Year: 1897

page_text: 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 drawing the lines xx, yy, zz, indicate the axes of the rolls
serving to roll metal; abc and a'b' c¹ the groove through which the metal to be
rolled passes (Figure 1).
According to the methods at present in use the metal mass M (Figure 2) passes,
in a three roll mill, between the rolls P and Q from either side according to the
direction of rotation of the rolls and the piece of metal only passes into one of the
grooves between the rolls Q and R after leaving the groove of the rolls P and Q.
According to this invention however the end of the piece of metal to be rolled is
led immediately out of the groove between the rolls P and Q into the groove
between the rolls Q and R Figure 3. The grooves abc may have the same or
different depths and the same or different shapes. The rolling mill may have 3, 4
or more rolls (Figure 4). The piece of metal may be led through the rolling
mill from top to bottom (Figure 4) or the reverse (Figure 5) and from either side
according to the direction of rotation of the rolls so long as the condition is borne
in mind that the end of the piece of metal to be rolled is after leaving one groove
led in a vertical direction backwards into the next groove of the same rolling mill.
The number of grooves abc is dependent on the length of the rolls. In passing
in a bent state out of a groove into the next the piece of metal may either lie close
to the roll or stand away from it. From a comparison of this process with the
old one it is evident that this new process requires twice, thrice &c. less time for
rolling than the old, whereby in the first case the metal leaves the mill in a con-
siderably hotter state and the power required for its rolling is less. The rolling
mill which according to the old process will work 16 tons of metal, will according
to the present process with sufficiently powerful driving apparatus perform 2, 3
or more times as much.

page_text: to be performed to be particularly described and ascertained in and by the
following statement:
-
In the drawing left with the provisional specification the lines x x, y y, z z,
indicate the axes of the rolls serving to roll metal: abc and able the groove
through which the metal to be rolled passes (Figure 1).
According to the methods at present in use the metal mass M (Figure 2) passes,
in a three roll mill, between the rolls P and Q from either side according to the
direction of rotation of the rolls and the piece of metal only passes into one of
the grooves between the rolls Q and R after leaving the groove of the rolls P and Q.
According to this invention however the end of the piece of metal to be rolled is
led immediately out of the groove between the rolls P and Q into the groove
between the rolls Q and R Figure 3. The grooves abc may have the same or
different depths and the same or different shapes. The rolling mill may have
3, 4 or more rolls (Figure 4). The piece of metal may be led through the rolling
mill from top to bottom (Figure 4) or the reverse (Figure 5) and from either side
according to the direction of rotation of the rolls so long as the condition is borne
in mind that the end of the piece of metal to be rolled is after leaving one groove
led in a vertical direction backwards into the next groove of the same rolling mill.
The number of grooves abc is dependent on the length of the rolls.. In passing
in a bent state out of a groove into the next the piece of metal may either lie close
to the roll or stand away from it. From a comparison of this process with the
old one it is evident that this new process requires twice, thrice &c. less time for
rolling than the old, whereby in the first case the metal leaves the mill in, a con-
siderably hotter state and the power required for its rolling is less. The rolling
mill which according to the old process will work 16 tons of metal, will according
to the present process with sufficiently powerful driving apparatus perform 2, 3 or
more times as much.
Having now particularly described and ascertained the nature of my said iñven-
tion and in what manner the same is to be performed, I declare that what
I claim is:
An improved process for rolling metal in a 3 or more roll mill consisting in
vertically bending the piece of metal to be rolled, immediately after leaving, the
groove between two of the rolls and leading it into the groove between one of
these rolls and a third roll.
111 1
1
1000