Improvements in and relating to Rolling Mills.
Year: 1892

page_text: Date of Application, 17th Feb., 1892
Complete Specification Left, 13th Dec., 1892-Accepted, 17th Feb., 1893
PROVISIONAL SPECIFICATION.
Improvements in and relating to Rolling Mills.
I, PAUL HESSE, Engineer, of 8 Wasser Strasse, Iserlohn, Germany, do hereby
declare the nature of my invention to be as follows:-
The present invention relates to machinery for rolling bar iron of various shapes,
and its object is to provide a device by means of which iron bars of various diameters
can be rolled by one and the same machine without having to change the rolls.
According to one method of carrying out my invention, I mount the rolls in a
circle around the bar to be worked, on shafts having adjustable bearings, in such
manner that the ends of the said shafts converge in the direction of movement of
the bar being rolled. Conical rolls are advantageously employed, having their
greatest diameter towards the converging ends of the shafts.
The rolls are rotated from a main driving shaft having a gear wheel engaging a
number of smaller gears arranged round its periphery and corresponding to
the number of the rolls. These gear wheels, which may be bevel wheels, are
connected to the roll shafts by intermediate shafts, attached to the latter and the
driving shafts by means of universal joints, so as to allow of the adjustment of the
angles of the roll shafts for rolling metal of various diameters.
By this means the iron will be drawn or pressed through the rolls towards their
converging ends, whilst the adjustability of the latter enables the pressure to be
increased or decreased as may be found desirable.
I do not confine myself to the circular, converging arrangement of the rolls, nor
to their conical form, as the same may also be cylindrical or grooved or of any desired
form, and they may also be arranged parallel to each other instead of converging;
or 1 can arrange various pairs of rolls, of which one roll may be stationary as regards
its position whilst the other may be adjustable. I can also arrange two or more
rolls on each shaft which will then act consecutively on the bar under treatment.
Or I may have one stationary roll in the centre and arrange adjustable rolls round
the same, such stationary or adjustable rolls being cylindrical or conical in shape.
I advantageously make the rolls adjustable by mounting their bearings on suitably
arranged screw spindles, which may be worked by hand wheels, either each roll
separately or the said rolls may be connected up by suitable gearing so that all will
be adjusted simultaneously.
GEO. H. RAYNER,
37, Chancery Lane, London, W.C., Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in and relating to Rolling Mills.
I, PAUL HESSE, Engineer of 8 Wasser Strasse Iserlohn, Germany do hereby
declare the nature of my invention and in what manner the same is to be performed
to be particularly described in and by the following statement:-
The present invention relates to machinery for rolling bar iron of various shapes
and its object is to provide a device by means of which iron bars of various diameters
can be rolled on one and the same machine without having to change the rolls.
In order to obtain this object I mount the rolls in a circle round the bar to be
worked, on shafts having adjustable bearings, in such manner that the ends of the
said shafts converge in the direction of movement of the bar being rolled, conical
Duine 17

page_text: rolls are advantageously employed having their greatest diameter towards the
convergent ends of the shaft.
The roll shafts are rotated from the main driving shaft of a motor to which is
attached a driving pinion engaging a number of smaller driving gears arranged
around it and corresponding to the number of rolls. These gears which may be
bevel gears are connected up to the roll shafts by intermediate shafts attached to
the latter and the driving shafts by means of universal joints so as to allow for
the adjustment of the angles of the said roll shafts for rolling metal of various
diameters.
By this means the iron will be drawn or pressed through the rolls towards their
converging ends, whilst the adjustability of the latter permits of increasing or
reducing the pressure on the metal being worked and consequently varying the
diameter of the same.
I do not confine myself to the circular converging arrangement of the rolls nor to
their conical form as such may be cylindrical or of any desired patterned form and
they may also be arranged cylindrically instead of conically; or I can arrange
various pairs of rolls of which one roll may be immovable as regards its position
whilst the other may be adjustable. I also reserve to myself the right of arranging
two or more rolls on one shaft, which act consecutively on the bar under treatment.
Or I may make one stationary roll in the center and arrange adjustable rolls round
the same such stationary or adjustable rolls being cylindrical or conical.
I advantageously make the rolls adjustable by mounting their bearings on screw
spindles which may be worked by handwheels, either each roll separately or the
rolls may be connected up by suitable gearing and all adjusted simultaneously.
In order to make this Specification more easily intelligible reference is had to the
accompanying drawings in which similar letters of reference denote similar parts
throughout the several views.
Fig. 1 is a vertical section showing the general arrangement of my improved
rolling mills.
Fig. 2 is a cross section on the line
Уу in Fig. 1.
Figs. 3 and 4 show a modified arrangement of the rolls.
Figs. 5 to 10 show various ways of carrying the principle of my invention into
practice.
Referring to Figs. 1 and 2 -The driving pinion a is mounted fast on the driving
shaft of a motor of any suitable kind and engages in the spur gear of various roll
shafts each provided with two universal joints c c and arranged around said driving
pinion. The roll shafts carry conical rolls d d¹ d² d³ the positions of which may
be varied in relation to the bar of iron under treatment, the roll shaft bearings ff
ff being mounted in adjustable screw sleeves e e e¹ e' said sleeves being operated
by screw spindles provided with handwheels g g or as shown at the lower part of
Fig. 1 by means of bevel gearing and handwheel h. When all the roll bearings are
worked in this manner the spindle of wheel may be provided with a chain wheel h¹
the said chain wheels being connected by chain gearing so that all the rolls may
be adjusted equally and simultaneously.
h
The bar of metal to be treated is placed between the rolls d d' d² ds which all
rotate in the same direction, and it will thus have its fibres twisted spirally and the
whole mass be drawn out.
In the device illustrated in Figs. 3 and 4, three conical rolls are employed, the
first set kk'k' being the primary set and the second set 11 12 the finishing rolls.
These rolls may be mounted similarly to those of Fig. 1 and either driven by one
common motor or each set may have separate driving gear.
In the arrangement shown in Fig. 5 both primary m m and finishing rolls n nare
mounted on one and the same shaft. In this case the rolls n n may have a larger
diameter and work with greater pressure than the primary rolls m m and thus
exercise a pull on that part of the metal bar o lying between the two roll sets,
pulling it from the rolls m m.
In Figs. 6 7 8 9 and 10 all the rolls are mounted parallel to each other; in Figs 6

page_text: rolls t t.
and 7 each of the adjustable rolls p r s is provided with one nonadjustable rotary
counter pressure roll t t t whilst the adjustable roll q has two similar counter pressure
In Figs. 6, 7, 9 and 10 by varying the diameter of the rolls, the number
of revolutions of the same or the pressure, the rolling process may be completed by
one passage of the metal under treatment through the rolls. Or as shown in Fig. 8
grooved rolls p q r s may be employed and the metal be passed first through
the coarser grooves and then back through the finer grooves of the first rolls and
thus finished. In each of the devices illustrated in Figs. 6-10 all the rolls are driven
from one motor, the driving shafts being connected to the roll shafts by universal
joints and so arranged that their centre lines would cut or meet on being produced
(Fig. 7).
In the device illustrated in Figs. 6 and 9 plates or hoop iron can be rolled and
finished in one passage through the rolls. In this device the formation of hoops
between the rolls as shown in dotted lines is in no way dangerous as all the rolls
revolve in the direction of movement of the finished iron.
C
In Fig. 10 the metal v under treatment is pressed and conically rolled by means
of the adjustable cylindrical roll w whichis rotated from a motor or the like against
the nonadjustable rotary rolls ¹³ ³, in which case all the latter rolls will
be driven in one direction by the roll w. Or the rolls xx¹²x² can be driven
so that roll w will be caused to revolve by means of the metal bar under treatment.
The devices shown in Figs. 1 2 3 4 5 and 10 are for producing iron of a round
cross section but of any desirable longitudinal section, whilst the devices shown in
Figs. 6 7 8 and 9 roll iron of any desired cross section but of an equal or even
longitudinal section.
Thus any rolling work may be accomplished in one or more passages through the
rolls on one and the same roll frame work and with the same motor by correspond-
ingly altering the rolls, the centre line of the same or the direction of pressure
thereof.
my invention
Having now particularly described and ascertained the nature of
and in what manner the same is performed I declare that what I claim is :-
Driving any number of cylindrical, conical or shaped rolls with the aid of single
or double universal joints c c, from one and the same motor and the arrangement
of the said rolls in such manner that:
a:-The axes of the rolls d d' d² d³ (Fig. 1) k k¹ and 12 (Figs. 3 and 4)
cut the centre line of the driving shaft on being produced;
b:-The axes of the driving shafts cut or meet in one point on being produced,
whilst those of the rolls of various diameters p q r s (Figs. 6 7), p² q₁ r² s ²
(Figs. 8 and 9) or w, x x¹ x² x³ (Fig. 10) do not cut or meet each other on
being produced.
c: The axes of the rolls m n (Fig. 5) meet each other at one point on being
produced whilst those of the driving shafts do not.
d-all rolls are mounted in two or more pivotally arranged bearings ƒƒƒ³f so
that the direction of the axes of all the rolls may be adjusted by means of the
sleeves e e e¹ e¹ substantially as described.
Dated this 13th day of December 1892.
HORN & SON,
Applicant's Agents.