Year: 1897

page_text: Date of Application, 15th June, 1897
Complete Specification Loft 14th Mar 1898-Accepted. 7th May. 1898
I, ALEXANDER UDOVENKO, of Ekaterinoslaw, in the Empire of Russia, Engineer,
do hereby declare the nature of this invention to be as follows:-
In the accompanying drawings patterns are shown for making the grooves of
rolls for rolling rails (Figures 1 to 7; 1 to 7; 1" to 7"). The leading feature of
this rolling process consists in not employing the grooves A (Figure 8 which
compress the rail in height and widen the foot) after the division of the metal
into the rail head and foot by the first cutting passage that is to say after the
formation of the recess B.
In Figure 8 the dotted lines indicate the rail to be rolled, the full lines the
groove; the recess in Figure 9 is shown by hatching.
The arrangement of grooves is not essential, they may wholly or partially be
reversed, some or all may have their upper side turned under and their under
side above Figure 1 to 7^; 1" to 7". The first groove may be put in place of the
second, the second in place of the first, and so on, in short with the grooves shown
in the drawings, (Figures 1 to 7; 1 to 7; 1" to 7") all possible transpositions
and inversions may be made, so long as the principle remains the same that is
say that the grooves which compress the rail in height and widen the foot are
not used after the division of the metal bar into the rail head and rail foot in the
cutting passage independently of whether such a groove produces only the decrease
in the height of the rail or the rolling of the rail foot broadwise or both together
at the same time.
The groove 3, 3ª or 3b may be arranged in any desired position in the roll;
but should not be used after the division of the metal bar to be rolled into the
rail head and the rail foot. For rolling a metal bar up to 8 inches square only
grooves are necessary for most types of rails used in Russia and abroad. With
a heavier type of rail, as also with sufficiently strong engines, the section of the
metal bar to be rolled may be increased to 9, 10 or more inches square. All
grooves may be arranged in one pair and not as is usual in two whereby a saving
in power for driving the second pair takes place, which according to Prof.
T. A. Timme makes an economy of 20%. Besides which, thanks to the omission
of a second pair no loss in time takes place in transferring the metal bar to be
rolled from one pair to the other. The smaller number of grooves necessary
requires less time for rolling, the rail, leaves the rolls in a hotter condition and
does not therefore spoil in the mass of the rollers, which latter can be used for a
longer time without requiring trueing up.
As however less power is required for working metal in a hot state the consump-
tion of steam or power necessary for driving the rolls is less. On account of the
smaller number of grooves, rolling according to this process proceeds nearly

page_text: twice as quickly as the old, so that the rolling mill which now works 300 tons in
24 hours according to this process rolls in the same time 600 tons.
1511
c
1007
CARPMAEL-& Co.,
Agents for the Applicant.
I, ALEXANDER UDOVENKO, of Ekaterinoslaw, in the Empiré of Russia, Engineer,
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:-
In the drawings left with the Provisional Specification,. patterns are shown for
making the grooves of rolls for rolling rails (Figures 1 to 7, 1^ to 7, 1" to 7"). The
leading feature of this rolling process consists in not employing the grooves A,
(Figure 8, which compress the rail in height and widen the foot,) after the divi-
sion of the metal into the rail head and foot by the first cutting passage, that is
to say, after the formation of the recess B.
In Figure 8 the dotted lines indicate the rail to be rolled, the full lines the
groove; the recess in Figure 9 is shown by hatching.
The arrangement of grooves is not essential, they may wholly or partially be
reversed, some or all may have their upper side turned under, and their under
side above, Figures 1^ to 7; 1" to 7". The first groove may be put in place of the
second, the second in place of the first, and so on, in short with the grooves shown
in the drawings, (Figures 1 to 7; 1 to 7^; 1" to 7") all possible transpositions
and inversions may be made, so long as the principle remains the same, that is
to say, that the grooves which compress the rail in height and widen the foot are
not used after the division of the metal bar into the rail head and rail foot in the
cutting passage independently of whether such a groove produces only the decrease
in the height of the rail or the rolling of the rail foot broadwise or both together
at the same time.
All
The groove 3, 3 or 3b may be arranged in any desired position in the roll;
but should not be used after the division of the metal bar to be rolled into the
rail head and the rail foot. For rolling a metal bar up to 8 inches square only
7 grooves are necessary for most types of rails used in Russia and abroad. With
a heavier type of rail, as also with sufficiently strong engines, the section of the
metal bar to be rolled may be increased to 9, 10 or more inches square.
grooves may be arranged in one pair and not as is usual in two, whereby a saving
in power for driving the second pair takes place, which according to Prof.
T. A. Timme makes an economy of 20%. Besides which, thanks to the omission
of a second pair, no loss in time takes place in transferring the metal bar to be
rolled from one pair to the other. The smaller number of grooves necessary
requires less time for rolling the rail, leaves the rolls in a hotter condition and
dees not therefore spoil in the mass of the rollers, which latter can be used for a
longer time without requiring trueing up.
As however less power is required for working metal in a hot state the consump-
tion of steam or power necessary for driving the rolls is less. On account of the
smaller number of grooves, rolling according to this process proceeds nearly
twice as quickly as the old, so that the rolling mill which now works 300 tons in
24 hours according to this process rolls in the same time 600 tons.

page_text: Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. An improved process for rolling railway rails characterized by not using the
grooves A Figure 8 which compress the rail in height and widen the foot after
the division of the metal bar into the rail head and rail foot in the first cutting
passage, independently of whether such a groove only compresses the rail in height
or rolls the foot broadwise or performs both operations at the same time.
2. The improved process of rolling railway rails substantially as described and
shown in the drawings.