US394967A

US394967A - Tuck-marking attachment for sewing-machines

Info

Publication number: US394967A
Authority: US
Publication date: 1888-12-25
Anticipated expiration: 1905-12-25

Description

(No Model.)

J.M. GRIEST.

' TUGK MARKING ATTACHMENT FOR SEWING MAGHINES. No. 394,967. Patented Dec. 25, 1888.

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UNITED STATES PATENT OFFICE.

JOHN M. GRIEST, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE SINGER MANU- FACTURTNG COMPANY OF NEV JERSEY.

TUCK-MARKING ATTACHMENT FOR SEWING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 394,967, dated December 25, 1888.

Application filed December 27, 1887. Serial No. 259,092- (No model.)

To aZZ whom it may concern.-

Be it known, that I, JOHN M. GRIEST, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois,

have invented certain new and useful Improvements in Tuck Creasers or Markers for Sewing-Machines, of which the following is a specification, reference being had therein to the accompanying drawings.

My invention relates more particularly to that class of tuck creasing or marking devices in which the creasing is effected by a small grooved roller carried by a rock shaft or arm receiving its movements from the needle-bar of the machine and a retracting-spring, the said roller forcing the fabric to be creased against an upturned lip on the base-plate or lower arm of the attachment.

. The object of my invention is to provide a simple, compact, and convenient creasing or marking device of the class referred to, although some features thereof are applicable to other forms of tuck-markers than those embraced by the said class. 2 5 In the drawings, Figure l is a partial front end view of a sewin g-machine with my marker 1n operative position relative to the needle and presser bars thereof. Fig. 2 is a plan view of the marker removed from the machine. Fig. 3 is a front view of the same. Fig. atis a detail view of the front end of the marker with the parts in marking or creasing position. Fig. 5 is a sectional view on line 5 5, Fig. 2, looking in the direction indicated by 5 the arrows. Fig. 6 is a view similar to Fig. 5, showing the operating-lever detached from the marker-carrying bar. Fig. 7 is a section on line 7 7, Fig. 2.

A denotes a portion of the depending head at the forward end of the bracket arm of a sewing-machine, B the needle-bar, and C the presser-bar. Surrounding the presser-bar, which is, as usual, arranged rearward of the needle-bar, is a tubular attachment-holding bar or sleeve, D, such as is fully described in my application, Serial No. 259,089, filed simultaneously herewith, the attachmen tbar being provided with a clamping-lever, (7, operating as set forth in my said application.

E denotes the body-bar of the attachment, said bar bein g bent downward and flattened to form an arm or plate, e, provided at its forward end with an upturned creasing-lip, e, which is beneath the bar E.

F is a bracket through which the bar E passes, and by which the attachment may be secured to the attachment-bar D.

G is the rocking marker-carrying bar, extending lengthwise of the attachment and pivoted on the bar E by means of loops g, formed on the said rocking bar, the latter being provided at its forward end with a spring-arm,

g, carrying the grooved creasing-roller 9 The spring-arm g is attached to a depending arm 011 the rocking bar G, and is extended below the bar E (on which the said rocking bar is pivoted) to the said creasing-roller, the latter being at the free end of the said arm. The said spring-arm thus serves as a positive connection between the creasing-roller and the rocking bar, so as to cause the former to follow the circular or rocking movements of the latter, although the resistance of said arm admits of a yielding contact between the creasing-roller and the creasing-lip e, which co-operates therewith; or, more properly, admits of a yielding contact, of the creasingroller with the fabric, which passes over said lip when the attachment is used. The, roller 9 is steadied by a small arm or link, 6 hav- 8o ing a hole at its lower end to receive the pivot pin of the said roller, and having at its upper end a slot, 6- to receive the shank of a screw or pin, 8. The said arm or link 6 serves to limit the movement of the creasing-roller carried by-the spring-arm g away from the center of motion of the rocking bar G.

H is-the operating-lever, to be enga ed by a screw or other projection on the neec le-bar of the machine, the said lever being prefero ably detachably connected with the rocking marker-carrying bar by the flanged head of a pin, 2', passing through a loop or lug, 71, formed on the said lever. The head of the pint is cut away on one side, and when the said pin 9 5 is turned over so that the cut-away side is down, as in Fig. 6, it is obvious that the flanged head of the pin will not engage the bar G, and the operating-lever will thus be detached therefrom. The pin '0' is held either in or out of its operative position by a pin or small lever, i, the upper end of which passes through the pin 1', and thus holds it in the loop 71, and the lower end of which is forked to embrace the lever ll. \Vhen the forked end of the lever 1 is disengaged-from the lever II, as shown in Fig. 0, the pin will be free to be turned in the loop 71 to bring the full portion of the head of the said pin down to engage the bar G, or to turn it up to disconnect the said bar from the operating-lever 10 ll. Atorsional spring, 0', surroundingthebar E and connected with the rocking bar G, serves to effect the return l'llOYGlllGllllS of the latter bar, these movements being limited by a stop-pin, 12", passing through the bar E and I 5 also serving to hold the bar G thereon.

J is a bar which passes through the bracket 13 and which carries the guide A; for the edge of the material, the shank. of the said guide bein n'eferabl y pivoted to said bar, so that the guide may be turned up out of the way, as indicated in dotted lines in Fig. 5, when not in use. The edge of the fabric to be guided will pass between lugs or lips it" 71- struck out from the metal from which the 2 5 edge-guide and its shank are fmmed.

ing bar J in the said bracket, the latter being provided with the fixed screw-threaded pin 0 f for the receptionof the said nut. Thebars E and J are provided with flattened faces, (see Fig. 7 against which bears a housingplate, m, outside of which is a plate or washer, a. The bearing portion f of the nut f is rounded so that the plate or washer a can rock slightly to accommodate itself to the flattened faces of the bars E and .T, so as to bear equally thereon and hold both firmly if one should project out a little beyond the other. \Vhen thenutfisloose1'1ed,the bar E, with which the marking or creasing devices are connected, may be adjusted laterally through the said bracket, (which latter is of course stationary relative tothe needle of the machine) to vary the position of the said creasin devices accordin to the width of the tuck which is to be made. The loosening ot the said nut also leaves the bar J free to be adjusted laterally to move the edge-guide 7c 5o nearer to or farther from the needle of the machine.

\Vhen the min-king dcvices are adjusted. laterallyot the ln-acket l the screw f which is tapped in said. ln'acket and the head of which overlaps the operating-lever 11', holds the said lever in operating position contiguous to said bracket.

As my improved creaser or marker is adapted to be attached to aholding-bar, which is arranged rearward of the needle, the marking or creasing devices are entirely out of the way of the operator, so as not to interfere with the work. l\loreover, by constructing the attachment so that the creasing or marking devices are rearward of the presser-foot and needle well-defined creases maybe formed nearer to the line of stitches than by the creasingdevices which are arranged in frontof the needle and presser-l'oot, for the reason that a crease made in front of the needle, if near enough to the latter to come in the line of the presser-foot, will be nearly or quite obliterated when passed under the presser-foot in the operation of sewing. lrurthermore, by providing my improved tuck creaseror markm' with abraeket by which it may be attached to a support or attachment-bar secured to the depending head of the machine a. neater and more compact device is produced than is possible when the marker or creaser is constructed for attachment to the \\'ork- )late of the machine.

\Vhen the creaser or marker is secured in operative position on a sewing-machine and the machine set in motion, a projection on the needle-bar, on the descent of the latter, comes in contact with the perating-lever 1], and as the said lever is connected to the bar G the said bar is caused to rock on the bar E, fore ing the creasing-roller carried by the s jn'iugarm g at the fmward end of the said bar (i i in contact with the fabric resting on the lip The bar E held in the bracket F by the set-nut j", which also secures the guide-l'loldl e, the said spring-arm yielding as it rides over the said lip, and therelily creasing the fabric with a yielding rolling pressure, which precludes any possibility of cutting or abrading the thinnest fabrics. \Vhen the needlebar rises, the parts are returned to their normal positions by the torsional retractingspring 6', and thus the operations are repeated as the work is fed through the machine.

If it is desired to run the machine without creasing the goods and without removing the creaser from the machine, the lover 1:[ maybe disengaged from the rocking bar G by raising the forked lever t" from the lever II and turning the pin t over, so that the full portion of its head will be upward or away from the bar G, as shown in Fig. 6, and it the edge guide 7t should then be in the way it may be raised to the position shown in dotted lines in Fig.

The attachment and presser-loot holding and securing devices incidentally shown in Fig. 1. of the drawings are not herein claimed, as they are embraced by my a 'lplieation, Serial N 0. 259,089, hereinbel'ore referred to. Neither do I claim in this ap ication. the featu re herei 11. shown of locating the creasing devices rearward ot the prcsser-loot of the machine, or the .leature of a rocking bar or shaft having an arm carrying a (n'easingq'oller, which oscillated inv the arc of a circle directly by the said arm, these features of my invention being reserved to my application, Serial No. 259,090, filed sii 1 l nltai 1 con sl y herewith.

I claim 1. In, a tuck-marker for sewirig-machines, the combinath)n, with the bar E, the creasin devices, and. the rocking bar G, of the operating-lcvrn- 11, having the loop 72., the pin '1', free to turn in said loop and having its head cut away on one side, and the forked. lever t, to

ITO

retain the said pin in said loop and to hold it in and out of operative position.

2. In a tuck creaser or marker for sewing machines, the co1nbination,with the bracket F, of the creasing attachment supported by and laterally adjustable relative to said bracket, the operating-lever H, loosely pivoted on the bar E of the said creasing attachment, and the screw f which is tapped in said bracket and the head of which overlaps the said lever to retain the latter in operative position relative to said bracket.

In a tuck creaser or marker for sewing.- machines, the combination, with the bracket F, having the threaded pin f of the bars E and J, passing through said bracket, the marking devices supported by the said bar E, the edge guide attached to the said bar J, the housing-plate on, the plate or washer n, and the set-nut f.

4. In a tuck creaser or marker for sewingmachines, the combination, with a rocking bar or shaft extending lengthwise of the marker and provided with a spring-arm carrying a creasing-roller, of a creasing-lip beneath the center of movement of the said rocking bar and a device moving with the rocking bar for limiting the outward movement of the said roller from the center of movement of the said rocking bar, whereby when the marker is in operation the said roller will be alternately lifted from the said lip and forced into yielding contact therewith, and when in such contact with the lip will be rolled backward and forward over the same in the directions of the movements of the rocking bar as the latter oscillates.

5. The combination, with the rocking bar G, having the spring-arm g, provided with the creasing-roller of the arm or link 6 connected to the said spring-arm and having the slot 0 the bar E, and the screw 0 passing through the slot of the said link and serving to connect the upper end of the latter to the said bar E.

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

JOHN M. GRIEST.

lVitnesses:

HENRY CALVER, EWELL A. DICK.