IMPROVEMENTS IN THE MANUFACTURE OF RAILWAY WHEELS
Year: 1849

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, we, CHARLES
GREEN, of Birmingham, in the County of Warwick, Patent Brass Tube
Manufacturers, and JAMES NEWMAN, of Birmingham, Manufacturer, send
greeting.
WHEREAS Her present most Excellent Majesty Queen Victoria, by Her
Royal Letters Patent under the Great Seal of the United Kingdom of Great
Britain and Ireland, bearing date at Westminster, the Twenty-eighth day of
March, One thousand eight hundred and forty-nine, in the twelfth year of
Her reign, did, for Herself, Her heirs and successors, give and grant unto
us, the said Charles Green and James Newman, our exors, adiñors, and
assigns, Her especial licence, full power, sole privilege and authority, that
we, the said Charles Green and James Newman, our exors, admors, and
assigns, or such others as we, the said Charles Green and James Newman,
our exors, adiñors, or assigns, should at any time agree with, and no others,
from time to time and at all times during the term of years therein expressed,
should and lawfully might make, use, exercise, and vend, within England, Wales,
and the Town of Berwick-upon-Tweed, our Invention of "IMPROVEMENTS
IN THE MANUFACTURE OF RAILWAY WHEELS;" in which said Letters Patent is
contained a proviso that we, the said Charles Green and James Newman, or
one of us, shall cause a particular description of the nature of our said

page_text: the same time the opening should be for the most part circular so as to insure
the correct centering of the nave. For the purpose of making the cut, the wheel c
thus far formed is placed in the bed die a³, and cut with the punch or die b³, as
shewn at Figure 8, and the centre of the wheel c will be rendered into the
condition shewn in Figure 9, in the bed die a. The wheel is now in a
condition to have a nave fixed through and in the central opening, which is
done in the following manner :-Figure 10 shows a tube or hollow cylinder d,
which for convenience may be of two parts, for which purpose we use a
cylinder or tube, composed by preference of two parts, as shewn at Figure 10.
The wheel c is placed in another bed die h, having another upper die i, by the
descent of which the navej will be partly formed, as indicated by the same
lies or tools, shewn at Figure 12, there being a taper mandrel introduced and
placed in holes formed in the centre of the bottom and top dies 11, 12, and 13,
suitable for receiving the mandril to keep open the tube constituting the nave,
and also a temporary ring k is placed in the bed die for the purpose of giving
an equal quantity of metal on either side of the disc; it is then subjected to
the action of the upper die. The wheel is now to be lifted out of the bed
die h, and the temporary ring k removing from the lower or bed dich. The
wheel is now again to be placed into the bed die h, and the upper die i caused
to descend, by which the nave will be rendered into a proper form, as indicated
at Figure 18, where the dies or tools h, i, are again shewn with the wheel
therein. The mandril is now to be driven out, the wheel removed from the
die h, and the centre is to be turned out. The tube d, for making the nave, is
to be at a welding heat. Figure 14 shews a side view and section of the
wheel complete. We would state that the bed dies should be securely fixed,
the upper dies should be worked by steam in the manner of steam hammers
or other convenient means, such as strong levers acted on by steam, or water
power where the latter can be obtained. We would also state that we prefer
to use a succession of dies, and moving the wheel from one to the other in
preference to moving the same bed die with the wheel to a succession of upper
dies, or moving a succession of upper dies to one fixed bed die, as we believe
that the arrangement above described will be found most convenient for
carrying out the Invention, and such is the case in respect to the number of
upper and lower dies employed, but we do not confine ourselves thereto.
Having thus described the nature of our said Invention, and the manner in
which the same is to be performed, we would have it understood that we do
not confine ourselves to the details as shewn and described, so long as the
peculiar character of our Invention be retained. But what we claim is the

page_text: means of forming the peripheries and inner or central parts of wheels, and
also the mode of forming naves thereto, as herein described.
In witness whereof, the said Charles Green and James Newman have
hereunto set their hands and seals, this Twenty-fourth day of September,
in the year of our Lord One thousand eight hundred and forty-ninc.