US591713A

US591713A - Rolling-mill

Info

Publication number: US591713A
Authority: US
Publication date: 1897-10-12
Anticipated expiration: 1914-10-12

Description

3 Sheets-Sheet 1. J. S. WORTH.

ROLLING MILL.

(No Model.)

Patented Oct. 12,1897.

YN; Noun-s Evans co. Pncraumu.. WASHINGTON. o. c.

(No Model.)l 3 Sheets-Sheet 2.

J. S. WORTH.` ROLLING MILL.

110.591,713. Patented Oct. 12,1897.

las

r .s W12? 3v Sheets-Sheet 3. J. S. WORTH.

ROLLING MILL.

(No Model.)

N0.591,713.. Patented Oct. 12,1897.A

UNTTEDl STATES PATENT OFFICE.

JOHN SdW'ORTII, OF COATESVILLE, PENNSYLVANIA.

vROLLING-MILL.

SPECIFICATION forming part of Letters Patent No. 591,713, dated October 12, 1897. Application filed November 21, 1.896x Serial No.y 612,963. (N o model.)

T0 all whom it may concern:

Be it known that I, JOHN S. WORTH, a citizen of the United States, and a resident of Ooatesville, Pennsylvania, have invented certain Improvements in Rollin g-Mills, of which the following is a specification.

My invention relates to certain improvements in releasing devices for rolling-mill rolls.

The object of my invention is to provide means whereby the upper roll can be released immediately in case of an accident, such as when a plate or other shape sticks between the rolls.

In the accompanying drawings, Figure lis a side view of the rolling-mill. Fig. 2 is a View of the upper portion of the rolling-mill, showing part in section; and Fig. 3 is a seotional plan view on the line 3 3, Fig. 2.

A A are the housings of the rolling-mill, which in the present instance is termed a three-high rolling-mill.

B is the lower roll, B the upper roll, and B2 the intermediate roll. These rolls are adapted to suitable boxes. The upper roll B rests in a box b', which is supported by the vertical rods b2, extending to the lower portion of the housing, and each of these rods is connected to the short arm of a weighted lever B3, so that the weight of the upper roll is carried mainly by thelevers. Hydraulic cylinders or springs may be used as full equivalents of the levers when necessary.

C C are the housings for the drivers of the driving-gears C C2 C3, which are connected to their respective rolls by spindles E E E2 in the ordinary manner or by omitting the spindle E2, as is often done, the middle roll running by the friction against the top or bottom roll.

a d are the screws mounted in theheads of the housingsA A for regulating the distance between the rolls.

Mounted on the journal-box of the upper roll B are the half -boxes b3, provided with circular liners b5, fitted to their concave surfaces, on which rest the projecting ends d d of the frame D, and on the frame are wedges F F, supporting the block b4, against which the screws CL bear, so that as the screws are turned down pressure will be applied through the parts above mentioned to the roll B', but

should the metal being rolled stick through any cause by simply withdrawing the wedges the upper or second roll will be released, so as to allow the metal to pass through. In case the wear on the journals or boxes should be unequal or tend to tip the boxes b3 the liners b5 will turn in their seats, so as to present at all times level bearings for the ends d of the frame D.

The wedges at each side are connected to a head G by rods g g, and this head is secured to the end of the piston-rod G of a piston G, adapted to a cylinder D', mounted on a frame D. The steam, air, gas, water, or other liquid, as desired, is admitted to the cylinder through the jointed pipes g' g2, which are connected to suitable valved duid-pressure pipes, so that on turning the valves the piston G will be raised and the wedges will be withdrawn a certain distance to allow the roll or rolls to be elevated, after which the valves may be reversed and the piston and the wedges forced back and securely held in position. Screws d at each end of the frame D limit the outward movement of the wedges, thereby keeping all lost motion out of the connectingrod joints while the wedges are in place.

The surfaces of the frame D on which the wedges travel are preferably lined with hard metal, as shown in Fig. 2, and the frame D is made in two parts, (in the present instance bolted together,) and the wedges are coupled to the head G by two rods g g at each side, although in some instances a single rod may be used.

In order to relieve the upper roll of the weight of the frame D, I provide lever mechanism oneach side of the frame composed of two bars I I', which are coupled together at t' and rest upon vertical rods z", which extend through openings in the upper half of the box of the roll B and rest upon the lower half of the box, being, in fact, continuations of the bars b2, so that the weight of the frame is carried by the levers B3 or theirl equivalents as the frame D rests at on each side upon one of the side bars I. A plate cl2 holds the bar I in position. The pivot-pin 7l can be forced in any one of the holes in the bars I I', so as'to regulate the leverage.

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In order to counterbalance the frame D to Y lever mechanism out beyond the housings The weight of the frame is balanced to a ce'rlevers are hung in the middle atj' to a saddle J', which passes under the middle ofthe upper spindle. The other end of this lever .I is connected by a rod L7'2 to a projecting fixed bar J2, mounted on the housings C C, so that the rods i form fulcrums for the levers I I'.

tain extent by the spindle E' through the medium of the lever mechanism described. Thus a twofold Object is attained-that is, relieving the rolls of the weight of the frame D and the proper supporting of the spindle E' at all points of its travel up and down with i ts connecting-roll. When the spindle is proportionately heavier or where more weight may be allowed to rest on the journals of the roll B', the compound lever I I' may be re-k placed by the simple lever I', lengthened sufiiciently to extend under the supporting-point a: of the frame D and resting upon its fulcrum i' in the one housing only. The lower portion of the frame D may be lled with Oil or any proper lubricant to a point above the wedges F, thereby guaranteeing their perfect lubrication at all times.

I claim as my invention l. The combination in a rolling-mill, of the housings, the rolls, bearing-boxes for the rolls, adjusting mechanism, a frame resting upon the upper boxes of the upper roll,wedges interposed between the frame and the adjusting mechanism, with means for withdrawing the Wedges, substantially as described.

2. The combination in a rolling-mill, of the housings, the rolls, bearingboxes for the rolls, a frame mounted on the upper boxes of the upper roll, a block above the frame, adjustingscrews, wedges mounted between the frame and the blocks, a uid-cylinder mounted on the frame, and a piston therein connected to the wedges, substantially as described.

3. The combination of the housings, the rolls, the lower boxes for the upper roll, mechanism for supporting these boxes independent of the lower rolls, a frame mounted above the upper rolls and supported by the lower boxes of the said upper roll, wedges carried by the frame and means for withdrawing the wedges and adjusting mechanism for regulating the distance between the rolls, substantially as described.

4. The combination of t-he housings, the rolls, boxes for the upper roll, means for supporting said boxes independently of the lower rolls, a frame extending over the boxes of the Y upper roll, levers adapted to carry said frame, bars on which said levers rest, said bars extending to the lower boxes of the upper roll, bearing blocks, adj usting screws, wedges mounted between the bearing-blocks and the frame, a cylinder, a piston and its rod, and' rods connecting the levers to the head of the piston-rod, substantially as described.

5. The combination of the housings, the

rolls, a frame supported above the rolls and having means for releasing the rolls in thel 6. The combination of the roll-housings A, c

the rolls mounted thereon, a frame D having wedges, a cylinder, its piston connected to the said wedges, means for controlling the ow of iiuid into the cylinder and compound levers I, I', at each side of the frame resting upon the boxes of the upper roll, a spindle E', a saddle J' therefor, two levers mounted on the saddle one arm of each lever being connected to a lever I', the other arm being connected to a fixed point, substantially as described.'

7. The combination of the roll-housings A, the rolls mounted thereon with suitable boxes and supports, a frame D resting on the upper boxes of the upper rolls having means for releasing the rolls and the line b5 between the frame D and the top box b3, substantially as described.

l8. The combination of the roll-housings, rolls mounted thereon, boxes for the rolls, the upper boxes of the top rolls having confaved upper surfaces, circular liners resting in the concaves of the said boxes, a frame mounted on the liners, wedges on the frame, means for moving-said wedges withV adjusting mechanism above the wedges, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JOHN s. WORTH.

W'itnesses:

OLIVER G. JACKSON, W. l). JACKSON.

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