materials without danger of i juring the thread. 7
When using cotton, linen, or silk thread, it can be more securely held in the needle by passing its end outwardly from the hole a so as to project between the end of the part b and the end of the cavity (1. By this arrangement the finest threads may be secured in the needle.
-While I have referred especially to surgical needles, it is'to be understood that my invention' possessespeculiar advantages when applied to sail-making needles, embroidery needles, and various other kinds, and I do not wishto be limited to any particular type Instead of h avtwo subscribing witnesses.
of needle. It will also be obvious that the drawings illustrate certain structures, in
. which my invention may be embodied, and
and a thread holding member havinwa longitudial bore and a reduced and threaded portion, the threaded portion being slitted and terminating in the plain conical portion.
2. A needle comprising a body portion having a longitudinal cavity in its butt end,
the outer portion of the cavity being screwthreaded and having a plain conical portion below the threaded portion, and a thread holding member having a longitudinal bore and a threaded and resilient inner'end ter minating in a conical portion.
a In testimony whereof I have signed my name to this specification in the presence of A ROBERT BAcH. Witnesses:
JNo. M. BITTER, F. W. HANAF RD. I
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