US1001116A - Steel-rolling apparatus. - Google Patents

Description

APPARATUS.-

D FEB.16,190&

J E YORK STEEL ROLLING APPLICATION FILE 1,001, 1 1 6,.

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J.E.Y0RK. STEEL ROLLING APPARATUS.

APPLICATION FILED FEB. 16, 1906.

1,001, 1 1 6. 'Patent-,ea Aug. 22, 1911.

2 SHEETS-SHEET 2. l

INVENTOR:

IAWITNESSES;

-cl'O separable sections sra-'rias PATENT onnion.

JAMES YORK, .0F YORK, N. Y., ASSIGNOR TO YORK ROLLING PROCESS COMPANY, A CORPORATION 0F NEW YORK.

STEEL-ROLLING- APPARATUS.

Specicaticn cf Lettersl Patent.

Patented A110. 22, 1911.

T01 all 'whom it may concern: v A

Be it known that I, .JAMES E.v YoRK,'a citizen ofthe United States, residing 'in the borough of Brooklyn, county'of Kings, city 'Sand State of New York, have invented cer- A tain new and useful Improvements .in Steel- Rolling Apparatus, of which the following is a specification.'-

In my applicationfor Patent No. 274,516',

"efled August 17, i905, I have described thel forming or spreading ofv a flange upon-an elongated shape by rolling the same laterally,

and suitable apparatus therefor.

. The present invention `provides certainlimprovements of such apparatus and certain other improvements referred to in" detail hereinafter. l v

l The accompanying drawings illustrate embodiments' of.- the invent-ion.

V Figu'rt'e 1 is a longitudinal section ofa bed' ready for, the -rolling opera.- and 3 are similar sections of 'carry1ng [rails tion.. "Figs 2 a style of' ,bed arranged to'bendf a flange simultaneously. lwith the forming of the 25' same,Fig. Q'showing A the rails in position tobe clampedvfor' rolling, and. Fig. 3 showing the rails after beingl clamped.. Fig. 4 is al similar;section'showing-a method of bend- `ing theupper angeylfig 5 isa lan of the a0 .feeding apparatus; Fig. 6 is an e evation of the. end ofoneof the plungers.-

-, @The principal features v'of the apparatus are a roll A, which may be vertically adjgustable. and rotatable as in ordinary rolling mills,I and one or more beds or carriers arranged to reciprocate-beneath the roll A. :-Elongated shapes, such, for example, as the 'railwayfrails B, are carried by the bed in t f .positionstransverse tothe direction of its movement, so that the exposed portions' of saidshapes-(the heads of the rails in the 'present instance) arespread'laterally upon the bed asa supportto form the Harige', or to spread a ange or head originally pre- A 'llamented.. The elongated shapes are intro#l 4,duced vpreferably by shoving them endwise finto, their grooves. For greater ease in in- "tlf'stlcng and .f shapes the bed is composed of a number of C mounted upon a'substantial base D. the sections being free to move toward 'each other, that is to' say, longi- A tudinally of the bed as a whole,.and being -held against lateral movement byany suit-' able mechanism. A

between the base D of the bed and the overhanging `the overhang E withdrawing the elongated After the rails are introduced into the grooves formedv by the spaces between the sections, -the latter .are pressed together so as to engage the webs' of the rails or similar shapes. The roll then passes backward and forward, th'e rails -being preferably softened by previous heating, until the heads of the 'rails are spread to 'flanges of the desired shape. 4 This spreading is accompanied necessarily by a considerable downward pressure or draft of the roll. The pressure upon the Work is transmitted, 'directly to the overhanging'end portions D of the movable sections. In my previous application it- Was proposed to leave the bases E of the rails without support' beneath them so as to insure that the heads F of ythe railsl should rest squarely upon' the tops of the sections C, and also forthe' purpose of causing a slight downward curving ofthe center of theflange resulting from the rolling of the; head'. y According to my'presentinvention I propose to wedge the bases E of the rails tightly portionsD of the sections C, and 'at the same time to wedge the overhangingv portions C of the sections as closely as possible between thetapering upper face of the rail base E andv the under face of the head F. This will of course necessitate the use of sections C differently Vproportioned to fit the different sizes of rails worked upon, but as raill designs are very Well standardized this will, not involve any particular' ditliculty.- 90 Such a machine is more durable than the A machines in which the bases ofthe rails are in a free space. The pressure of .the roll is necessarily very great, and the overhang of the port-ion C of each sectlon 1s so great in proportion to its depth, and the softening of the metal of the bed by the 'heat communicated from the hot railsl is so great that there is a material bending downward of after the machine has been in use for a comparatively short time. By the arrangement shown the overhang C 1s pressed closely against the top face ofthe base E of the rail, and the latter 1n turn is pressed firmly against the base D ,of the bed so that the overhang C is supported practically as wellas -if it were solldlycon nected in a vertical line with the base D of the bed. The kdurability lof the'machine is therefore practically as great as if thereill were no bending strain upon the overhang. Furthermore, the sections C beingloose upon the bed there is a tendency of these sections t tilt as the roll passes from one side to the other of a section. Where the overhanging edges of the sections are supported in the manner described, there can be no such tilting, and the work can be rolled much more accurately to desired dimensions. Each section being supported at its opposite sides there is really no need for a support at the center except to hold up the sections while the rails are being introduced into their grooves. Another advantage iiowing from this arrangement is in the more uniform heating of the sections. vWith the pre'-V vious construction of t-he bed the section C came into intimate contact'with the hot rails only along the upper portions of the `sections. These also are the portions which are most heated by the operation of rolling. It is practically essential to heat the entire rail' in order to get the head hot, and when such a heated rail is clamped between thesections in the manner shown the heat in the bases of the rails is transmitted to the lower portions of the sections C so that these sections y tween the properly shaped surfaces, so thatV in point of time the bending of the lower fiange and the convertil'ig of the upper head into a flange cost no more than the single operation of rolling the head into a flange.

For this purpose it is only necessary to form convex ribs G upon the base I) of the bed and corresponding concaves or grooves II upon the under edges of the overhanging portions C of the sections C. Then the sections are then pressed together' and have assumed their determined positions with the rails between them the bases of the rails will be curved in the manner indicated at E in Fig. 3.

The desired curvature of the upper flange may be obtained in the operation of rolling either by suitably concaving the upper face of the sections of the bed, or even by a simplemanipulation of the roll, 'as I have dis-y covered by experiment. Fig. 4 illustrates this operation. Then the flange F has been rolled out quite thin and al heavy draft is put upon the roll A, the edge of the fiange F 'rises as the roll passes off it, this rising being probably due either to the spring of -the metal. of the fiange or to adhesion to the yroll. By putting only a light draft upon the roll, or no draft other than its own above referred to.

weight, the fiange may be y*flaftteiied again.

Therefore by merely operating the Wheelcontrolling the draft theflange mayffbemade curved 'or fiat as desired. I do notclaim this method of curving the upper flange the present application, but I am not to be understood as thereby abandoning right to claim the same in a separate application. I propose to employ also a new mechanism for feeding the rails or similar shapes to the bed upon whichthey larel rolled,... :F.jigs.'

railsf'ther `rom by any suitable power from p alongside the bed, to a position VA#The dotted lines alongsidea .furnacev rails are Awithdrawn@v from V the -f nace,l by tongs or other suitable mechanism fd laid. upon the bed, preferablyin.positioi 'deter-y mined by breaks in the ribs N. formedv on the surface of the bed, these :ribs serving as guides to hold4 the rails in line'withfthe grooves in the bed QI, `so as to facili-t v,their entrance into said grooves@ f For transferring the rails.`v from'the table K to the bed, I propose to .use hydraulic apparatus which shall push` the'Y rails endwise with a positive "pressure, distin-` guished from the frictional fgrippingfthe n'lechanism shown inmy prior applications The hydraulicvmecha anism for example any suitable number of cylinder-sE Q inminted upon a suitable base and carrylngfjplston rods I), at the ends of wh'iclrarepfin'gis Q Y l engaging theends of thera-ils andpushingy them positively in thedesired direclvtion.1 AQ cylinder O may be provided forreachfpair of rails, in which casea yoke Ris fo p the end of the piston rod andearries apair of depending lingers Q. These fingersg Q are made small enough to enter the grooves in the bed J, andthe stroke of thepistons is such that the rear.v ends of the rails'may4 be forced entirely into the `grooves,`the" fini gers Q following them` up and entering.' the grooves for a slight distance`, as.fshown in dotted lines.. By"thismechan'ismfIsecure the pushing of the rails to lthe' full xt ent" desired into the grooves ofthebed,an With a positive pressure `'against-th'e endspo'f the rails by mechanism which operatesrapidly and is under perfect control; or;y

other antifriction devices may be provided to facilitate the movement of the railsl across thev bed.

Though I have described with great. particularity of detail certain specific embodiments of my invention, yet it is not to be understood therefrom that the invention is limited to the particular embodiments de- Various modifications in detail and in the arrangement and combination ot'the parts may be made by those skilled 1n the art Without departure from the invention.

lthat I claim is l. A rolling mill for forming lor spreading a flange upon an elongated shape having a web and a base, including in combination separable sections tor-holding such shape in aposition transverse to the pat-h of movement so as to carry them laterally under the roll, whereby the pressure of the roll passes from one side to the other of said sections, said sections having overhanging portions, said overhanging portions and the base of the bed, being shaped to tightly engagel the top and bottom faces or" the base ofthe shape and to wedge such base be' tween them.

2. A rolling unil for forming or spreadinga flange upon an elongated shape having a. web and a base, including in combinationa bed having a groove for receiving an elongated shape, means arranged alongside of said bed for pushing said shape endwise to torce it into the groove, 'and means for forming or spreading a iange on said shape while in said groove. I

t. A rolling mill for forming-tor spreading a .ii'ange upon an elongated shape, including in combination a bed having .grooves for receixving such shapes, a feeding table arranged alongside of said bed, and means for pushing against the ends of such shapes upon said feeding table and thereby forcing said shapes from the table into said grooves.

5. A rolling mill for forming or spreading a flange upon an elongated shape, including in combination a bed having grooves for lre ceiving such shapes, means comprising a cylinder and piston arranged in line with said grooves for pushing against the ends of such shapes and thereby forcing said shapes into said grooves, and a feeding table adapted to be introduced between said hydraulic means and said bed with said shapes on said table in positions to enter said grooves.I

' 6. A rolling mill for forming or spreading' afiange upon an elongated shape, including in combination a bed having grooves for receiving such shapes, a feeding table arranged alongside ot said bed, and apusher bar having a cross head provided with iingers adapted t`o engage the rear ends of shapes upon said feeding table to push the same endwise into grooves upon the bed, said fingers being adapted to enter said grooves. v

In Witness whereof, I have hereunto signed my name in the presence of two subscribing Witnesses.

' JAMES E. YORK Vitnesses D. A. USINA, THEoDoRn T. SNELL.

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