IMPROVEMENTS IN THE MANUFACTURE OF PILES OF IRON OR STEEL OR OF IRON AND STEEL FOR THE MANUFACTURE OF RAILS, ANGLES, AXLES, TYRES, SHAFTS, AND OTHER ARTICLES
Year: 1868

page_text: PROVISIONAL SPECIFICATION left by John Griffiths and Joshua
Jeavons at the Office of the Commissioners of Patents, with their
Petition, on the 4th of April 1868.
We, JOHN GRIFFITHS, of Chesterfield, in the County of Derby,
Manager at Sheepbridge Ironworks, and JOSHUA JEAVONS, of Sheffield,
in the County of York, Manager of the Atlas Ironworks, do hereby
declare the nature of the said Invention for "IMPROVEMENTS IN THE
MANUFACTURE OF PILES OF IRON OR STEEL OR OF IRON AND STEEL FOR THE
MANUFACTURE OF RAILS, ANGLES, AXLES, TYRES, SHAFTS, AND OTHER ARTICLES,"
to be as follows:-
Our said Invention consists in building up in the manner herein-
after described iron or steel or iron and steel into piles for the manu-
facture of rails, angles, axles, tyres, shafts, and bars of other sectional
forms and for other purposes.
We make the exterior of the pile of four bars or plates, the top and
bottom bars overhanging or embracing the side bars and holding them

page_text: in their places. The inner faces of the overhanging edges of the
top and bottom bars are bevilled, and the edges of the side bars when
the interior of the pile is made of several pieces are also bevilled. to
fit against the bevilled faces of the top and bottom bars, or top or
bottom bar where only one bar is used on top or bottom, and so form
what is commonly known as a scarf joint. When the interior of the
pile is made of one bar or bloom the external side bars or plates
described are dispensed with, and the edges of the internal bar or
bloom are bevilled to fit against the bevilled edges of the top and
bottom bars or top or bottom bar. The exterior. part of the pile we
make into the requisite. shape desired by rolling, or in case of stecl
by casting or rolling. The interior of the pile is made up as before
described of several parts or of one bar or bloom, but when made in
parts the said bars or scrap is so arranged as to suit the particular
manufacture to which the bar is to be applied. When the interior
of the pile is wholly of iron or wholly of steel, the arrangement is
not of much consequence, but when the pile is made partly of iron
and partly of steel (and the interior is composed of more than one
piece) we, prefer to leave the pile hollow in the centre, in order that
in raising the pile to welding heat the steel shall be exposed as short
a time as possible to the action of the fire. When the centre of the
pile is only of one piece we prefer. to put it in the furnace a short
time before the top and bottom or cither of them is added to it.
When the external part of the pile is wholly or partially of steel, and
tho internal part or parts of the pile of scrap, we arrange them in such
manner as is best adapted for the purpose required, but by preference
we make, the pile hollow in the centre to permit the mass being raised to
a more uniform welding heat, and preventing injury to the external parts.]
When the top or bottom or both of them are made of steel we prefer
to make a rib in the centre of the interior part of such depth as the
In the case of
purpose for which it is required may necessitate.
forgings, of an angular or circular form for piston rods, shafts, and
such like purposes requiring a hard external surface, or the combining
of the rigidity and stiffness of steel. with the fibrousness and toughness
of iron, we make the external part of two or more segments with
scarf joints as before described of steel, and fill the internal part with
bars, scrap, or other suitable form of iron. Or the pile in such cases
may be made by forming a coil of iron or steel for the external
surface of such dimensions and thickness as may be required, and
:

page_text: either coiling such round the interior material or by placing the
interior material either solid in parts or in scrap after such coil has
been made.