Year: 1886

page_text: Date of Application, 25th Oct., 1886.
Complete Left, 27th June, 1887.
Complete Accepted, 5th Aug., 1887.
I, ADOLF MÄRKLIN, engineer, residing at Hoerde, Kingdom of Prussia, do hereby
declare the nature of this invention to be as follows:-
My invention relates to rolling-mills for rolling flanged rails having a gutter or
channel in their top and other bars of similar section, and in which mills a pair of
main rolls and one or two auxiliary rolls, placed vertically to the fomer, are so
combined as to form the required rolling-groove, and the improvement consists in the
particular construction of the said main rolls and of the bearings of the auxiliary rolls,
which allows two or more rolling-grooves, adapted to produce the said guttered or
channelled rails or bars, to be formed with one pair of main rolls.
For this purpose the main rolls are provided on each side of their operating portion
or portions with a wide groove, and in these grooves are located bars carrying or
forining the bearings of the auxiliary rolls, the said bars being passed through the
grooves and fixed at their ends to the frame of the mill or to parts secured thereto.
Moreover these bars are made of such sectional area as to nearly fill out the grooves
of the main rolls through which they pass, in order that, when being deflected by the
pressure acting on them during the rolling-process, they will bear against the bottom
and the outer side of the said grooves, and thus be prevented from being bent to an
injurious extent.
This construction allows two or more of the described systems of auxiliary rolls and
bearings (whether comprising one or two rolls each) to be arranged by the side of
each other between two main rolls, and also above each other between the central main
roll and the upper and the lower corresponding rolls of a mill with three such rolls,
or three-high-mill.
The rib serving to produce the gutter or channel in the rail or bar to be rolled, may
be formed upon one of the main rolls, or on one of the auxiliary rolls, or on the single
auxiliary roll, if but one is employed.
Deted the Twenty third day of October 1886.

page_text: I, ADOLF MÄRKLIN, Engineer, residing at Hoerde, Kingdom of Prussia, do hereby
declare the nature of this invention, and in what manner the same is to be performed,
to be particularly described and ascertained in and by the following statement:-
My invention relates to rolling-mills for the manufacture of flanged rails having a
gutter or channel in their top, and other bars of similar section, the said mills
comprising a pair of main rolls and one or two auxiliary rolls placed vertically to the
former and so combined therewith as to form the required rolling-groove. The
improvement constituting the subject of the invention consists in the particular
construction of the said main rolls and of the bearings of the auxiliary rolls, which
allows two or more rolling-grooves, adapted to produce the said guttered or chanelled
rails or bars, to be formed with one pair of main rolls.
For this purpose the main rolls are provided on each side of their operating portion
or portions with a wide groove or recess, and in these grooves or recesses are located
bars carrying or forming the bearings of the auxiliary rolls, the said bars being passed
through the grooves or recesses and fixed at their ends to the frame of the mill or to
parts secured thereto. These bars are made of such sectional area and form as to
nearly fill out the recesses of the main rolls through which they pass, in order that,
when being deflected by the pressure acting on them during the rolling-process, they
will bear against the bottom and outer side of the said recesses, and thus be prevented
from being bent to an injurious extent.
On the annexed sheet of drawings Figs. 1° and 1b represent the rolls of a roller-
mill with three rolls (or three-high-mill) having my improvement applied thereto.
As is shown by the left-hand upper part of Fig. 1, the operating portion a of the
roll w, the portion a of the roll w provided with the rib c, and the auxiliary rolls rr
form together a rolling-groove adapted to produce a rail of the desired sectional shape.
At both sides of the portions a the rolls w and w¹ have recesses b for the location of
the bars y carrying the rolls r. According to Fig. 1b these bars are bolted to other
bars, parallel to the rolls ww¹, and rigidly fixed to the standards of the mill. The
bars q are made of such width and height that but little play is left between them and
the sides and bottom of the recesses b, in order that they may find a support upon the
rolls w and w¹ as soon as they commence to bend.
In like manner as between the left-hand ends of the rolls to w¹ another set of rolls r
and bars may be arranged between the rolls w w' at d, and thus still others if the
length and strength of the rolls are sufficient for this purpose. Moreover it is possible
to dispose like sets of auxiliary rolls between the main rolls w¹ and w³ as is shown by
the drawing.
As regards the rib c, which according to Figs. 1ª and 1b is formed upon one of the
main rolls, the disposition may be modified by arranging the same upon one of the

page_text: auxiliary rolls r, as shown by Fig. 2, the operating surfaces of the main cylinders
being in this case so shaped as to produce the desired form of the sides of the rail to
be rolled.
Fig. 3 shows a modification of the latter arrangement in which the roll r not having
any rib
is omitted, the groove being closed on this side by the projecting portion e
of one of the main cylinders:
The profile of the rails, &c., may be developed entirely by means of successive
passages through different grooves formed as described, or the rail is first rolled to its
sectional outer shape in grooves formed by two main rolls only, as is shown at the
right-hand end of Fig. 1a, and thereupon finished by being passed through a groove
of my improved system.
Having now particularly described and ascertained the nature of this invention and
in what manner the same is to be performed, I declare that what I claim is :
Չ
The combination, with two main rolls, such as w and w³, having each by the side of
an operating portion a, the recess or recesses b, of one or two auxiliary rolls r, placed
vertically to the main rolls and journalled in bars 9 passing through the recesses b,
one of the said main rolls or of the auxiliary rolls r, or the single auxiliary roll being
provided with a rib c, adapted to produce a gutter or channel in the rail or bar to be
rolled, substantially as and for the purpose specified.
Dated the Twenty fifth day of June 1887.