US571818A - wellcox - Google Patents

Description

Patented Nov, 24, 1896.

( 0 Model.)

0 H W11 LGOX V NEEDLE THEEADER FOR SEWING MACHINES.

UNITED STATES PATENT FFTCE.

CHARLES H. lVILLCOX, OF NElV YORK, N; Y., ASSIGNOR TO THE \VILLCOX d; GIBBS SEWINGMACHINE COMPANY, OF SAME PLACE.

NEEDLE-THREiADER FOR SEWlNG-MACHlNES.

SPECIFICATION forming part of Letters Patent No. 571,818, dated November 24, 1896.

Application filed August 10,1895. Serial No. 5 58,858. (No model.)

aZZ whom it may concern: venient for threading. The construction of Be it known that 1, CHARLES I l. \VIL'LCOX, this threader adds only a triflin g amount to of New York, N. Y., have invented a new and the cost of making the thread-shield, and it useful Improvement in Needle-Threaders for is always in position at the time its service is 5 5 Sewing-Machines, which improvements are required.

fully set forth in the following specification. In the accompanying drawings, forming This invention has reference to means for part of this specification, Figure 1 is a View, facilitating the insertion of the thread into partly in front elevation and partlyin section, and through the eye of a sewing-machine showing the needle, the thread-shield, and the 1o needle, such devices being commonly known driving mechanism for the latter. Fig. 2 is a as necdle-threaders. side elevation, on an enlarged scale, showing I'leretofore a needle-threader has been dethe relative positions of the needle and vised which consists of an arm hinged to the threader when the former is in its elevated presser-bar or presser-foot in such relation position. Fig. 3 is adetail in front elevation 15 to the needle that it can be turned on its on an enlarged scale. Figs l and 5 are dehinge when it is desired to thread the needle, tails in side and front elevation, illustrating a bringing a thread notch or guide into line modification. with the needle-eye, whereby the thread is The threadsl1ield q, as shown, is carried guided through the latter. by a short shaft q, having a bearing in the 2o Inasmuch as the use of the threader is only head 1 of a sewing-machine and oscillated required occasionally and at long intervals from an eccentric on the main shaft through its presence on the machine at other times'is an arm 7 8, attached to said shaft and having of no benefit. Moreover, a threader of the at its upper end a yoke embracing said ectype referred to must be moved by hand into centric; but the thread-shield may be supposition for use in threading the needle and ported and operated in any suitable way, as, afterward moved back to its normal position. for example, by the means described in the The present invention is an improvement patent above referred to. upon the device above referred to in that it The needle-bar 1 carrying a needle f ,1nay requires no separate part to be made and atbe'vibrated by any mechanism such as usually o tached to the machine, and does not require employed. In the customary operation of to be moved by hand into operative position these parts the thread-shield moves toward when the needle is to be threaded. the needle, placing its end under the point The present invention is applicable to sewthereof as the latter rises and withdrawing ing-machines havinga thread-shield (or neeit when the needle descends, thus preventing die-finger, as it is sometimes called) which the thread from impaling itself on the point vibrates across the path of the needle,placof the needle. ing itself under the point thereof as the lat- The threader is formed by a small lug or tcr rises and withdrawing itself as the neeprojection g on the side of the thread-shield, i die descends. A device of this character is provided with a square notch g the angle 0 4o describedin Letters Patent No. 334,589,dated formed by the meeting of the horizontal and December 21, 1886, granted to the Willcox & vertical sides of this notch constituting the i Gibbs Sewing Machine Company as assignee thread-guide. The position of this guide of C. II. lVillcox and J E. A. Gibbs. Acrelatively to the needle is such that when the cording to the present invention the needleneedle is in its highest position (indicated in 9 5 i 5 threader is a part of this vibrating finger, bethe drawings) the motion of the thread-shield ing formed by a small lug projecting from the will have brought said guide into line with side of the finger and provided with a thread the axis of the needle-eye. In this position notch or guide which, as the finger vibrates, the thread being laid in the notch the latter comes into line with the axis of the needleguides its end through the needle-eye. 10; 5o eye at the time when the needle is in its high- The threadguide may be formed in various est position, which is the position most conways. As shown in Figs. 4 and 5, it consists of a conical guide (1 set into or attached to thread-shield q in proper relation to the eye of the needle. A cut orthread-exit g is provided, so that the thread can slip out of the conical guide after the needle is threaded.

Having now particularly described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a sewing-machine, the combination with the needle, of a vibrating finger in prox-' imity thereto and provided with a needlethreader and actuating mechanism for vibrating' said finger,substantial1y as described.

2. In a sewing-machine, the combination with the needle and its driving mechanism, of a Vibratory finger provided With a thread guide or notch which is in line with the axis of the needle-eye when the needle is at or 1ng Witnesses.

CHAS. II. XVILLOOX.

Vitnesses J. PARMLY, S. BORTON.

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