US63494A - John g - Google Patents

Description

gleiten taten gemiti @ffice JOHN G. FOLSOM, OIF WINCHENDON, vMASSAOHUSE'ITS, AND W. CLARE ANDERSON, OF ST. LOUIS, MISSOURI.

Letters Patent No. 63,494, dated April 2, 1867.

IMPROVEMENT IN TREADLES.

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TO ALL WHOM IT MAY CONOERN:

Bc it known that we, JOHN G. FOLSOM, of Winchcndon, "Vorcestcr county, and Sta-te of Massachusetts, and W. CLARE ANDERSON, of the city and county of St. Louis, and State of Missouri, have invented a new and improved Treadle for Sewing Machines, etc.; and we do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawing, forming part of this specification, in whichi Figure l represents a side elevation of this invention.

Figure 2 is an end view of the same.

Figure 3 is a detached View of the sustaining plate.

Similar letters of reference indicate like parts,

This invention relates to a treadle attachment for sewing machines and for othervsmall machines, which attachment is so constructed that the machine to he operated can be placed on a common table, and by stepping with the foot in the treadle the desired motion can be effected. Said attachment is composed of a driving,r or balance-wheel, with a suitable clamping device and sustaining plate, in combination with an adjustable pitman or shackle-bar, pivoted stirrup, and adjustable elastic band, in such a manner thatby means of the clamp and sustaining plate the machine and balance-wheel can be secured to a common table at the proper distance apart, md after the shackle-bar is adjusted to the height of the table and the stirrup secured to the foot by means of the elastic band, motion can be imparted to thc machine Without further delay, and when the machine is not used it can be easily put away a'small compass.

A representsa balance or driving-Wheel, which has its hearing on a stud, a, projectingfrom a screw-clamp, B. This clamp is so constructed that it can be readily secured to a common table, as shown in the drawing, and in order to hold the bnlance-wheel and the machine C at the proper distance apart, a sustaining plate, is used, which is provided with two holes to receive corresponding studs projecting from the bottom surface of the bed-plate of the machine, and with two ridges, c, which straddle the'upper lipof the clamp B. It must be remarked, however, that the sustaining plate can be dispensed witl1,it` desired, and in that case it will be necessary to secure the machine to the table by a separate clamp, or the'driving-Wheel may be mounted on a shaft secured to some part ot' the machine or of its bed, so that only one clamp is required to hold the machine in position. D is the shackle-bar, which is suspended from an eccentric wrist pin, d, secured in one of the arms of the drivi1igwl1eelA. The length or" this shacklc-bar is adjustable, said bar being made in two parts which are united by-two or more screws, e, and provided with several holes, so that by shifting the screws to dierent holes the bar can be adapted to tables of di'erent height. By removing all the screws but one from the joint of the bar, said bar is rendered capable to be folded and to be packed away in a small compass. To the bottom end of the shackle-bar is hinged the stirrup E, to which is connected an elastic band, F. After the length of the shackle-bar has been adjusted, the toes of thev foot are passed through the stirrup, the band F is secured around the heel to prevent the toes from slipping out of the stirrup spontaneously, and by using the heel of the foot as the fulcrum, motion can be imparted to the driving-wheel in the easiest possible manner. This mechanism allows of a change in the position of the foot and limb when they become cramped and fatigued, after being confined for a length of time in one position, and for this reason it is oi particular advantage for sewing machines, where the operator is confined fol' Several hours at a time in the same position.

What we claim as new, and desire to secure by Letters Patent, is-

I. The adjustable shackle-bar D, with the hinged stirrup E, and band F,.in combination with the drivingwheel of a sewing machine or of any other small machine, and with a suitable clamp, B, constructed and operating substantially as and for the purpose set forth. y

2. The sustaining` plate I), in combination with the machine O, clamp B, Wheel A, shackle-bar D, and stirrup E, al1 constructed and operating substantially as and for the purpose described.

JOHN G. FOLSOM, W. CLARE ANDERSON. Witnesses:

v E. S. MERRILL,

A. M. TANNER, JNO. S. MYERS. SAMUEL A. COLLINS.

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