US257518A - Joseph s - Google Patents

Description

(Model) J. s. SAGKETT.

RUFFLING ATTAGHMBNT FOR'SBWING MACHINES. No. 257,518. Patented May 9,1882.

N. PETERS. Phnmutho npher. Wauhinglon. DV (2.

UNITED STAT S PATENT OF IC JOSEPH s. saoKnrT, 0F PLATTSBURG, NEW YORK.

RUFFLING ATTACHMENT FOR SEWlNG MACHlNES.

SPECIFICATION forming part of Letters Patent No. 257,518, dated May 9, 1882,

Application filed August 24, 188i. Monet) To all whom it may concern Be it known that L'Josnrn S. SACKETT, a citizen of the United States of America, residing at Plattsburg, in the county of Clinton and State of New York, have invented certain new and useful Improvements in a Ruffling Attachment to Sewing- Machines; 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 appertains to make and use the same, reference being bad to the accompanying drawings, and to letters or figures of reference marked thereon, which form apart of this specification.

The object of my invention is to produce scallop-plaiting by means of a device for antomatically moving the fabric to be plaited or.

ruffled transversely to the line of sewing, so that the fabric will be carried by the plaiter under the needle at as many different angles with the line of sewing as there are plaits in each scallop, each plait of the scallop being presented to the needle alittle farther to the right or left than the one preceding, according as the direction of the fabric is affected by the operation of the moving device. I attain this object by the mechanism illustrated in the accompanying drawings, in which-- Flgure l is a plan view of my invention complete. Figs. 2 and 3 are detail views of the same.

Similar letters of reference indicate corresponding parts.

A is the main bed-plate of the seal-lop attachment, designed to be connected to the bedplate of any sewing-machine by a thumb-screw or otherwise; and it consists generally of a center, a, from which project thearmsb, c, and d.

Near the extremity of the arm I) rises a standard, B, on which is pivoted,'at e, the bell-crank lever C,by the movemeutof which the scalloper is operated.

Attached to the lower end of the crank-lever O, and below the pivot e,is an arm,f, which is designed to engage with the reciprocating double pawl D, which moves back and forth horizontally on the arm 11 of the bed-plateA, being held in position by the crank-disk E and the loop on the end of the arm b. This pawl is divided into two arms, g and h, which act upon opposite edges of the I-atchet-wl1ee1i,the former being made to push against and the latter to draw upon the teeth of the ratchetwheel i, which is attached to the under side of the crank-disk E, which is pivoted at the center a of the main bed-plate A.

F is aslotted cross-head lying upon the up per face ofthedisk,from opposite sidesofwhich, and at right angles, project the arms h and i, which lie immediately over the arms 0 and d of the bed-plate A, and are held in place by loops at the extremities of. these arms. It is operated by the adjustable crank-pin j, which moves in the slot as the disk revolves, thereby giving to its arms-h and i an intermittent motion from right to left, and vice versa. The disk has a series of holes in it arranged at different distances from the center, and this crankpin can be adjusted from one hole to the other, according to the length of stroke it is desired to give the arms.

The cranlbpinj can be inserted in the disk at any desired distance from the center, for the purpose of regulating the transverse movementof the arms of the cross-head.

()n the arm h is a movable slotted guide, G, which is held in position on the arm by a set screw, k. For convenience in its adjustment the arm h can he graduated.

In operation the'scalloper is first attached to the bed-plate of themachine in such a manner that the needle set-screw can be passed through the elongated slot of the erankdcver U and so adjusted that it shall move freely in the slot, the arms h and i being in front and lying transversely to the feed of the machine. The plaiter or ruffler, which is designed to be used in connection with the movable guide in a manner similar to that shown in my application No. 40,770, filed August 26, 188i, is then placed in its working position. The fabric to be plaited or ruffled is then placed in the guide G on the arm h. Then adjust the crank-pinj in the disk E according to the depth and shape of the scallop desired.

The farther the pivot is placed from the center of the disk the greater is the transverse movement of the bar h and the deeper will be the scallop.

If it is required to change the depth of the scallop and retain the same shape, then move the guide G to the left on the bar it to increase the depth and to the right to decrease it.

' The perpendicular movement of the needlebar operates the crank-lever O, which imparts through the arm f a reciprocating motion to the double pawl D, which, acting upon the ratchet-wheel of the disk E, revolves it, thereby giving to the armsh and i of the cross-head F an intermittent motion transversely, carrying the holder G with the fabric to be scalloped to the right while one-halfof the number of plaits of the scallop are being made by the plaiter and to the left while the otherhalf are being made, the number of plaits being always equal to the number of teeth in the ratchet-wheel i.

Thepeculiarconstrnction an d operation ofthe pawl D enable the operator, if he so desires, to revolve the disk E while the needle is in the fabric, as then, bythe position ofthe crank-lever O, the pawl is drawn back, and thus allows the free revolution of the disk. WVh'en the needle is out of the fabric the pawl is carried forward by the elevated crank, and thus prevents the revolution of the disk while held in that position.

By my invention great variety can be readily given to the form and depth of the scallops without affecting the plaiting.

What I claim, and desire to secure by Letters Patent, is

l. The combination of the crank-lever O, the double pawl D, a ratchet-wheel, a revolving wheel or disk carrying a crank-pin, and a reciprocatin g cross-head carrying a guide, G, substantially as shown.

2. The combinatiomwith the crank-lever (J and the double pawl D, of the guide G and intermediate mechanism, substantially as described, for'operatin g said guide from said pawl, as set forth.

3. The reciprocating guide G, slotted so as to be adjustable, in combination with the crosshead and its operating mechanism, substantiallyas set forth.

In testimony whereofI do affix my signature in presence of two witnesses.

- JOSEPH S. SACKETT.

perfect uniformity of the z 5 Witnesses JAs. E. RILEY, J. P. BRENAN.

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