US151781A

US151781A - Improvement in rufflers for sewing-machines

Info

Publication number: US151781A
Authority: US
Publication date: 1874-06-09
Anticipated expiration: 1891-06-09

Description

UNITED STATES PATENT QEEICE.

JOHN IRVINE, OF IOKESBIIRG, PENNSYLVANIA.

IMPROVEMENT IN RUFFLERS FOR SEWING-MACHINES.

Specification forming part of Letters Patent No. 151,781, dated June 9, 1874; application filed April 18, 1874.

To all whom it may concern:

Be it known that I, JOHN IRVINE, of Ickesburg, in the county of Perry and State of Pennsylvania, have invented a new and Improved Buffler for Sewing-Machines, of which the following is a specification:

The invention is an improvement in `the class of ruffiers in which motion is derived ,from the needle-post, and the feed may be `to the presser D, as in some other attachments. A The lever E, which works the rufer, has a long slot, G, in which the pivot-pin H, on which it vibrates, is arranged to shift along the lever,

for varying the throw of the ruflier. This pivot is mounted in the bars I, which are pivoted to plate B at J, so as to swing the pivot H along the slot K in plate B, to change the throw of the rufiling-plate. These bars I are held at any point by a ton gne, L, projecting into notches in the end of plate B. They are contrived so that the tongues spring into,

the notches, and are released for shifting the pivot by pressing the two bars together with the thumb and nger. It will be seen that this can be readily done when the machinel is in motion without interrupting it, and the throw of the ruftler can be thereby changed to any required extent. By shifting the pivot upward the throw is increased, and downward it is shortened. IVhen shifted down to the bottom of slot K the movement of the ruftler will be shortened to correspond with the feed, so that the cloth will not be ruffled, although the rufiier continues to work. M represents the plate which I propose to arrange over the ruflier to carry on the band or other cloth to be sewed on without ruining the cloth or being rufed itself.

Having thus described my invention, I claim as new, and desire to secure by Letters Patent- The pivoted spring-bars I I, having the Vtongue L, in combination with the slotted plate B, having notches or serrations, the pivot H, and slotted lever E, carrying ruffler-plate I, all combined and arranged as shown and described, for the purpose specified.

JOHN IRVINE.

Witnesses:

JOHN PECK, JOHN H. KENDIG.