US511422A - Rolling-mill - Google Patents

Description

(No Model.) I 2 Sheets-Sheet 1. S. 0. HASKIN. ROLLING MILL.

Patented Dec. 26, 1893.

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S. O. HASKIN.

ROLLING MILL.

No. 511,422. liatented B90426; 1893.

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STANLEY o. I-IASKIN, or MCDONALD, TENNESSEE.

ROLLING-:MILL.

SPECIFICATION forming part of Letters Patent No. 511,422, dated December 26, 1893.

Application filed February 28, 1892. SerialNo. 4-.22,525. (No model.)

ments in Rolling-Mills, of which the follow-" ing is a specification.

The ob ect of myinvention is to providean improved continuous train ofrolls in which the billet will be prevented from looping be tween the sets of rolls and to make a train of rolls in which the first end thereof can be worked to its full capacity while at the same time the size of the rolled bar or billet can be altielred without changing the capacity of the m1 My invention further relates to the special construction of parts by which the operative may readily handle the several rolls.

In the accompanying drawings:-Figure 1 1s a side view of my improved rolling mill. Fig. 2 is a plan view. Fig. 3 is a transverse section on the line 1-2, Fig. 1. Figs. 4, 5, 6, 7, 8, 9, 10 and 11 are views of the different passes. Fig. 12 is a vertical longitudinal section of the upper grooved adjusting collar, Fig. 1.

y B is the running top connection secured to the base A by vertical bolts (3 G.

D are the pillow blocks for the bottom rolls,- the shaft D of each bottom roll being journaled therein.

d is the bottom roll secured to a conical extension of the shaft D by a nut or other suitable fastening device.

The vertical bolts of each set of rolls pass through the pillow blocks, as shown, holding the said pillow blocks in position upon the base A. Adapted to slide on the bolts 0 C is the vertically adjustable journal-box E for the shaft E carrying the top roll e; thistop roll meshes with the bottom roll and forms the pass of any form desired for the billet. The sliding journal box is raised and lowered by toggle lever mechanism F, having one link f pivoted to a projection on the journal box whereby the rolls may be cleared of obstructions. Connected to this link is a leverf' which is pivoted to a block f 2 carried by the top connection B. This latter lever has an arm f provided with an adjustable weight f f is a set screw on the lever which strikes the lever and regulating the ing journal box E.

drop of the slid-.

The set screws or inthe top connection against the linkf, thuslimiting the motion of' serve'not only to take up lost motion but with the 'set screws f they regulate the length of movement of the toggle; lever mechanism when both rolls are in working position. The

two rolls are geared together by gear wheels g g'.,"and on each shaft are V-shapedjor grooved roll guides n n for adj usting the rolls 'e-ndwise in respect to each other. In Fig. 12, the upper roll guide a is shown splinedto Clutches are provided for eachpair of rolls so anynumberof the rolls can be thrown out of gear if required.

In order to prevent the looping of the billet between the sets of rolls from excessive draft or variation in temperature of the metal, I arrange the passes of the rolls in different planes, with the alternating rollshigher than the intervening rolls, as shown in Fig. 1. By this arrangement the loop will pass either under or over the rolls, and the excess of metal is thus taken up by a single loop instead of by many short loops or buckles, as in other trains; and as this loop is caused to pass over or under the rolls it is obvious that doubling or folding of the metal, as it passes between the rolls, is effectively prevented. This doubling of the metal has been a serious defect in continuous roll trains, as heretofore constructed, and I regard this feature of my invention by which it is prevented as of great importance and value.

On each side of each roll are guides in is, one a receiving guide'and the otheradelivery guide for directing the rod tothe next pair of rolls, each of said guides being provided with suitable guards, as clearly shown in Fig. 1.

I prefer to make the passes for reducing a billet to a rod in the manner indicated in Figs. 4 to 11 inclusive. Fig. 4 illustrates a pass of a roll arranged at an incline toward one side and Fig. 5 illustrates a pass inclined toward the opposite side. By this arrangement the necessity of turning the bar or rod after it has left one pair of rolls and before entering th next pair is avoided. Figs. 6, 7, 8 and 9 are views of the passes showing the reduction of the billet in the same form of pass as shown in Figs. 4 and 5, and Figs. 10 and 11 show the final passes. In the present instance these passes are flat for making fiat bars, but it will be understood that any number of passes may be used between 5 and 11, according to the character of the metal and the size of the billet and the size of the finished bar. It will be seen that by this method of rolling, the output of the train need not vary materially when making large or small sizes of rods or bars as the same size billets may be used by simply extending the train by adding more pairs of rolls, which will be more readily understood, when it is understood that the speed of the rolls inereases in the same ratio as the elongation of the billet or red throughout the entire train; it will e r ad y de od t a a ti g fr m a billet of any stated size, the only diflferenee in making a large or small rod is that the fonmer would require fewer passes, and it l ome near the t en of the r i an at th le pee per m nut then. h att which would require more passes and would have to go the entire length of the train and be delivered at a higher speed, thereby enabling the first endof the train to be worked to ts l apac y t-bent n any w y n e fering with the latter end of the train; and

hence if a, stated numberof tons is worked at thefirst pass the same numberof tons can be delivered by the final pass.

I claim my invention-- 1. In a continuous roll train, the combination with the hollow rolls, their shafts, and bearin gs for said shafts, of grooved adjusting collars carried by each shaft intermeshing with each other and adjusted laterally by means of set screws, substantially as described.

2. In a continuous roll train the combination with the alternating pairs of rolls, of intervening pairs of rolls having their passes in adifierent plane from and inclined oppositely to the passes of the said alternating rolls, substantially as and for the purpose set forth.

3. In a continuous roll train, the combination with the alternating pairs of rolls, of intervening pairs of rolls having their passes n a different plane from the passes of the said alternating rolls, thereby providing for looping of the metal and preventing doubling between the rolls, substantially as described.

In a inuous. roll tra n, the wmhineo of the ba e and th head nnne edhy e t a o t t e pi l w bl ck he sh s h in, a ollna ri y we s atta ver i al sliding bearing with a shaft journaled in said bear g and a y g the pperm r t se s on the shafts meshing with each othenadjtusting collars oneaeh shaft hayinggrooves meshing th ea h he or the purp se of al gning e o ls, n m a s for adjusting a where. substant a y a de r bed,

In. a r l ng m ll t ee mhi atien it h upper rolls iouma ed n s idin bea ing, of a toggle le r QQQE iHt-Z he W igh edleyer f c nne t it upper en -mik e d, an

the link f connected to the sliding bearing,

with mean f r reg ating the -r ay o sa o gl er and for taking p 9st m tion, substantially as andfor the purpose set forth.

In testimony whereof I have signed my name to this specifieation in the presence of two subscribing witnesses.

STANLEY 0. l-IASKIN.

Witnesses:

J. H. MCLEAN, W. LANDISS.

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