US232130A - Anthony iske - Google Patents

Description

(No Model.)

A ISKE Swinging Treadle for Sewing Machines.

Patented Sept. 14,1880.

. ATTORNEYS UNITED STATES PATENT OFFICE.

ANTHONY ISKE, or LANCASTER, PENNSYLVANIA, ASSIGNOR TO ISRAEL L. LANnIs, or SAME rLAoE.

SWINGING TREADLE FOR SEWING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 232,130, dated September 14, 1880.

Application filed Apr-i119, 71880. (No model.)

To all whom it may concern:

Be it known that I, ANTHONY IsKE, a citizen of the United States, residing at Lancaster, in the county of Lancaster and State of Pennsyl vania, have invented certain new and useful Improvements in Swinging Treadles for Sewin g-Machines, and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others 1 o skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or fig ures of reference marked thereon, which form a part of this specification.

This invention relates to treadles for operating sewing-machines and other mechanism. The nature of said invention consists in the peculiar suspending an d bracing devices of the said treadle, and in the construction, combination, and arrangement of the various parts of in y treadle mechanism herein after particularly set forth and claimed.

in the accompanying drawings, Figurel represents a perspective view of my improved trcadle mechanism. Fig. 2 represents a side view of the same, and Fig. 3 represents a detail view of the treadle with its suspendingyoke and the arm attached thereto.

In said drawings, A designates the frame of a sewing-machine or other mechanism to which my improved treadle is attached, the top of the said frame having been removed to show the devices hereinafter described. B designates a rod extending across the upper part of said 3 5 frame, from side to side thereof, and serving as a support for a yoke, O, which is sleeved thereon by means of perforated lugs formed in or on its ends, so as to allow said yoke to swing freely. Bent treadle-barD and treadle 0E are suspended from said yoke, said parts bein g cast together or rigidly connected, so that they swing as a whole on rod B when said treadle is moved backward or forward. Stops F, rigidly secured upon rod B, prevent the end- 4 5 wise motion of said yoke and keep the treadle in its proper position in the middle of the lower part of the machine. These stops are provided with lugs f, whereby the said rod B may be attached to the under side of the machine top or table. When thus attached the rod need not be extended from side to side of the frame.

G designates a rearwardly-extending arm rigidly connected to one end of yoke G and having its rear end pivotally attached to one end of pitman H. The other end of said pit- 5 5 man is similarly attached to a wrist-pin, I, arranged eccentrically upon driving-wheel J.

This treadlc may be operated from the knee or hip and either sitting or standing. It is es pecially adapted to the use of persons with stiii' 6o ankles or artificial legs. The required motion of the foot and limb is a perfectly natural one. The swinging motion of the treadle thus caused is transmitted easily, through the before-mentioned connections G H, to the wrist-pin I, 6 5 which, being firmly attached to wheel J, necessarily revolves about the center of said wheel and compels the rotation of the wheel itself.

The wheel may be rotated in either direction, the one chosen depending on the position of the wrist'pin with respect to the center of the wheel at starting, or, more exactly, with respect to the deadpoints, which are respectively a little above and behind and below and in front of the wheel center. The rotation of the wheel can, of course, also be reversed by reversing the motion of the said treadle.

The yoke (J oby iously braces the trcadle-bar D. Nevertheless, it is possible to dispense with said yoke and hang the said bar directly from said rod B.

Other changes may also be made in the various parts of my treadle mechanism without departing from the spirit and scope of my invention.

Of course, the arm and pitman, as well as the other devices, must be of such proportions as to operate in the manner herein described.

When at rest the treadle naturally takes a sh ghtly-forward position, so as to be convenient 0 to the foot of the operator.

If the wheel catches on a dead-point it is easily relieved by a slight backward push of the operators foot. The treadle-bar D yields slightly to such pressure, and its elasticity 9 5 causes a rebound of all the devices as soon as said pressure is removed, and this frees the mechanism from the dead-lock.

Having thus fully described my invention, ing-plates f, all substantially as and for the what I claim as new, and desire to secure by purposes set forth.

Letters Patent, is- In testimony whereof I affix my signature The combination of treadle E,eurvede1ast1o in presence of two witnesses.

5 rod D bifurcated l'iraeing-yoke 0, having per- ANTHONY ISKE.

forated ends, and rigid arm G, extending ob- Witnesses: liquely downward and backward from said ZURIEL SWOPE, yoke, with rod 13, having stops F and fasten- 1?. DONNELLY.

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