IMPROVEMENTS IN MACHINES FOR STRAIGHTENING AND PLANISHING ROLLED IRON
Year: 1868

page_text: LETTERS PATENT to Edward Hogg, of Gateshead, in the County of
Durham, Engineer, for the Invention of "IMPROVEMENTS IN MACHINES
FOR STRAIGHTENING AND PLANISHING ROLLED IRON."
PROVISIONAL SPECIFICATION left by the said Edward Hogg at the
Office of the Commissioners of Patents, with his Petition, on the
16th November 1868.
I, EDWARD HOGG, of Gateshead, in the County of Durham, Engineer,
do hereby declare the nature of the said Invention for "IMPROVEMENTS IN
MACHINES FOR STRAIGHTENING AND PLANISHING ROLLED IRON," to be as
follows:-
My Invention consists in the use of steel or chilled cast-iron frictional
rollers suited to the shape of iron required to be straightened and
planished, such rollers being arranged so as to admit of the iron under
operation being passed through them in a straight line, the pair of
rollers in the centre of the machine being horizontal, and having a pair
of vertical rollers placed one over the other at a suitable distance on
each side of the said pair of central rollers. The horizontal central

page_text: rollers are coupled by toothed wheels, one of which on the vertical shaft
of one of the said rollers is driven by suitable gearing from the main
shaft. The other roller is adjustable as required by means of a screw;
the top vertical rollers are also adjustable.. When the iron is passing
through the rollers jets of water are applied round the outer surface
thereof whilst hot until a hard, even, and perfect surface is obtained
during the time compression takes place; this is effected by means of
a perforated tube on each side of the central rollers, through which tube
the iron is passed to and fro until it is duly planished. A reversing
motion is adapted to cause the iron to pass backwards and forwards until
the fibres are perfectly closed and the outer skin planished as required,
which will be completed at the same heat as when rolled and cut to
lengths from the saws. The reversing motion is effected by means of
belt sheaves connected with the first motion shaft, where a pair of double
engines with reversing motion or slot links could be applied.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Edward Hogg in the Great Seal Patent Office
on the 15th May 1869.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, EDWARD
HOGG, of Gateshead, in the County of Durham, Engineer, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Sixteenth day of November, in the
year of our Lord One thousand eight hundred and sixty-eight, in the
thirty-second year of Her reign, did, for Herself, Her heirs and suc-
cessors, give and grant unto me, the said Edward Hogg, Her special
licence that I, the said Edward Hogg, my executors, administrators,
and assigns, or such others as I, the said Edward Hogg, my executors,
administrators, and assigns, should at any time agree with, and no others,
from time to time and at all times thereafter during the term therein
expressed, should and lawfully might make, use, exercise, and vend,
within the United Kingdom of Great Britain and Ireland, the Channel
Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN MACHINES
FOR STRAIGHTENING AND PLANISHING ROLLED IRON," upon the condition
(amongst others) that I, the said Edward Hogg, my executors or
administrators, by an instrument in writing under my, or their, or one

page_text: of their hands and seals, should particularly describe and ascertain the
nature of the said Invention, and in what manner the same was to
be performed, and cause the same to be filed in the Great Seal Patent
Office within six calendar months next and immediately after the date
of the said Letters Patent.
NOW KNOW YE, that I, the said Edward Hogg, do hereby declaro
the nature of my said Invention, and in what manner the same is to
be performed, to be particularly described and ascertained in and by the
following statement, reference being had to the Drawings hereunto
annexed and to the letters and figures marked thereon (that is to
say) :-
My Invention of "Improvements in Machines for Straightening and
Planishing Rolled Iron" consists in the use of steel or chilled cast-iron
frictional rollers suited to the shape of iron required to be straightened
and planished, such rollers being arranged so as to admit of the iron
under operation being passed through them in a straight line, the pair
of rollers in the centre of the machine being horizontal, and having a
pair of vertical rollers placed one over the other at a suitable distance
on each side of the said pair of central rollers. The horizontal central
rollers arc coupled by toothed wheels, one of which on the vertical shaft
of one of the said rollers is driven by suitable gearing from the main
shaft. The other roller is adjustable as required by means of a screw;
the top vertical rollers are also adjustable. When the iron is passing
through the rollers jets of water are applied round the outer surface
thereof whilst hot until a hard, even, and perfect surface is obtained
during the time compression takes place; this is effected by means of
a perforated tube on each side of the central rollers, through which tube
the iron is passed to and fro until it is duly planished. A revorsing
motion is adapted to cause the iron to pass backwards and forwards
until the fibres are perfectly closed and the outer skin planished as
required, which will be completed at the same heat as when rolled and
cut to lengths from the saws. This reversing motion is effected by
means of belt sheaves connected with the first motion shaft, where a
pair of double engines with reversing motion or slot links could be
applied.
Having thus stated the nature of the said Invention I will proceed to
describe it more particularly by reference to the accompanying Drawings,
in which is represented a machine of the kind referred to.

page_text: DESCRIPTION OF THE DRAWINGS.
Fig. 1 is a plan or horizontal view of the machine; Fig. 2 is a
sectional elevation; Fig. 3 is an end sectional elevation; and Fig. 4 is
an elevation of a frame and pair of vertical guide rollers. In these
several Figures the same letters of reference indicate corresponding
parts.
A, A, are the standards of the machine; B is the main driving shaft
from which motion is communicated through the bevil gear C and spur
gear D to the vertical shaft E, on which is fixed the horizontal steel or
cast-iron chilled roller F, which is coupled to a corresponding roller G
by means of the toothed wheels H, H; by this means motion may be
communicated to the pair of rollers F, G, from the shaft B. The roller G
is adjustable as to its distance from the roller F by means of a screw I,
as shewn. J, J, are two pairs of vertical guide rollers arranged with
one pair on each side of the central rollers F and G, and so as to be in
a line with the space between these rollers in order to admit of their
carrying the metal under operation to and from the central rollers F
and G. Each pair of the vertical rollers J, J, are arranged with one
roller over the other, the upper roller being adjustable, as shewn.
K (Fig. 4) is a hand wheel with gearing L for the purpose of forcing
the iron backwards and forwards into or between the central or hauling
rollers F and G.
By means of the foregoing arrangement of parts the iron may be
passed to and fro between the central rollers F and G, being carried
thereto and received therefrom on each passage by the outside rollers J, J.
The perforated tubes through which the iron passes, in order that it
may have water constantly applied to it during the operation, are not
shewn in the Drawing, but the arrangement may be readily understood
without representation. The tubes or other means of applying water as
required are placed on each side of the central rollers F and G. The
belt sheaves for the reversing motion are not shewn, but they are
connected to the shaft B, to which a pair of double engines with
reversing motion could be applied.
The arrangement of mechanism above described is adapted for
straightening and planishing steel as well as iron, the process in either
case being the same.
Having thus described the nature of the said Invention, and in

page_text: what manner the same is to be performed, I hereby declare that what I
claim as of my Invention is, the arrangement and construction of
straightening and planishing machines with central horizontal steel or
chilled cast-iron frictional rollers suited to the shape of iron required,
such rollers being combined in the manner described with two pairs of
vertical guide rollers, and with suitable apparatus for applying jets of
water round the iron whilst hot, and with a reversing motion so as to
admit of the required straightening and planishing being completed at
one heating of the iron, as herein-before described.
In witness whereof, I, the said Edward Hogg, have hereunto set
my hand and seal, the Eighth day of May, in the year of our
Lord One thousand eight hundred and sixty-nine.
Witness,
GEORGE RICHARD Cox,
Gateshead-on-Tyne,
Agent.
EDWARD HOGG. (L.S.)