IMPROVEMENTS IN MANUFACTURING BARS OF IRON WITH OTHER METAL
Year: 1843

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JAMES
BOYDELL, junior, of Oak Farm Iron Works, near Dudley, Iron Master, send
greeting.
WHEREAS Her present most Excellent Majesty Queen Victoria, by. Her
Letters Patent under the Great Seal of Great Britain, bearing date at West-
minster, the Seventh day of April, in the sixth year of Her reign, did, for Her-
self, Her heirs and successors, give and grant unto me, the said James Boydell,
Her especial license, full power, sole privilege and authority, that I, the said
James Boydell, my exors, adñors, and assigns, or such others as I, the said
James Boydell, my exors, adfors, 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, my Inven-
tion of "IMPROVEMENTS IN MANUFACTURING BARS OF IRON WITH OTHER METAL;"
in which said Letters Patent is contained a proviso, that I, the said James
Boydell, shall cause a particular description of the nature of my said Invention,
and in what manner the same is to be performed, to be inrolled in Her
said Majesty's High Court of Chancery within six calendar months next and
immediately after the date of the said in part recited Letters Patent, as in
and by the same, reference being thereunto had, will more fully and at large
appear.

page_text: NOW KNOW YE, that in compliance with the said proviso, I, the said
James Boydell, do hereby declare that the nature of my Invention, and the
manner in which the same is to be performed, are fully described and ascer-
tained in and by the following statement thereof (that is to say):-
My Invention relates to a mode of rolling iron into bars, and in such manner
that, the piles being properly prepared, the bars produced are covered externally
with steel, by which means I am enabled to produce a manufacture of iron
bars applicable to a great variety of purposes, particularly in cases where
articles of manufacture or parts of machinery require to have hard or polished
surfaces; and I may state, as instances, amongst many others, where such
descriptions of iron bars will be found highly useful, piston rods, and other
the smaller working parts of steam engines, the shafting and other moving
parts of machinery, or parts of machinery required to be kept bright and
polished, the polished fire bars and other parts of stoves, also fire irons and
parts of fenders, and, in fact, such manufacture of bars of iron will offer all
the toughness of iron, with the hard, and, if polished, the bright surface of steel,
and will be useful where those properties are desired.
In carrying out this Invention, I cause the iron which is to be rolled into
bars of any desired section to be so piled that the external surfaces of the pile
is formed of slabs, or bars, or pieces of steel, the thickness of steel in respect
to quantity of the iron in a pile depending on the thickness it is desired to
have the steel on the bar rolled from such pile of iron with steel; and I
would state, that I use such steel as may be best applicable for the purposes
for which the bars manufactured therewith may be required. Having made
up a pile with iron on the interior and steel on outer surfaces, I heat the same
in a furnace, as if it were simply a pile of iron; but in cases where a very thin
coat of steel, or that of a very hard nature is required upon the iron, I add the
steel to the iron when it is partially heated, and when the steel and iron are at
a welding heat I cause the heated pile to be passed between grooved rollers
till I have obtained the figure of bar desired, whether the section be round,
square, or otherwise, in the same manner as if I were rolling a bar of iron
without any external surfaces of steel; by this means the iron of the bar will
be enveloped in steel.
I would remark, that I am aware that it has before been proposed to coat
bars of iron with steel by rolling steel into a section of the segment of a circle,
and then to cause those segments to be placed around a bar of iron, and to
weld the same together by passing them through or between grooved rollers;
I do not, therefore, claim the making bars of iron with external surfaces of
steel generally, though the iron of each bar be enveloped in steel; and I did,

page_text: in my Specification of a Patent granted to me for the making of edge tools,
describe a means of making bars of iron each with one surface coated with
steel, such bars being rolled with iron piled in combination with steel; I do not
therefore claim, under the present Letters Patent, the making of bars from
"piles" composed of iron and steel generally, nor in any cases where flat or
angular-sectioned bars are produced from "piles," each bar having only one
surface coated with steel; but what I do claim is, the mode of rolling bars of
iron with external covering surfaces of steel, by forming piles of iron with
surfaces of steel applied thereto, and heating and rolling the same into bars, as
above described.
In witness whereof, I, the said James Boydell, have hereunto set my
hand and seal, this Sixth day of October, in the year of our Lord One
Enrolled the Seventh day of October, in the year of our Lord One
thousand eight hundred and forty-three.