US337230A - Machine for rolling car-wheels - Google Patents

Description

(NoModel.)

T. W. BEAN.

MACHINE PQR ROLLING GAR WHEELS.

'Patented Mar. 2, 1886.

UNITED STATES PATENT OFFICE.

`fIHlilODORIl WV. BEAN, OF NORRISTOVN, PENNSYLVANIA.

MACHIN FOR ROLLING CAR-WHEELS.

SPECIFICATION forming par'. of Letters Patent No. 337,230, dated March 2,1886.

Application filed November 5, 1885. Serial No; 181,873. (No model.) I

To all whom it may concern:

Be it known that I, THEoDoRE W. BEAN, of Norristown, county of Montgomery, and State of Pennsylvania, have invented an Improvement in Machines for Rolling Oar-'Vheels, of which the following is a specification.

My invention has reference to the manufacture of car-wheels; and it consists in suitable apparatus for rolling and compressing a cast or forged wheel or other similar object into a finished condition, all of which is fully set forth in the following specification, and shown in the accompanying drawings, which form part thereof.

Oarwheels as heretofore commonly constructed have been made of cast-iron with chilled surfaces,or of cast-iron and paper com bined. A cast-iron wheel, owing to the low strength of cast-iron,must be made excessively heavy to withstand the wear and tendency to breakage. To increase this strength near the hub, it is customary to form two webs uniting near the flange and formed with ahollow space between them, which, while it increases the strength, forms the equivalent of a soundingbox and creates a great deal of noise. The enormous weight ofthe wheel, aside from the objectionable noise it creates, produces a great deal of unnecessary wear upon the rails, caus-V ing their unnecessarily quick destruction. In addition to the foregoing, a cast-iron carwheel must be constantly watched by tapping 4 or forged cast-steel car-wheel may be rotated steel car-wheel has a much longer life; in ropressed into shape,requires no finish or turn-v ing,such as required upon cast-iron car-wheels. From the lightness of the wheel, due to the small relative amount of metal required, and1 from the fact that it can be given a highly-finished surfacein the dies, this car-wheel, while,

being so 'superior to a cast-iron car-wheel, is, nevertheless, much cheaper. Its lightness increases its own life, as well as that of the' rails, and there is no necessity for a continual examination of the wheels, as is now the case.

In the drawings, Figurel is asectional elevation, on line x x, of a rolling-mill for rolling car-wheels and similar articles; and Fig. 2 is a plan view of same.

A is the plate. B is the housing. E is the receiving die or form, and J are the compressing-rollers. The die E has its upper face depressed, as at H, for the reception of the cast-steel ingot I, which in the drawings is shown as a car-wheel; but in practice the rolling-mill is suitable for any form of similar cylindrical and disk-shaped objects, and this die is supported upon anti-friction balls D, which are placed in annular grooves C, and may be pivoted, as at e. In place of the balls D, suitable supporting-wheels may be employed, as such are considered equivalents.

The die E is provided with gear-teeth F, with which a pinion, G, meshes and by which it is rotated. The said pinion being revolved by the power-shaft g for car-wheels, there would be a central stud, h, around which the car-wheel would be rolled, and which would form the hole for the reception of the axle.

N is a rollcarrying frame, and may be raised and lowered by a screw, O, which works through the upper part of the housing B. This frame N isvprevented from turning by guide-lugs u, and its lower and central part is provided with a stud, M, to which a ring, l, is journaled, and from which the three shafts or bearings I extend, preferably somewhat obliquely upward, and are secured at their outer ends to the frame N. Journalcd upon these shafts I are rollers J, whose peripheries are made to conform to the shape to be given to the object to be rolled. These rolls are preferably formed more or less coni- Ycal, and may be made in one or several sections, the latter being indicated at K, Fig. 1, so that each section may revolve independent of the other,to reduce as much as possible the tendency to rubbing. The outerends of these rolls are formed with the cutting-edge k, for the purpose ofltrimming the outer flange of the wheel after the metal has been rolled from the center outward. Three rollers are shown, though it is evident that one or more may be used.Y

The cast-steel ingot, before being placed in the die E, is previously heated. thus reducing the metal to a state in which it is easily caused to ow under pressure, and whereby the rolling action Vis facilitated.

Having nowdescribed my invention, what I claim as new, and desire to secure by Letters Patent, is

l. In a rollingmill, the combination of the revolving die E, having its upper surface formed to receive the previously-cast article to be rolled, with a stationary frame, N, and loose compressing-roller J, journaled therein, substantially as and for the purpose specified.

2. In a rolling-mill, the combination of the revolving die E, having its upper surface formed to receive the previonslycast article to be rolled, with a stationary frame, N, and loose compressing-roller J, journaled therein, suitable guides to prevent said frame from revolving, and screw O, to raise or lower the said fame and its roller, substantially as and for the purpose specified.

3. Ina rolling-mill, the combination of the revolving die E, having the part H, to receive the article to be rolled, and gear-teeth F,with pinion G, anti friction balls D, stationary frame N, carrying the rollers J, suitable guides or stops to prevent said frame from revolving, and screw O, to adjust said frame vertically, substantially as and for the purpose specified.

4. In a rolling-mill, the combination of the revolving die E, having its upper surface formed to receive the previously-cast article to be rolled, with a stationary frame, N, and loose compressing roller J, journaled therein, the said rolls being made more or less conical and formed in sections K, substantially as and for the purpose specified.

5. ln a rolliug-mill,the revolving die E,hav ing its upper part formed at H to conform tothe shape of one side of a car-wheel, and provided with stud h,in combination with stationary rollers J, extending from the center of the die outward, and having their peripheries so shaped as to form the other face of the car-wheel, and a frame or support for said rollers, to prevent their rotation about the studs h, and feeding devices, substantially as described, to move said rollers to or from the die E, substantially as and for the purpose specified.

Y In testimony of which invention I hereunto set my hind.

lTHEO. W. BEAN. Witnesses:

J. I. HALE J ENKINs, J oHN CUsrER.

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