Improvements in the Method of and Means for Manufacturing Metallic Bedstead Angles, and Angles applicable for other Purposes.
Year: 1895

page_text: Date of Application, 16th Jan., 1895
Complete Specification Left, 16th Oct., 1995-Accepted, 4th Jan., 1896
PROVISIONAL SPECIFICATION.
Improvements in the Method of and Means for Manufacturing
Metallic Bedstead Angles, and Angles applicable for other
Purposes.
I, WILLIAM BROWNHILL of Birchills Hall Walsall in the County of Stafford
Iron Master do hereby declare the nature of this invention to be as follows :-
:―
In the manufacture at the present time of bedstead angles (that is to say the
angle irous) and other angles it is usual to produce them with flat sides, sometimes
a solid rib or projection is formed on the external surface of the sides of the angles,
in order to add to their rigidity.
My invention consists in producing an angle which is lighter and yet more rigid
and stronger than those now in use, 1 attain this object by applying the principle
of corrugation, viz. by corrugating the angles longitudinally in the course of
manufacture. In order to produce a corrugated angle, in the first instance I roll a
steel bloom, billet or bar, or an iron billet, bloom, or pile, into a flat strip, of the
required thickness of the angle. As the steel or iron strip (as the case may be)
leaves the rolling mill (which may be of the ordinary kiud) it is instantly taken
hold of and passed through the corrugating machine, which is placed in any
convenient position for receiving the strip as it leaves the rolling mill.
The corrugating machine may be constructed in the following, or other similar
manner, that is to say.
The strip is passed through a suitable guide and enters between a pair of
rolls, one of which has a convex projection around the periphery of the roll,
which is turned exactly of the same shape as the inner surface or section of
the angle, and the corresponding roll is turned with a concave recess exactly of
the same shape and dimensions as the external surface or section of the angle.
The angle iron or bar having been thus formed, then passes through a suitable
die or pair of rolls, or a die and pair of rolls combined, and is thrown off from the
machine as a perfect corrugated angle ready for cutting up into the various lengths
required.
By this method of producing corrugated angles I am enabled to turn them out
much lighter and therefore cheaper than the flat sided ones at present in use, but at
the same time in consequence of their being corrugated they will be more rigid and
therefore better able to bear a strain in any direction without, bending.
It will be at once seen that the application of my invention to angles used
either in the manufacture of bedsteads, or in ship building, or in roofing, or other
constructive purposes will have the effect of considerably lessening the cost whilst
adding to the rigidity and consequently the strength of the same.
An incidental benefit to be derived from the above manufacture is the saving
in freight in consequence of the objects made from corrugated angles being as
stated much lighter than those made after the old fashioned form of heavy sided
flat angles.
Instead of using one pair of rolls, I can attain the same object by using two or
more pairs, or I may produce the corrugated angles by having the rolls turned in
the ordinary rolling mill of such shape as will form the corrugations.
In the above named process of manufacture it is immaterial to the principle of

page_text: my invention whichever form of roll is placed working at the top or the bottom as
the same result will be obtained.
Dated this 15th day of January A.D. 1895.
EDWD. J. PAYNE & SON,
104, Colmore Row, Birmingham, Agents for the Applicant.
Improvements in the Method of and Means for Manufacturing
Metallic Bedstead Angles, and Angles applicable for other
Purposes.
I, WILLIAM BROWNHILL of Birchills Hall Walsall in the County of Stafford
Iron Master 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 :-
Hitherto in the method of manufacturing metallic bedstead angles (that is to
say the angle irons and other similar sections) and other angles, it has been the
usual practice to produce them with flat surfaces, and sides, sometimes a solid rib
or projection is formed on the external surface of the sides of the angles in order
to add to their rigidity.
My invention consists in producing an angle which is lighter and yet more
rigid and stronger than those now in use, and I attain this object by applying
the principle of corrugation viz. by corrugating the angles longitudinally in the
course of their manufacture. I will firstly describe the formation of my improved
angles. In the accompanying drawings Sheet 1 I have shewn the corrugated angle
irons in some of the positions in which they may be used in the course of
construction to which they may be applied.
In order to produce a corrugated angle, in the first instance I roll a steel bloom,
billet, or bar or an iron bloom, billet, or pile, into a flat strip of a sufficient width
to admit of the corrugations being formed therein and of the required thickness of
the angle iron.
As the steel or iron strip, as the case may be, leaves the rolling mill, which
may be of the ordinary kind, it is instantly taken hold of, and passed through a
corrugating machine which is placed in any convenient position for receiving the
strip as it leaves the rolling mill, or strip heating furnace.
In the drawings Figure I. Sheet 1. represents in perspective a corrugated angle
iron produced as above described for use either in the manufacture of bedsteads, or
in ship building, or in roofing, or other constructive purposes.
Figure 1 represents an end or sectional view of same.
Figures III. and IV. represent in perspective precisely similar corrugated angle
irons shewing different positions in which they may be used in relation to various
requirements as hereinafter referred to.
It will be seen that the part marked A. is the principal or larger corrugation
whilst B. are somewhat smaller corrugations in the surface and sides of the angle
iron, or the corrugations may be all of the same size, as occasion may require.
For bedsteads and other purposes the corrugated angle irons as in the position
shewn in Figure 1. will be found effective though sometimes I may find it
expedient to apply the corrugated angle by placing the same with the convex
surface A of the angle uppermost, so that it forms a kind of girder section as shewn
in Figure III. this, when used for bedsteads, may have the studs for the laths, or
other methods of attachment for the wire mesh bed bottoms, and the like, inserted
in the convexity A. of the corrugation of the angle.
Or by placing the corrugated angle with the concavity C. uppermost as in

page_text: Figure IV. I produce a section of angle iron that will be round very erective.
as a support and means of attachment for spring mattresses to the bedsteads,
and for which purpose I may construct the outer frame, or sides, or ends, of
the spring mattress so that the said frame may be firmly fitted into the concavity C.
and securely retained therein.
Referring to Sheet 2 of the drawings
Figure V represents a top view of the corrugating machine. Figure VI is an
end elevation of same.
Figure VII shews to a smaller scale the arrangement of the train of cog wheels
(in outline) for actuating the machine.
Figure VIII represents a top and side view of the guide.
Figure X represents one pair of the rolls in outline.
The machine may be constructed in the following or other suitable manner.
Similar letters of reference indicate similar parts upon the drawings.
A bed (a) carries holsters or standards (b) which support the said
rolls (c) (d) (c) (d) carried by their spindles (e) with the journals (f) fitting
over the bearings (1) and kept in place by adjusting screw pins (g). (h) is a
guide situated horizontally between the rolls supported from the bed a or fixed
to the machine in any suitable manner and retained in place by screw pins (g¹), a
channel guide () leads to the rolls with friction roller (j) and guide box (k).
(1) (1) (12) are the train of cog wheels forming part of the necessary gearing.
Both pairs of rolls are of the same formation.
These parts in combination constitute the corrugating machine which is driven
or actuated by motive power imparted by an engine a fly wheel, speed wheels, and
driving shaft, but inasmuch as these latter have no special novelty it is superfluous
to shew them as they may be of the ordinary kind the power being transmitted to
the cog wheels (1) (1) at (2) the driving cog wheel by a driving shaft in connection
tberewith or the power may be directly from an engine or other means.
As stated the metal strip whilst hot and pliable and from which the corrugated
angle is to be made is taken direct from the rolling mill or strip heating furnace
and is passed along the channel guide (i) over the friction roller () and into the
mouth of the guide box (k) this places the strip between the pair of shaping
rolls (c) (d) one of which (d) has a deep convex bead or projection around the
centre of the periphery of the said roll and which is turned exactly of the same
shape as the inner surface or section of the angle iron, upon each side of the bead
the roll is of a concave or semi-concave form, the corresponding roll (c) is turned
with a deep concave centre recess with a convex or semi-convex bead or projection
upon each side of same as shewn exactly of the same shape and dimensions as the
external surface or section of the angle iron or bar, the angle iron having been thus
formed in its passage through the shaping rolls (c) (d) passes onwards through
the guide (4) and between the second pair of rolls (c) (d) and is then thrown off
from the machine as a perfect corrugated angle iron of the section shewn in large
scale drawing Figure IV Sheet 1 and is ready for cutting up into the various
lengths required.
The use of the guide (h) and second pair of rolls (c) (d) may be optional the
main object being to keep the corrugated augle perfectly straight after it has been
formed, though sometimes I may dispense with the said guide or second pair of
rolls, or both, I can however attain the same object by using more than two pairs
of rolls or similar arrangements, or I can produce the angles by turning the rolls in
the ordinary rolling mill of such a shape as will form the corrugations, or by the
use of a die and friction rollers.
In the above process of manufacture it is immaterial to the principle of my
invention whichever form of roll is placed above or below as the same result will
be obtained.
By the above described or other suitable means for producing corrugated angles,
I am enabled to turn them out much lighter and therefore cheaper than those
having flat surfaces and sides as at present in use. Moreover in consequence of their

page_text: being corrugated, they will be more rigid and therefore better able to bear a strain
in any direction without bending.
It will be obvious that the application of my invention to angles used in the
manufacture of bedsteads or in ship building, roofing or other constructive purposes
will be of considerable advantage.
Au incidental benefit derivable from the principle of my invention is the saving
in freight which is an important factor, especially in those countries where the
customs duties are levied at a fixed rate per cwt.
I do not limit myself to the precise arrangement herein described in the number
of corrugatious or their configuration or to the precise method herein set forth of
constructing the corrugating machine as I may vary the same to suit different
requirements both in the manufacture and in the product.
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 I
claim is :-
:-
Firstly. In the manufacture of metallic bedstead angles, and angles for other
purposes, the application of the principle of corrugation to the said bedstead angles,
and other angles, or similar sections for bedsteads and other constructive purposes
substantially as herein set forth and described.
Secondly. The application of the principle of constructing metallic bedsteads by
the use of corrugated angles and other similar sections in conjunction with the
usual accessory parts appertaining thereto as herein set forth and described.
Thirdly. I claim in a machine for the manufacture of corrugated angle irons or
bars for metallic bedsteads and other purposes the particular formation and
arrangement of the rolls, consisting of the pair or pairs of rolls as shewn, the one
roll having a convex bead or projection around the centre of its periphery the
remaining portion of the roll being concave or semi-concave upon each side, and its
corresponding roll having a concave centre or recess turned around same the
remaining portion being convex or semi-convex upon each side and the manner in
which they work in conjunction with each other, and in combination with the
other parts as shewn and described and for the purpose as herein set forth.
Fourthly. I claim, forming corrugated angle irons from the flat strip by
machinery such as described or other suitable means whereby they are corrugated
and the sides thereof pressed into the required angular shape at the same operation
as set forth and described.
EDWD. J. PAYNE & SON,
104, Colmore Row, Birmingham, Patent Agents for the Applicant.