A METHOD, OF MAKING AND. TEMPERING CAST IRON PLOUGH SHARES, AND OTHER ARTICLES OF CAST IRON FOR AGRICULTURAL USES
Year: 1803

page_text: TO. ALL TO WHOM THESE PRESENTS, SHALL COME, I, ROBERT
RANSOME, of Ipswich, in the County. of Suffolk, Ironfounder, being one of the
people called Quakers, do. send greeting.
WHEREAS, His most Excellent Majesty. King George the Third, by His
Letters Patent under the Great Seal of the United Kingdom of Great Britain
and Ireland, bearing date at Westminster, the Twenty-fourth day of September,
in the forty-third year of His reign, did give and grant unto me, the said
Robert Ransome, my executors, administrators, and assigns, His special
licence, full power, sole privilege and authority, that I, the said Robert
Ransome, my executors, administrators, and assigns, 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 Invention
of "A METHOD, OF MAKING AND. TEMPERING CAST IRON PLOUGH SHARES, AND OTHER
ARTICLES OF CAST IRON FOR AGRICULTURAL USES;" in which said Letters Patent
there is contained a proviso, obliging me, the said Robert Ransome, under my
hand and seal, to cause a particular description of the nature of my said
Invention, and the manner in which the same is to be performed, to be inrolled
in His Majesty's High Court of Chancery within one calendar month next
and immediately after the date of the said in part recited Letters Patent,
as in and by the same, relation being thereunto had, may more fully and at
large appear.

page_text: NOW KNOW YE, that in compliance with the said proviso, I, the said
Robert Ransome, do hereby declare that my said Invention of a Method of
Making and Tempering Cast Iron Plough Shares, and other Articles of Cast
Iron for Agricultural Uses, is as follows:-
First, for the shares the melted pig iron is poured into a mould prepared for
the
purpose, formed with one side or part of iron, and the other side or part of
sand or loam. The side of the share, when cast, that lays next the iron mould
will be hard and of proper temper, while the other side that is formed in sand
or loam will be soft, and if made of the best soft pig iron the share will be
much strengthened. To make the mould for casting the said ploughshares, I
proceed as follows:-First take a well-finished pattern of a ploughshare, made
either of iron or other metal; then lay it upon sand or loam, carefully stopping
it up until an accurate parting is made of that side of the share which is
designed to be hardened; then pour thereon either lead, plaster of Paris, or
other proper materials that will take an exact impression therefrom. With
this cast of lead, plaster, or other material, I proceed to take a cast in sand or
loam of the exact shape, in iron or other metal, which is the part used to form
one side of the share, and that gives the hardness and temper to the same;
the other side of the share is formed in a flask of wood or metal, with sand or
loam, in the common way of moulding the same article. These two parts are
fastened together by screws, weights, or such other means as may be used
to serve the purpose of confining the moulds together while the metal is
pouring therein. The socket or tray of the share is formed by an iron or
metal plug, the shape of the said socket or tray, being inserted into the
mould, by which means the socket is certain of being smooth and exact in
size and shape.
Secondly, scarifyers and hoes may be cast in a similar manner to the
shares. N.B.-Should it be required to make both sides of the shares,
scarifyers, or hoes hard, and the inner part soft, then both sides of the
mould or matrice must be made of iron or other metal. Any other articles,
wherein the above described properties are desirable, may be made in the same
manner.
In witness whereof, I, the said Robert Ransome, have hereunto set my
hand and seal, this Eighteenth day of October, in the year of our Lord
One thousand eight hundred and three.
ROBERT (L.s.) RANSOME

page_text: AND BE IT REMEMBERED, that on the same Eighteenth day of October,
in the year above mentioned, the aforesaid Robert Ransome came before our
Lord the King in His Chancery, and acknowledged the Specification aforesaid,
and all and every thing therein contained, in form above written. And also
the Specification aforesaid was stamped according to the tenor of the Statute in
that case made and provided.
Toallad het: Jan of Ontahan in th
Inrelled the same Eighteenth day of October, in the year above written.