US2033755A

US2033755A - Needle-threader

Info

Publication number: US2033755A
Application number: US712123A
Authority: US
Inventors: Daniel H Chason
Original assignee: Singer Co
Current assignee: Singer Co
Priority date: 1934-02-20
Filing date: 1934-02-20
Publication date: 1936-03-10
Anticipated expiration: 1953-03-10

Description

arch lDl H. CHASON NEEDLE THREADER Filed Feb. 20, 1934 2 Sheets-Sheet 1 Patented Mar.` 10, 1936 PATET OFFICE NEEDLEeTHREADER Daniel". Qhason, Elizabeth, N. J., assigner to The Singer Man ufacturing Company, Eliza.-

beth, N. J., a corporation of New Jersey apportati@ February 2.0., 1934, serial No. 712,123 7; claims. (cl. 223-99) This invention relates tofneedlefthreaders andY y has for an Object to provideI a .device off this Character which meyzbefused; Withzequal facilityy to thread needles of various sizes,vandpart;icu

; larly sewing machins` needles, from lefttg right or from right to` left.

Another object of theinyentionis toV provideaV needle-threader whichY may be; freely-;usedL with. a reduced element of @angoli ,0i hreakagefofdelia 10.u `cate parts.

`" A, further object. oi' the invention-r iste. Dro-- vide for the ready removal. and replacement of.

the threading implementor hook of the device..

With the above and other; obiects in; view, as

m.: will hereinafter appear,` the invention comprises the devices, combinations a nd arrangements. of parts hereinafter set forth andV illustrated inthe accompanying drawings.y of a preferred. embodiment of the invention, from; which the several.

swung. relatively` to one another to expose; t-heY needle-threader. Figs. 4, 5 and 6 are respectively, sections on the lines 4 4, 5-5 and, li-6,..

Fig. 1. Fig. 7 is a. section on theline.l'--.1'.Fig.,2. 35,. Fig. 8 is a top edge View of the-device. Fig. 9. is

a bottom edge view. Fig. 10 is anl enlarged top,l edge View of. the needle-.threader wit-. hthev guard.

element embracing a, needle to `be. threaded,l

Fig. 11 is av perspective view off. the' needle,n 4othreader blade and itsholder. Fig. 12 is a pep.

spective View of the.needlethreadereguarda. Fig..

13 is a perspective .View of the seam-ripper bladeholder.

45,. screw. Fig. 15'is.y an, enlarged side elevation of the needle-threader showing the first step of approach to a needle to be threaded. Fig. 16 is a similar view showing the second step of approach, and Fig. 17 is a similar .view showing the third step of approach preparatory to the final step of actually threading the needle.

According to the invention, in the preferred embodiment thereof illustrated, there is provided a sheet-metal handle I formed by folding a blank along its longitudinal median line at 2 to Fig. 14 is a. disassembled perspective,- view of the seam-ripper blade.;andv its attaching provide spaced parallel and similarly shaped, front and back sections deiining therebetween 'a cavity 3, a portion 3 of which is enlarged-width wise, as shown in Fig. 9.

Pivotally mounted at oneend of the handle; I on` the pivot-pin 4, is the knife-bladev holder 5, upon which the thin steel knife-blade 6 is. mounted by means of a single screw I and: apair:V of steady pins 8. The knife-blade of this seamripper is interchangeable with the knife-blade ofthe device disclosed in my copending application, Serial No. 650,073, filed Jan. 4, 1933. The knife-blade 6 and its holder 5 are swingable into. and out of the cavity 3 in the handle, as indicated in Fig. 2.

Pivotally mounted on a common pivot-pin 9 at, the other end of the handle I are the holder ele,-l ment Ill and guard element ll for the needle, threader implement or hook |12. The guard element II is formed from a resilient sheet-metal.` 20,

blank having similar front and back sections, I Iii,y "t

IIb, integrally connected by a relatively narrowy folded tongue I3 at the juxtaposed upper edges of the guard sections. The holder element. IIlis.` disposed between the front and back sectionsolv 25.,r` the guard I I.

The holder element I0 is provided with-a lip I4 which is folded back upon the body of the holder.: and is slotted at the fold line, at. I5, for passage;4

of the shank of the threader I2 disposed bef-- 30,.

tween the lip I4 and the body ofthe holder I0: and removably secured to the latter by the screw. I6. The lip I4 and the top and bottom walls of.Y the slot I5 engage and steady the shank of the hook I2 and assist in holding it in accurately fixed 3 relation to its holder I0 and the guard II. The holder I0 is also formed with a finger I1 which extends below and beyond the free end ofthe hook I2 and constitutes a needle stop and gauge Y useful in the approach and presentation of the 40,.

hook to a needle to be threaded. The front and back sections I Ia and Ilb of the guard are bowed outwardly. at I8. to give increased resiliency to. the needle-engaging end-fingers I9 of the guard andto provide clearance for the screw. I5.

The threader hook I2 is in the form of a thin steel blade which is of a size such that it will readily enter the eye 22 of a conventional sewing machine or other needle 23. It is formed in one edge with a relatively narrow and inclined slot 24 affording a hook 25, Fig. 15, the point of which cannot catch on the wall of the needle-eye when the threader blade I2 is Withdrawn from the latter.

The preferred method of using the threader for threading a sewing machine needle is illustrated in Figs. 15, 16 and 17. The threader is first presented to the needle shank, well above the needleeye, with the guard lingers I9 embracing the needle and the stop linger il in engagement with the needle well above the point of the latter. The stop II takes the shock of the initial engagement of the threader with the needle and protects the delicate hook blade I2 against being damaged by striking the needle. The device is then shifted downwardly until the stop Il clears the needle point and then to the left, Fig. 16, until the threader blade I2 is felt to engage the needlegroove immediately above the needle-eye 22. A

4slight downward shift of the device brings the blade I2 into register with the needle-eye through which the hook blade is projected to the position shown in Fig. 17.

Referring particularly to Fig. 17, it will be seen vthat the sections IIa and IIla of the guard I I, including the guard-ingers Iii, overlap the shank and free end of the threader blade I2 and are provided with lower concavely curved edge-portions I9 exposing the thread-slot 24 and hook 25 for engagement of the thread 2S. The thread-end 26 is brought around under the guard-fingers I9 and hook-blade I2 and is then pulled to the left to draw the thread into the slot 24 of the hook 25 exposed by the concave edges I9 of the guardsections. The blade I2 is finally withdrawn from the needle-eye, carrying the thread-end 25 with it. Because of the equal resilience of the guardfingers I9, the threader-blade I2 is automatically centered relative to the needle, regardless of the `.thickness of the needle. 'This will be clear from an inspection of Fig. 10.

Both the threader-holder and guard elements Y IIJ, I I, as well as the holder 5 for the seam-ripper blade 6, are formed with the usual cam-Shanks 2I for cooperation with the free ends of the spring 28 having a central positioning hump 29 which projects through the central opening 30 in the edge-fold 2 of the handle. By these means, the threader and seam-ripper blades are yieldingly held in either open or closed positions. When in their closed positions, however, the blades do not overlap within the handle-cavity'S and danger of damage of delicate parts by collision is thus avoided.

The invention is not to be understood as limited to the details of construction and relative arrangements of parts shown and described, as the drawings and detailed description thereof are merely illustrative of one embodiment of the invention. Having thus set forth the nature of the invention, what I claim herein is:-

l. A needle-threader comprising a holder having a lip which is folded back upon the body of the holder and is provided with a slot, and a needle-threading implement mounted on said holder and extending under said lip and through said slot.

2. A needle-threader comprising a holder having a lip which is folded back upon the body of the holder and is provided with a slot, and a needle-threading implement mounted on said holder and extending under said lip and through said slot, said holder having a needle stop extending below and beyond the free end of said implement.

3. A needle-threader comprising a sheet-metal holder having a lip folded back upon the body of the holder and having an opening at the fold line of the lip, and a threading implement adapted to enter the eye of a sewing needle, said implement having a shank conned between said lip and the body of the holder and a free end projecting through said opening.

4. A needle-threader comprising a sheet-metal holder having a lip folded back upon the body of the holder and having an opening at the fold line of the lip, a threading implement adapted to enter the eye of a sewing needle, said implement having a shank confined between said lip and the body of the holder and a free end projecting through said opening, and a needle-stop on said holder disposed below and extending beyond the free end of said implement.

5. Aneedle-threader comprising a sheet-metal guard element'having resilient front and back half -sections integrally connected along a portion of their juxtaposed upper edges, a sheet-metal holder element intermediate the half-sections of said guard element, a needle threading implement mounted on f said holder element, and a handle to which at least one of said elements is pivotally connected for movement relative to the other element.

6. A needle-threader comprising a handle having a cavity, a needle-threading hook member adapted to enter the eye of a conventional sewing machine needle, and a guard member at least partially covering said hook-member, said members being Vcoaxially pivoted to said handle for swinging movement into and out of said cavity and relatively to one another to expose the hook member.

7. A needle-threader comprising a handle having a cavity, a needle-threading hook member adapted to enter the eye of a conventional sewing machine needle, a guard member at least partially covering said hook member, said members being coaxially pivoted to said handle for swinging movement into and out of said cavity and relatively to one another to expose the hook member, and means for yieldingly holding said members in predetermined cooperative needle-threading relation to one another.

DANIEL H. CHASON.