MENTS IN ROLLING-MILLS, AND IN THE MEANS AND APPARATUS OR MACHINERY EMPLOYED IN ROLLING IRON AND STEEL.”
Year: 1879

page_text: PROVISIONAL SPECIFICATION left by William Deighton at the Office of the
Commissioners of Patents on the 21st February 1879.
•
WILLIAM DEIGHTON, of Workington, in the County of Cumberland. "IMPROVE
MENTS IN ROLLING-MILLS, AND IN THE MEANS AND APPARATUS OR MACHINERY
EMPLOYED IN ROLLING IRON AND STEEL.”
My improvements relate to rolling mills, and to the means and apparatus or
machinery employed in rolling iron and steel.
.
The object of my Invention is to economise time-and labour in the operation of
rolling or reducing in sectional area and to the required form masses of iron and
steel.
Firstly. My Invention consists of a double reversing mill, which can be con-
structed substantially as follows :-
Two pairs of rolls are placed on one or more bed plates, and in one set or one
pair of standards, frames, or housings in such a position as that material can be
operated on by both pairs of rolls at the same time. The two pairs of rolls can be
(practically) of the same diameter, and will be driven at varying speeds, so that
each pair of rolls will act on the material without undue strain.
The front pair of rolls can be driven direct from the first motion shaft of the
engine or otherwise. The back pair of rolls can be driven by ordinary and suitable
gearing from the first motion shaft of the said engine, or otherwise, the variation of
the speed of the front and back pairs of rolls being such that the mass of iron or
steel under operation can be thereby reduced by both pairs of rolls at the same
time.
The variation in the speed of the front and back pairs of rolls is or can be obtained
by fixing on the shaft driving the front pair of rolls two wheels of varying size or
diameter, and by placing on the shaft driving the back pair of rolls two loose clutch
wheels of varying size or diameter, the smaller or clutch wheel gearing into the
larger wheel on the shaft driving the front pair of rolls, and the larger clutch wheel
gearing into the smaller wheel on the said front shaft. A sliding clutch of ordinary
construction revolving with the back shaft (by means of keys, feathers, or other-
wise) is fitted with a hand reversing lever, or connected to a piston and rod of a steam
or bydraulic cylinder, and is thereby actuated for the purpose of connecting the
said back shaft with the front shaft through the large or small clutch wheels, by
which means the varying speed of the back shaft and the rolls driven thereby are

page_text: obtained. Instead of the clutch and clutch wheels above described friction discs or
other appliances can be employed for the same purpose.
In working my improved double reverse mill the material will be passed through
both pairs of rolls from front to back; the mill will then be reversed, and. the
material passed through both pairs of rolls from back to front (or the above
described operation can be reversed) until the reduction of the material to the
required size and form is completed.
Secondly. My improvements consist in a combined three-high set of roughing
rolls, and two-high reverse pair of finishing rolls, placed end to end on the same bed
plate, the three-high set of rolls being driven direct from the first-motion shaft of
an engine or otherwise; and the reverse finishing mill being driven by reverse
gearing directly or indirectly from the said first-motion shaft of an engine or other-
wise. My improvements can be carried into effect by driving the middle roll (or
the top or bottom roll) of the three-high set of rolls direct from or by the first
motion shaft of the engine. The two-high pair of reverse finishing rolls are driven
by a main shaft and gearing from the first-motion shaft of the engine, on which
said first-motion shaft a wheel is fixed, which forms part of an ordinary (so called)
five wheel reversing-motion, the said wheel giving motion to the other four wheels,
and together forming the driving gear of the main shaft of the reverse finishing
rolls. To the pair of reverse finishing rolls will be connected a pair of pinions, and
a wheel on the shaft of the bottom pinion will gear into a whool on the main driving
shaft of the said reverse mill, thus completing the connection of the pair of reverse
finishing rolls with the first motion shaft of the said engine.
In working this combined mill the material will be passed forwards and back-
wards through the three-high set of roughing rolls, and when the roughing-down
is completed the materials will be passed through the pair of reverse finishing rolls;
these rolls will then be reversed, and the material will be passed back through them
in the ordinary manner until the operation of rolling the inatorial to the proper size
or form is completed.