US267983A - Lbvi j - Google Patents

Description

(.No Model.)

L. J. MASTBRSON.

ROLLING MILL.

No. 267,983. Patented Nov. 21-l 1882.

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LEVI J. MASTERSON, 4OF PHILADELPHIA, PENNSYLVANIA, .ASSIGNOR TO GEORGE H. ORCUTT, GEORGE HARDIN G, AND RUDOLPH M. HUNTER, ALL

F SAME PLAGE.

sPEcIFIcATIoN' forming pere ef Letters 'Patent No. 267,983, dated vNovember 21,1882,

Application led June 30, 1882. (No model.)

To all whom it may concern Be it known that I, LEVI J'. MASTERSON, of the city and county ofPhiladelphia, and State of Pennsylvania, have invented an Improvement in Rolling-Mills, of which the following .y is a specification.

My invention has reference to rolling-mills, but more particularly to the mechanism by which the rod which is being rolled is given a 1o partial revolution; and `it consists in the arrangement of a series of pairs of Vrolls for reducin g the metal, having their axes horizontal, incombination with a series of pairs of feed-` rolls whose operative surfaces are constituted of spring-threads arranged about their peripheries, and having their axes oblique or vertical, a pair of said feed-rolls being arranged between every two pairs of reducing-rolls, andin many details ot' construction, all ot which are zo fully set out in the following specification, and shown in the accompanying drawings, which form part thereof.

The object of my invention is to cause a partial rotation of the bar which is being rolled,

`2 5 and during its passage fromone pair of rolls tothe next, whereby all ofthe said rolls may be arranged with their axes horizontal, which position is necessary for economical working and keeping of the rolls cool, the said partial 3c rotation being effected by suitable springfeedrollers, which automatically adj ust themselves tothe bar to be turned.

In the drawings, Figure 1 is a vertical section through a series of reducingand feed rolls. 3 5 Fig. 2 is afrontelevation of myiinproved feedrolls. Fig. 3 is a plan of same. Fig. 4 is an elevation of a spring-thread, made square in cross-section. Fig.5is a similar view in which the thread is made triangular, and Fig. 6 is a 4o similar View in which the thread is made substantially parabolical.

A A A2 A3 are the reducing-rolls, and are arranged in pairs, one above the other, their axes being horizontal.

B B 2B2 are the feed-rolls, and are also arranged in pairs, each pair being arranged between two pairs of reducing-rolls, as shown, having their axes vertical or oblique.

- G C' G2 C3 represent the bars in the act of 5o being rolled.

The `feed-rolls are constructed as follows:

v'I wo cylindrical bodies, F, are journaled rigidly or adjustably at each end f to the frame E, open at the top between the two journalsf, as shown at E. The bottoms of these bodies F are provided with flanges or collars H, which may be provided with lips h, if desired, to prevent displacement ot' the end of the spring threads or helices I, which encircle the said bodies and rest upon the flanges or collars. These spring helices or threads may be of any ldesired cross-section, the drawings showing elliptical or oval, square or rectangular, triangular, and parabolic sections.

2. These spring helices or threads are clamped in place by screw-nut G, which is' locked in place by a lock-nut, G', these nuts Yworking on screw-threads F upon the upper end of the bodies F. Any other well-known means may In practice I prefer the oval or elliptical, as shown in Fig.

be employed to hold the springs in place, and v the device as awhole may be made adjustable,

so as to set it for any desired pitch of thread, V

which may be varied by said nuts.

. In arranging the feed-rolls between the main or reducing rolls l prefer to gradually decrease their Obliquity in accordance with the variation ofthe pitch of the spring-threads; but even this is not absolutely necessary, inasmuch as the elasticity in the threads causes them to adjust themselves automatically to any sized or shaped bar. The reducing-rolls reduce the bar to a flattened oval or analogous shape, and before passing to the next pair of reducingrolls the feed threads or helices cause it to be turned a quarter 0f a revolution, so as to be fed with its widest section in a vertical or nearly vertical line, so that when passed through the next pair of reducing-rolls itis again flattened, e

IOO

ducing-rolls, in combination .with a series of oblique feed-roll bodies, said feed-roll bodies being arranged in pairs between every two pairs of reducing-rolls, and having springfeedthreads about their peripheries, substantially as and for the purpose specified.

3. In a rolling-mill, a series of horizontal reducing-rolls, in combination with a series of oblique feed-roll bodies, said feed-roll bodies being arranged in pairs between every. two pairs of reducing rolls, having spring feedthreads about their peripheries, and a graduv ally-decreasing Obliquity, substantially as and for the purpose specified.

.4. In a'rolling-mill, a series of pairs of horizontal reducing-rolls, in combination with a series of twisting and feeding rolls, said feedrolls being arrangedin pairs between every two pairs of reducing-rolls, and each successive pair having axes of a gradually-decreasing obliquity and approaching thevertical line, substantially as and for the purpose specied.

5. Apairot'horizontalreducingrolls,in coinbination with a pair ot' twisting feed-rolls arranged in front of same, and adapted to feed the bar to said reducing-rolls, and at tlie saine time turn the said bar a part of a revolution, said rolls being provided with elastic helical feed flanges or ribs, substantially as and for the purpose specified.

6. A pair ot' feed-roll bodies provided with devices to Vfeed the bar to a pair of reducing rolls, and at the saine time give said bar apartial rotation, said devices consisting of elastic helical feed flanges or ribs, in ombin ation With means to change the pitch of said helical ribs, substantially as and for thepurpose specified.

7. Apair of horizontal reducing-rolls, in conibination with a pair of roll-bodies having twisting feed devices arranged in front of same, and adapted through said devices to give the bar a partial revolution as it is being fed to the said reducing-rolls, said devices consisting of elastic helical flanges or ribs, the ribs of both of said helices beingeither rightorleft handed, substantially as and for the purpose specified.

S. A pair of feed spirals or helices having elasticity, and arranged to rotate in opposite directions, and between which the bar is fed, whereby the said bar is fed horizontally, and also turned a part of a revolution, substantially as and for the purpose' specified.

9. Ina rolling-mill, the feed-roller bodies F, provided with shoulders or lianges H, in coinbination withnuts G G', or their equivalent, spring threads or ribs I, and frame E, substantially as and for the purpose specified.

10. The frame E, having opening i" at top, in combination with roller-bodies F and their spring threads or ribs I, substantially as and for the'purpose specified.

In testimony of which invention I hereunto set my hand.

LEVI J. MASTERSON.

Witnesses:

R. M. HUNTER, R. S. CHILD, J r.

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