US104350A - Improvement in treadle-movements - Google Patents

Description

1 2-Sl 1eetsSh eet I. O. B. POTTER. TREADLE MOVEMENT.

No. 104,350. j y jjagtented June 14, 1870.

2 Sheets-Sheet 2.

0.B.POTTER. V TREADLE MOVEMENT.

N0. 104,350. fatented June 14, 18 70.

UNITED STATES PATENT OFFICE.

oit NDo B. POTTER, OF NEW YORK, n. Y.

IMPROVEM ENT IN TREAD LE -MOVEM ENTS.

Specification forming part of Letters Patent No. 104,350, dated June 14, 1870.

To all whom tt'may concern:

Be it known that I, ()RLANDO B. POTTER, of the city, county, and State of New York,

4 have made an invention of a new and useful improvement in treadle-motions for sewingmachines, and for other purposes; and I do hereby declare that thefollowin g is afull, clear,

and exact description and specification of the-- ant, or byboth simultaneously, the apparatus.

being operated by the foot through the intervention of a treadle, and bein g operated by the hand through the intervention of a hand-lever that is connected with the rotating drivingshaft by means of a connecting-rod and crank.

The invention may be embodied in various forms, two of which are represented in the accompanying drawings upon a scale of one-sixth the working dimensions.

Figure 1 represents a view of the rear side of one of the forms of the machine, and Fig. 2 represents a plan of the same with a portion of the table removed. Fig. 3 represents a front view of the other form, and Fig. 4 represents a view of one end of the same. r

In the'form of treadle-motion represented at Figs. 1 and 2 the driving-shaft a. is connected with the treadle e in one. of the usual modes by means of the connecting-rod d, which is applied to the crank-pin c, projecting from the rear side of the pulley fly-wheel b. The handleverj, by means of which the hand of the attendant operates, is pivoted to a bracket at the side of the frame. It has a handle, g, formed upon its front end, and its rear end is connected by the connecting rod d with the same crank-pin, c, that receives the connectingrod of the treadle e. The connecting-rod dis jointed at f to permit it to adapt itself to the arrangement of the shaft a crosswise to the:

rocking axis of the treadle e; and the connecting-rod d of the hand-lever j is jointed at f in like manner.

Instead of applying the connecting-rod of the hand-lever to the crank-pin which receives the connectingrod of the treadle, the former .may be applied to a crank-pin projecting from a crank that is secured to the front end of the;

driving-shaft a. In this case the hand-lever should be pivoted to a bracket at itsrearend,

-instead of its middle, and the connecting-rod should be connected with the hand-lever at a point between its handle and its pivot.

In the form of machine represented at Figs. I '3 and 4 the driving-shaft a extends parallel with the front of the machine, and is cranked to receive the connecting-rod d of the treadle e, which connecting-rod need not be jointed. The pulley fly-wheel b is arranged at one end of the driving-shaft a, and is fitted with a crank-pin, c, to which the connecting-rod d of the hand-leverj is applied, the handlever being pivoted at its rear end to a bracket which depends from the table of the machine.

What is claimed as the invention to be secured by Letters Patent is--- The combination of the frame and the shaft of the treadle-motion with both a treadle (for the foot of the operator) and with a hand-lever, substantially as above set forth.

- In testimony whereof I have hereto set my hand this 7th day of March, A. D. 1870.

ORLANDO B. POTTER. Witnesses:

W. L. BENNEM, JOHN RATHBONE, J r.

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