US1192815A - Rolling-mill. - Google Patents

Description

J. E. FAWELL.

ROLLING MILL. APPLICATION FILED MAR. 18, I915- RENEWED MAY 29. l9l6.

1 ,1 92,81 5. Patented July 25, 1916.

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JOSEPH EDWARD FAWELL, 0F PITTSBURGH, PENNSYLVANIA.

ROLLING-MILL.

Application filed March 18, 1915, Serial No. 15,395.

To all whom it may concern Be it known that I, Josnrrr ED\VARD FA- WELL, residing at Pittsburgh, in the county of Allegheny and State of Pennsylvania, a citizen of the United States, have invented or discovered certain new and usefulImprovements in Rolling-Mills, of which im' provements the following is a specification.

In order to avoid the large first expense and the cost of maintenance of a reversible two-high mill and its operating motor, re sort is frequently had to a three-high mill. The use of the latter involves the employment of vertically movable feed tables with reversible rollers on each side of themill.

The invention described herein has for its object a construction of mill having an intel-mediate roll and outer rolls arranged in such relation to the intermediate roll, that a plane coincident with the axis of the latter and the axis of one of the outer rolls will be at such an angle to a plane coincident with the axis of the other outer roll and the intermediate roll that by turning said rolls through an arc of a circle, the respective bites of said rolls will be brought to a common horizontal or approximately horizontal plane, thereby permitting of the employment of vertically stationary feed tables.

The invention is hereinafter more fully described and claimed.

In the accompanyin drawing forming a part of this specification, Figure 1 is a sec tional elevation of my improved mill, the

plane of section being at right angles to the axes of the rolls; Fig. 2 is a sectional view on a plane indicated by the line H TI Fig. 1; Fig. 3 is a diagrammatic view illustrating the arrangement of the pinions through which the rolls are driven, and Fig. i is a similar view showing a modified arrange ment of the pinions.

In the practice of my invention, the housings dows 2 and 2" for the reception of the hearing blocks 3 for the journals of the outer rolls 5 and 6. These windows are preferably but not angle shown one to the other. FVhen angularly arranged as shown in Fig. 1 the windows 2 and 2 connect with enlarged openings 7 in the housings and in the openings 7 are arranged the bearing blocks 8 for the journals of the middle roll 9. In order to facilitate the removal of the rolls from the housing, it is preferred to make these open- Specification of Letters Patent.

sition. ported in any suitable manner to enable 'them to be shifted, it is preferred that their 1 for the rolls are provided with win-' necessarily arranged at the Patented July 25, 191 6.

Renewed May 29, 19M;v Serial No. 100,703. v

ings 7 sutliciently large to permit of the passage of the roll bodies therethrough.

In the construction shown, the housings with the rolls are shifted through an arc of about ninety degrees to move one ofthe outer rolls and the intermediate roll out of operative. position and the other outer roll and the intermediate roll into operative po- While the housings may be suplower ends should be formed on the arc of a circle as shown, and rest upon rollers 10 suitably mounted on the bed of the mill. The necessary rotation of the housings may be effected by any suitable means such for example as that shown consisting of chains or other flexible means 11 connected to the housings and leading out in opposite direc tions to suitable means for exerting the desired pull thereon. The housings are held in the proper spaced relation by means of spacing blocks 12 and through bolts 13 as clearly shown in Figs. 1 and 2.

Fig. 8 shows diagrammatically an arand 6 to the pinions indicated at b and 0 respectively. In lieu of the arrangement shown in Fig. 3, the pinlons may be arranged as shown in Fig. 4, the rolls 9, 5 and 6 being connected to the respective pinions indicated at e, f and g.

In the construction shown the rolls 6 and 9 are shown in operative position, and will be so rotated as indicated by arrows 'as to receive the piece to be rolled from the table B, and deliver it onto table A. The piece is supported intermediate the rolls and the feed tables by bridges 15 which have their ends secured to the housings. After the piece has been delivered onto the table A its feed rollersare reversed, and the housings are shifted in the direction of the arrow X thereby moving the roll 9to top position and the roll 6 to the under position. In this position the'rolls 6 and 9 will re ceive the piece from the table A and deliver it onto the table B. It will be observed that in shifting the housings the pass or bite of the rolls 6 and 9 is brought to the same position vertically as formerly occupied by the pass or bite between the ice rolls 5 and 9, and hence the tables A and B may be made vertically stationary. In order to facilitate the movement of the piece to and from the rolls, the rollers of the feed tables are driven and adapted to be reversed.

As a bridge to support the piece intermediate of the table A and the rolls 6 and 9 when in operative position would interfere with the delivery of a piece from the rolls 5 and 9, rollers 16 are carried by the housings to carry the piece from the table A to the rolls 6 and 9.

Any suitable means may be adapted for shifting the rolls relative one to the other, as for example in the construction shown, wedges 17 are employed for shifting the rolls 5 and 6.

It is characteristic of my improvement that the rolls are so mounted as to be capable of being shifted in unison relative to a common line of feed, the intermediate roll being moved to position first above and then below such common line of feed, While the outer rolls do not cross such line.

I claim herein as my' invention:

1. In a rolling mill the combination of three rolls, means for rotating two of the rolls in one direction and the third roll in the opposite direction, and means for shifting said rolls around a common center.

2. In a rolling mill the combination of three rolls, two of said rolls being on oppo site sides of a common line of feed, and means for shifting the other roll through an arc of a circle across such common line of feed.

3. In a rolling mill the combination of a rotatable housing, three rolls mounted in said housings with their axes substantialh parallel with the axis of rotation of the housings, two of the rolls being arranged in reducing relation to the third roll but with different points thereof.

4. In a rolling mill the combination of retatable housings, three rolls mounted in said housings, two of the rolls being adapted to cooperate with the third, a plane coinciding with the axes of two of the rolls being at an angle to a plane coinciding with the axis of the third roll and one of the other two.

In testimony whereof, I have hereunto set my hand.

JOSEPH EDIVARD FAWELIJ.

I/Vitnesses ALICE A. TRILL, THos. B. JoYoE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.

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