Improvements in the Manufacture or Production of Channelled or Troughed Iron, Steel, and other Metals.
Year: 1892

page_text: Date of Application, 22nd Nov., 1892
Complete Specification Left, 22nd Aug., 1893-Accepted, 23rd Sept.. 1893
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture or Production of Channelled or
Troughed Iron, Steel, and other Metals.
I PHILIP ROBINSON, of Park Lane Ironworks, Oldbury, in the County of
Worcester General Roll Turner, do hereby declare the nature of this invention to
as follows:-
My invention relates to the production or formation of channelled or troughed
iron, steel or other metals, primarily of wide sections, in a more simple and efficient
manner than has heretofore been practised.
"
In carrying out the manufacture of one form of my invention, I take a slab,
billet or bloom of metal, and pass the same through rolls, giving unto the same a
cross section somewhat of the figure of a semi-circle, with flanged upper extensions,
and with a shallow gutter or channel coming between them. This prepared slab,
bloom or billet, is, when in a heated state, passed through rolls, and transformed
into a like cross section, but with the flanges extending horizontally, the gutter or
channel deepened, and the metal of the semi-circular part reduced in thickness.
Then, by a further process, the flanges are still further spread out, extended, and
turned downwards to a slight angle, with the middle or trough part also deepened
or spread out, and the thickness of the metal of the walls reduced, hence the section
of a shaped trough, with downwardly inclined flanged sides.
This last named section, whilst still in a heated state, is then passed through a
further pair of rolls, the flanges still further thinned, and extended, and the
V middle part broadened out, and transformed into a shallow and curved trough or
channel with inclined turned down flanges. This section is then subjected to onc
or more further passes through rolls, which straightens out the trough or guttered
part into a wide straight part, and at the same time, displaces the flanges further
back, until they become at right angles to the middle part, hence the formation of
wide sectioned channelled or troughed iron when inverted alike in cross section to a
broadened-out letter U.
The spreading out of the metal for the formation of the middle part of the
channel, and the bending of the flanges to form the sides thereof, may be performed
by intermediate passes through rolls, other than those particularly described.
In the making of a W section, I leave the trough as described in the third
process.
The application of my invention to other similar sections differs in no essential
respect from its application to the sections described.
Dated this 21st day of November 1892.
PHILIP ROBINSON,
By Henry Skerrett,
Agent for Applicant.
COMPLETE SPECIFICATION.
Improvements in the Manufacture or Production of Channelled or
Troughed Iron, Steel, and other Metals.
I, PHILIP ROBINSON, of Park Lane Ironworks, Oldbury, in the County of
Worcester, General 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 :-
My invention relates.to the manufacture or production of channelled or troughed
TU 01

page_text: iron, steel or other metals, particularly of wide sections, in a simpler and more
efficient manner than has heretofore been practised.
In carrying out my invention, I take a slab, billet or bloom of metal in a heated
and soft state, and pass the same through an eye or opening formed between the
acting surfaces of the first part of a set of rolls, giving unto it a cross section
somewhat of the figure of a semi-circle, with flanged upper extensions, and with a
gutter or channel coming between them. This partially operated upon slab, bloom
or billet, is, whilst still in a heated and soft state, passed through a second eye or
opening between a second pair of acting surfaces of the rolls, and transformed into
a length having a like cross section, but with the side flanges spread outwardly and
their planes inclined, the gutter or channel deepened and widened out, and the
metal of the semi-circular bottom part reduced in thickness.
Then, by a further process and passage through the third eye or opening between
the acting surfaces of the rolls, the flanges are still further reduced in thickness,
and extended, and turned downwards to a slight angle, with the middle or trough
part also deepened or spread out, and the thickness of the metal of the walls
reduced, hence the section of a V-shaped trough with inclined sides.
This last-named section, whilst still in a heated state, is then passed through a
further eye or opening formed between the acting surfaces of the pair of rolls, the
flanges still further thinned and extended, and the V middle part broadened out,
and transformed into a shallow curved trough or channel. This section is then
subjected to one or more further passes through further acting surfaces of the rolls,
which straightens out the trough or guttered part into a wide straight part, and, at
the same time, displaces the flanges further back, until they become at right angles
to the middle part, hence the formation of wide sectioned channelled or troughed
iron, steel, or other metal lengths.
The spreading out of the metal for the formation of the middle part of the
channel, and the bending of the flanges to form the sides thereof, may be performed
by intermediate passes through openings between the acting surfaces of rolls other
than those particularly as described.
In the making of a W section, I leave the trough as described in the third
process.
The application of my invention to other similar sections differs in no essential
respect from its application to the sections described.
Figure of the accompanying drawings represents, in front elevation, a set of
two-high rolls suitably formed and channelled for the manufacture or production of
troughed lengths of metal according to my improvements.
Figures 2, 3, 4, 5, 6 and 7 represent the various stages through which the billet
passes in the production of a channelled or troughed length of iron, steel or other
metal.
Thus in Figure 1, A. is the upper roll, and B the lower roll, with the necks a¹, b',
mounted within holsters or housings c, and which rolls are driven by the usual
means.
The upper roll A has a series of he-formations, acting flanges or annular
ribs d, e, f and g, coming opposite to and coincident with, grooves d', e¹, ƒ' and g'
in the lower roll B.
The acting faces of these said he-formations and grooves are placed at suitable
distances apart, forming between them, eyes or rolling passes d², e², f² and g².
h is an ordinary plain roll, of the upper roll A, working within a grooved roll i
of the lower roll B, and by which end he-roll and groove, the finished channelled
or troughed length of metal is produced.
In carrying out the manufacture of channelled iron steel or other metal, I take a
square or other billet, slab or length of metal Figure 2, and when in a heated and
soft state, I pass the same through the eye d', of the acting surfaces d, d, thereby
splitting open the same, and producing a length of channelled or troughed metal of
the section as shown in Figure 3, which section consists of a semi-circular underside
part, having side flanges, and with a gutter or channel running down the middle

page_text: of the topside part, which is slightly inclined downwardly on its two opposite
sides.
This said section Figure 3, is, whilst still in a heated and soft state, passed
through the eye e, of the acting surfaces e, e¹, of the said rolls A and B, thereby
producing the section Figure 4, which consists of a troughed or channelled topside
middle part, with inclined sides and semi-circular bottom.
This said partially formed trough length, is, whilst still in a heated and soft
state, passed through the eye f of the acting surfaces f,f, of the said rolls A
and B, and the channelled section length Figure 5, thereby produced, and which
said section consists of a broad trough upon the middle of the top side, with
opposite inclined flanges and semi-circular underside part, then by a pass of the
said length Figure 5, through the eye g², of the acting surfaces g, g', of the said
rolls A and B, the section length Figure 6 is then produced, consisting of an
inverted trough-shaped figure in cross section, but with the middle of the trough
slightly bowed inwards, or the middle of the top side surface of the length slightly
inward cambered.
The said section length Figure 6 is then passed between the eye h², of the acting
surfaces h, i, of the said rolls A and B, the channelled or troughed iron, steel or
other metal finished length Figure 7 being thereby produced.
Where three high rolls are employed, a corresponding roll to that of A, is placed
below roll B, so that the metal lengths are passed forward and then backwards,
first through the upper pair from front to back and then through the lower pair
(after the said lengths under treatment have been turned over) from back to front
and so on, through the eyes of the whole series made by the acting surfaces or
grooves and coincident he-parts.
It will be seen that the first stages of the fabrication are performed by a clefting
process.
One of the advantages of this invention is that wide iron channels can be made
out of an ordinary square pile instead of a specially built one.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what 1
claim is :-
.
First. In the manufacture of troughed or channelled iron, steel or other metals,
fabricating the same from a bloom, billet or slab successively brought under the
action of a series of acting surfaces of a set of rolls which transform the said bloom,
billet or slab, by a succession of rollings, into a channelled or trough section, in the
ways and by the means substantially as described and set forth.
Secondly. In the manufacture of troughed or channelled iron, steel or other
metals, transforming the same from a bloom, billet or slab of metal in a heated and
soft state, by rolling into a sectional length the same, or essentially the same, as
Figure 3, and transforming Figure 3 into a sectional length the same or essentially
the same as Figure 4, and transforming Figure 4 into a sectional length the same
or essentially the same as Figure 5, and transforming Figure 5 into a sectional
length the same or essentially the same as Figure 6, and then transforming Figure 6
into the finished troughed or channelled sectional length the same or essentially the
same as Figure 7, in the ways and by the means substantially as described and set
forth.
Thirdly. The manufacture or production of channelled or troughed iron of the
sectious as herein described by the splitting or opening-out of the billet, in the
ways and by the process or means substantially as herein described and set forth.
Dated this 21st day of August 1893.
PHILIP ROBINSON,
By Henry Skerrett,
6, Livery Street, Birmingham, Agent for Applicant.