US83718A - Improved apparatus for rolling- metals - Google Patents

Description

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ROBERT-MARSDEN, OF SHEFFIELD, ENGLAND.

Letters Patent No. 83,718, dated Normnber 3, 1868; patented iny Eng/land., lllafrclt 13, 1865.

IMPROVED APPARATUS kIll-"OEI ROLLING METALS.

The Schedule referred to in these Letters Patent and making peut of lthe same.

To all whom. Iit may concern:

Be it known that I, ROBERT 'BL-insonni, ofbheiiield, in the county of York, England, have invented certain Improvements in Machinery or apparatus for Rolling, Shaping, or Forging Metals; and I do hereby deL-lare that the following is a full, clear, and exact description of the same, reference being had to the accompanying lhawings, making part of this speciu'cation, in which- Figure 1 is a front elevation of my improved machinery; v

Figlu'e 2 is an end elevation of the saine;

Figure 3 is a transrerse section; and

Figures 4, 5, 6, 7, 8, 9, and 10 are views of some of the parts detached.

Similar letters or numbers, in all the iigures, refer to similarI parts. 4

rIhis invention relates more especially to the rolling of steel, for producing blanks for tiles, carriage-springs, and various articles oi' cutlery, such as pen and pocketblades, table-knife blades, andv similar articles.

To enable others skilled in the art to make and use my invention, I will proceed to describe the same, as follows:

In constructing the die-roll, which, in the present instance, is 'designed to shape the leaves of elliptic springs, I take adisk or circular plate of steel, of the requisite diameter and thickness to receive a counterpart, either in whole or in part, of the article or arti cles to be produced, and form, by filing or turning, or by other means, upon this rst disk the counterpart or counterparts of so much of them as may be desired.

I then take two other disks or plates of steel, of the requisite size, and lit them Very accurately, one to each side of the first disk, and then screw them all firmly together, and thus complete the first principal or bottom roll,

In gs. 1 and 4, E represents the first disk, ,shaped or wrought so as to form the counterpart of three plates or pieces, such as are used in the manufacture of springs for railway-carriages, and it will be seen, by iig. 4, that the disk E is shaped so as to taper the ends, and, by means of theprojections a a, to form the eye, to receive the steadying-pin, ,upon the succeeding plates, which will be more clearlyseen in the section, tig. 5, showing part of a railway-carriage spring.

In fig. 6, o shows the central disk, modified in its contour, so as to produce a blank for a file, while Nos., 16 and 17 show the manner in whichy the two outer disks are fitted to the central disk.

Having completed, in the above manner, the first or principal roll, I take another disk of steel, of the size required to correspond with and take so much of the counterpart or pattern as was deficient in the first disk, after which the central disk and side plates are screwed or bolted together, as in the former example, thus making, in connection with the former roll, a pair of complete rolls. The manner in which this is performed will be seen by referring to F, iig. 4, and to d, iig. 6.

After the parts of each roll have been completed, they should be hardened and tempered, and they are then 'ready to be attached to the shaft or axle, to he driven and used as an ordinary-Y pair of rolls, as is shown at E and F, iig. 1.

[n some cases, each roll will consist ofonly two disks or plates, instead of three disks or plates, according to the requirements ofthe pattern or article to beproduced.

When there is likely to be a greater amount ofwear upon some parts of the roll than upon others, as in the manuihcture of blanks for flics, I insert a movable piece or boss, shown full size in iig. 9, and reduced at No. Z1 in tig. o, which piece or boss will take as much of tl ie pattern as may be required, and can be replaced, when injured or worn, without detriment to the other part of the roll.

For carriage or other springs, or whenever it may be desired, I also adopt another plan; that is to say, I take an ordinary roll, ofthe size required, and cut or sink upon the face or circumference, by turning or otherwise, a true counterpart of the spring to be produced. For long springs, simply sink or cut one such pattern, and, for shorter springs, I cut two, three, or more patterns, according to the circumference of the roll, siniilar to what is shown at E, fig. 4.

As each pair of rolls will be required to be of diferent diameters, so as to bring into correspondence the patterns impressed upon them, something different from the ordinary driving-gear must be employed, in order to accommodate the different diameters of the rolls. I accomplish this object in the following manner:

To the axle or shaft C, figs. 1 and 3, which carries the principal or bottom roll, I X a smball toothed wheel, H, and fix a similar wheel, H1, to the axle or shaft I), which carries the top or second roll. Upon small counter-shafts, Nos. 5 and 6, fig. 3, I attach or fix other toothed wheels, H2 H3, of the same size, one of which counter-shafts works in steps or boxes, No. 8, cast upon the standard B, iig. 3, and the other shaft works in bearings in the connecting-loops or rods 7 7, but looseat the ends. rIhc.said connecting-loops or rods bring the three wheels, IIl H2 H3 into gear, and secure'- the three. axles or shafts together, so that, whatever may be the size of the rolls within certain limits, the whole of the toothed wheels will always remain in gear, as shown in iig. 3.

rIo prevent the toothed wheels om going too deep into gear, I place small rollers, No. 4, fig. 10, upon the three shafts I), 5, and 6, connected together by the loops or rods.

To prevent lateral motion, I use the collar and set screw 9, iig. 1, on shaft G, and, for the top shaft, D,

the washer and check-nuts, marked 10, 11, 11, shown in said figure.

Having described the parts in detail, l will now gire a general description of the whole.

ln rigs. l., 2, and 3, A'represents the bed-plate, upon which the whole machine stands; B B, the standards or frames, which support the diti'erent shafts; C, the bottom shaft., carrying the bottom or principal roll, E; D, the top shait, carrying the top or second roll, F.

G, iigs. 1 and 2, is a strong iron strap or coupler, to supportthe lprojecting ends of the shafts G and ll),

, and to assist the screws passing` through the top of vdeeply mto gear.

13, l, are the steps or boxes in which the two principal shaft-s work, which steps or boxes are made of iron, and case-hardened, and are accurately fitted to the shafts, and also to the openings on the standards B, in which they :u'e required to be placed.

Nos. 9, 10, and 11,'tig. '1, are collars and checli-nuts,

v to hold the shafts to their places.

No. 22, iigs. l and 3,lis a large spur-wheel, with a small wheel, 23, geared into it. 24 is the ily-wheel. 25 is the loose pulley and driving-drum, by which the whole machinery is put in motion. Nos. 19 and 20, iig. 2, are standards for supportingtables, for guidingr the bars to and 'om the rolls.

The devices numbered 22, 23, 24, and 25 may be dispensed with, and the machine coupled, if advisable, by the end ofthe shaft C, to an ordinary train of rolls.

By reference to 8 will be seen the manner in which the inner plate or disk is formed,1 with the opening to receive the boss or movable piece, represented in iig. i), while iig. 7 shows, at No. 14, the manner in which the boss or movable piece is sunk in the outer plate, No. 16, the whole being shown in position, iig. 6, where the boss is marked 21..

ln iig. 1, the disk E, placed against the inside of the plate 2, shows the manner in which the tapering form is given to the end oi' the spring-plates, iig. 5, and which 'may be made to extend to any distance along the plate, while the small projections a, iigs. 1 and 4, show the manner in which the eyeletsare formed in the under part of the spring, to receivethe steadyingpin of the next succeeding plate.

- In the upper disk, F, iigs. 1 and 4, there are small cavities, b, into which the metal is pressed, as it passes through the rolls, for making the steadying-pins on the upper side of the plate or spring at the same time, and corresponding with the cavity or eyelet formed by the 'projections on' the bottom disk or roll, both of which are shown, in the section of a spling, at fig. 5.

Having now described the nature and particulars of my invention, and the manner in which the same is to be performed, I desire it to be understood that I ela-im as my invention- The mode described of combining the two shafts by means of the toothed wheels, aud rollers, and countershafts, connected by loops or rods, substantially as speeiiied.

In witness whereof, I, the said ROBERT MARSDEN, have hereto set my hand, this 1st day of December, A D. 1865. n

. ROBT. MARSDEN.

Witnesses:

Wu. H. SMITH, J osEPH WOLSTENHOLME.

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