US1237705A

US1237705A - Treadle.

Info

Publication number: US1237705A
Application number: US12778816A
Authority: US
Inventors: John A Ryden
Original assignee: Individual
Current assignee: Individual
Priority date: 1916-10-26
Filing date: 1916-10-26
Publication date: 1917-08-21
Anticipated expiration: 1934-08-21

Description

J. A. RYDEN.

TREADLE.

APPLICATION FILED 00T. 26. I9I6.

1 ,-237,705. Patented Aug. 21, 191,7.

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TREADLE.

APPLICATION HLED ocT.26,191e.

Patented Aug. 21., 1917.

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JOHN A. R'YDEN, or MADISON, WISCONSIN.

rnEADLn Specification of Letters Patent.

Patented Aug. 21, 1917-.

Appucation filed october 26, 1916. serial No. 127,788.

T0 all whom t may concern.'

Be it known that I, JOHN A. RYDEN, a subject of the King of Sweden,y residing in the city of Madison, county of Dane, and State of Wisconsin, have invented certain new and useful mprovement-s in Treadles; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will en-able others skilled in the art to which it appertains to make and use the' same.

The present invention relates to treadles for sewing machines, turning lathes, jig saws and other like foot-power machinery.

It is an ob] ect of the present invention to increase the operators control over the moving parts, to lessen fatigue of the operator, to provide means for varying the treadling movement of the operators feet, and particularly to secure these ends by a simple mechanism which, in one embodiment, may be attached to treadles now in common use.

` To attain these objects, and'others hereinafter set forth, or inherent in the construction disclosed, the treadle of the present invention is provided with a toe-piece which extends substantially across the front edge of the treadle and 'engages or lits over the tips ofthe operators shoes. |This t0e-piece, which is preferably in the form of a straight bar detachably clamped to the treadle, may be faced with rubber, or the like, and while aording a secure grip on the operators shoes, does not needlessly restrict lateral movement lof the shoe tips nor produce undue pressure on the shoevamp.

In the accompanying drawings*d Figure 1 is a perspective view of one embodiment of the invention applied to a sewing machine v A Figs.2 and 3 are, respectively, a front elevation and a sideY elevation of the toepiece of Fig. 1, and Fig. 4 is a section therethrough on the line 4 4 of Fig. 2;

Figs.V 5 and 6 are, respectively, a front elevation andan end elevation of a modified form of treadle attachment with the treadle shown in outline; and y y Figs. 7 andL 8, are, respectively, a plan view and an end elevation of a further modification, wherein the toe-piece is cast integral with the platform ofthe treadle.

In the embodiment illustrated in Figs. 1 to 4, inclusive, the treadle comprises va platform 1 mounted near its center on pivots 2 and 3 and connected at one of its front corners with a pitman 4 which is connected to a crank 5 to actuate a shaft 6 and a fly wheel 7, over which the belt of the machine may pass, all in accordance with ordinary sewing machine construction.

The lower or rear edge of platform 1 is provided with a rim or rail 8 to engage the heels of the operators shoes and prevent them from slipping backward olf the treadle.

At the front edge of the platform 1 is a straight toe-piece extending substantially across the front edge of the treadle and comprising a rectangular bar 9 which may be of metal, such as steel, and may be resilient, and which is preferably enveloped in a protective covering, such as a cloth envelop 10, faced on one side with a rubber cushion 11 and secured to the metal bar as by rivets properly distributed. y

As a means for holding this metal bar in proper relation to the platform of the treadle, its ends are provided with clamping means in the form of brackets 12 and 13, `each having a .jaw 14 (Fig. 2) and a set screw 15 for detachably and adjustably embracing the edge of platform` 1, and each having an upstanding lug 16 with an inclined longitudinal recess, wherein an end of the bar is received and is held under a spring 17 which is positioned in said recess and encircles a bolt 18. This bolt traverses said recess and passes through a hole in bar 9 vso that the bar is free to slide along the bolt when spring 17 is compressed. With the yconstruction above described, the operators shoes may rest squarely on platform 1y with the heels resting against and guarded by rail 8, and the tips of the toes engaging the rubber cushioned lower 1nclined face of the toe-piece at the front of the treadle. End clamps 12 and 18 may be so adjusted along the edge of platform 1 as to give the most appropriatel distance between the cross-bar and the heel rail while leaving the operators feet free to toe out or toe in, as may be most comfortable. The operators feet can also be shifted from one side to the other when desired, and as they toe-piece engages only the tips of 'the 'shoes where they are stifened and reinforced by the toe boX, there is no uncomfortable pressure over the toes and no danger of chaling 'the operators feet.

T he o'oerators shoes have no vchance to.' i i l slide forward over the front edge'of the treadle, and the treadle is under more complete control of the operators feet, particularly when starting or stopping the machine, because of the positive engagement of the tips of the operators shoes with the toe piece at the front edge of the treadle. At the same time the operator has full freedom in moving` his feet in any way desired.

`When desired, the opel ator may withdraw the shoe tips from beneath the inclined toe piece, and by moving his feet forward, engage only with the top edge of the bar, thereby changing the angle of movement at the ankle and thereby in a sense finding relief from the fatigue of treadling.

In the modification illustrated in Figs. 5 and 6, the coiled springs are omitted and the kbolts 18 secure the toe piece rigidly within the inclined recess of the clamp by which it is attached to the t-readle. In this modification, the cloth envelop is omitted and the metal bar 9 is completely envelopedy in a rubber covering 19 which serves not only as an envelop, but as a cushion for engagement with the shoe tips.

In the modification illustrated in Figs. 7 and 8, the treadle l has cast integral with the side edgesthereof, a pair of brackets 20 and v21,.between which and integrally therewithextends the metal toe piece 22. The lower inclined face of this toe piece is covered with a strip` of rubber 23 held in place by rivets 24, or the like, and it is against this rubber strip thatthe tips of the operators shoes bear when the treadle is in operation.

I claim Y 1. A treadle having a straight toe-piece extending substantially across the front edge thereof and being inclined with respect to said treadle to fit over the tips of the operator-s shoes; substantially as described.

2. A treadle lhaving a toe-piece, comprising a straight metal bar extending substantially across the front edge of said treadle and being inclined; .with respect to said treadle and having a cushioned face adapted to t over the tips of the operators shoes; substantially as described.

3. A treadle having a yheel rail at one edge and atoe-piece at the other edge, said toe-piece comprising avstraight bar extending substantially across the front edge of said treadle and inclined with respect thereto so that it will fit over the tips onlyof the operators shoes, and said bar having a rubber facing where it is to contact with the operators shoes; substantially as described. i .y

4. The combination with a treadle, of Va toe-piece therefor comprising a straight bar extending substantially across the front edge of said treadle and in inclined position to fit over the tips only of the operators shoes,

and clamping means detachably secured to said treadle and holding said bar in position; substantially as described.

5. In an attachment for the treadle of a sewing machine or the like, the combination of a pair of clamps each having a jaw and set screw for detachable connection with the edge of said treadle, and each having an inclined recess, a bolt traversing each of said recesses, coiled springs encircling said bolts, a straight resilient metal bar having perforate ends in said recess and adapted to slide on said bolts when said springs yield, said bar being of a length to extend substantially across the front edge of said treadle and in inclined position to engage with the tips only of the operators shoes.

6. In an attachment for the treadle of a sewing machine or the like, thecombination of a pair of clamps each having a jaw and set screw for detachable connection with the edge of said treadle, and each having Van inclined recess, a bolt traversing each of said recesses, coiled springs encircling said bolts, a straight resilient metal barhaving perforate ends in said recess and adapted to slide on said bolts when said springs yield, said bar being of a length to extend substantially across the front edgel of said treadle and in inclined position to engage with the tips only of the operators shoes, said bar being enveloped with a protective covering having a rubber surface for: contact with said shoe tips; substantially as described.

7. In a treadle for sewing machines and the like, the combination of a platform with a toe-piece extending substantially across the front edge of said platform and adapted to engage the tips only of the operators shoes, said toe-piece comprising'a straight bar having a cushioned surface for engagement with the operators shoes, and means for detachably securing said bar to said platform, said means comprising clamps at each end of said bar, said clamps leachhaving means for attachment to the side, of said platform and lhaving an inclined recess in which the end of said bar is received, and a bolt holding the end of said bar in said recess; substantially as described. f

8. In a treadle for sewing machines and the like, the combination-of a platform pivotally mounted near its center, a toe-piece extending substantially across the front edge bar, said clamps each having means for attachment to the side of said platform and having an inclined recess in which the end of said bar is received, and means for detachably and yieldingly holding the end of said bar against the inclined bottom of said recess.

9. In a treadle for sewing machines and the like, the combination of a platform pivotally mounted near its center, a toe-piece extending substantially across the front edge of said platform and adapted toengage the tips only of the operators shoes, said toepiece comprising a straight resilient bar enveloped in a protective covering having a rubber surface for engagement with the operators shoes, and means for detachably securing said bar to said platform, said means comprising clamps at each end of said bar, said clamps each having means for attachment to the side of said platform and having an inclined recess in which the end of said bar is received, a bolt traversing said recess and passing through a hole in said bar to permit sliding movement of the same along the bolt, and a spring yieldingly holding the end of said bar against the inclined bottom of said recess.

10. In a treadle for sewing machines and the like, the combination of a platform pivotally mounted near its center and having a rail along one edge to serve as a heel guard, a toe-piece extending substantially across the other edge thereof and adapted to engage the tips only of the operators shoes, said toe-piece comprising a straight resilient metal bar enveloped in a protective covering having a rubber surface for engagement with the operators shoes, and means for yieldingly and detachably securing said bar to said platform, said means comprising clamps at each end of said bar, said clamps each having a jaw and set screw for attachment to the side of said platform and having an inclined recess in which the end of said bar is received, a bolt traversing said recess and passing through a hole in said bar to permit sliding movement of the same along the bolt, and a spring encircling said bolt and yieldingly holding the end of said ba-r against the inclined bottom of said recess.

In testimony whereof I afx my signature.

J. A. RYDEN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. C.