The Conversion of Iron and Steel Angle Bars into Strips or Flat Bars.
Year: 1889

page_text: Date of Application, 9th May, 1889
Complete Specification Left, 10th Feb., 1890-Accepted, 15th Mar., 1890
PROVISIONAL SPECIFICATION.
The Conversion of Iron and Steel Angle Bars into
Strips or Flat Bars.
I, JOHN COOKE, of Ashleigh, Linthorpe, Middlesbrough, in the County of York,
Commission Agent, do hereby declare the nature of this invention to be as follows :-
My Invention relates to the conversion of iron and steel angle bars into strips or
flat bars for the purpose of obtaining a merchantable article such as strips to be
employed in the manufacture of nails and all kinds of tube strips.
Scrap or steel angle bars, such as short lengths or crop ends, are now returned
to the furnace as so much scrap to be remelted, owing to the difficulty in otherwise
utilising them.
The object of my invention is to convert iron or steel angle bars into flat bars or
strips from which they can be readily reduced to flat bars or strips of merchantable
dimensions, such as the strips required in the manufacture of nails and tube strips or
for the like purposes.
In carrying iny invention into effect 1 flatten one end of each angle bar so that
the said end can be introduced into the gate between the top and bottom rolls of a
rolling mill In order to effect this I flatten one end of the angle bar in the cold
state sufficiently to insert it between the rolls, the angle bar being subsequently
heated to enable it to be rolled flat, or the angle bar may be similarly flattened at one
end in the hot state in which it is passed through the rolls to be rolled flat. The
flat end is introduced between the rolls, the grip thus obtained being sufficient to
draw the angle bar through a gate of the proper dimensions, thus flattening out the
sides of the angle bar to a flat bar of equivalent section. The angle bar thus
converted to a strip or flat bar can then be readily reduced to any required section to
render it a merchantable article, such for instance when rolled to 15 inch guage or
thicker strips to be employed in the manufacture of nails and tube strips
It is of course obvious that the above described process is equally applicable to
angle bars of either iron or steel, and may be used for any suitable purpose without
departing from the nature of my invention.
Dated the 8th day of Mon 1280
COMPLETE SPECIFICATION.
The Conversion of Iron and Steel Angle Bars into
Strips or Flat Bars.
I, JOHN COOKE, of Ashleigh, Linthorpe, Middlesbrough, in the County of York,
Commission Agent, 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 conversion of iron and steel angle bars into strips or
flat bars for the purpose of obtaining merchantable articles such as strips to be
employed in the inanufacture of nails and all kinds of small tubes, and consists
in flattening or compressing one end of each angle bar so that the said end can be
introduced into the gate between the top and bottom rolls of a rolling mill by
which the angle bars are rolled out flat and afterwards cut up into the requisito
lengths and divided into two or more strips ready to be manufactured into nails, small
tubes and similar merchantable articles.

page_text: Hitherto it has been the practice to return scrap or steel angle bars, such as short
lengths or crop ends, to the furnace as so much scrap metal to be remelted owing to
the difficulty and expense in otherwise utilizing them.
By my invention iron and steel angle bars may be converted into flat bars or
strips from which they can be readily reduced to strips of merchantable dimensions
such as are required in the manufacture of nails and small tubes or for the like
purposes.
And in order that my invention may be clearly understood and readily carried
into effect I will now proceed to describe the same with reference to the annexed
sheet of drawings, in which Figure 1 is a front view of a collar and groove rolling
mill suitable for effecting the object of my invention, and Figure 2 is a corresponding
transverse view with the grooved rolls shown in section taken on line X X of
Figure 1, and with the flat end of an angle iron A introduced between them.
An angle iron in its ordinary condition cannot be passed through the rolls owing'
to the impossibility of inserting the end of the angle bar between the rolls.
overcome this difficulty by flattening or compressing about three inches of length
of one end of the angle bar sufficiently to insert it between the rolls of an ordinary
collar and groove rolling mill. This may be done by any suitable means and if
sufficient power be applied the end may be flattened in the cold state, such as by
pressure exerted by a machine in which the mechanical action is similar to an ordinary
punching or shearing machine or by the blow of a steam hammer. When the
angle bars have had one end flattened or compressed and have been subsequently
heated, I insert the flattened end between the rolls, the grip thus obtained being
sufficient to draw the rest of the angle bai through a gate of the proper dimensions,
thus rolling out the sides of the angle bar to a flat bar of equivalent section,
thus a 3 by 3 inch angle bar rolls out to a 5 inch flat bar. Angle bars thus
converted to flat bars can then be readily reduced to any required section to
render them merchantable articles, such as for instance when rolled to 15 inch
gauge or the like sections employed in the manufacture of nails and small tubes.
Angle bars may of course have the end flattened as herein before described in
the hot state in which they are passed through the rolls.
It is of course obvious that the above described process is equally applicable
to angle bars of either iron or steel and that the flat bars obtained thereby may
be used for any suitable purpose.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be carried into effect, I declare that
what I claim 18 :-
The conversion of iron or steel angle bars into strips or flat bars by flattening
or compressing one end of each angle bar and passing it through suitably
constructed rolls, substantially as described
11:
قيم
רד
1000
LAWYE
V LAWAY
G. J. CLARKSON,
Stockton-on-Tees, Agent for the Applicant.