US83625A - Elliptic - Google Patents

Description

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'JOS E PH GATO HE L L OF RA'HWY', NE W 'JER'SE Y. team' Patent, No. 83,625, ma Nambe 3, y186s.

IMPRovnD MAGHINI: I'on BENDING nLLIPIfIc': SPRINGS.

The Schedule referred to in these LetterePatenl; and making part of the sau-ia.

Be it known that I, JOSEPH GATCHELL, of Rahway, Union county, New Jersey, have invented certain Improvements in Machines for Bending the Springs Employed between the Axles and Bodies of Wagons, Oarnages, 85o.; and I hereby declare that the following is afull and exact description ofthe same, reference being had to the accompanying drawings, and the` letters of reference marked thereon.

The machine consists of a bed-plate, T, supporting other side, a flanged gauge, l?, adjustable at any req'nired distance from the iixed ange orl stubs O.

Between this gauge P and fixed I iange or stubs O, the back or plates of a spring may belaidan d, by adjusting the gauge to the distance required between it' and the fixed liange or stubs, the width of tilespring `being bent will be given, '(say one and one-fourth inch for one and one-fourth-inch springs, or two inches for two-inch 'springs,) andthe plate or back of the spring will be kept straight sidewise, as it is bent by the machine ilatwise to the curve of the templet R. -f

At the middleof the length of/the templet is a pin, B, which is also adjustable sidewise, to make it correspond with the holes in the centres of springs of diiierent widths.

When the fixed ilange is-used atv O, in conjunction with the gauge P, notches may be made in the edges, 'or perforations through either or both of them, to

admit water freely from the side upon thespring, to

cool it.

The-spring K is bent, while hot, to the curve of the templet R byV two rollers, O and C', (said rollers being two of a series, hereinafter described and claimed,) which are so combined with the cross-head I that they have a motion (each of them) fromthe middle of the spring outward, (as it'lies on the templet, being being)v while the'weight-of the 'cross-head I rests upon them,

and continues its pressure upon them, while they bend the'v spring onthe templet. r

.After bending each plate of the spring, the crosshcad, withthe rollers, is lifted up, and a new plate is placedfon thepin B, which is then subjected to. the

action of the rollers and the weight of the cross-head, (as before describcd, thus conforming theb'ack plate of the spring to a `suitable vtemplet, and then conforming each successive plate not only to the templet upon which the back lies, but the plate preceding it on the templet, which it i's essential to have it fit neatly and closely. v

To effect the cooling of the successive plates, (as they are bent while hot,) a stream of cold water is drected on the plate, behind the roller, as it moves from the middle outward, and, after bending, water may be introduced through the notches at the side ilanges of the templet, or between the stubs O, to cool Vthe plates thoroughly, the notches greatly assisting in the introduction and circulation of 'the water.

-I employ, for mving the mechanism connected with the rollers C, a crank, G, which is carried by the cross-v head, and conveys motion, simultaneously to the two rollers, by the connections (F and E E, the` rolls being fixed at the ends of two levers, pinned to the cross- -head at H H, and ha ving a curved motion from those; centres.

To vary the throw of the crank, in order to adjust the. motion of the rolls to springs of diiierent lengths, the crank Gr may be made with several holes, at diierent'distances from the centre, in-which to insert the crank-pin.

To remove the springs readily from the templet after bending, a lifter, V, is provided in the top of the templet, that presses on the under side ofthe back of the spring, and lifts it enough to admit the tongs required to remove it. v

I make the rolls employed for bending springs of different widths in a series, (in respect to width,) hav'- ing them all of the same thiclmess at the hub, as shown at` W, (so as to t equally in the spaces at the ends oi the levers Y Y, by which they are carried,) but varying in width at the periphery, to snit the springs of different widths,

` Gla/ims.-

What I claim, and desire to 'secure by Letters Patent, is-

V1.- The combination, substantially as described, of the templet, rolls, bending-levers, and weight.

2." 'Ihe combination ,of the series of rolls with 'the bending-levers and templet, arranged substantially as described.

v JOSEPH GATOHELL.

Witnesses:

' Tnos. S. CRANE,

WILLIAM E. DODD.

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