US425960A - Tuck-marking attachment for sewing-machines - Google Patents

Description

(No Model.)

B. SEITZ.

TUOK MARKING ATTACHMENT FOR $EWING MACHINES. No. 425,960. Patented Apr. 15, 1890.

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ED\VARD SEITZ, OF PEOR-IA, ILLINOIS.

TUCK-MARK- ING ATTACHMENT FOR SEWING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 425,960, dated April 15, 1890. Application filed April 14, 1888. Serial No. 270,631- (No model.)

To all whom it may concern.-

Be it known that I, EDWARD SEITZ, a resident of Peoria, in the county of Peoria and State of Illinois, have invented certain new and useful Improvements in Tuck Oreasers and Markers for Sewing-Maehines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use the same.

My invention is in that class of sewing-machine attachments known as tuckers, and its novel features are hereinafter fully explained, reference being had to the accompanying drawings, wherein- Figure 1 is a perspective view of the entire attachment, certain portions being broken away to show interior construction. Figs. 2, 3, and 4 are enlarged vertical sections at the points a Z) 0, respectively, Fig. 1. Fig. 5 is a detail View looking in the direction of the arrow of Fig. 4. Fig. 6 shows the plate m enlarged. Fig. 7 shows in perspective the saddle, hereinafter mentioned.

111 the drawings,A is the presser-bar of a sewing-machine, and B is a presser-foot, secured thereto in any suitable manner. Through a heavy block C, formed integrally with the foot, passes at right angles to the usual direction of the work a preferably tubular bar I), and to this bar all the other parts of the tucker are attached directly or indirectly. Upon the rear lower side this bar is slotted, as indicated in the sectional views, throughout its entire length, for purposes hereinafter explained. The bar slides freely in the block 0, but is fixed in any desired position with reference to both longitudinal and retary motion by means of a milled set-screw E, working against a saddle F, lying within the block 0 and fitting the surface of the bar. A little in front of the bar D and parallel thereto is a second bar H, grooved upon its lower side nearly its entire length and revolubly mounted atone end in a hearing I upon the plate G and at the other in a link or arm X, rigidly secured to the bar D. The horizontal portion of the plate G is provided with a scale marked upon its surface and at its left or free end with a rearwardly-proj octing portion bearing upon its upper surface a wedgeshaped marking or creasing lug K. little above the plate G is a flatbar J, having its left end free and its right end secured to the plate. Its free end is provided with a loop Y, normally inclosing the lug K. Upon the bar II is firmly fixed an arm M, from which a spring L passes forward and downward to rest its grooved lower end upon the lug K. A set-screw K, working in the arm M, serves to increase, if desired, the pressure normally exerted by the spring upon the wedge-lug K. By a slight rotation of the bar II the spring L maybe raised from the lug for inserting or adjusting the work. The rotation iseffected by means of a sleeve provided with an actuating-lever P and with an internal projection engaging the groove in the lower side of the bar. The bar when rotated is held in position at either limit of its motion by a spring Q, which passes alternately from the upper to the lower side of the bar D when the bar H is rotated back and forth.

\Vhile the projection entering the groove in the bar II prevents rotation of the sleeve upon the bar, it offers no opposition to longitudinal motion of the sleeve with reference to the bar, or vice versa, and as the sleeve is cut away to receive in all portions a lug R upon the presser-foot the sleeve and presserfoot maintain the same relative positions when the bars D H slide (together, as they must, if at all) back and forth. The bars are thus moved whenever it is desired to vary the distance of the creasing device from the presser-foot.

A gage S, formed integrally with a sleeve T, sliding upon the bar I), serves as a guide for the edge of the work. This sleeve is provided with a set-screw U, by which the gage may be fixed at any desired point. The gage is also provided with an adjustable plate m, which enters the slot in the bar D and prevents the rotation of the sleeve upon the bar. Its edge is serrated to engage the threads of a screw-threaded rod V, lying within the bar, whenever such engagement is desirable. IVhen so engaged, rotation of the red by means of the tips IV advances the gage along the bar D and the locking by the set-screw U is unnecessary.

The entireapparatus attached to the presserfoot being supported upon the bar D, it is evident that if the set-screw E be loosened the bar and its attachments may be rotated backward and upward and, then secured by the set-screw. In this position it offers no obstruction to ordinary stitching being both above the work and above the visual line to the lower part of the presser-foot.

What I claim is- 1. The combination, with a presserfoot, a transverse bar revolubly mounted therein, and means for locking the bar in any of its posi tions, of tuck-creasing and marking mechanism supported upon thebar alone and otherwise free from the presser-foot, whereby said mechanism may Without detachment from the foot be swung upward out of the way when not in use, substantially as set forth.

2. The combination, with the tuck creaser and marker frame and the lower creasing device thereon, of the rocking bar and the lever actuating the same, the upper creasing device borneby the rocking bar,and the curved spring Q, mounted upon the rocking bar, projecting against a convex or protruding portion of the frame, and operating by passing from side to side of such convex portion when the bar is rocked to offer yielding resistance to rocking the bar from either limit of its rotation, subo stantially as set forth.

3. The combinatiomwith a' transversely-perforated presser-foot, of a slotted tubular bar sliding in said perforation, a tuck-marking mechanism secured to said bar, a threaded rod rotating freely in said tubular bar, and a work-gage sliding upon said bar and provided with a projection passing through the slot therein an d engaging said threaded rod,whereby the rotation of the rod forces the gage along the bar, substantially as set forth.

4. The combination, with the presser-foot B, of the transverse bar D, secured thereto, the plate G, rigidly attached to said bar and provided with the creasing-lug K and bar J, the bar H, revolubly mounted parallel to the bar D and bearing the upper creasing device L, screw N, sleeve 0, lever P, spring Q, and the sliding work-gage S, adj ustably fixed upon the bar D, substantially as and for the purpose set forth.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

' ED \VARD SEITZ. Witnesses:

R. E. Honens, J12, BARRETT WHITE.

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