US844520A - Rolling-mill. - Google Patents

Description

No. 844,520. PATBNTED FEB. 19, 1907. v

S. V. HUBER.

ROLLING MILL.

APPLICATION FILEDIMAR. 241006.

' a SHEETS-SHEET 1.

INVEN'I'OR WITNESSESiKM S: l? $4 6 ya sfmyamd q No. 844,520. PATENTED FEB. 19, 1907.

S. V. HUBER. I

ROLLING MILL.

APPLIOATION IILED MAR. 24.1906.

3 SHEETS-SHHET 2.

WITNESSES: 5

No. 844,520. PATENTED FEB. 19, 1907. S. V. HUBER.

ROLLING MILL. APPLIOATION FILED MAR. 24.1906.

3 SHEETS-SHEET 3.

WITNESSES: INVENTOR to a stretch or pull.

PATENT orrioa.

SIGMUND v. HUBER, or PITTSBURG, PENNSYLVANIA.

ROLLING-MILL.

Specification of Letters Patent.

mama Feb. 19,1907.

Application filed March 24,1906. Serial No. 307,907

To all whom it may-concern:

Be' it known that I, SIGMUND V. HUBER, residing at Pittsburg, in the county of Allegheny and State of Pennsylvania, a citizen of the United States, have invented or discovered certain new and useful Improvements in RollingeMills, of which improvements the following is a specification.

In the operation of continuous mills itis the practice to driveeach succeeding pair of rolls at a speed higher than that of the preceding pair, proportional'to the reductioneffected in the latter. It is practicall'yimpossible to so proportion the speeds of the several stands of rolls as to preventat some times a, looping out of the article between two pairs of rolls and at some times subjecting the same This inequality ofaction is due to many causes, the principal one being the variation in the temperature of the article 0 erated on.

The 0 ject of the present invention is to provide for an adjustment of speeds automatically controlled by the article, so as to prevent any material looping out or subjecting the article to injurious tension.

The invention is hereinafter more fully described and claimed.

In the accompanying drawings, forming a part of this specification, Figure 1 is a top plan View of a mill consisting of three stands of rolls having -my improvement applied thereto.

the pair 'or stands of rolls A, B, or C, -prefer ably the middle one, although it may be applied to any of the others, as desired. On

the power-shaft 1 are secured driving-drums adapted for rope transmission, and around these drums pass the ropes 2 and 3 and also around exp'ansible pulleys or drums onthe shafts 4 and 5. The shafts 1, 4, and 5 are connected in the usual or any suitable manner to rolls of stands A,B, and C. Between these stands of rolls are arranged suitable Figs. 2 and 3 are detailed views showing a means for controlling the speeds of troughs or guides adapted to be shiftedup and down by the article passing along the same between two stands of rolls. A desirable construction of trough is shown, con sisting of the main or body portions 6 and 7, hinged to stationary guiding portions 8 and 9 adj acent to the rolls, so that the inner or adjacent ends of the portions 6 and 7 can move up or down, as hereinafter described; These portions 6 and 7 are su ported near their inner ends by means 0 weighted levers 10, connected by links 11 to the trough-sections. These supporting means are so adjusted and constructed that the trough-sections at their inner ends are slightly above the stationary portions 8 and 9, and the bottoms-of such sections will forman angle to each other. By reason of this construction it follows that if an article, as a rod, when passing along between the rolls A and B is subjected to a pull or tension it will depress the inner ends of the trough-sections. Within these trough-sections are pivotally arranged plates 12, adapted to rest upon the article passing-along the trough. These lifting-plates overlap at their inner ends and aremade light, so thatdn case of a tendency of the article to loop out of the trough these plates will be raised. By arranging the sections 6 and 7 at an. angle to each other and arranging the plates112 to overlap at the apex of the angle formed by the troughs any tendency to loop out will be localized at that point and act on the plates.

Suitable means are employed whereby when the trough or their plates 12 change position a corresponding change will be effected in the driving mechanismas, for example, in the dimensions of the expanding pulleys of the rope drive. A desirable means for transmitting this movement consists of a belt-crank arm 13', carrying a roller 14, resting upon the plates 12. This armis connected in any suitable manner to the movable part or arm 15 of an electric controller 16, said controller beingarranged, as shown in Fig. 1, to control the circuit of electric motors 17. When by reason of a tension applied to the article the troughs'are depressed,.the controller will be operated so as to change the current leading to the motor 17, controlling rolls B, that the motor will 0 erate in a manner toincrease the speed of t e rolls A. When the lifting-plates' are raised, the controller will be shifted, in the art that when the levers 13 are shifted by tension on the article will effect adecrease in 'rolls B the controllers will 'be shifted so as to operate the motors 17, controlling rolls A and opposite direction, so as to again change the current to the motors, and thereby decrease the speed ofthe rollsA. I It will be understood that when the regulating mechanism between rolls B and'C is operated by the article that an increase of the speed of rolls 0, while a tendency on the part of the article to loop out will cause an increase in the speed of rolls 0.

As shown in Figs. 5 and 6, the expanding pulleys have their perimeters formed of sections 18, carried by slides 19, moving in ways in the sides of the pulleys. are connected by links to disks 20, loosely mounted on theshaft of the pulley and mov-j able longitudinally to the same. It will be understood by moving these disks 20 toward each other the sections 18 will be drawn inward, and an outward movement of suchsect ons will be effected by moving the disks apart. These disks are shifted by means of right and left hand screws 21, provided at their ends with pinions 22, interin'eshing With teeth of the hub of aninternal gear-wheel 23. This gear-wheel is loosely mounted upon the shaft and is adapted to be rotated around the same by the shaft 24 of the motor 17, operating through pinion 25 and gear-wheel 26. It will be understood by those-skilled in the reason of a too high'proportional speed of the C,in such a direction that the expandingsections will be moved inward, thereby de creasing the diameters of the expanding pulleys relative to that of the driving-pulley of the shaft 1, thus increasing the speed of the rolls A and C. 'When the controllers are shifted by the levers 13 by reason of a too slow proportional speed of rolls B, the reverse operation occurs, .and the sections 18 of the expanding pulley are increased in diam eter-relat'i've ,tothat of the pulley on the driving-shaft, so that the. rolls A and C will be driven at'a lower speed. It will be understood that the rolls B may have too high a speed relative to rolls A and at the same time These slides 19 riable -my hand.

have aproper speed relative to rolls C. In' such case only the driving mechanism of rolls A will be adjusted.

' I claim herein as my invention 1. A continuous rolllng-mill having 111 comb nation two or more stands'of rolls arranged in a common line of feed, means having a variable speed for driving said rolls, guide-troughs extending between adjacent stands of rolls and having portions movable by the article being rolled, and means controlled by said movable portions to control the roll-driving means.

2. A continuous rolling-mill having in combination two or more stands of rolls arranged 1n common l ne of'feed, means having a variable speed for driving said rolls, guide-- troughs having a movable 'section a mov-- able plate arranged to bear on the article being rolled, and means adapted to be shifted by the trough-section and plate to control the roll-driving means.

.3. A continuous 'rollingmill having incombination two 'or more stands of rolls arranged in'a common line of feed, a powershaft having drums or] pulleys, shafts for driving the stands of rolls provided with pnlleys, the driving or driven pulleys having vaerimeters and means controlled by the article being rolled for changing the perimeters of said pulleys.-

4. A continuous rolling-mill having in combination two or more, stands of rolls arranged in a commonline .of feed, a powershaft, shafts for driving the rolls, drums and ropes connecting-the driving with the driven shafts, one of each pair of transmittingdrums having movable peripheral sections,

an electric motor on the shaftscarrying said drums, connections from said motors to the movable sections, and a controller operative by the articlebeing'rolled for controlling the motor. j

In testimony whereof I have hereuntoset SIGMUND V. HUBER. Witnesses: v

CHARLES BARNETT, WILLIAM WILSON.

Images