IMPROVEMENTS IN THE MANUFACTURE OF TEA AND OTHER POTS AND VESSELS, AND OTHER ARTICLES MADE OF STAMPED METAL
Year: 1849

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, THOMAS
GRIFFITHS, of Islington Row, Edgebaston, Birmingham, in the County of
Warwick, 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 Twentieth day of,
September, One thousand eight hundred and forty nine, in the thirteenth year:
of Her reign, did, for Herself, Her' heirs and successors, give and grant unto.
me, the said Thomas Griffiths, my exors, admors, and. assigns, Her especial:
license, full power, sole privilege and authority, that I, the said Thomas:
Griffiths, my exors, admors, and assigns, and such others as I, the said
Thomas Griffiths, my exors, admors, 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:
Invention of "IMPROVEMENTS IN THE MANUFACTURE OF TEA AND OTHER POTS
AND VESSELS, AND OTHER ARTICLES MADE OF STAMPED METAL;" in which said:
Letters Patent 'is contained a 'proviso that I, the said "Thomas" Griffiths,"
should cause a particular description of 'the nature of my said 'Invention, and
in what manner the same is to be performed, by an instrument in writing?
under my hand and seal, to be inrolled in Her said Majesty's High Court

page_text: 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.
NOW KNOW YE, that in compliance with the said proviso, I, the said
Thomas Griffiths, do hereby declare that the nature of my said Invention,
and the manner in which the same is to be performed, are fully described
and ascertained in and by the following statement thereof, reference being
had to the Drawings hereunto annexed, and to the figures and letters marked
thereon, that is to say:-
My Invention consists of improvements in manufacturing tea and other
pots and vessels, and other hollow articles of Britannia metal, by strengthening
such articles with a lining of stamped sheet iron, or other stronger metal
than Britannia metal. And in order that my Invention may be most fully
understood and readily carried into effect, I will proceed to describe the means
pursued by me.
It is well known that articles made of Britannia metal are comparatively
weak, but on the other hand that metal offers the great advantage that a tea
or coffee pot or other vessel or hollow article may be made of several pieces,
and soldered together without the seams or joints being readily, if at all,
detected, whereas in making like articles of tin plate or copper, or alloys of
copper, though the articles are strong, the seams or joints of the several
parts are readily seen or detected, and hence a vessel or hollow article made of
several pieces cannot be made to appear as if of one piece of metal. The
object of my Invention therefore is to combine the stronger metals as
linings or strengtheners to the weaker Britannia metal in manufacturing
tea and coffee pots, and other vessels or hollow articles required to be made of
several stamped parts, so that the exterior surface of Britannia metal may
appear as heretofore of one piece.
DESCRIPTION OF THE DRAWINGS.
Figure 1 shews a tea pot manufactured according to my Invention.
Figure 2 shews a plan, and Figure 3 a section, of a vessel composed of
two pieces of stamped tin plate, which is the stronger metal I prefer to use.
This vessel a, a, is soldered at the joints a'. The parts of this vessel a are
made by stamping or stamping and spinning or burnishing to form, as is
well understood. This vessel a, a, is to be covered with a shell or covering of
Britannia metal suitably formed to fit the same by stamping, or by stamping
and burnishing to form, as is well understood. I employ the same dies when
stamping the like parts of the vessel a, a, of tin plate or strong metal, and

page_text: the like parts of the vessels b, b, of Britannia metal; and in order to ensure the
well fitting of such parts I prefer to burnish or to spin the parts after
stamping.
Figure 4 shews a plan and section of the upper part b of the vessel of
Britannia metal; Figure 5 shows a plan and section of the lower part of
the vessel h of Britannia metal. These parts being placed on the vessel a,
the seam or joint is to be soldered, when the conjoined vessel will be as shewn
at Figure 6, and will require to be finished as if of Britannia metal only.
In this manner may coffee and other pots or vessels and hollow articles
be made, or the same may be made to consist of more parts and consequently
have more seams or joints. Although I have shewn the parts to be joined by
a horizontal seam and to consist of two parts, other forms of vessels may
be made of like or other numbers of parts, and may be joined by vertical
seams or by vertical and horizontal seams. Figure 7 shews a coffee pot made
of an internal vessel of tin plate or other proper strong metal soldered at
the joints, and the same is to be covered by Britannia metal, which I stamp in
two halves, the soldered joints being from top to bottom. Figure 8 shews a
plan and vertical section of the inner vessel a, a. Figure 9 shews a plan and
an elevation of one half of the vessel or external vessel b. I would state
that in stamping the Britannia metal, any desired ornamental device may
be produced by using suitable engraved dies as heretofore; and when the
embossing of the Britannia metal is considerable in depth it is desirable that
the stronger metal should also be similarly embossed so as to enter into
and give strength to the embossing of the Brittannia metal. I have not thought
it necessary to shew more forms or shapes of vessels or articles made
according to my Invention, as a workman from the above description, aided by
the Drawings, will readily make other forms of tea and coffee or other pots
and vessels, and other hollow articles according to my Invention.
Having thus described the nature of my improvements, and the manner in
which the same are to be performed, I would have it understood that what
I claim is, the mode of manufacturing tea and other pots and vessels,
and other hollow articles, of Britannia metal, by strengthening the same with
stronger metal, as herein described.
In witness whereof, I, the said Thomas Griffiths, have hereunto set my
hand and seal, this Nineteenth day of March, in the year of our Lord
One thousand eight hundred and fifty.
THOMAS (L.S.) GRIFFITHS.

page_text: AND BE IT REMEMBERED, that on the Nineteenth day of March,
in the year of our Lord 1850, the aforesaid Thomas Griffiths came before our
said Lady the Queen in Her Chancery, and acknowledged the Specification
aforesaid, and all and every thing 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. :
Enrolled the Twentieth day of March, in the year of our Lord One
thousand eight hundred and fifty.