US268825A - Rolling-mill - Google Patents

Description

5 Sheets-Sheet 1.

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J. RBESE.v ROLLING MILL.

Patented Dec. 12, 1882.

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No. 268,825. Patented Deo. l2.' 1882.

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UNITED y*STrrrns PATENT GFFICE.

JACOB REESE, OF PITTSBURG, PENNSYLVANIA.

ROLLING-MILL.

SPECIFICATION forming part of Letters Patent No. 268,825, cated December 12, 41882.

Application led May 2Q, 1882. (No model.)

To all whom it may concern Be it known that I, JACOB REESE, a citizen of the United States, residing at Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in aOontinuous Train for Rolling Metals 5 and I do hereby declare the following to be a full, clear, and exact description thereof, reference being had to the accompanying drawings, forming a part thereof. Y

A continuous train is composed of a series of pairs of rolls, which are placed in front of each other, in order that the metal may pass from one pair of rolls into the next adjoining pair, and maybe operated on by all of the rolls at the sameinstant. Continuous trains, as far as I am aware, have been used exclusively for the manufacture of spike-iron and wire rods. Attempts have been made toroll skelp-iron and hoop-iron on such a train; but I am informed that this has been abandoned. rlhe great difficulty in adapting a continuous train for the production of hoop-iron or iron or steel of any shape which is to be Vsold as a finished article I conceive to be in the fact that all continuous v trains, as heretofore constructed, have been provided with so many gear-wheels and idlers, so as to have the rolls run at proper speeds and Y in the right direction, that the slip and backlash incident to each tooth produced such an Y irregular movement to the rolls as to make the iron passing through them of a wavy and uneven surface, which unitted it for merchant sales; but when the metal was rolled into rods and then cut up into spikes or drawn into wire these defects were not so objectionable.

. Another difficulty exists in the use of a continuous train for the manufacture of bars or hoops, which is that it is not practical to turn the metal between succeeding pairs of rolls, and it has been proposed to alternate the tongue and grooved rolls from top to bottom of succeeding rolls; but this, when the tongue is in the bottom roll, throws the fin. down, and by rubbing against the bottom guide this iin is distributed over the bottom surface of the hoop, is rolled in at the next pass, and mars the appearance. Now,to obviate these difficulties and adapt the continuous train for the manufacture of hoops and merchantbar shapes, Iidispeuse with the use of cog-wheels, idlers,

and pinions, and vin placethereof a series of pulleys are so arranged as to drive the rollsin the right direction and at the required differential velocities by the use of two endless belts, or by retaining the pinions the train may be driven by one belt; and to obviate the difficulty of placing the tongue of tongue and grooved rolls as a bottom roll, I dispense with such rolls altogether, and in place thereof I use box-grooves. `Heretofore in the construction of box-grooves one half of the box-opening has been placed in each roll, which forms, a fin in the center of the sides Vof the metal. Consequently each succeeding pass would make the fin in the same place, and for this4 reason box-grooves have only been used where the blank so rolled could be afterward edged to roll down the iin; but with my improved box-grooves, in which the greatest part of the metal is embedded in one roll and the less part in the other, the iin is above or below the center, and by reversing the position of the deep box-groove in each succeeding pass the fin is rolled into the side of the metal, and the surface of top and bottom is thus kept free from lin-slivers. To more fully provide for a clean surface, I employguides with an open top and bottom,in order that the scale thrown off of the metal will drop down through the guides, and thus prevent it from being rolled into the surface of the hoop. In lining up rolls for the purpose of making the metal thicker or thinner, it has been done by placing the liners between the necks of the top and bottom rolls. It is a work of great danger to do this in anytrain, and especially in a continuous train while'the train is in motion. To remedy this difficulty I form the housing-cap and Vthe journal-box of the top roll in one piece, by which arrangement I am enabled `to line the top roll by placing liners between the top of the housing and the cap.

The object of my invention is to remove the difficulties which have heretofore prevented the use of a continuous train in the manufacture of hoopliron, hoo'psteel, and merchant shapes, and to so improve the train as to adapt it for rolling all kind of metal to advantage.

-Referrin g to the drawings, Figure l, Sheet 1, is a ground plan of my continuous train, in which no cog-wheels,idlers, ortoothed pinions are used. Figs. 2, 3, 4, 5, and 6, Plate 1, show the form of box-grooves and finishing-rolls of a continuous hoop-train, the greatest portion of the box being in the lower roll of Fig. 2, theupper roll of Fig. 3, the lower ro-llof Fig. 4, and 'upper roll of Fig. 5, Fig. 6 being plane-faced rolls. Fig. 7, Platel, shows the form of my open guide with a cross-section ofthe metal in place. Fig. 8, Plate 2, is a side elevation of Fig. 1. Fig. 9, Plate 3, is a ground plan of a moditication of my improved continuous hoop-train, in which cog-wheels and idlers are dispensed with, but in which pinions are used, and the rolls are placed on the necks of the pinions. Fig. 10, Plate 4, is a side elevation of Fig. 9. Fig. 11, Plate 5, is a rear en d elevation of Figs. 9 and 10. Fig. 12 is a side elevation of Fig. 11. Fig. 13, Plate 5, is a rear end elevation, and Fig. 14 isa side elevation, of Figs. 1 and 8.

rLike letters refer to like parts.

I shall now describe my improvement as applied for rolling hoop-iron; but I wish it distinctly understood that I do not wish to lilnit f the use of my improvement to that particular branch of manufacture, but broadly claim its use in rolling metal of all kind.

Fig. 1, Sheet 1, exhibits a ground plan, and Fig. Sheet 2, a side elevation, of my continuous hoop-train. It will be noticed that by this arrangement I am enabled to dispense withv allcog-wheels, idlers, and pinions. The rolls are driven by means of two endless belts working over pulleys which are placed on thev ends ot' the rolls. The pulleys of each pair of rolls are on opposite ends of the rolls, and the pulleys on each side of the train alternate from the top to the bottom roll of each succeeding pair. The arrangement of the belts and pulleys is fully shown in Fig. 8, Sheet 2. In order to keep the belts tight, the belt on one side is passed down and over a tightening-pulley,

while the belt on the other side of the'train is` passed up and over a tightening-pulley. These tightening-pulleys may he made adjustablein the usual manner, so as to keep the belts at proper tension. The differentpairs ofrolls may be placed at any suitable. distance from each other; but I prefer to have them so arranged that the pulleys will come near each other, in order to have the belts cover as large a surface of each pulley as possible. provided with my improved box-grooved rolls. In the first pair of rolls, a', is the bottom roll, (see Sheet 1,) and has the larger portion ofthe box in it, while a has the less portion of the box, and in each succeeding pair the largest portion of the box alternates from the bottom to thetop and from top to bottom. Thus the rolls a b' c d have the least depthv of grooves, and the rolls a b c d have the deepest grooves of their respective pairs. The rolls et and a are eight inches in diameter, b and b' are nine inches diameter, c and c' are ten inches` diameter, d andd are eleven inches diameter, and

'e and e are twelve inches diameter. The

pulleys on e e' are sixty inches in circumfer- This train isl ence, on d d are seventy-three inches in circumference, on c c are eighty-eight inches in circumference, on b b are one hundred and six inches, a, a are one hundred and twentysix inches in circumference, andas the belt travels twelve hundred feet per minute,it will drive the several rolls so as to cause the metal to pass at the following speeds: a a', two thousand seven hundred and thirty-four, b b', three thousand six hundred and seventy-two; c c', four thousand eight hundred and ninety; d d', six thousand tive hundred and one; e e', eight thousand six hundred and forty inches per minnte. The reduction ofthe area ofthe metal being twen ty-iive per cent., the velocity is correspondingly decreased from the driving-power.

The other arrangement or modification of my train is shown in Figs. 9 and 10. In it pinlons are used, and the rolls lnade adjustable on the necks of the pinions, the pulleys being arranged so as to drive alternately the top or bottom of each succeeding pair of rolls. The third feature of my improvement is in the peculiar form of the box-grooves employed. By this arrangement thelins are continually rolledylo-wn into. the edges, and as no fins are formed on the corners, a sounderedged hoop can be made than when the work is done in tongued and grooved rolls. The guides are also ofthe construction as shown at ain crosssectional Fig. 7, which shows the guides with the metal in them. The object of using guides of this form is to allow the scale to drop out of the guides; otherwise it would be carried into the succeeding rolls and mar and disfigure` the blank and finished hoop; but by the use of the open guides the blank is guided by inclosing its edges only, and allowing the scale to drop, through the bottom, while the top is open, so as to enable the roller tosee how the metal is working, or to put water on it for the purpose ot' scalingit when desired. Acontinit ldoes away with all gearing and cog-wheels; second, the cost of construction and repairs isi consequently reduced g third, double the amount of work may be produced; fourth, it dispenses with the rougher and catchertwo male experts-fand this reduces the cost of labor; fifth,

the metal is worked more uniformly, andconse quently better work will be produced; sixth, the. improved box-groove will roll the metal with ysolid corners, and also roll down the fins into the edges, which I have never seen before.

It will be noticed that I construct the bearing ofthe top rolls and the cap of the housing in one'piece. the top roll at the same instant. 1n other words, instead of lining the rolls in the present method between the bearings, as at .fr in Fig. 12, I line them at same ligure, Plate 5'.

Thus by lining the cap I adjustv IOS These journal-boxes may be made of cast-iron and babbitted; butthey should be made with a water-jacket, such als fully set forth in application filed by me February 18, 1882, as by the use of the water-jacketed journal-box the necks ofthe rolls will be kept cool at all times.

The power is applied at e and e', they being y the rolls requiring the greatest velocity. By

applying the power at this point Iam enabled to place pulleys of an increasing diameter on each succeeding pair ot' rolls, and I am also enabled to reduce the' diameters of each succeeding pair of rolls from the driving-power,- thus concentrating the strain on and as near to the driving-power as possible; and by communicating the poweralternately from the top roll of one set to the bottom of the succeeding pair, and' from the bottom to the top roll of succeeding pairs, I am enabled to turn each roll in the proper direction without the use of idlers. This feature of lny invention may be used on acontinuous train in which cog-wheels are employed instead of belts.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, 1s

l. Acontinuous train of rolls mounted in suitable housings, the rolls of each pair having pulleys on opposite ends, and all so arranged as to bedriven bytwo continuous belts,where by cog-wheels, idlers, and pinons may be dispensed with and a steady and uniform motion secured, substantially as and for the purpose set forth.

2. In a continuous train of rolls wherein boxgrooves are used, the rolls having alternately deep and shallow grooves, so that more than one half of the box will be in one roll and less thanone halt'in the other roll, and so arranged that the deep groove or portion of the box` shall alternate from the bottom to the top roll of each succeeding pair, whereby the lin formed will be rolled into the edge of the metal at each driving-shaft attached to the rolls which are.

required to be rotated at the greatest velocity, and having a pulley or pulleys attached to the end or ends of the roll-bearings, substantially as set forth, whereby the greatest strain is concentrated at or near the driving-power.

A continuous train provided with a series of pairs of rolls, each pair of which from the rs't have an increased diameter as compared with the preceding set, and each set having pulleys decreasing in diameter as the rolls increase in diameter, substantially as and for the purpose set forth.

6. A continuous train of a series of pairs of rolls having pulleys mounted on the roll-spindles, and sov arranged with relation to each other as to admit oi communicating the power alternately from the bottom roll of one pair to the top roll of the succeeding pair, whereby all the rolls may be rotated in the proper direction without the use of idlers.

JACOB REESE.

Witnesses FRANK M.' REEsE, WALTER REESE.

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