IMPROVEMENTS IN COCKS FOR DRAWING OFF LIQUIDS
Year: 1830

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ROBERT
MARTINEAU, of Birmingham, in the County of Warwick, Cock Founder,
send greeting.
WHEREAS His late most Excellent Majesty King George the Fourth,
by His Letters Patent under the Great Seal of Great Britain, bearing date
at Westminster, the Twenty-seventh day of February, in the eleventh year of
His reign, did give and grant unto ENOCH WILLIAM RUDDER, of Birmingham
aforesaid, Cock Founder, and the said Robert Martineau, their exors, adñiors,
and assigns, His especial licence, full power, sole privilege and authority, that
the said Enoch William Rudder and Robert Martineau, their exors, admors,
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, their new invented "IMPROVEMENTS IN COCKS FOR DRAWING
OFF LIQUIDS;" in which said Letters Patent there is contained a proviso obliging
the said Enoch William Rudder and Robert Martineau, under their hands and
seals, or under the hand and seal of one of them, to cause a particular des-
cription of the nature of their said Invention, and in what manner the same
is to be performed, to be enrolled in His Majesty's High Court of Chancery
within six calendar months next and immediately after the date of the said
recited Letters Patent, as in and by the same (relation being thereunto had)
may more fully and at large appear.
NOW KNOW YE, that in compliance with the said proviso, I, the said
Robert Martineau, (for and on behalf of the said Enoch William Rudder
and myself,) do hereby declare that our said improvements and the manner in

page_text: which the same are to be performed, are set forth, described, and ascertained
in manner following (that is to say):-
The said improvements consist in combining pieces of metal previously rolled
or laminated to proper thickness, cut to suitable shapes, pressed, stamped, or
otherwise moulded into the requisite forms, and afterwards fitted together and
soldered, so as to form and constitute a cock for drawing off liquids. The said
Invention is susceptible of numerous modifications, but the following is a de-
scription of that which is most useful, and which we prefer and practise.
By the well-known operation of stamping or pressing metal into dies, two
pieces of rolled metal of suitable thickness and tenacity are raised or formed
into the required exterior shape of the barrel of the cock, each piece forming
one balf, so that when the corresponding edges of the said pieces are brought
together, they constitute the entire outside of the barrel of the cock. In like
manner we stamp two pieces of metal, which, when their edges are brought
together, shall be of the required shape of the inside of the body of the cock
and the outside of this; the interior part of the cock is made to fill and fit the
exterior part above described, taking care that the joinings of the pieces form-
ing the inside, shall in the cross section of the cock be in a direction such as
to fall against the middle, or thereabouts, of the pieces forming the outside of
the cock, so that when soldered the parts may reciprocally strengthen each
other. The, parts,. thus prepared, are tinned upon the surfaces which are in-
tended to be united, that is, the exterior part is tinned on its inside surface,
and the interior on its outside surface, and the edges are tinned; the latter is
then enclosed in the former, which is bound with wire; they are then exposed
to heat sufficient to melt the tin on the respective surfaces and edges now in
contact which are thereby united, and form when cool a compact and substantial
body. In cases where we wish to give additional strength to the cock, we
construct a barrel of a piece of rolled metal of a proper shape formed into a
conical tube and brazed; on each side a hole is cut for the passage of the
liquid; afterwards it is put upon a mandril and made perfectly round; its
outer surface is then tinned, as also the interior surface of the barrel of the
. cock into which it is to be soldered. When this additional barrel is used it is
inserted when the other parts are put together, and the whole soldered at one
operation.; or we make this additional barrel of cast metal which we bore and
turn after the same manner as described above. The plug is formed by
stamping two pieces of rolled metal, which, when united by their edges, will
form the outside shape of the plug, the interior surface of which we tin, and
leaving the necessary opening for the passage of the liquid, fill the cavity with
tin or other suitable metal so as to form a solid substance; or we construct

page_text: the lower part of the plug of one piece of metal formed into a conical tube,
similar to the barrel already described, having its outside form exactly to fit
the inside of the barrel, and also holes corresponding therewith for the passage
of the liquid. We also tin the inside of the lower part of the plug and con-
struct the upper part of the plug of cast brass or other suitable metal, which
fits and is soldered, screwed, or otherwise substantially fixed into the said plug,
then, leaving the opening for the passage of the liquid, the cavity is filled with
tin, lead, or other suitable substance. The barrel of the cock and the plug
being thus formed are fitted and ground together in the manner now practised
by cock makers.
We do not rest the merits or originality of our Invention upon any specific
form of cock, nor upon any particular modification of the arrangement of the
pieces of metal which we use in fabricating cocks, nor upon the application of
rolled metal as a case or ornamental covering for a cock of the ordinary con-
struction, nor do we claim as any part of our said Invention the use of cast
brass or other metal for the upper part of the plug or additional barrel of the
cock, which are not new; but we claim as our Invention the application of
pieces of rolled or laminated metal, formed, fitted, and soldered together as
herein specified in the construction of cocks.
In witness whereof, I, the said Robert Martineau have hereunto set
my hand and seal, the Seventeenth day of August, in the year of
our Lord One thousand eight hundred and thirty.
ROBERT MARTINEAU. (L.S.)
AND BE IT REMEMBERED, that on the Seventeenth day of August,
in the year of our Lord 1830, the aforesaid Robert Martineau came before
our said Lord the King in His Chancery, and acknowledged the Speci-
fication aforesaid, and all and everything therein contained and specified, in
form above written. And also the Specification aforesaid was stamped according
to the tenor of the Statute made for that purpose.
Inrolled the Twentieth day of Anrust in the rear of our Lord One
Inrolled the Twentieth day of August, in the roar of our Lord One
thousand eight hundred and thirty.