US131418A - Improvement in tuckers for sewing-machines - Google Patents

Description

JOSEPH H. BEAN, OF CINCINNATI, OHIO.

IMPROVEMENT IN TUCKERS FOR SEWING-MACHINES.

Specification forming part of Letters Patent No. 131,418, dated September 17, 1872.

To all whom it may concern:

Be it known that I, JOSEPH H. BEAN, of (Jincinnati, in the county of Hamilton and State of Ohio, have invented a new and useful Improvement in Tucker; and I do hereby declare that the following is a full and exact description of the same, reference being had to the accompanying drawing and to the letters of reference marked thereon.

This invention relates to that class of sewing-machine attachments which are designed especially for tucking purposes; and consists mainly in the combination of a main plate having a spring-plate for holding the tuck, with a swinging arm pivoted to the main plate provided with a point and an adjustable gageplate, as will be fully described hereinafter.

In the drawing, Figures 1 and 2 represent plan views of my improved tucker. Fig. 8, a side elevation; Figs. 4, 5, and 6, partial views,

.representin g the fabric in different positions;

and Figs. 7, 8, and 9, views of the peculiarlyconstructed point which assists in guiding the cloth by the seam.

To enable others skilled in the art to make and use my invention I will now proceed to dedescribe fully its construction and manner of operation.

A represents the plate, by means of which my improved device is attached to the clothplate of the sewing machine. It is provided with the slots a a, either of which is adapted to receive the securing-screw x in the usual wellknown manner. a represents an arm, by means of which it is united to the main plate B. This arm extends beneath the bar 0 of the slotted piece 0 rigidly attached to the main plate A, and terminates in the slot of piece 0, it being secured from displacement by the upturned ends a a the latter of which, a also serves as a gage. The inner edges of the plate A are also turned up to form gages a a, as clearly shown in the drawing. The main plate B is .made of suitable length and width, as shown,

and has rigidly attached to it the slotted plate 0, as before described, the latter being provided with flanges at each end, so that a space is left between the platesB and G, in which moves freely the arm a. of the'plate A. D represents a'spring-plate rigidly fixed at one end to the arm B, the free end of which rests upon the inner end of plate 0, as shown. E represents a swinging arm pivoted at one end to the end of plate B, as shown, which arm, being curved for a short distance, is extended "in a straight line until its inner. end terminates, when in place, just beyond the inner end of the springplate 1), where it is provided with a point, e,

represents a slotted gage-plate adjustably attached by means of a set-screw to the swinging arm E, as shown. The edge of this plate,

against which the cloth bears when the tucker V is in use, is preferably set at a slight angle to the line of its sides. Gr represents a swinging spring folding-plate, pivoted at one end to the plate 0, and provided with an arm, g, by means of which its movement in one direction is limited, as shown. H represents a supplemental plate adapted to hold down the tuck as the fabric is passing through the device, which is rendered capable of adjustment by means of a slot and headed rivet, as shown.

The manner of using my improved device is substantially as follows: The tucker is first adjusted on the machine in the proper position to produce the width of tuck desired, and the distance between the tucks. For instance, if it is desired to make tucks a quarter of an inch in width and have them lie together, set the main plate B with the line, Fig. 1, which is marked upon the plate 0 in line with the needle. Then adjust the gage F and also the plate A in line with the line of Fig. 2. If it is desired to increase the width of the tucks and still have them lie together, move the plates B and A equal distances away from the needle, the gage-plate F being adjusted always in line with the gage a of plate A. For instance, if it is desired to make tucks half an inch in width, move plate B until the line of Fig. 2 is in line with the needle and the gages of plate A are in line with Fig. 4. In this position it will be observed that the cipher-point of the main plate and the gages of the plate A are 2 senate equally distant from the needle. If it is desired to have the tucks lie apart from each other on the garment, move the cipher-point of the main plate B as much further from the needle than the plate A and gage F as it is desired to have the tucks separated from each other. The desired adjustment of the tucker having been made, it is securely fastened in place upon the machine by the usual set-screw, which in this case serves to hold both the plates -A and B, the plate B being held by the pressure of the arm a. The manner of forming the tuck is as follows: The plates F and G are first swung out of the way to permit the fabric to be easily placed in the tucker. The hem of the garment is then placed under the spring-plate D, with the seam of the cloth in line with the edge of the plate. The arm E is then swung back to place and the fabric turned over the plate F. The swinging plate G is then turned back to place, and, the cloth being fed to the machine, the fold is stitched to form a tuck. The first tuck having been formed, the operation just described is substantially repeated. The tuck just made is now placed beneath the plate D, with its seam in line with the edge of the plate, as shown in Fig. 5. The upper portion of the cloth is now turned back over the plate D, and the plate E is swung to place, as shown in Fig. 6. The remainder of the cloth is then thrown back over the plate F, as shown in Fig. 4, and the plate G being swung to place, the fabric is fed through the machine as before, the plate H serving to hold the fabric and smooth the fold as it is passing through the machine.

Some of the marked advantages of this construction are as follows. The device is readily used by any one, the cloth being placed'in it without folding it or preparing it in any manner whatever, the operation being entirely mechanical, Without requiring the exercise of judgment. The rules for adjustment are ex ceedingly simple, the operator being required simply to keep the cipher-point of the plate B and the gages of plate A equally distant from the line of the needle, if it is desired to have the tucks lie together, the distance from the needle regulating the width of the tuck or, if desired to have the tucks lie apart, it is necessary simply to move the cipher-point of plate B as much further from the line of the needle than the gageA as it is required to have the tucks separated from each other. Another very important advantage arisingfrom the con struction of my improved tucker is that the upper side of the seam of every tuck is exposed to view with the tucks lying downward. The employment of the peculiarly-constructed point of the swinging arm E in connection with the sprin g-plate D is especially important, because by this means the cloth is securely held as it passes through the machine, and tucks of even width are secured. The edge of spring-plate D, resting in a fold of the cloth, holds it securely from displacement in one direction, and the point resting in the seam holds it securely from displacementin the other. If desired, the plates G H may be dispensed with.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. The combination of the plate B, having spring-plate D, with the swinging armE having the point e and the adjustable gage-plate F, combined and arranged as described.

2. The combination of the plates A B 0, spring D, swinging arm E, gage-plate F, holders G and H, constructed and combined as described, for the purpose set forth.

This specification signed and witnessed this 2d day of September, 1872.

J. H. BEAN.

Witnesses: V S. J. NoYEs,

H. E. MATTHEWS.

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