US361858A - Rolling-mill - Google Patents

Description

2 Sheets-Shet 1.

E. BOWEN.

ROLLING MILL.

(Nd Model.)

No. 361,858. Patented Apr 26, 1887.

:2 fir.

J/Zarzzeys.

N PETERS, Phalu-Ulhographer, Washington. 0,0.

(No'Model v 2 Sheets-Sheet 2.

' E. BOWEN.

- ROLLING MILL. No. 361,858. Patented Apr. 26, 1887.v

Wzizassass fizfanfzz- UNITED STATES PATENT OFFICEO ELIJAH BOYVEN, OF BAY VIEW, VISOONSIN.

ROLLING-MILL.

SPECIFICATION forming part of Letters Patent No. 361,858, dated April 26, 1887.

Application filed August 19, 1886. Serial No. 211,239. (No model.)

v I do hereby declare that the following is a full,

clear, and exact description thereof.

My invention relates to rolling-mills; and it consists in certain peculiarities of construction, as will be hereinafter described with reference to the accompanying drawings, in which Figure 1 represents a rear elevation, Fig. 2

a front elevation, and Fig. 3 a vertical trans verse section,of a set of improvements. r

Referring by letter to the drawings, A represents the vertical standards,and A the horizontal base, that form the main parts of a frame, having journaled therein a set of three rolls, B B B each of the latter being provided with a gear-wheel, 0, arranged to mesh one with another, said gear-wheels being actuated by a suitable driving-power.

Suitably supported in the frame and in front of the rolls is an inclined table, D, that supports a series of vertical guides, E, each of which has integral therewith or seen red thereto an incline, F, thelatter having their pitch at an acute angle to said table.

The table D leads to the passes a, formed by thelower and middle rolls, B B, and I prefer to make this table narrowest at that end of the rolls embodying my machine where the iron is first fed to the set,

and then increase this width in line with the several lower passes, a,as the opposite end of said machine is approached, these lower passes and the top ones, I), being formed by a seriesof collars, c, on the lower and upper rolls, B B said collars running in grooves d in the middle roll, B. I also prefer to cut away the outer extremity of that portion of the table D in front of the final one of the passes a, and for this cut-away portion substitute a series of friction-rollers, G, in order to facilitate the handling of the iron, said rollers having their bearings in an extension, 6, of the last vertical guide E and a suitable standard or series of vertical posts,H, the latter supporting an incline, F, similar to the ones F, an ordinary guide, H, that is supported by the middle roll, B, and a bracket, f, of the frame, being arranged to lead the iron from the final one of the upper passes, b, to said incline F, from whence it is discharged either to the floor of the mill or to another set ofrolls.

Supported by the lower roll,. B, and alongitudinal beam, I, at the rear of my machine are a series of removable guides, J ,that register with the lower passes, a, and have concave front faces concentric to the middle roll, B, said guides being provided with passages g for a suitable bar with which to' knock away such particles as may shiver from the iron during the operation of rolling, and these guides are also provided with loops 71,'arranged to engage a like bar when their removalis desirable or necessary. As the greatest strain comes upon the guide J, that corresponds with the first of the passes a, I may provide an additional support, J, for said guide.

The ends of the beam I are inserted in slots iinthe inner faces of the standards A, and supported on removable blocks K, that fit recessed brackets L, projecting from said standards, stay-pieces M being also inserted in the slots to hold said beam in place upon the blocks. In case of accident the blocks K can be readily knocked out to permit the beam to drop farther down in the slotsz' of the standards and corresponding recesses, i, in the brackets M, in order to change the position of the guides J. The beam I is also removably secured to the lower ends of guides N, the upper ends of the latter being fitted in the grooves d of the middle roll, B.

A longitudinal rod, 0, has its ends fitted in the upper part of the respective standards A, and forms a bearing for a series of looselyhung guides, I that depend from said rod and correspond in number to the passes of the rolls. The lower portions of these guides P have their inner faces concave and normally concentric to the middle roller, B,while their outer faces are flexibly connected by chains m, or other suitable means, to another longitudinal rod, Q that has its ends turned down to form hooks Ir, that engage eyes it on the standards A, and in case of accident, or for any reason it may be desirable to get at the rolls from the rear of the machine, it is only necessary to swing said guides up and over toward the front. The first two of the deto pins r, that project from the beam Lwhile' the remainder of said arms are provided with adjustable counter-weights T. The construc-' t1on ust described is the preferable one; but.

it is obvious that either springs or weights may be employed for all of the arms, both serving the purpose of keeping the guides down in their normal position with relation to the rolls, but at the same time'permitting said guides to have a yielding movement, the latter being essential to the proper working of my machine.

In the operation of my invention the slab or pile is fed to the first one of the lower passes, a, or at that end of the machine where the table D is narrowest, and by the action of the rolls B B is carried along against the stat onary guides J and up between the middle roll, B, and the depending guide 1?, that corresponds with said pass until it enters the first of the upper passes, b, and is then rolled out on the lncline F, that registers with this latter pass. From this first incline the slab or pile slides down onto the table D in line with the nent of the lower passes, a, and the above-descrlbed operation is repeated until said slab or pile has been carried through all the lower and upper passes in the entire set of rolls, and finally comes out upon the incline F, from whence it is discharged either to the floor of the mill or to another set of rolls.

The slab or pile, being short and thick when first fed to the rolls, will not always reach the first one or two of the upper passes, 12, and for i that reason the springs S are employed to hold the first two of guides P down to their normal position, and at the same time allow the latter to y1eldenough to prevent the iron from being obstructed in its passage. The frictionrollers 10 at the lower ends of the first two guides P assist the movement of the slab or plle in its upward travel, and at the same tlme prevent the latter from catching against the lower end of said guides. After the first two guides have been passed the slab or pile has materially lessened in thickness and increased in length, so that as itis run through the remainder of the lower passes, a, it will more readily follow the concave faces of the corresponding guides, JP, and ordinarily the counter-weights T will be sufficient to hold said guides P down to their work, and at the same time allow enough yield to prevent the iron from crimping.

By the employment of a set of rolls provided with the accessories above described I am enabled to economize labor by doing away with the operatives usually engaged at the rear of such machines to lift and feed'the slab 0r pile to the passes 12 after it has come through the ones a of the set, while at the sametime aftersaid slab or pile has been fed to the first pass it automatically feeds itself back to the front and slides to the next of the lower passes, this operation being continued until it finally comes out upon the last incline of the machine for disposal, as above described, thus facilitating the work of what is termed roughing, andgetting the slabs or piles down to the finishing-rolls ina much less time than is ordinarily the case.

Having thus fully described my invention,'. what I claim as new, and desire to secure by Letters Patent, is

1. Aset of rolls operativein a suitable frame and an inclined table supported in the frame to lead tothe lower passes of the rolls and provided witha series of vertical guides, each of the latter having integral therewith or secured thereto an incline that has its pitch at ,an acute angle to the table, and the last vertical guide provided with an extension, in com- 'bination with a series of friction-rollers journaled in said extension and a suitable standard or series of vertical posts, and an incline supported by said standards or posts, as set forth. 7

2. A set of rolls operative in a suitable frame, in combination with an inclined table supported in said frame and leading to the lower passes of the rolls in front of the machine, a series of vertical and inclined guides supported by the table, a series of stationary rear guides having concave inner faces, a corresponding series of loosely-hung rear guides, also provided with concave inner faces, and means, substantially as described, for holding the latter guides in operative position while permitting a yielding movement thereto, as set forth.

3. A set of rolls operativein asuitable frame,

in combination with an inclined table supported in said frame and provided with suitable guides leading to the lower passes of the rolls, a series of stationary rear guides having concave inner faces, a corresponding series of loosely-hung rear guides, also provided with concave inner faces and having rearwardlyextended arms, and springs or weights connected to these arms to retain the latter guides in operative position while permitting a yielding movement thereto, as set forth,

at. Aset of rolls operative in a suitable frame, in combination with an inclined table provided with suitable guides leading to the lower passes of the rolls, a series of stationary rear guides having concaved inner faces, an adj ustable beam arranged tosupport the outer ends of these rear guides, a corresponding series of loosely-hung rear guides, and means, substantially as described, for holding the latter guides in operative position while permitting a yielding movement thereto, as and for the purpose set forth.

5. A set of rolls operative in a suitable frame,

in combination with an inclined table provided with suitable guides leading to the lower passes of the rolls, a series of stationary rear guides having coucaved inner faces, a permanent longitudinal rod secured at its ends to the standards of the frame, a series of looselyhung rear guides depending from said rod and also provided with concaved inner faces, another longitudinal rod detachably connected to the standards and flexibly united to the latter guides, and means, substantially as described, for holding these guides in operative position while permitting a yielding movement thereto, as and for the purpose set forth.

6. Aset of rolls operativein a suitable frame, in combination with an inclined table provided with suitable guides leading to the lower passes of the rolls, a series of stationary detachable rear guides concaved upon theirinner faces and provided with passages for asliver bar, a corresponding series of loosely-hung rear guides, also provided with concave inner faces, and means, substantially as described, for holding the latter guides in operative position vided at theirlower ends with friction-rollers,

and held in operative position by suitable" springs, and the latter ones similarly heldby means of counter-weights adjustable on then" In testimony that I claim the foregoing I have hereunto set my hand, at Milwaukee, in the county of Milwaukee and State of Wisconsin, in the presence of. two witnesses.

ELTJ AH BOWEN.

Witnesses:

H. G. UNDERwooD, N E. OLIPHANT.

4 respective arms, as set forth.

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