US1072601A - Threader for sewing-machines. - Google Patents

Description

J. H. GIRAB-D.

THREADEB FOR SEWING MACHINES.

APPLIOATION rum) APR. 24, 1913.

p te ted Sept. 9, 1913.

DVVENTOR.

A TTORNE).

easily threaded.

. tion of part of a sewin machine head and represents the prjesser foot.

was It. amass, or LOWELL, finss'iionusnr'rs.

Specification of ietters listen t. Application filed-April24,1913. 'Ser'ia1No.'i6,337;

) renames" FUR marinemmature.

Patented Sept. 9, 1913.

T0 allwhom z'tmay' concern: V v

'Be it known-that 1-, JOHN H. ,GIRARD, a citizenof Canada, residing at Lowell, in the county of Middlesex a'nd'State-of Massachusetts, have invented certain new and useful Improvements in Threaders'for Sewing-Machines, of which the following is a specification. 1 J My invention relates to needle th'readers for sewing machines. It is a device by which a sewing machine needle may 'be In the drawings, Figure 1 is a side eleva- Fig. 2 is a front elevation thereof. p

A represents the. head of a sewing machine, B represents the presser bar and 'M C is the reciprocatlng needle carrier and D is the needle; The needle D has the usual eye near the point thereof.

On the side of head A near the bottom thereof, I attach an adjustable carrier late F by means of attaching screws 20 an 21. These screws pass respectively through slots 22 andj23 in plate F which are cut on their outersides incurves the center of each of which is inthe center of the opposite-slot. Thereby they permit asort of limited rotary action of plate F. Screws 20 and 21 enter suitable holes tapped in head A- and threaded to receive them. Screw 20 should belong enough to permit spring 11 to be bentaround it as shown. Plate F also carries a stud 24 and a pin 13 for a purpose to be described. y

To the bottom portion of plate F by means of a rivet 30,1 pivot a swinging arm Gof such shape that when it is swung down,.its bottom end 31 will adjoin the eye of needle D. At this end. and at a point where its center will be in a position almost touching needle D and opposite theeyetherein, is a tgmnel -or conlcal thread guide H throng which the thread K can be pushed. 'When guide His in the proper position, as the thread K' leaves small end, it will pass through the eye of the needle D.- This conical thread guide H has a longitudinal slot; 10 socut that, when the swinging arm G is down and the conical thread guide adjoins the needle eye, it extends vertically in the direction of the length of the needle. At the other endiofarmG is a tail 12 so shaped that it will'stgikeand be stopped by pin 13 on plate F when the armG is-swu'ng slot 10 clear of the thread guide.

down so that conical guide His in threading position with reference to the needleeyer' A-b'ent spring 11 isho'oked around stud I p '24 and passes around attaching? scr w 20 thencbaokWatddhtb engagementiwit tail 12 which is so shaped that when the. arm

G is swung to its lower position, spring 11 together.- with. pin 13 will ime to hold it in place. en arm Gr is swung fi y up a ter the needleis threaded, tail 12-passes the dead center and spring 11 so bears on it as to keep 'the'arm in position. After the needle isthreaded and it is desired to raise arm G out of the way, it is lifted against the pressure of ,spring 11-to the po-' sition shown-by the dotted lines in Fig. 1

is desired to again thread the needle.

where it will not, interfere with the work. It remains in the upper position until it The advantages" of-my device are the fact that'it can bereadily attaphed to a sewing machine head of any make by merely tapping and threading two holes in head A for screws 20 and 21, and it can be readily slot 10 in such a position that in the threading position, it is .vertical and parallel with the needle eye, if the-thread does not go adjusted in position through the medium of slots 22 and 232 It can befixed in position y by tightening screws 20 and 21.- 'By making thread is being taken up, itslipsup throu h My e-- vice is sim la and compact and lies close against the v ttom and side of the head A, when not in use for threading so that it does-not interfere with the work.

In threading, it is best to-raise the needle bar B to its highest hint and to have the arm G so adjustedt at at such point the the eye 0 needle D thus. serving as a sort of; ivot The arm- G in relation to plate F'ls swung to the threadlngxposition where the-tail 12 strikes'pin l3 and then".

the. wholefdevice. is swung upward on the small needle pivot abreast of the head.-. It

is now veryeasy to mark on the head the center. ofpthe holes for screws 20 and 2-1.

,The'sefholes are tapped and threaded and "the device put in place after which 'any' slight adjustmentscan be made by loosen mg the screws 20 and 21 and shifting plate F which is germitted a. limited movemenkhy;

slots 2253.11 23; "-"T Wh'atQI claim.- as myinvention and desire 'j to cover by LettersPatent, is:

In a needle threader for sewing machines, the combination with/a needle, 21

needle carrier, anda head, of a carrier plate and has at one end a tail adapted to strike the pin thereon, and a conical thread guide carried at the other end of the swinging arm operative relation with the needle eye and having a longitudinal slot which is vertical ":when the guide is in the threading position, 20

.together with a spring hooked around the stud and bent around one ofthe adjusting screwswhich support the carrier plate and in engagement with the tail, as described.

In testimony whereof I heretoaflix signature in presence of two witnesses.

JOHN H; .GIRARD.

, Witnesses,"

' -"-.LUDGER A.f.NIo0L,

GARDNER W; Inanson.

flopies of this patent may he obtained for five cents each, by addressing the Commissioner of Patents.

Washlngton;1l y.-U.f.

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