US249662A - Rolling mill - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1. L

D. B. OLIVER.

ROLLING MILL.

PatentedNov. 15,1881.

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(No Model.)

D. B. OLIVER.

ROLLING MILL.

No. 249,662. Patented N0v.15,1881.

mi messes- M UNiTEI) STATES PATENT OFFICE.

DAVID B. OLIVER, OF ALLEGHENY, PENNSYLVANIA.

ROLLING-MILL.

SPECIFICATION forming part of Letters Patent No. 249,662, dated November 15, 1881, Application filed June 23, 1881. (No model.)

To all whom it may concern Be it known that 1, DAVID B. OLIVER, of Allegheny, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Rolling-Mills and I do hereby declare the following to be a full, clear, and exact description thereof.

My invention relates -to improvements in mills for rolling skelp and band iron. One form-of mill for this purpose consists of a train of non-reversing two-high rolls, in which the iron is drawn out by passing through in one direction, and hence requires to be transferred after each pass from the delivery side to the feed side, in order to be again entered into the rolls. This transfer has heretofore been made by the workmen on the delivery side taking take hold of it at the center and pull.

hold of the piece with their tongs and pushing it back under the rolls. The workman on the feed side then takes hold of the end andinserts it into the rolls. The pile from which the skelp or band is made weighs from fifty to four hundred pounds, according to the size of the skelp required, and at the final grooved pass generally obtains a length of sixty feet or more. After this pass it is so long and thin that it is very difficult to push through under the rolls to the feed side for the finishing pass; but the chief difficulty is to start it as it lies on the floor. To do this two men take hold of it at the back end and push, and two others Once started it slides over the polished floor-plates with comparative case, but it is very difficult to start, as it is not only heavy and unwieldly, but, being very thin, buckles or bends up in the middle, and requires to be again flattened. The operation is consequentlylaborious to the workman, and the delay causes a loss of heat, and thereby reduces the production and in creases the cost of manufacture.

Myinvention relates to mechanism for transferring the piece from the delivery to the feed side of the finishing-rolls, whereby I reduce the labor and increase the product.

To enable others skilled in the art to make and use my invention, I will now describe it by Like letters of reference indicate like parts in each.

The finishing-rolls a and a are mounted in housings b of the usual construction. Mounted in the bed-plate c or otherwise is a roller, d, which is driven by power from one of the rolls by means of a belt, 6, and pulley f. Pivoted to a suitable bearing, g,is a lever, h, carrying a loose roller, 13, on one end, an adjustable counter-weight, j, on the other end, and with a handle or arm, 7c, extending from its side, preferably at right angles to it, for operating it and bringing the roller t' down upon the roller (1. Extending from the roller d, under and to the other side of the rolls a a, is a trough, l, and on the delivery side of the rolls is a delivery-trough, m, which extends preferably beyond the rollers 01 and c.

The operation is as follows: The piece, af ter being delivered from the last grooved pass of the train, lies on the floor, along, thin, wide band of hot iron, with its end at one side of the rollers d i. It is seized by the workman and dragged sidewise onto the roller (1, which is an easy operation. The workman then takes hold of the handle it and draws the rollervl down upon the piece. This causes the piece to be fed back through the trough Z under the rolls a a. When its end passes beyond the end of the trough the workman seizes it with his tongs and turns itbaokward and inserts it into the rolls a a, as shown bydotted lines in Fig. 3, which then give it the finishing pass. The end of the trough l is turned up slightly at l, to give an upward direction to the end of the piece, so that it maybe more easily caught by the workman. When the rolleriis brought down on the piece the weight j slides inward along the lever h, and when the roller is thrown up the weight, sliding back to place, holds the rollers apart. The use of my improvement not only saves time and labor, but increases the product of the mill.

If preferred, the upper roller, t, may be driven by power and the lower roller, (1, turn loosely by friction; or power may be applied to drive both rollers. It is necessary that a power driven roller be present to move the piece, and that a pressure-roller be used to hold the piece against the actuating-roller, in order that the friction of the latter upon the piece may be sufficient to move it.

What I claim as my invention, and desire to secure by Letters Patent, is-

1. The combination, with a pair of skelp or band iron rolls, of a pair of transfer-rollers ar- 5 ranged on the delivery 'side of the finishingrolls and adapted to return the skelp or band to the feed side of the work-rolls, one of said transfer-rollers being power-driven and one being a movable pressure-roller, substantially 10 as and for the purpose specified.

2. The combination, with a pair of skelp or band iron rolls, of a receiving-trough arranged on the delivery side of said rolls, a pair of transferrollers arranged near the delivery end 15 of the receiving-trough, and a'retnrn-trough arranged below the work-rolls and extending from the transfer-rollers to the feed side or front of the work-rolls, substantially as and for the purpose specified.

3. The combination, with the skelp or band 20 iron rolls and the transfer-rollers, of a returntrough having its delivery end turned up, substautially as and for the purpose specified.

In testimony whereof I have hereunto set my hand.

DAVID B. OLIVER.

Wi tnesses:

'1. B. KERR, JAMES H. PoR'rE.

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