US98807A - Improved apparatus for rolling metals - Google Patents

Description

4 Sheets-Sheet 1. G. H. SELLERS. APPARATUS FOR ROLLING'MEI'AL.

.Patented Jan. 1'1, 1870.-

4 Shet's-Sheet 2.

G H SELLERS APPARATUS PoR ROLLINGr METAL.

No. 98,807. PALAALQAJAA. 11., 1870.

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GJH. SELLERS. APPARATUS POR ROLLING METAL.

Noi. 98,807. Patented-Jan. 11, 1870);

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4 Sheets- Sheet 4. G. H. SELLERS. y APPARATUS POR ROLLING METAL;

No. 98,807. .Patented Jan. l1, 187D.

UNITED STATEsPAT-ENT OFFICE.

` GEORGE E. SELLE-Rs, OE WILMINGTON, DELAWARE IMPROVED APPARATUSFORROLLING METALS.

Specification forming part of Letters Patent No. 98,807, dated January 1l1870.

To all whom it may concern: i

Beit known that I, GEORGE II. SELLERS, of Wilmington, 4in the county of New Castle and State of--Delawara have invented certain new and-useful Improvements in Roll-Trains for Rolling Metals, of which the following is a full, clear, and exact description.

In rolling metals into rectangular bars or Vinto irregular shapes, such as I-beams, channels, Ts, dre., by the methods heretofore einployed, the rolls are placed one above the other7 and have their surfaces cut into groovesy which form counterparts of the finished bars, and are such in size and number as gradually to reduce the shaped pile to the finished bar. 4'Lhese grooves are frequently-so numerous that two sets of rolls v(one set called roughers7 and itics,'thereby causing the iron, as 4it passes through the rolls, to slip more or less, and

rendering it liable to be torn or buckled.

For transferring the pile from groove to groove under this system, suspended-hooks are so arranged as to be operated by the work-` man.V f'.

The object of my invention 1s to diminish the number of grooves heretofore required for. finishing theV shaped bar or beam, and also to save much-of the handling incident to the system above mentioned; and my improvement consists, first, in combining, shaping, and compressing rolls with qmechanism whichy renders each roll adjustable' relatively yto a common axial'line or center, substantially as hereinafter set forth; second, in combining adjustable horizontal shaping-rolls with adjustable vertical compressing-rolls and supporting friction-rolls, both the compressing-rolls and the supportiiig friction-rolls being mounted in a common adjustable frame arranged between the be'arin ofthe shaping-rolls.

In the accompanying drawings, which make other fluid.

part of this speeiication, Figure l represents a plan or top View of so much of my improved `roll-train as is necessary to exemplify the invention herein claimed; Fig. 2, a Vertical transverse section through the same; Fig.v 3, a view in elevation of the same as seenfrom one end; Fig. 4, a view ofa portion of the mechanism, showing themode of oounterbalancin g the pistons; Fig. 5, a horizontal transverse section through the housing at the line A B of Fig. l, and Fig. 6 a similar section at the line C D of Fig. 3 Fig. 7, a horizontal section through the machine at the line rv :v of Fig. 2.

Upon bed-plates a c', solidly secured inany proper well-known way, are mounted vertical housings I) b', which are in turn iirmly united with horizontal housings@ C'. These housings dift'er from those ordinarily used in having in place of 4screws for adjusting the rolls cylinders containing suitably-packed pistons d, movin g'water-tight in the cylinders and acting on the roll-necks by means of water or The cylinders are connected by ducts in the housings, or by external pipes, with chambers containing pistons e of smaller area, whose stroke is to that of the larger pistons as the differences of their areas.

` The upper shaping-rollrG, and the two side compressing-rolls I `If are respectively counterweigh-'ted by weighted levers f,g Fig. 4, and bear -upon their correspondingV pistons d in such manner that any movement of the smaller pistons e would, by `displacing the fluid, cause their corresponding pistons d to move relatively, thus moving its roll toward or from "the common center and correspondingly increasing or diminishing the area of the aperture between the rolls through which the pile passes. In this instance the horizontaler shaping rolls G` G are shown asmounted in strong bearings, adjustable vertically in the housings b. The driving-poweris applied to these rolls in any of the usual wellknown ways. The compressing or vertical rolls I I are mounted in bearings adjustable horizontally in the bea-rings C, and are revolved by friction upon the pile in. passing through the rolls, the principal function Ot' the vertical rolls being' to prevent the lateral Vspread of the metal.

As the vertical rolls are located between the shaping-rolls, their bearings are necessarily too shortl to sustain, of themselves alone, the pressure to which they are subjected. To adapt them to sustain this pressure, I support these rolls I I by means of friction-rolls J J which have their bearings in the same ad j ustable frames as the rolls I I', and are arranged at such a distance apart that the journals of the horizontal rolls G G' may' pass between them, thus securing firm bearings for all the rolls. (See Figs. 2 and 7.)

The small pistons c may be connected by the cross-heads H, to which screws, racks, and pinions, or other equivalent devices, may be attached, to enable the workmen to operate all the pistons simultaneously or successively.

The drawings lrepresent a machine having grooved shapingrolls, adapted to rolling hexagonal bars, the method of doing which is as follows: The pistons ebeingretraeted by theoperator, 4the rolls are thereby opened and ready to receive the heated pile. The rolls G G being rotated in the proper direction, the pile, whenl placed in the groove, will be drawn through between the rolls, the pile itself revolving the rolls I I by friction. After the pile has been passed through the rolls the workman forces the small. pistons c into their respective chambers, which movement causes the fluid contained in the chambers to force out the large pistons d from their chambers, thus causing all the rolls simultaneously to converge toward a common center, and reducing the aperture between the rolls.

The adjustment of either or any of the rolls relatively to the others may be regulated independently by adjusting the position of the corresponding cross-heads, 'and thus increasing or diminishing the 'range of movement of the corresponding pistons.

When the rollshave been adjusted and the ,aperture between them thus reduced, their movement is reversed in any well-known Way--l for example, by simply reversing the engine, or by reversinggear,'and the pile drawn back through the rolls to the side from which it first started. This process of diminishing or contractin g the aperture between theV rolls and repassing the pile through them from side to side is repeated until the bar is finished.

After each passage through the rolls the pile is turned so as to present a new'angle of the hexagon to the action of the shaping-rolls.

By changing the rolls GG for others having grooves of proper outline, I-beams, chair' nels, or other shaped bars may be produced; or for rectangular bars it is only necessary to substitute plane-surfaced shapiiigrolls.

One great advantage of a mill of this construction'is that, as the pile 'simply traverses back and forth through the same grooves until finished, suspended hooks are dispensed with,

Iprefer the hydraulic arrangement for heavy work, but do not confine myself to that device v for adjusting the rolls, as they may be regulatedy by screws or other devices.'

, I am aware ythat roll-trains have heretofore been made 'adjustable in various ways; but such adjustments have always involved a change in the, axial line of movement of the pile or ingot in its passage through the rolls. I am, however, not aware that a roll-train ever heretofore has been Vmade so adjustable that all the rolls could be moved toward or from each other to vary the area of the opening between them withou't changing the axial line of movement of the pile or ingot in its passage through the rolls, and this capability of rolling in a const-ant axial line is the distinguishing characteristic of my invention. v y

What I claim as my invention, .and desire to secure by Letters Patent, is-

l. The combination, with the compressing,-

rolls and the shaping-rolls, all having -their axes in the same vertical plane, of n'nechanis'mv to move all of said rollstoward or from acommon center or fixed axial line, as andfor the purpose set forth.

2. The combination, with the adjustable horizontal shaping-rolls, of the vertical compressing-rolls and their supporting friction-rolls, thecompressing and friction rolls beinglocated between the bearings of the shaping-rolls and mounted in a common adjustable frame, substantially as s et forth.

I testimony whereof I have hereunto subscribed my name.

i GEORGE H. SELLERS.

Witnesses:

ELI GARRETT, WM. B. WIGGINs.

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