US770481A - Tuck-marking attachment - Google Patents

Description

PATENTED SEPT. 20, 1904.

S. A. SWART. TUGK MARKING ATTACHMENT.

APPLICATION FILED SEPT. 30, 1901.

N0 MODEL.

WITNESSES! INVENTOR ATTORNEY UNITED STATES Patented September 29, 1904.

PATENT OFFICE.

SAMUEL A. SWARI, OF MOUNT VERNON, NEW YORK, ASSIGN OR TO WILLCOX & GIBBS SEWING MACHINE COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

TUCK-MARKING ATTACHMENT.

SPECIFICATION forming part of Letters Patent No. 770,481, dated September 20, 1904.-

Application filed September 30, 1901. Serial No. 77,044. (No model.)

. zen of the United States, residing at Mount Vernon, Westchester county, State of New York, have invented certain new and useful Improvements in Tuck-Marking Attachments, of which the following is a specification.

Tuck-marking attachments, as well understood, are provided with a marking device and with a guide, the latter being adapted to direct the goods when being operated upon so as to insure the marking of the same on the proper determined line, while its position relative to the path of the needle determines the width of the tuck to be sewed. As the-lower of the work-plate of the machine and below the upper surface of the feed-dog when the latter is in its raised feeding position, the movement or adjustment of the guide in a direction toward the path of the needle is consequently limited by said feed-dog. In this manner the Width of the narrowest tuck is of course determined by the distance between the outer edge of the feed-dog and the path of the needle, which is usually about one-eighth of an inch wide. Consequently, in order to make a narrower tuck, or one less than one- I eighth of an inch wide, it has heretofore been customary to substitute for the regular guideplate one having a notched or cut-away portion in its guide-wall, into which one side of the feed-dog may be received, so as to permit the guide to be moved or adjusted as close to the path of the needle as desired. To thus substitute one guide-plate for another, however, necessitates the disassembling of the attachment to a certain extent, and this has been found to be objectionable, both on account of the trouble and annoyance attendant upon the same and also on account of the liability of certain of the parts becoming lost or not being properly reassembled.

Having in mind the objectionable features of the usual method of adjustment as referred to, it has been the object of this invention to provide an improved guide having means for rendering it adjustable to any desired width of tuck without the disconnection or disassembling of any of the parts.

To this end the invention consists in the construction, arrangement, and combinations of parts, as hereinafter set forth in detail, and pointed out in the claims.

Referring to the accompanying drawings, Figure l is a plan view of a tuck-marking attachment embodying my invention, the same being shown in position upon a portion of the work-plate of a sewing-machine and with its guide inposition for making very narrow tucks. Fig. 2 is a view similar to that of Fig. 1 with the guide adjusted for wider tucks; and Fig. 3 is an enlarged detail view in vertical section, showing the relative positions of the feed-dog, presser-foot, needle, and attachment with a piece of folded goods in position against the guide, which latter is adjusted for the making of narrow tucks, as shown in Fig. 1.

In said drawings the supporting and guide plate 1, to which the several other parts comprising the attachment are connected and which is adapted to be secured in an adjustable po'sition on the work-plate by a screw 2, the guide 3, formed by an upturned edge or flange at one end of said plate 1, the adjust-- able sliding plate 4, mounted upon the plate.

1 and carrying at one end thereof the marking device, the latter comprising the two members 5 and 6, between which the goods are moved to be creased, and thereby marked, and the spring-arm 7 which is adapted to be connected with the needle-bar by the hook 8, so as to be operated thereby to engage with the upper member of the marking device and cause it to coact with the lower member in creasing the interposed goods, are all with the exception of the guide of usual and well-known construction and operation.

The guide or guide-wall 3 in accordance with my invention is provided with a removable section 9 at a point between its ends, which is adapted when in its normal operative position, as shown in Fig. 2, to cause the guide to present an unbroken or uninterrupted surface from one end thereof to the other like that of the usual guide for ordinary widths of tucks, but which when removed or swung backward from such position, as shown in Fig. 1, will expose a notch or opening in the wall of the guide like that of the substitute plate usually employed for the making of very narrow tucks, such notch or opening being adapted to admit of one side of the feed-dog (indicated at 10) being received therein for the purpose of permitting the guide to be adjusted to a position nearer the path of the needle, as shown in Figs. 1 and 3. This movable guide-v section 9 is located at the front edge of a pivoted plate 11, which is supported to move or swing over the upper surface of the plate 1 and is attached thereto by the pivot 12. As a simple and convenient means for holding the said guide-section 9 in its normal operative position as a part of the guide-wall I have provided a locking-lever 14, which is also pivotall y attached to the upper side of the plate 1 by a pivot 15 and is provided with a cam-surface 16 at one edge thereof for engaging with the adjacent edge of the plate 11 to hold the same with the guide-section 9 in its said normal operative position, as shown in Fig. 2. By turning this lever back from looking engagement with the plate 11 the guide-wall section 9 is thereby rendered free to be swung backward from its position as a part of the guide-wall 3, and when it is desired to again return the same to its normal or operative position and secure it there such operation may be accomplished'by first returning the guide-section and then moving the lever 14 into locking engagement therewith, or the same operation may be accomplished by simply moving the lever into its locking position, as the engaging surfaces of the parts are .so arranged that the action of the lever against the plate 11 when being moved into locking position is such as to force the guide-section into its normal operative position. i

In order to insure the engagement of the locking-lever 1 1 with the plate 11 and prevent liability of the edge of one from accidentally riding above and-over the other,I have connected a plate 17 with the pivot-pins of said parts which extends above the engaging edges of the same and in near relation thereto, so as to prevent the raising of one above the other.

Having thus set forth one practical embodiment of my invention, what I claim, and desire to secure by Letters Patent, is

1. A tuck-marking attachment for sewingmachines provided with a guide, the said guide comprising a plate provided with a guide-wall having a feed-dog-receiving notch or opening therein, a guide-section removably located in said notch or opening, and'a locking-lever for holding said guide-section in its operative position in the notch or opening, for the purpose set forth. I

2. A tuck-marking attachment for sewingmachines provided with a guide,the said guide comprising a plate provided with a guide-wall having a feed-dog-receiving notch or opening therein, apiioted guide-section movably supported in said notch or opening, and a pivoted cam-lever for holding said guide-section in its operative position in the notch or opening, for the purpose set forth.

3. A tuck marking attachment provided with a guide, the said guide comprising a plate provided with a guide-wall having a notch or opening therein, a guide-section removably located in said notch or opening, a lockinglever for holding said guide-section in its operative position in the notch or opening, and means for retaining the guide-section and its locking-lever in position for operative engagement with each other, for the purpose set forth.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, this 26th day of September, 1901.

- SAMUEL A. SVVART. Witnesses:

CHAs. F. DANE, HERBERT E. DANE.

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