US1544572A - Rolling-mill housing - Google Patents

Description

July 7, 1925.

J. R. GEORGE ROLLING M ILL HOUSING N Filed Dec. 4, 1922 2 Sheets-Sheet l fiaeyzi ori I Jsvovwc Georsc. a a. %%M4/- azzmvz y J. R. GEORGE ROLLING MILL HOUSING Filed Dec. 4. 1922 July 7, 1925.

2 Sheets-Sheet '2 attorney Patented Julyv7, 1925.

UNITED STATES PATENT OFFICE.-

J'EROME R. GEORGE, OF WORCESTER, MASSACHUSETTS, ASSIGNOR TO MORGAN CON- STRUCTION COMPANY, WORCESTER, MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS.

Application filed December 4, 1922.

To all whom it away concern:

Be it known that I, JEROME R. GEORGE, a citizen of the United States, residing at Worcester, in the county of Worcester and Commonwealth of Massachusetts, have invented a new and useful Improvement in a Rolling-Mill Housing, of which the following, together with the accompanying drawings, is a specification.

The present invention relates to rolling mills, with particular referencegto an improved construction of the housings which provide support for the necks or gudgeons of the cooperating rolls. The invention re- 1 sides inthe features of construction herein-' after more fully set forth, reference being had in this connection to the accompanying drawings, wherein- Fig. 1 is a side view of a roll housing having my invention applied thereto.

Fig. 2 is a transverse sectional view of the parts shown in Fig. 1.

Fig. 3 is a side view struction.

Fig. 4 is a transverse sectional view of the parts shown in Fig. 3.

of 'a modified con- Like reference characters refer to like parts in the different figures.

Referring first to Figs. 1 and 2, the invention is shown applied to a roll housing which consists, as usual, of opposite upright sides 1, 1, rising from a suitable base 2 and supporting between them, transversely, a lower roll 3 and an upper roll 4. The necks or gudgeons 5, 5 of lower roll 3 rest on suitable bottom bearings 6, 6, each disposed and secured in the lower end of a vertical recess or opening provided by housing side 1. In a like manner, the necks or gudgeons 7, 7 of upper roll 1 find support in lower bearing blocks 8, 8, the latter being seated on ledges or shoulders 9, 9 provided by the housing sides. 4

On account of the relatively large diameters of the roll necks or gudgeons 5 and 7, and more particularly in View of the necessity, from time to time, for turning down the roll diameters, thus bringing their axes even closer together, it is impracticable, in the space available between the upper and lower roll necks, to accommodate two ordinary bearing blocks in superposed relation, one to support the gudgeon of the upper roll and the other to hold .down the gudgeon of ROLLING-MILL HOUSING.

Serial No. 604,970.

the lower roll. Notwithstanding this, it is necessary for the proper operation of the rolls and for the rangeof adjustment demanded for the mill, to provide means independent of the fixed lower bearings 8 of the upper roll for holding down the lower roll and for opposing the vertical adjustment of the latter by the usual screw operating adjusting wedges 10,10.

The present invention meets this requirement by the special construction of the bearing blocks 8, 8, which support the upper roll and the bearing blocks 11, 11, Whichoppose upward movement of the lower rolls; as shown in Figs. 1 and 2, each block 8 has a bottom groove or recess 8 running transversely of the roll axis, said groove or recess being ofsufiicient width and depth to accommodate the adjacent block 11 for the lower roll when the latter is adjusted upwardly. Each block 11 is pressed down against its roll neck-by a transverse bar 12,

the latter passing through suitable slots 13,

13 in the housing sides, and being subjected at its ends to downward pressure applied through a pair of inverted bolts 14 and 15, which bolts are adjustably held in threaded openings of projecting lugs 16, 16. As shown in Fig. 1, the ends of bar 12 are slightly recessed, to receive the heads of bolts 11 and 15, whereby to prevent endwise movement of said bar 12.

By the construction above described, the lower bearings for the upper roll and the upper or holding down bearings for the lower roll are essentially telescopic, in that movement of the last named bearing is permitted, notwithstanding the limitations of space imposed by the close proximity of the roll necks. Furthermore, the bar 12, employed for holding down the lower roll, is, by reason of its-length and relatively small cross section,'of sufiicient flexibility to permit any ordinary adjustmentof the bottom roll without affecting, appreciably, the downward pressure on bottom roll neck. lVhen changing rolls, the bars 12 are drawn out endwise through the slots 13; followin this, the removal of the housing cap 1% permits both rolls and all their bearings to be removed from the housing. The bars 12, as here shown, are curved upwardly, in order not to interfere with the guide devices, not shown, that are bolted oneach face of the housing. Howeven-I am not limited to this construction, as said bars 12 may be straight, N

or if desired, bend downwardly. 7

Referring toFigs. 3 and 4, the modification therein shown involves lower bearing blocks 18 and 19 respectively, for the lower and upper rolls 3' and 4,the last named bearing blocks 19 for the upper rolls being of the usual construction and supported on ledges 20, 20 of the housing. As a variation of the interior telescopic arrangement of the holding down device for the lower roll, as

s hown '11 Figs. 1 and 2, the present modification contemplates a bearing block 21,

wfwhich fits over the neck of lower roll 3 near the extreme outer end of said neck, and at a point outside of the housing. The hold-.

'ing down device for thisbearing block 21 indicated by the numeral 22, which is acted upon by inverted bolts 23, 23, corresponding to the bolts and 15 of Fig. 1. In this arrangement,"the'flaccommodation of a bottom I bearing for the upper roll and a top bearranged between said'necks to permit upward movement of said upper bearing member .when said lower roll is raised.

2. In a rolling mill housing, an upper bearing member for the neck of a lower roll and a superposed lower bearing member for the neck-of an upper roll, said bearing m bers being independently supported in over .ppin relation between said'roll necks to permit 0 relative movement between'them when the lower roll is adjusted.

3. In a rolling mill housing, a pair of independent opposed bearing members in the space between the roll necks, one for supporting the upper roll and the other for holding down the lower roll, means for raising said lower roll, and said bearing members being telescopically arranged, whereby to accommodate both in said space when said lower roll is raised.

4. In a rolling mill housing, a fixed bearing for supporting, the upper'roll, said bearing being disposed in the space between the 'Fineans forraising said lower roll, and said upper bearing being in telesco relation 'to c0nsi'sts,.as before, of atrahsverse bar, here ing for the lower roll is efi'ected by ofiset-' roll necks, in combination with an upper bearing for holding down' the lower roll,

said first named bearing wit n the space between said-.ro ll necks to permit the raising of said lower roll.

5. In'a rolling mill housing, a fixed bearing for supporting the upper roll, said bearing being disposed in the space between the roll necks, in combination with an upper bearing for holding down the lower roll said upper bearing being oflset from said first named bearing within the space between said roll necks.

6. In a rolling mill housing, a holding down device for the lower roll, comprising a member bearing centrall on the upper bearing. for the neck of sai roll and exertadjustabledevicesat each end, exteriorily of the housing, said member being free to move in a slot provided by the lower bear-- 9. In a rolling mill housing, a holding down device for the lower roll, comprising a member bearing centrally on the upper bearin for the neck of said roll, and ad- 'justab e means, comprising inverted. bolts carried by said housing, for exerting pressure on the ends of said member, one of said bolts being interlocked with said member to prevent dis lacement thereof;

10. In a rol 'ng mill housing, .a holding down device for the lower roll, comprising a member bearing centrally on the upper bearing 'for the neck of'said roll in combination with inverted bolts threaded in holes in said housing .for exerting pressure on the ends of said member, said holes being closed at the top, to; exclude scale and dirt from the threads. I

Dated this 9th dafi of November, 1922. JE O'ME R. GEORGE.

75 Y ing pressure thereon through the action of

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