US568717A

US568717A - Sewing-machine treadle

Info

Publication number: US568717A
Authority: US
Publication date: 1896-09-29
Anticipated expiration: 1913-09-29

Description

(No Model.) 2 Sheets-Sheet 1.

P. DIEHL & T. KRAEMER. SEWING MACHINE TRBADLB.

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(No Model.)

-2 sheqts-sleet 2.. P. DIBHL E T; KRABMER. l SEWING MACHINE TRBADLB.

No. 568,717. Patented sept. 29, 1896.

/-ZQMMM @gigi/W 'NEK PHILIP DIEHL AND THOMAS KRAEMER, OF ELIZABETH, NEW JERSEY PATENT rricn.

ASSIGNORS TO THE SINGER MANUFAOTURINGVOOMPANY, OF NEV JERSEY.

SEWING-MACHINE TREADLE.

SPECIFICATION forming part of Letters Patent No. 568,717, dated September 29, 1896.

Application filed April 28, 1896.

To @ZZ whom it may concern,.-

Beit known that we, PHILIP DIEHL and THOMAS KRAEMER, citizens of the United States, residing at Elizabeth, in the county of Union and State of New Jersey, have invented certain new and useful Improvements in Sewing-Machine Treadles, of which the following is a specification, reference being had therein to the accompanying drawings.

Our invention has for its object to provide a treadle mechanism for sewingmachines and the like by means of which an operator is enabled to drive a machine at a high speed and with a minimum expenditure of power, and in which all of the treadle mechanism and also the driven crank-shaft will be supported by the brace which connects the legs or side frames of the stand or table. To this end we provide the said brace with suitable supports or lugs on which a crank-shaft hav ing two cranks anda pulley or driving-wheel is mounted, preferably by center screws, and to the lower part of the said brace we pivot two treadle-levers, which are connected by two pitmen with the two cranks of the driving-shaft. The treadle-levers are preferably provided with pivoted or rocking foot-pieces having convex and corrugated upper surfaces.

In the accompanying drawings, Figure lis a front elevation of a sewing-machine stand embodying our invention. Fig. 2 is a plan view of the same with the table omitted. Fig. 3 is a detail section on line 3 3 of Fig 2.

A denotes the legs or side frames of the stand, supporting the table B, on which the sewing-machine or other similar machine to be driven is mounted. C is the cross-brace, bolted at its upper and lower ends to the said legs or side frames and serving to hold the latter strongly and accurately in place. The brace O is provided at its rear side with rearwardly-projecting arms or lugs c, by which is supported, preferably by center screws c", the double crank-shaft carrying the driving wheel or pulley cl.

E denotes the twin treadles or treadle-levers, pivotally supported in the lower part of the brace C, said levers, as herein shown, being hung on center screws c5 and on a double Serial No. 589,451. (No model.)

cone-pointed pin c2, held in a lug c3 on the lower cross-rod c4 of the brace, and being preferably provided at their forward or operating ends with pivoted foot-pieces e, having corrugated and convex upper surfaces. The

rear arms of the treadle-levers are connected will always maintain their relative positions unaffected by any springing or warping of the table B, which might disturb such relative arrangement were the double treadles or the crank-shaft mounted in the legs or side frames of the stand, or on rods or parts connected therewith.

It will also be seen that the arms or lugs c', projectingrearwardly from the brace O about midway of the height thereof, afford means for supporting the double crankshaft clear of the brace, so that there will be room for said shaft to work behind said brace, and without requiring said shaft to be lowered to a point which would be objectionable.

Having thus described our invention, we claim and desire to secure by Letters Patentl. The combinationwith the legs or side frames A, and the brace O connecting the same and provided with the rearwardly-projecting arms or lugs c, of the crankshaft supported by said arms or lugs behind and clear of said brace and having the wheel or pulley d and two cranks d, the two treadle-levers E, mounted in the lower part of said brace, and the pitmen connecting said levers with said cranks.

2. The combination with the legs or side frames A, and the brace O connecting the same and provided with the rearwardly-proj ecting arms or lugs c, of the crank-shaft supported by said arms or lugs behind and clear of said brace and having the wheel or pulley cl and two cranks d', the two treadle-levers E, mounted in the lower part of said brace, and

the pitlnen connecting said levers With said cranks,said treadle-lcvers havin g the pivoted foot-pieces e.

3. The combination with the legs or side frames A, and the brace C connecting the same and provided With the rearWardly-pro jectng` arms or lugs c, of the crank-shaftsupported by said arms or lugs behind and clear of said brace and having the Wheel or pulley d and two cranks d', the two treadle-levers E mounted, in the lower part of said brace, and

the pitmen connecting said levers With said cranks, said tread1e-levers having the pivoted foot-pieces e having convex and corrugated or roughened upper surfaces.

In testimony whereof We affix our signatures in presence of two Witnesses.

PHILIP DIEIIL.

THOMAS KRAEMER.

lVitnesses:

HENRY CALVER, JOSEPH F. J AQUITH.