PLATING SILVER UPON PURE OR BLOCK TIN, AND OF MAKING OR MANUFACTURING THEREWITH, BY A NEW MODE, ALL SORTS OF SILVER PLATED GOODS OR WARES USUALLY MANUFACTURED FROM GOLD, SILVER, OR OTHER METALS, OR METAL PLATED WITH GOLD OR SILVER
Year: 1790

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
WHITWORTH, of Deretend, in the Township of Birmingham, in the County of
Warwick, Dyesinker, send greeting.
WHEREAS His present Majesty King George the Third, by His Letters
Patent under the Great Seal of Great Britain, bearing date at Westminster,
the Eighth day of July, in the thirtieth year of His reign, did give and grant
unto me, the said John Whitworth, His special licence that I, the said John
Whitworth, my executors, administrators, and assigns, during the term of
years therein expressed, should and lawfully might make, use, exercise, and
vend, within that part of His Kingdom of Great Britain called England,
His Dominion of Wales, and Town of Berwick-upon-Tweed, my Invention of
"PLATING SILVER UPON PURE OR BLOCK TIN, AND OF MAKING OR MANUFACTURING
THEREWITH, BY A NEW MODE, ALL SORTS OF SILVER PLATED GOODS OR WARES
USUALLY MANUFACTURED FROM GOLD, SILVER, OR OTHER METALS, OR METAL PLATED
WITH GOLD OR SILVER;" in which said Letters Patent there is contained a
proviso obliging me, the said John Whitworth, under my hand and seal, to
cause a particular description of the nature of the said Invention, and how
the same is to be performed, to be enrolled in His Majesty's High Court of
Chancery within a certain time in the said proviso mentioned, and not yet
expired, as in and by the said Letters Patent, reference being thereunto had,
will at large appear.
NOW THEREFORE KNOW YE, that in compliance with the said proviso,
I, the said John Whitworth, do hereby declare that my said Invention of
Plating Silver upon Pure or Block Tin, and of Making or Manufacturing

page_text: therewith, by a New Mode, all Sorts of Silver-plated Goods or Wares usually
manufactured from Gold, Silver, or other Metals, or Metal plated with Gold
or Silver, is to be performed in the following manner (to wit):-
Take a piece of flattened silver, and cut it to a pattern of the article, or any
separate part of the article, intended to be made, and fix it in an iron frame,
made upon the principle of that described by the Drawing or representation
thereof delineated in the margin of these Presents marked with the letter A,
the rim of which must be in the shape or form of the silver when so cut, which
is the frame or pattern for a knife haft or handle, the silver being fixed tight
in the said frame by the pressure of the rim thereof on the edges of the silver,
so that the tin, when melted or fluxed thereupon, cannot run from out the
frame. Take a proper quantity of tin cut into small pieces, that it may bo
fluxed with a smaller degree of heat, and thereby the silver be less liable to be
injured, and lay the tin, when so cut, upon the silver so fixed in the frame,
together with a small quantity of resin or any other matter that will be
assisting to flux the tin, and then set the frame over a fire, or on an iron plate
over a fire, in an air stove, until the tin is completely melted or fluxed. Then
take the frame from off the fire, and place it in a level position until the tin
is become set or hardened. Then take the tin out of the frame, and the silver
will be found to adhero to it so as to form one solid plate or substance. And
as in making some of the aforesaid articles it is requisite that the metal should
be plated on both sides, to accomplish this take two of the plates prepared as
aforesaid, and smooth or level the tin side of each with a rasp or file until
those sides, when put together, will moct in every part. Then rub or anoint
the tin side of each plate with Venice turpentine, and confine them together,
and in that position put them over a fire, or over a hot iron plate heated by a
fire, in an air stove, until the tin begins to flux in that part where the flat
surfaces are brought together, by which process they will become united in one
solid body. And then, having first pared or cut the superfluous silver from off
the edges of the plate, planish or hammor the plate to its proper form and size,
and apply it to the use, the metal being by this process in a proper state for
being immediately formed or mado into any flat or curved article. But in
making any cylindrical or hollow article, as, for example, in making a knife
haft or handle, take the metal, prepared as aforesaid, plated on one side only,
and bend it round a taper iron punch or maundrell of a proper size, and mado
upon the principle of that described or represented by the Drawing thereof
delineated in the margin of these Presents marked with the letter B, so as
Just to admit the edges of the metal to incet in a regular and uniform' manner;
then bind the edges together with wire, and lay a piece of flattened solder

page_text: composed of tin and lead, in the inside the metal, where the edges thereof
meet as aforesaid, and cover or guard the outside of the silver with a mixture
composed of chalk or whiting and water, and then by heat melt the solder,
whereby the edges of the metal will adhere or become soldered together.
This being done, put the metal into a taper hole or hollow made to a proper
size in a strong block of iron, upon the principle of that described by the
Drawing or representation thereof delineated in the margin of these Presents
marked with the letter C, stceled throughout the surface of the hole or hollow,
which hole or hollow may be plain or ornamented, but must be made very true
and smooth. Then take a steel punch, made very true and smooth, of the
same form and size as the punch or maundrell round which the metal has been
bent as aforementioned, and force it into the hollow of the metal, until the
metal will leave the hole or hollow in the iron block with a smooth and clear
surface, and then finish the article in the usual way. By which process, and
upon the like principle, may be made any cylindrical, hollow, or curved
article usually manufactured with gold, silver, or other metals, or metal plated
with gold or silver.
In witness whercof, I, the said John Whitworth, have hereunto set my
hand and seal, this Sixth day of August, in the year of our Lord
One thousand seven hundred and ninety.
AND BE I REMEMBERED, that on the Sixth day of August, in the
thirtieth year of the reign of His Majesty King George the Third, the said
John Whitworth came before our said Lord the King in His Chancery, and
acknowledged the Instrument aforesaid, and all and everything therein con-
tained and specified, in form above written. And also the Instrument
aforesaid was stamped according to the tenor of the several Statutes made
in the sixth year of the reign of the late King and Queen William and
Mary of England, and so forth, and in the seventeenth and Twenty-third
years of the reign of His present Majesty King George the Third.
Inrolled the Seventh day of August, in the said year of our Lord
One thousand seven hundred and ninety.