US474842A - Cybcts bussey - Google Patents

Description

(No Model.) I 3Sheets-Sheet 1. A. LEGG 8: G. W. WESTON.

SEWING MACHINE. No. 474,842. Patented May 17, 1892.

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BY H ,1, ATTOfi/VEVJ' (No Model.) I 3Sheets-Sheet 2.

' A. LEGG & G.W. WESTON.

, SEWING MACHINE. No. 474,842.'

Patented May 17, 189 2.

New STATES PATENT 'Orrice.

ALBERT LEGG, OF MILTON, AND CHARLES \V. WVESTON, OF NE\V YORK, N. Y.

SEWING-MACTDHINE.

SPECIFICATION forming part Of Letters Patent No. 474,842, dated May 17, 1892. Application filed October 15, 1891. Serial No. 408,816- (No model- To all whom, it may concern.-

Be it known that we, ALBERT LEGG, residing at Milton, in the county of Ulster, and CHARLES W. WESTON, residing at New York, in the county of New York, State of New York, have invented certain new and useful Improvements in Sewing-Machines, of which the following is a specification, reference being had therein to the accompanying drawings.

Our invention relates to an attachment for sewing-machines to be used when a needle having a recess for engaging the thread is used-such, for instance, as the needle de scribed in our application, Serial No. 408,815, for Letters Patent for needles filed simultaneously herewith.

The object of our invention is to provide a mechanism for threading the needleupon its downward stroke at the beginning of each stitch, which shall be economical, simple, and easily attachable to the various styles of sewing-machines, and we attain this object by the device illustrated in the accompanying drawings, in which similar letters of reference refer to similar parts throughout the various views.

Figure 1 is a front view of a portion of machine, showing one form of our device attached thereto. Fig. 2 is a rear View of the same. Fig. 3 is a side view looking in the direction of feed of the machine. Figs. 4 and 5 are cross-sections looking down on 5 5 and 6 6, respectively, of Fig. 1. Fig. 6 is an enlarged view showing the parts just after the recess of the needle has engaged the thread. Figs. 7, 8, and 9 show another form of device, Fig. 7 being a front view thereof, Fig.8 a side view looking in direction of feed of the machine, and Fig. 9 a sectional view on the line 10 10 of Fig. 8.

A is the"presser-bar, B the needle-bar, E the cloth-plate, and O the presser-foot, of one of the ordinary styles of sewing-machines. The needle-barB carries a needle N, having an open eye or recess 91 facing the presser-bar. Hereinafter we will refer to the side of the needle having this recess 91 as the front thereof. The band a is secured to the presser-bar A below the face-plate D by a screwb and carries lugs c, in which the guide-arm cl and fin ger-arm e are journaled angularly with reference to 'thellower ends of said arms.

each other and the path of the needle, as shown more clearly in Figs. 3 and 8. Said arms 6 and d are bent or cam-shaped and slide along pins or lugs f on needle-bar B as it reciprocates. The axes and cam shape of said arms determine the motions or the guide g and finger 71, borne, respectively, on Springsff (see Figs. 7, 8, and 9) work in opposition to the lugs or pinsf. It is preferable that pins ff should operate on opposite sides of arms d and e, respectively. Another form of operatingjsaid arms is shown in Figs. 1 to 6, inclusive, in which said arms a d slide, each between two lugs or pinsfon needle-bar B as it reciprocates. Guide g is an ordinary guideeye-suoh, for instance, as the spiral or pigtail shown in Figs. 7 and S-through which the thread is fed to the needle; but agood construction is also shown in Fig. 3, consisting of a slot i, and springj, fastened on one side of said slot 6 and projecting across it, so that the thread maybe slipped in readily and retained. Finger h is substantially hookshaped.

The operation of our attachment is as follows, to wit: Needle-bar B is at its upper limit of stroke. Cam-shaped arms 61 and e, respectively, hold guide 9 and fingers h in front of the path of the needle, or on that side of the needle in which is the recess '77.. Arm e is a little longer than arm cl, so that finger h is below guide 9 and the hook thereof behind the thread passing down through said guide. This position of the parts is shown in Figs. 1 to 5, inclusive, and in Figs. 7 to 10, inelusive. As needle-bar B descends, pins or lugs f and springs f and f operating in opposition to each other upon cam-shaped arms 01 and 6, swing them upon their axes on presserbar A forward toward and one to either side of the path of the needle. As finger his thus advanced it catches thread is below guide g, and said thread as both guide g and finger h are advanced to opposite sides of the needlepath is carried forward and distended partially around the descending needle, so as to be engaged by the recess 12. thereof, as shown in Fig. 6. Of course it is understood that when the form of our device shown in Figs. 1 to 6, inclusive, is used, said pins orlugs f operate said arms both ways without the assist- .gaged the thread.

ance of any springs. As needle-bar .B .descends finger h returns to its former position and guide g remains in its advanced position to feed the thread to the long groove of the needle until the needle has risen sufficiently to render this necessary, when this also returns to its former position. This operation is repeated with each stitch. Of course We do not limit ourselves to the particular motions described of said guide and finger. They may be varied considerab1y-for instance, the arm (Z may be adapted to return the guide g to its normal position as soon as the needle has en- In this case the long groove of the needle may be turned around to the front thereof, as shownin our said appli cation filed simultaneously herewith. This motion of the guide is illustrated in Figs. 7 and 8; but the long groove is shown straight, as whether'or not" it should be turned de-i pends upon the nature of the complemental stitch-forming; mechanism below the clothplate;

VVhat-we claim, and desire to secure by Let ters Patent,.is

1. In a sewing-machine, the combinationof a needle v-having arecessor open eyefor .engagingv the thread, with means for operating said needle, means forfeeding thread to the, same, which consists of a guide and finger movable simultaneously-in straight divergent lines from in front of the path ofsaid needle towardwand to opposite sides of said path, whereby the thread "is carried and-distended partially around the needle as it descends, means for operatingsaid guide and finger, and with complemen tal-stitch-forming mechanism below the' cloth -plate, substantially. as de-. scribed.

2. In a sewing-machine, the combinationof a needle having-arecessor open eye for ensaid needle, means for feeding thread to the same, which consists of a guide and finger movable simultaneously in straight divergent lines from in front of the path of said needle toward and to opposite sides of said path, said guide being adapted to remain in its advanced position during a part of the time of each stitch, whereby the thread is carried and distended partially around the needle as it descends and is fed to the long groove thereof, means for operating said guide and finger, and With complemental stitch-forming mechanism below the cloth plate, substantially as described.-

3. In a sewing-machine having a needle with a recess or open eye for engaging the thread, the. device for operating the threadfeeding mechanism of said needle, which con.

sists of the combination of lugs onthe press er-bar, cam-shaped arms jOllInRlGddlI said substantially as described.

4. In a sewing-machine having a needle lugs, and means for swinging said arms'on their axes as :said needle-bar reclprocates, w

thread, the device forxoperating the threadfeedingmechanismof said needle, which consists of the combination of lugs on the presser-bar, cam-shaped arms'journaled in said lugs, pins on the needle-bar adapted-to swing said pins, substantially as described; a

In testimonywzhereof weaffixour signatures, i 1 in presence of twowitnesses, this 14th day of October, 1891.

- ALBERT 'LEGG.-

w-Vlii'itnesses: WM. 13.:WHITNEY,

H. V. N. PHILIP.

CHAS. XV. W-ESTONL' It is hereby certified that in Letters Patent N 0. 474,842, granted May 17, 1892 the application of Albert Legg, of Milton, and Charles W. Weston, of New Yo Y., for an improvement in Sewing-Machines, an error appears in the printed fication requiring the following correction, viz.: In line 6, page 2, the Word neces should read unnecessary,- and that the said Letters Patent should be read wit correction therein that the same rnay conform to the record of the case in the I Office.

Signed, countersigned, and sealed this 7th day of June, A. D. 1892.

[SEAL.] CYRUS BUSSEY,

Assistant Secretary of the Inter-1 Gountersigned:

W. E. SIMONDs,

' Commissioner of Patents.

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