US499590A - Universal rolling-mill - Google Patents

Description

(No Model.) 4 SheetsSheet 1.

A. REESE. UNIVERSAL ROLLING MILL.

No. 499,590. Patented June 13, 1893.

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UNIVERSAL ROLLING MILL.

Patented June 13, 1893.

Win $359 3 (No Model.) 4 Sheets-Sheet 3.

A. REESE.

UNIVERSAL ROLLING MILL.

No. 499,590. Patented June 13, 1893.

4 Sheets-Sheet 4.

(No Model.)

ARE-ESE; UNIVERSAL ROLLING MILL.

No. 499,590. Patented June 13, 1893.

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UNITED, STATES PATENT OFFICE.

ABRAM REESE, OF PITTSBURG, PENNSYLVANIA.

UNIVERSAL ROLLING-MILL.

SPECIFICATION forming part of Letters Patent No. 499,590, dated June 13, 1893.

Application filed June 11, 1892.

To all whom itmay concern:

Be it known that I, ABRAM REESE, a citizen of the United States, residing at Pittsburg, in the county of Allegheny. and State of Pennsylvania, have invented certain new and useful Improvements in Universal Rollin g-Mills and I do hereby declare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention has relation to universal rolling mills, and particularly to rolling mills of large size and of the class employed in rolling ponderous ingots and plates, such as armor plates for marine vessels. In rolling mills of this type it has heretofore been very difficult to provide for the lateral adjustment of the vertical rolls to meet all the required conditions of work, Without lessening their power or decreasing their speed. To maintain the proper rate of speed corresponding to the speed of the horizontal rolls and at the same time provide for the adjustment of the vertical rolls close together, it has been necessary to employ small pinions on the ends of the shafts of the vertical rolls, when the latterderive their motion from a single horizontal shaft; or to employ two horizontal power shafts, one above and one below the vertical rolls, when the latter carry large pinions. It has also been proposed to obtain the advantages of large pinions, by using supplementaryvertical rolls, outside the vertical working rolls, and to drive the latter by frictional contact with the supplementary rolls, the latter beingprovided with pinions of sufficiently large diameter to produce the desired power. When small pinions are employed on the vertical rolls, the latter are deficient in power and unserviceable for heavy work. The employment of two driving shafts, one above and one below the vertical rolls, while permitting the use of large pinions, renders the mill exceedingly large, cumbrous, expensive to build and operate, and in all respects unwieldy and unsatisfactory; while the em ployment of supplementary rolls driven by frictional contact is a waste of power and a resort to an expedient obviously defective, uncertain and unreliable.

The object of my invention is to overcome Serial No. 436,374. (No model.)

the diiiiculties heretofore experienced in prop erly driving the vertical rolls, and to provide a mill in which the vertical rolls may be positively driven at any desired power and speed, and which may be adjusted laterally both toward each other and apart, to the fullest extent required in rolling operations.

My invention accordingly consists in the novel constructions, combinations and arrangements of parts, in a-universal rolling mill,embodyingthefollowingspecial features: first, laterally adjustable, vertical rolls, coupled by gearing to, and positively driven from supplementary vertical shafts, which are correspondingly adjustable; second, laterally adj'ustable, vertical rolls, coupled by gearing to correspondingly adjustable vertical shafts, and the latter positively driven from a horizontal shaft geared to the shaft of one of the horizontal rolls; third, laterally adjustable, vertical rolls, positively driven from and by supplementary vertical rolls or shafts and mechanism forsimultaneously adjusting the rolls and shafts.

In the accompanying drawings, Figure 1 is a side elevation of a universal rolling mill embodying my improvements. Fig. 2 is a horizontal sectional View on the line 50-00 of Fig. 1. Fig. 3 is a vertical longitudinal sectional view on the line 0c-cc of Fig. 2. Fig. 4 is a front elevation of the mill.

The housings of the mill, comprise the usual structures A. A., in which the horizontal rolls B, B are mounted and the extensions A, A, in which are mounted the vertical working rolls 0, O, and the supplementary vertical rolls or driving shafts D, D. The extensions A, A, may be built integral with the housings, or cast separately and independently and afterward bolted to the housings or 0therwise securely fixed in position.

Inside and between the extensions A, A, are arranged the horizontal slotted-or divided ways, D D upon which are mounted the journal boxes E. E. of the vertical working rolls 0, O, and the journal boxes F, F, of the supplementary rolls or shafts D, D. These journal boxes rest and slide between the sides of the ways and are flanged on top to form slide bearings as shown at d, d, d, d. The journal box of each roll is connected rigidly and firmly to the box of its supplementary driving roll, by means of a bar or brace G, and both roll and supplementary shaft are adjusted simultaneously. I have shown certain mechanism for adjusting the vertical rolls and supplementary shafts, consisting of the screws H, II, swiveled in the ends of the journal boxes, and working through the housing extensions A, A, outside of which the screws are provided with gear-wheels h, h engaging with an intermediate gear or idler 2', mounted on the outside of the housing extension. The trains of gearing h, h, z, are worked through pinions t" on a separate shaft K, carrying operating wheels 70. Both trains and both rolls, with their supplementary shafts are adjusted simultaneously, by any suitable power applied to the shaft K. I do not, however, limit myself to the adjusting mechanism above described, but may employ wedges, or other suitable means for adjusting the rolls.

L, L, are the pinions of the Vertical working rolls, and said pinions are mounted on the upper ends of the rolls, above theupper guide ways.

The supplementary shafts, D, D, are arranged obliquely with reference to the vertical working rolls, and carry, on their upper ends, the large straight gears L, L, inmesh with the straight roll pinions L, L. Assuming the diameter of the roll pinions to be twelve inches, the diameter of the gears L, L, may be, say, thirty-six inches, thus imparting to the rolls a power equal to that which could be obtained by having the roll pinions thirtysix inches in diameter. The angular position or obliquity of the supplementary shafts in relation to the vertical rolls, is such as will permit the latter to be brought close together or in contact, a position they could not be adjusted to if said shaf t carried pinions of greater diameter than the rolls. The supplemetary shafts are driven from the horizontal transverse shaft M, mounted in the housing extension A, below the supplementary shafts, and the latter carry beveled gears, N, N, engaging with sliding pinions N, N, on said shaft M,the pinions N, being provided with grooved collars, n, 'n, splined on the shaft M, and the spindles of the supplementary shaft extended so as to engage with said collars. In a mill having twelve-inch vertical rolls, and thirtysix-inch gears on the supplementary shafts, the miter gears N, N, may be thirty-six inches in diameter, and say, five inches or five and one-half inches in pitch, so as to maintain the same driving power, and provide for the employment of shafting sufficiently large and strong for the purposes to which the mill is applied.

To communicate power to and drive the horizontal shafts M, without unnecessary complication, and to the greatest advantage in respect to power, convenience and simplicity, I abandon the usual method of taking the power from the pinions of the main driving shaft, and apply to the shaft of the lower hori zontol roll a large straigh't faced gear P, and to the shafts M, M, similar wheels P, P, the diameter of the gears P, P, P, being that required to locate the shafts M, M, a sufficient distance from the center of the horizontal rolls, to admit of the use of the vertical rolls, supplementary shafts and their gearing outside the main housings.

The shaft M has its bearings in boxes R, R, which are fitted into recesses R, from the outside of the housing extensions and secured in place by flanged cap pieces S, bolted to the housing extensions. The shafts M, under this arrangement may be easily removed and replaced without disturbing the vertical rolls or supplementary shafts.

The guiding ways D D which support the journal boxes of the vertical rolls andsupplementary shafts rest in recesses in the inner faces ofthe housing extensions, and are keyed therein. When the keys S, are removed, the guide ways, rolls, and supplementaryshafts may be conveniently withdrawn without disturbing the horizontal shafts M.

Having described my invention, what I claim, and desire to secure by Letters Patent, 1s-

1. In a universal rolling mill, the combination with laterally adjustable, vertically 'arranged, working rolls, of correspondingly adjustable, Vertical shafts, coupled by gearing to said working rolls and suitable mechanism for driving said vertical shafts, and adjusting the vertical rolls, substantially as described.

2. In a universal rolling mill, the combination with the laterally adjustable, vertical working rolls, carrying each a pinion on one end, the supplementary shafts carrying each a gear on one end engaging with one of said pinions and a miter gear on the other end, a horizontal shaft providedwith collared sliding pinions engaging with said miter gears, and mechanism for driving said horizontal shaft and adjusting said rolls and supplementary shafts, substantially as described.

3. In a universal rolling mill, the combination with the horizontal roll B, having a driving gear P, on its shaft, of a horizontal supplementary shaft M, carrying a gear P, engaging with a gear P, sliding pinions on the shaft M, verticalshafts, driven from said pinions, and vertical working rolls, coupled by gearing with the vertical shafts, substantially as described.

4. In a universal rolling mill, the combination with vertical, laterally adjustable working rolls, mounted in sliding journal boxes, vertical shafts geared to said vertical rolls, and mounted in sliding bearings, connected to the bearings of the vertical rolls, and mechanism for adjusting the said rolls and shafts simultaneously, substantially as described.

5. In a universal rolling mill, the combination with vertical, laterally adjustable working rolls, of vertical shafts geared to said vertical rolls, and arranged outside of and obliquely to the pass formed by the vertical rolls, and mechanism for driving said vertirolls, of the vertical shafts geared to said rolls, cal shafts, substantially asdescribed. and arranged out of alignment with the plane 6. In auniversal rolling mill, the combinaof adjustment of the vertical rolls, substantion with the vertical working rolls, having tially as described. 5 pinions on the same ends, of vertical shafts In testimony whereof I affix my signature in x 5 having gear wheels engaging with said pinpresence of two witnesses.

ions, and a horizontal drivingshaft, geared to r ABRAM REESE. said vertical shafts substantially as described. Witnesses:

7. In a universal rolling mill, the combina- .TOS. A. SHINN, 10 tion with the laterally adjustable vertical WM. A. SCHWEBEL.

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