US1072084A - Needle-setting device. - Google Patents

Description

A. CARP.

NEEDLE SETTING DEVICE.

APPLICATION FILED JULY 25, 1912.

Patented Sept. 2, 1913.

M (4/0 can. Him/mugs W. K BEJ 1 ime f m E. B a A e I A 1 my X Q Q ITED STATES PATENT OFFMJE.

ARTHUR CARP, OF ST. LOUIS, MISSOURI, ASSIGNOR TO THE REECE BUTTON HOLE MACHINE COMPANY, 015 BOSTON, MASSACHUSETTS, A CORPORATION OF MAINE.

NEEDLE-SETTING DEVICE.

Specification of Letters Patent.

Patented Sept. 2, 1913.

To all whom it may concern Be it known that I, ARTHUR CARP, a subject of the Czar of Russia, residing at St. Louis, in the State of Missouri, have invented certain new and useful Improvements in Needle-Setting Devices, of which the following is a specification, reference being had therein to the accompanying drawmg.

My invention relates to needle setting devices for sewing machines, and is adaptable to sewing machines of any class or description.

The principal object hereof is to provide for the ready setting of the needle in proper position by the means hereinafter referred to, which may be originally adjusted or standardized, whereby in the subsequent insertion of needles they will invariably be brought to the predetermined position. This object is accomplished herein by providing at the operating end of the needle bar or carrier a part which is adjustable along the needle carrying bar and has means for holding it thereto in its adjusted or standardized position, together with a means independent thereof for detachably securing a needle in a given position with relation to said part.

I will first describe two forms of the device embodying the present invention, and

will thereafter point out the novel features in the claims.

In the accompanying drawings forming a part hereof, Figure 1 is a side elevation of one form of embodiment of the present invention, showing a portion of a needle bar of a convenient type with the improvement hereof located at the foot of said bar. Fig. 2 is a front elevation of the devices shown in Fig. 1. Fig. 3 is a central vertical crosssection of the devices shown in Figs. 1 and 2. Fig. t is a horizontal cross-section taken upon the broken line indicated in Fig. 3. Fig. 5 shows in perspective the particular parts involved in this embodiment of my invention detached from the needle bar or carrier. Fig. 6 shows in side elevation a portion of a sewing mechanism wherein a curved needle is employed and a needle carrier movable in an arc, with the present invention applied thereto. Fig. 7 is a transverse section taken upon the broken line indicated in Fig. 6. Fig, 8 shows detached and in perspective the needle stop of Figs. 6 and 7.

Similar letters of reference designate corresponding parts in the several figures of the drawings.

A is a convenient form of needle bar, at the lower portion B of which is the needle C of any convenient type.

According to this invention a special part is provided which is adjustable along the needle bar and has means for holding it in adjusted position. This adjustable part D, while it may take various physical forms, is shown as an internal part or plug. Referring to its further details, the part D is shown cylindrical in form and arranged lengthwise within the needle bar or the part B of said bar, so as to be longitudinally movable, and the needle bar is internally bored to receive the part D and permit its movement. The part D being adjustable along the needle bar, means for holding it in adjusted position are provided in the form of a holding screw E passing from the exterior of the bar into engagement with the plug. The threaded stem of the holding screw is shown engaged in threads formed in the wall of B so that the screw has a fixed position, while the plug D as shown is of sufficient length to permit considerable adjustment, the screw E clamping it in place in any adjustment.

Vithin the interior longitudinal bore of the needle bar is fitted the needle C substan tially in alinement with the plug D. Vhen the needle is set into position by being forced up through its bore to the position indicated in Fig. 3, it will contact with the plug D and thereupon the securing screw G will be tightened for securing the needle in a given relation to the plug, that is to say in abutment or contact with it. It is obvious that with such an arrangement the constructor or mechanic has merely to apply a standard needle to the device while the screw E is loosened and plug D is loose, then carefully adjust the needle in exact and proper relation to cooperate with the remainder of the sewing mechanism, then tighten the screw G to secure the needle in place, then cause or allow the plug D to do scend into intimate contact with the butt end of the needle, and finally securely and permanently tighten the holding screw E,

cessible, so that in adjusting the plug there will be no difiicult-y in forcing it down upon the top of the needle;

The lower part B- of the needle carrier.

inlay be detachable in a well-known manner from and attachable to the mam JOPtlOIl of the bar or carrier A.

I will now refer to the embodiment of my inventionillustrated in Figs. 6, 7 and 8. A curved needleand a carrier movable in an are are illustrated in the under sewing mechanism of the button hole stitching machine of the N. lV. Dixon Patent No. 695,089, to which reference may be made for description and details of structure not herein illustrated. In these figures the needle bar or carrier H, to which the. needle I is secured, may be fitted in any desired manner for movement in an arc, but for convenience is shown as constituting an are shaped slide movable within a curved groove, race or guide-way J. The lower side of the race may be under-cut as indicated by the dotted line K, and the lower side of the carrier H may be inclined to correspond to the under-cut as indicated by the dotted line L. As usual a throat M may be employed, through which the needle I passes as it reciprocates upwardly and downwardly.

As a convenient means to lock or hold the needle in place, a pair of attaching screws N, N are shown, these engaging partial threads formed in the opposite sides of the carrier H, the carrier having a curved. needle groove longitudinally arranged as shown.

The needle stop 0 hereof is shown secured to the carrier by an attaching means, namely the screw P, which has a fixed position with relation to the carrier. This screw may for convenience project from the rear as shown, through the carrier to where at the front it is provided with a removable nut 79.

As before stated, the needle stop 0 is held in place by the screw P, but it is arranged to be shiftable' relatively thereto when the nut 79 is loose. To this end the fiat portion of the needle stop 0 is formed 'with an elongated slot at 0 designed to be passed over the screw P, the extended length of the slot enabling relative shifting movement of the needle stop to a sufiicient extent.

Projecting inwardly as a part of the nee dle stop 0 is the finger Q constructed and arranged. to extend directly into the needle groove of the carrier H so as to constitute an effective stop for the butt end of the needle. Unlike the modification of Figs. 1 to 5 where the needle stop passes longitudinally into the path of the needle, the needlestopping finger Q of Figs, 6 to 8 is seen to extend laterally into the needle groove or path. Extending forwardly and preferably integral with the needle stop 0 is an extension R which forms a convenient means for shifting the needle stop when the screw P is loosened, and this extension may also be provided with a perforation at r serving as a thread guide for the thread which is to pass to needle I. I 1

It will be noticed that in both of the embodiments of the invention, the needle-stop has a fixed-position attaching means or screw, the needle stop being shiftable relatively thereto and held thereby when in proper position. a

It is obvious that many of the illustrated features herein may be varied within the scope of the present invention, and I therefore do not wish to be limited to any features or details except as set forth in the appended claims.

No claim is herein made broadly to the shown combination, with the needle carrier or bar, of a needle stop adjustable longitu- 'dinally of the needle and carrier, an exteriorly accessible locking device operative 100 after adjustment of such stop for locking the stop in adjustedposition, and a needle securing device for detachably securing a needle in the position determined by said stops adjustment. Nor to such combination when further restricted to the features that the needle stop is freely slidable longitudinally relatively to the needle carrier while in engagement therewith, and that the stop determines the needles position through. contact by the needle butt. j

l/Vhat I claim and desire to secure by Letters Patent is: j l

1. A sewing machine needle setting device comprising in combination with the needle carrier, a needle stop adjustable longitudinally of the needle and carrier, a fixedposition stop-securing device operative after adjustment of such stop for locking the stop in adjusted position, and a needle-securing device for detachably securing a needle in abutting contact with said stop,

2. A sewing machine needle setting device comprising in combination with the needle carrier, a needle stop adjustable longitudinally of the needle and carrier, a fixed-position screw-threaded stop-securing device arranged on the needle carrier and operative after adjustment of such stop forlocking the stop in adjusted position, and a needle- 13% securing device for detachably securing a needle in abutting contact with said stop.

3. A sewing machine needle setting device comprising in combination a carrier for a curved needle, movable in an arc and having a curved needle recess or groove, means for securing a needle in said recess, an adjustable part adapted to form a stop for said needle, and means to secure said stop, said stop consisting of a plate arranged longitudinally of the carrier and having an offset standing in the needles path.

4. A sewing machine needle setting device comprising in combination a carrier for a curved needle, movable in an arc and having a curved needle recess or groove, means for securing a needle in said recess, an adjustable part adapted to form a stop for said needle, and means to secure said stop, said stop consisting of a slotted plate arranged longitudinally of the carrier and having an offset standing in the needles path, and said stop securing means comprising a fixed-position screw'threaded device engaged in the slot of said plate.

5. A sewing machine needle setting device comprising in combination a carrier for a curved needle, movable in an arc and having a curved needle recess or groove, means for securing a needle in said recess, an ad justable stop projecting laterally into said recess, and means to secure said stop.

6. A sewing machine needle setting device comprising in combination a carrier for a curved needle, movable in an arc and hav ing a curved needle recess or groove, means for securing aneedle in said recess, a longitudinally slotted stop located in said recess, and a securingmember passing through said slot for securing said stop.

7. A sewing machine needle setting device con'iprising in combination a carrier for a curved needle, movable in an arc and having a curved needle recess or groove, means for securing a needle in said recess, a longitudinally slotted stop located in said recess, and a securing member passing through said slot for securing said stop, said stop having an outward extension by which it may be shifted.

8. A sewing machine needle setting device comprising in combination a carrier for a curved needle, movable in an arc and having a curved needle recess or groove, means for securing a needle in said recess, and a part constituting a combined thread guide and needle stop, constructed to extend partly into said recess.

9. A sewing machine needle setting device comprising in combination a carrier for a curved needle, movable in an arc and having a curved needle recess or groove, means for securing a needle in said recess, and a part constituting a combined thread guide and needle stop, constructed to extend partly into said recess, and means for adjustably securing said part to said carrier.

10. A sewing machine needle setting device comprising in combination with the needle carrier, a needle stop having a longitudinal slot and adjustable by reason of said slot longitudinally of the needle and carrier, an exteriorly accessible locking device operative after adjustment of such stop for locking the stop in adjusted position, and a needle securing device for detachably securing a needle in the position determined by said stops adjustment.

11. A sewing machine needle setting device comprising in combination with the needle carrier, a needle stop having a longitudinal slot and adjustable by reason of said slot longitudinally of the needle and carrier, an exteriorly accessible screw-tln'eaded locking device engaged in said slot, operative after adjustment of such stop for locking the stop in adjusted position, and a needle securing device for detachably securing a needle in the position determined by said stops adjustment.

12. A sewing machine needle setting device comprising in combination with the needle carrier, a needle stop adjustable longitudinally of the needle and carrier, and located exteriorly to the carrier, a locking device operative after the stops adjustment for locking the stop to the exterior of the carrier in adjusted position, and a needle securing device for detachably securing a needle in the position determined by said stops adjustment.

In testimony whereof I ailix my signature in presence of two witnesses.

ARTHUR CARP.

\Vitnesses GEO. E. GILL, JOHN C. l-Ircnon.

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

Washington, D. G.

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