US408844A - Process of rolling iron or steel - Google Patents

Description

3 Sheets-8heet 1.

(No Model.)

7 A. J. MQXHAM. PROGESS OF ROLLING IRON 0R STEEL.

No. 408.844. Patented Aug. 18, 1888.

(No ModeL) 3 Sheets-Sheet 2.

A. J. MOXHAM. PROCESS OF ROLLING IRON 0R STEEL. 4

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Patented Aug. 13, 1889- No ModeL) a Sheets-Sheet a. A. J. MOXHAM. PROCESS OF ROLLING IRON 0R STEEL.

Patented Au 13, 1889.

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UNITED STATES PATENT OFFICE.

ARTHUR .I. MOXHAM, OF JOIINSTOIVN, PENNSYLVANIA.

PROCESS OF ROLLI NG IRON OR STEEL.

SPECIFICATION forming part of Letters Patent No. 408,844, dated August 13, 1889.

Application filed J annary 25, 1889x Serial No. 297,558. (No model.)

To aZZ whom it may concern.-

Be it known that I, ARTHUR J. MOXHAM, a subject of the Queen of Great Britain, and a resident of .Iohnstown, in the county of Cambria and State of Pennsylvania, have invented a new and useful Improvement in the Process of Rolling Iron or Steel, of which the following is a true and exact description, due reference being had to the drawings which accompany and form part of this specification, and in which similar letters denote similar parts.

Heretofore the process of rolling metals consisted in passing them through a pair of rolls grooved to the conformation desired. The piece is made to pass through said rolls by the adhesion or bite of the rolls when the rotary movement is given to the rolls. The piece is thus fed in and travels with a speed due to the surface velocity of the rolls.

I have discovered that I can produce adifference in extent of the action of the rolls upon a piece of metal passed through if I exert a pressure upon the piece in its passage through the rolls opposite in direction to that of the surface motion imparted by the rolls, instead of passing it through the rolls unchecked with the surface motion of the rolls.

M y improvement consists in exerting a pressure or force of any desired extent during the movement of the piece through the rolls and in a direction opposite to that of the surface motion imparted by the rolls. I carry out this process by adding to the ordinary system of rolls mechanism which will exert a force upon the piece during its passage through the rolls and in a direction opposite to that of the surface motion of the rolls, so that while the spreading and elongation of the piece are effected by the rolls the piece will not pass through the rolls simply with the surface motion imparted by the rolls. Various m echanisms can be used to resist the passage of the piece, one form of which is shown in this specification.

In the drawings, Figure 1 is a general side elevation showing a pair of forming-rolls of any desired conformation, the piece to be acted upon, and the mechanism by which the piece is acted upon by the desired resisting force. Fig. 2 is a side elevation in detail of the mechanism for exerting the desired resisting pressure or force on the piece during its passage through the rolls. Fig. 3 is an end elevation in the direction denoted by the arrows, Fig 2. Fig. 4 is a section on line 1 y, Fig.

This mechanism may be placed in front or in the rear of the roll-train.

N are the delWery-rolls, by the motion of which the piece is brought to the entrance of the forming-rolls.

D, Fig. 1, represents the mechanism for exerting the resistingpressure upon the piece inits passage through the rolls. II are the wheels upon which it is mounted; O, the rails upon which the wheels II travel.

A and L are two gripping-rolls suspended in bearings at one end of the machine. The roll A is slightly eccentric, while the roll L is set true. K K are the upper collars of these rolls, provided with a series of holes 70.

J is a rack at the side of the track 0, on which the resisting mechanism travels. a gear-wheel working into this rack J. On the shaft f of the gearwheel F is the bevelgear Q, working in the bevel-gear Q on the shaft Q At the upper end of this shaft Q is the bevel gear-wheel S, which works in the bevel-gear T on the shaft X. On this same shaft X is the gear-wheelY,\vl1ich works in the gear-wheel U on the shaft to. On this shaft u are the drum V and rope o, and at the end of the rope t is the hook 1:, which is connected to the weight E.

The operation is as follows: The piece it is desired to pass through the forming-rolls is acted upon as follows: (This piece is represented of the form B in the drawings, although it is evident that this invention is independent of any particular form or shape of the piece to be acted upon.) One end of the piece is lifted and inserted between the rolls A and L, and the operator, by means of a bar inserted in one of the holes 76, rotates the roll A until by its eccentricity it grips the piece to be acted upon. The piece is thus firmly attached to the resisting mechanism. The other end of the piece is then inserted between the form-, ing-rolls R R in the ordinary manner and the roll-train started in action. The movement of the roll-train. causes the piece to move through the roll, and the resisting mechan- Fisism, being firmly connected with the piece, moves forward upon the track 0. This movement of the resisting mechanism, by means of the action of the rack J upon the gear-wheel F and through the intermediate gearing hereinbefore described, winds the rope v upon the drum V, lifting the weight E, thereby providing the desired resisting force. \Vhen the piece has passed almost entirely through the roll, the resisting mechanism strikes the projection G, and the movement of the formingrolls causes the piece to escape from between the rolls A and L, and the weight E, being thus relieved, falls, reversing the movement of the gear and returning the resisting mechanism to its initial position. As may be seen, the piece passed through the forming-roll with a pressure exerted upon it opposite to that imparted by the surface motion of the rolls and the Weight E will cause the resisting mechanism to return to its initial position. The degree of pressure exerted upon the piece during its passage through the forming-rolls can therefore be easily varied by increasing or decreasing the Weight E. As maybe readily seen, the resisting mechanism can be placed in the rear of the roll, in which case the piece will push the resisting mechanism forward instead of pulling it, as herein set out, as shown at right-hand portion of Fig. 1.

By my improved process of rolling I am enabled to obtain different and improved results and to magnify the result of the roll action upon any given portion of the piece.

It is obvious that many difierent mechanisms may be used to carry out this process of rolling, and I do not intend to limit myself to the hereinbefore-deseribed mechanism or any particular mechanism.

Having now fully described my invention, What I claim, and desire to secure by Letters Patent, is-

An improved process of rolling metahwhieh consists in exerting a pressure or force upon the piece opposite in direction to that of the surface motion imparted by the rolls during the passage of the piece through the rolls.

In testimony of which invention I have hereunto set my hand, at Johnstown, Pennsylvania, this 18th day of January, 188.).

ARTHUR J. MOXIIAM.

Witnesses:

A. J. BRYAN, \Y. Mc'LAIN.

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