دخانه ts, mercant strips, Armour Plates, and other similar Sections of Iron and Steel.
Year: 1885

page_text: دخانه
ts, mercant strips, Armour
Plates, and other similar Sections of Iron and Steel.
I, JOSEPH GUEST of Bearwood Road Smethwick, in the County of Stafford, Roll
Turner, do hereby declare the nature of my invention for "IMPROVEMENTS IN
ROLLING PLATES, SHEETS, MERCHANT STRIPS ARMOUR PLATES AND OTHER SIMILAR
SECTIONS OF IRON AND STEEL to be as follows:-
This invention consists in an improved method of rolling the various descriptions
of iron and steel mentioned, from iron piles, steel ingots or old rails or similar
sections of iron and steel. A square or rectangular iron pile when heated in an
ordinary mill furnace, is then taken or passed through a pair of rolls so shaped as
to make three deep indentations, and at the same time slightly spreading the four
sides into something like the letter M or W. Sometimes the form is made rounded
at the top and bottom of the indentations.50 that the shape is almost semicircular.
Of course other shapes or modifications would sometimes be necessary without
departing from the principle of the invention. Also in wide sheets, or armour
plates it would sometimes be desirable to increase the number of the indentations,
while for other purposes the pile might be rolled with only one indentation, angular
or semi circular in shape, as may be most convenient. While passing through a
suitable number of grooves in the rolls, the section would be gradually flattened
until the angles assume a very obtuse form when it would be transferred to a set
of three high rolls, through which it would be passed, until made quite flat and
reduced to the thickness required. For thick sheets this would be sufficient, altho
sometimes we should prefer to pass them through ordinary chilled sheet rolls:
When thinner sheets are required the sheets as prepared above, are cut up into
lengths suitable for width of sheet required. They are then passed through
ordinary chilled sheet rolls generally without reheating unless the gauge is so thin
as to require it.
It is evident that the process above described would be performed so quickly
that the sheet would be sufficiently hot to allow it to be cut into pieces of suitable
lengths, and then passed through the sheet rolls before the iron becomes too cold
to allow it to be properly manipulated. When new mills are therefore laid down

page_text: for rolling iron by this process, the strip rolls would run at a greater speed than the
sheet rolls, and therefore one strip mill to reduce the iron piles to strips, would find
employment for two or more sheet mills The necessary heating furnaces for heating
the piles would be placed conveniently near to the strip mill and the strips after
being cut into suitable lengths to form the width of the sheets would be handed on
to the various sheet mills waiting to receive them these mills being arranged in
such positions as would be most suitable for the purpose. Owing to the much
greater length and width the strips could be rolled by this process it is clear that
there would be a great saving in scrap, or waste iron, in working.
The method of proceeding with square or rectangular sheet ingots is exactly
same as above described. The ingots themselves however may be similar in
section to the M or W, semi circular or other, shape which would facilitate the
rolling.
I-
"
When it is desired to roll old rails or other similar sections or classes of old iron
or steel the following plan is adopted. For double headed rails the two heads of
the rails are flattened to make them almost uniform in thickness with the web of
the rail, and the web is at the same time made convex or angular in shape by suit-
able rolls, so that the shape resembles the M, W, or semi circular shape above
described. For old bridge rails the side are made gradually to assume an obtuse
angle, and the thickness of the rail would at the same time gradually be made
uniform throughout. In both cases the plate would be subsequently treated as
above,

page_text: Improvements in Rolling Plates, Sheets, Merchant Strips, Armour
Plates, and other similar Sections of Iron and Steel.
I, JOSEPH GUEST, Bearwood Road, Smethwick, Staffordshire, Roll Turner, 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:
This Invention consists in an improved method of rolling plates, sheets, merchant
strips, armour plates, and other similar sections from iron piles, steel ingots or old
rails respectively. or from other similar sections of iron and steel.
A square or rectangular iron pile when heated in an ordinary mill or other
furnace is then taken or passed through a pair of rolls so shaped as to make three.
deep indentations or longitudinal grooves, and at the same time slightly spreading
the four sides into something like the letter M or W. Sometimes the form is
made rounded at the top and bottom of the indentations so that the shape is almost
semicircular; of course other shapes or modifications would sometimes be necessary
without departing from the principle of the invention. Also in wide sheets or
armour plates it would sometimes be desirable to increase the number of the
indentations, while for other purposes the pile or ingot might be rolled with only
one indentation angular or semicircular in shape as may be most convenient. While
passing through a suitable number of grooves in the rolls the section would be
gradually flattened until the angles assume a very obtuse form when it would be
transferred to a set of two or three high rolls through which it would be passed
until made quite flat and reduced to the thickness required. For thick sheets this
would be sufficient although sometimes I should prefer to pass them through.ordinary
chilled sheet rolls. When thinner sheets are required the sheets as prepared
above are cut up into lengths suitable for width or length of sheet required. They
are then passed through ordinary chilled sheet, rolls generally. without reheating
unless the gauge is so thin as to require it.
On the accompanying drawing Fig. 1 represents.in cross-section an ordinary iron
pile or steel ingot and Figs. 2, 3, 4 and 5 illustrate progressive stages in the manu-
facture of sheets, strips or plates from the pile or ingot illustrated by Fig. 1; Fig. 6
represents in front elevation on a smaller scale part of a pair of rolls for rolling the
same; Fig. 7 is a cross-section of an ordinary double headed rail which is required
to be rolled into a flat strip and Figs. 8, 9 and 10 illustrate progressive stages in
the inanufacture of a flat strip from the rail illustrated by Fig. 7; Fig. 11 repre-
sents in front elevation on a smaller scale part of a pair of rolls for rolling the rail
illustrated by Fig. 7 into the flat strip illustrated by Fig. 10; Fig. 12 is a cross-
section of an ordinary bridge rail which is required to be rolled into a flat strip
and Figs. 13 and 14 illustrate progressive stages in the manufacture of a flat strip
from the rail illustrated by Fig. 12 and Fig. 15 represents in front elevation on a
smaller scale part of a pair of rolls for rolling the rail illustrated by Fig. 12 into
the flat strip illustrated by Fig. 14.
a

page_text: In rolling plates, sheets, strips and other similar sections of iron and steel I take
a square or rectangular iron pile or steel ingot a (it having been previously heated
in a suitable furnace) and pass it in succession through the gates 6 and a of the
rolls 8, t, which are so shaped as to make three deep indentations or longitudinal
grooves f f f³, and by slightly spreading the four sides to roll it into a bar of
the cross-section shewn by Fig. 3 which is something like the letter M or W except
that the angles are preferably rounded off. The bar is then passed through the
gates d and e so as to gradually flatten it until the angles f¹,f,ƒ³, assume a very
obtuse form (see Fig. 5) when it is rolled flat and reduced to the thickness required
by means of ordinary rolls which can (except for very thin sheets) generally be
accomplished without reheating.
It will be evident that the process above described can be performed so quickly
that the sheet will be sufficiently hot to allow it to be cut into pieces of a suitable
length and then passed through the sheet rolls before the iron becomes too cool to
allow it to be properly manipulated. When therefore new rolls are laid down for
rolling iron or steel by this process, the strip rolls would run at a greater speed
than the sheet rolls and therefore one strip mill to reduce the iron piles to strips
would find employment for two or more sheet mills. The necessary heating
furnaces for heating the piles would be placed conveniently near to the strip mill
and the strips after being cut into suitable lengths to form the width of the sheet
would be handed on to the various sheet mills waiting to receive them, these mills
being arranged in such positions as would be most suitable for the purpose. Owing
to the much greater length and width the strips can be rolled by this process it is
clear that there is a great saving in scrap or waste iron in working.
It will be evident that the angular shape of the indentations or grooves f¹ƒ³, ƒ³,
may be modified without departing from the spirit of my Invention as they may
for instance be semicircular or semi-elliptical and their number increased as is
required when rolling armour plates and other wide plates and sheets.
When rolling plates, sheets or strips from steel ingots the ingots themselves may
be similar in cross-section to the letter M or W (see Figs. 2 and 3) the indentations
or grooves being cither angular or rounded thus requiring less rolling than if the
ingots were made square or rectangular as above described with reference to Fig. 1.
In rolling the double headed rail g represented in cross-section by Fig. 10 a pair
of rolls are employed having grooves as shewn by Fig. 11. The rail g is successively
passed through the gates h and which flatten its heads and make them almost
uniform in thickness with the web of the rail (see Figs. 8 and 9) and the web is at
the same time made convex or angular in shape so that the cross section resembles
the letter M or W or semicircular or approximately semicircular shape above
described. The strip or plate Fig. 9 is then flattened by being passed through the
gatej and finished if required by ordinary rolls.
I roll old bridge rails such as ke Fig. 12 into flat strips or plates as illustrated in
cross section by Fig. 14 by employing a pair of rolls (see Fig. 15) having grooves
which form a gate which will cause the sides of the rail to gradually assume an
obtuse angle (see Fig. 13) and. the thickness of the rail to be made uniform
throughout and flattened by being passed through the gate m when it can be cut
into lengths and finished by ordinary rolls if required.
I have found the number of gates through which the various bars have to pass
as represented on my drawing to answer well in practice but I do not limit myself
to the numbers shewn as greater or smaller numbers will have to be employed
according to the shape of the pile, ingot or old rail and the section of finished iron
or steel required to be produced.
Having now particularly described and ascertained the nature of my said
Invention, and in what manner the same is to be performed, I declare that what
I claim is:
1st The improvements in rolling plates, sheets, merchant strips, armour. plates 5
and other similar sections of iron and steel hereinbefore described with reference.to

page_text: Figs. 1, 2, 3, 4, 5 and 6 of the accompanying drawing, that is to say,
first passing
the pile or ingot through rolls which spread the metal laterally by forming three
or more deep indentations or longitudinal grooves therein and then gradually
flattening the indentations or grooves as hereinbefore described and illustrated.
2nd The improvements in rolling double headed rails into flat plates or strips
herein before described with reference to Figs. 7, 8, 9, 10 and 11 of the accom-
panying drawing, that is to say, passing the rail through rolls which cause it to
gradually spread laterally and to assume the shape of the letter M or W or approxi-
mately the shape of the letter M or W and then rolling out the bar thus formed
into a flat plate substantially as hereinbefore described and illustrated.
3rd The improvements in rolling bridge rails and flat plates or strips herein-
before described with reference to Figs. 12, 13, 14 and 15 of the accompanying
drawing, that is to say, passing the rail through rolls which cause the sides to form
an obtuse angle and then rolling out the bar thus formed into a flat plate substan-
tially as herein before described and illustrated.