US1245297A - Sewing-machine. - Google Patents

Description

F. E. WILSON.

SEWING MACHINE. APPLICATION FILED M026. 1913.

1 ,245,297. Patented Nov. 6, 1917.

2 SHEETS-SHEET 1- 4 52M, A Zwj F. E. WILSON.

SEWING MACHINE.

APPLICATION FILED DEC.26. I913.

1,245,297. I Patented Nov. 6,1917.

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. UNITED STATES PATENT onnron.

FRANK E. WILSON, OF CLEVELAND, OHIO, ASSIGNOR TO THE WILSON DRESS-HOOK COMPANY, OF CLEVELAND, OHIO, A CORPORATION OF OHIO.

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Specification of Letters Patent.

' Patented Nov. 6, 1917.

Application filed December 26, 1913. Serial No. 808,764.

To all whom it may concern Be it known that I, F RANK E. WILsoN, a citizen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Sewing-Machines, of which the following is a speci fication.

This invention relates generally to sewing machines, and particularly to that class of such devices utilized in sewing articles, such as fasteners, to cloth or other material.

More specifically the invention relates to a sewing machine of any preferred type supplied with the usual needle bar, and suitable mechanism, not shown, for operatin same, and also-suitable stitch forming mec anism of any preferred type, not shown, together with mechanism for supporting and moving garment fastener portions, such as the stud and socket members, through the several movements necessary for applying stitches to the article and further to'mechanism for positioning or findin the thread-receiving openings in the artic e, this latter feature in itself and in combination with the machine being the essence of the invention.

The invention also relates to the arrangement of the mechanism for operating the fastener support so as to manipulate the f astenerfwhereby' the needles stitch from the thread-receiving openings in the fastener over the edge and beyond the periphery thereof.

7 The invention may be further briefly summarized as consistingin the construction and "combination of parts hereinafter set forth in the following description, drawings and 4 claims.

Referring to the drawings, Figure is a side elevation of a sewing machine; 1 is a plan view, sho'w'm the fastener attached to a pieceof. fabric; ig; 2 is a top plan view of a ortioi of the base with the arm removed; ig. '3 is an enlargedv ew looking at the face of the head showmg the needle bar and the-positioner'; Fig. 4 is an edge view of these parts; Fig. 5 is alien:- larged top plan view of the support for the socket member; and Fig. 6 is a sectional view'of the stud support.

In carrying out the invention any preferred form of sewing machine may be propossesses the necessary features, but I have shown one form in the drawings which is of a well known type, and in such embodiment 1 represents the base provided with the usual arm 2 for receiving the needle operating mechanism which consists of a shaft 3 mounted in suitable bearings in the arm and provided at its end with a crank disk l carrying a crank pin 5 operatively connected by a suitable connecting rod 6 with a pin 7 carried by a block 8 rigidly connected to the needle bar 9. Mounted below the base is a driving shaft 10 mounted in bearings 10 and driven from any suitable source and operatively connected by mechanism, not shown, with the shaft 3. This shaft 10 is provided with a gear 11 meshing with a gear 12 on a shaft 13 supported in a bearing 14. The outer end of this shaft carries a stitch former or looper 15 which may be of any preferred construction. Cooperating with this looper is a suitable loop hook 16 used in mechanisms of this type and reciprocated in any suitable mannerto pull the loop to one .side in the formation of the stitch.

In place of the ordinary presser foot mechanism a suitablefastener or article manipulating mechanism comprising a supporting plate 17 movably mounted upon the base 1 of the machine and having intermediate its length and width a longitudinally disposed slot 18 for receiving the shank of a screw 19 which is threaded into-the base 1 of the machine. It is obvious from this'arrangement that the plate 17 may oscillate or rotate about the shank of the screw 19 and may also be moved in a longitudinal direction and will be guided by the shank of the screw in the slot. This plate 17 is provided witha pair of upwardly extending cars 20 carrying a pin 21 upon which is pivotally mounted an article supporting bracket 22 extending forward toward the head of the machine where it is provided with a securing block 23, for a-purpose to be described, and also extends rearwardly and is guided between a pair of upwardly extending lugs A spring 25 is arranged between the lugs 2 L and bears against the plate 17 at one end and upward against the end of the supporting bracket 22 whereby the normal tendency of this bracket is to move with the left'- hand end, as shown in Fig. 1, downward toward the work. The fastener or article supports are mounted on the extreme forward end of this bracket 22 and will be later described, and in order to impart the proper movement to the article suitable mechanism is provided, and it consists of a pair of bosses 26 and 27, the former receiving the threaded shank of a screw 28 and the latter receiving the threaded shank of a screw 29. Rotatably mounted upon the shank of the screw 28 is a worm gear 30 meshing with a worm 31 mounted upon the shaft 10. This gear is secured to a cam disk 32 having a cam groove 33 in the upper face, as shown in Fig. 2. One half of the cam groove isless in diameter than the other half, and the two halves form a shoulder as shown at 34. in Fig. 2. Engaging in this groove is a suit able roller 35 shown in dotted lines in Fig. 2, and this roller is mounted on the outer end of a lever 36 extending up through the base plate 1, and above the base plate is provided with an arm 38 having an areshaped slot 38 therein. Secured in this slot is a bolt 39 which is pivotally connected to a link 40 in turn pivoted to a bolt 41 mounted in the slot 42 in the supporting plate 17 By the operation of the cam the plate 17 receives an oscillating motion about the shank of the screw 19, and this motion is for transferring the articles so that the needles will engage another pair of holes as will hereinafter be more fully described.

It is also necessary to impart a longitudinal movement to the supporting plate 17 in the production of the proper numberof stitches, and this is accomplished by the following mechanism. Rotatably mounted upon the shank of the screw 29 is a gear 43 meshing with a worm 44 mounted upon the shaft 10 and carrying a cam disk 15 provided with a cam groove 46, shown in dotted lines in Fig. 2. The groove is arranged in this cam so that it has a series of ofi'set portions 47, shown in dotted lines in Fig. 2. Engaging in this groove is a roller 48, also shown in dotted lines in Fig. 2, and this roller is mounted upon a lever 49 arranged under the plate and secured to a shaft 50 extending up through the plate and having a' bearing therein, and on the upper end of this shaft is rigidly secured an operating arm 51 having a slot 52 therein. This lever cooperates with another lever arm 53 arranged above the plate and pivotally supported upon a suitable screw 54 carried by the plate. This lever 53 is also provided with a slot 55. A clamping bolt 56 is mounted in the slot and is rigid with one of the arms and is loose in the slot of the other, so that there is a pivotal movement at this point, and the bolt may be moved along the slots to vary the movement of the parts. The lever 53 is rigidly secured to a sleeve 57 and at the lower end of this sleeve there is a rocker arm 58 provided with a longitudinal slot 59 in the end thereofwhich engages a screw 60 secured in the supporting plate 17. By the arrangement of these parts the cam with the groove causes the rocking of the arm 58, the latter movement causing a longitudinal shifting of the supporting plate 17.

From the operating mechanism already described, it will be seen that upon the rotation of the cams the supporting bracket 22 will assume the position shown in full lines in Fig. 2, and during such operation the cam 45 will cause the supporting plate 17 to make several longitudinal movements. This longitudinal movement imparted to the fastener by the mechanism described will cause the needles to alternately form stitches in such a way that when one needle is in a thread receiving opening the other will be beyond the periphery of the fastener adjacent another opening and vice versa, the stitches are therefore formed from the thread receiving openings of the fastener out beyond the periphery of it into the fabric. The plate will then be shifted by the cam 32 downward as shown in Fig. 2 and the cam 45 will make the proper number of stitchesin the other two holes of the article. Mounted upon the needle bar 9 is a block 61 carrying a pair of needles 62 and 63.

The mechanism thus far has been confined to one type of machine and the parts have been described only for the purpose of giving the general idea of a type. of machine which is susceptible of use with the present invention, and the description from this on will relate to the positioning mechanism for the fastener or article, and this is the essence of the present invention.

The supporting block 23 receives the article supports, in the present case the socket and stud supports, and the former consists. of a supporting member 64 with a downvwardly curved tongue 65, shown in detail-in Fig. 5, and having a circular boss 66 provided with four-curved notches or recesses 67 Two curved recesses are arranged on each side of the longitudinal axis of the tongue 65, as shown. On the underside of this circular boss 66- is a downwardly extending knob 68 adaptedto pass into the socket of the socket member of the fastener. This knob will support a fastener on the underside of this boss, so that it may be rotated by hand upon the knob but after being rotated will remain in position. for supporting the stud member of the fastener consists of a member 70 similar to the boss 66 except that it is provided centrally with a socket or opening for receivin 'the stud of the stud member," this stud eing held in the socket by a pin 71 pressed into engagement under the head of the stud by a spring 72. It is obvious that the tongue with the boss carrying the fastener will raise The device up and down with the supporting bracket 22. The raising operation, however, is accomplished by mechanism not shown, since it forms no part of the invention and may be brought about in any suitable manner. Secured to the head of the machine in any preferred manner is a bar 73 extending downward and curved under the head to a point such that its end extends over the boss 66 when the supporting bracket is moved to one side of the machine, as is shown in Fig. 2; Mounted in the end of this bar over the boss 66 and in alinement with two of the curved recesses 67 in the boss is a pair of vertically disposed openings 74 which are open at the top and are closed at the bottom except for a similar opening 75 indicated in 3 and 4. Arran ed in each of these openings 74 and guided in the opening 75 are positioning fingers or pins 76 which extend below the end of the bar and are adapted to project downwardly below the lower surface of the boss 66, as shown clearly in Figs. 3 and 4. Each of these fingers or pins is provided with rounded lower ends 77 and a flange 78 arranged within the openings 74 receivingthe thrust of a spring 79 which thrusts upwardly against a plate 80 secured to the upper face of the bar in any suitable manner. This plate is provided with suitable openings 81 for receiving the shanks of these guiding the same.

The location and arrangement of the parts is such that when the supporting bracket comes to a state of rest, two of the curved recesses 67 in the boss 66 are in alinement with the two pins 76 so that upon the raising of the supporting bracketthese two pins will project down through these curved recesses, as shown in Figs. 3 and 4, and the needles will be above the face ofthe boss 66 and in alinement with the two other recesses 67 on the opposite side of the tongue 65.

The operator then forces the snap fastener onto the knob 68 and if two of the openings therein are in alinement with the pins'76 these pins will snap into the openings and the fastener will be positioned properly for the needles but if the openings are not in alinement'with the pins the pins will be raised against the tension of their springs and the operator must rotate the fastener until these pins snap into two of the openings. From the foregoing, therefore, it will be seen that when the operator places a fastener or article upon the support and rotates the same or endeavors to rotate it, as in the case I where the pins have already engaged in the openings thereof, he knows that the fastener when held against rotation by the pins is in position for sewing onto the cloth. The sewing operation then continues in a well known manner and the article is applied to the goods in the manner shown in Fig.1.

pins and vice, and means It will be seen from the arrangement of the fastener support that the notches cut in the periphery of the boss will serve as an indicating means whereby the operator may know when he locates the threadmeceiving openings of the fastener in alinement with these notches with the fastener in the proper position, so that the thread receiving openings may receive the needles. The knob on the underside of 'theboss as well as the spring-pressed pin in the stud holder will serve to hold the articles against free rotation after they have been properly positioned.

Having described my invention, I claim 1. In mechanism for sewing fasteners having thread-receiving openings to material, stitch forming mechanism including a pair of needles, means for operating said needles in unison, and means for manipulating the parts whereby upon each stitching operation of the needles one of the needles will enter one of the thread-receiving openings in the fastener and the other will enter the material beyond the edge of the fastener adjacent to another opening.

2. In mechanism for sewing fasteners rial, stitch forming mechanism including a pair of needles, means for operating said needles in unison, a fastener supporting defor manipulating the fastener supporting device whereby upon each stitching operation of the needles oneof the needles will enter one of the thread-receiving openings in the fastener and the other will enter the material beyond the edge of the fastener adjacent to another opening.

3. In mechanism for sewing fasteners having thread-receiving openings to material, a, pair of needles spaced apart and adapted to operate in two separate thread-receiving openings of the fastener, the space between such needles being such that when one needle is in one opening, the other needle is just beyond the edge of the fastener adjacent to the other opening of the two in which the needles are operating, means for operating the needles in unison, and means for bringing about a relative movement of the fastener with respect to the needles whereby stitches will be alternately formed from the thread-receiving openings over the edge of the fastener.

4. The combination with a sewin machine, of means for supporting and holding a fastener member having a socket, said means comprising a supporting member, and a knob or projection adapted to fit in the socket of the fastener member.

5. The combination with a sewing ma-- chine, of means for supporting and holding a fastener member having a socket, said means comprising a supporting member, and

a knob or projection adapted to fit in the socket of the fastener member and an engagthe stud within the socket and preventing ing device for preventing free rotation therefree rotation thereof after being positioned. 10 of after being positioned. In testimony whereof I afix my signa- 6. The combination with a sewing mature in presence of two witnesses as follows.

5 chine, of afastener support comprising a FRANK E. WILSON;

supporting member, having a socket for re- Witnesses: ceiving the stud of one member of the fas- G. O. FAR UHARsoN,

tener, means engaging theshank for holding C. H. Transom.

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