AN IMPROVED COOKING AND BOILING APPARATUS
Year: 1851

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, GEORGE
NORMAN, of Shoreditch, Middlesex, Cabinet Maker, 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 Eighteenth day
of January, One thousand eight hundred and fifty-one, in the fourteenth
year of Her reign, did, for Herself, Her heirs and successors, give and
grant unto me, the said George Norman, my exors, admors, and assigns,
Her especial license, full power, sole privilege and authority, that I, 'the
said George Norman, my exors, admors, and assigns, or such others as I,
the said George Norman, 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 "AN IMPROVED COOKING AND BOILING APPARATUS;" in
which said Letters Patent is contained a proviso that I, the said George
Norman, shall cause a particular description of the nature of my said Inven-
tion, 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 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
George Norman, do hereby declare that the nature of my said Invention,
and in what manner the same is to be performed, are fully described in
and by the present Specification thereof, reference. being had to the Drawings
hereunto annexed, that is to say:-
My improvements in apparatus for cooking and boiling have for their
object the application of heat derivable from steam, in combination with that
radiated from or transmitted through the internal surface of the steam
generator to cooking purposes, whereby the apparatus is rendered more
economic, convenient, and suitable for the preparation of various articles of
food than any of the cooking apparatuses now in use. Figure 1 is an
external elevation; Figure 2 a longitudinal section; and Figure 3 a plan of
this improved apparatus. A, A, and B, B, are two similar shaped vessels,
which are connected together near their upper edges by a flange or strip of
metal C, C. The inner and smaller vessel is made of such size as to leave an
intervening space D, D, of about three quarters of an inch more or less between
the sides and bottom of the two. When the article is in use this intermediate
space is partly filled with water, which is introduced through the plug E fitted
into the bottom of the trough or channel formed by the upper edges of the
vessels A, B, and the flange or strip of metal C, by which they are connected
together. F is a tray or pan into which meat, fish, or poultry to be cooked
is placed; G is a perforated tray which is placed over the tray F, and is
employed for holding potatoes, carrots, or other vegetables; I, I, are two
pipes, which at their upper ends are open to the interior of the space D, D,
between the vessels A and B; at their lower ends these pipes communicate
with the interior of the inner vessel B, just immediately above the upper edge
of the tray F, so that when the apparatus is set upon the fire or heated by
any other means to cause the water to boil, the steam generated within the
chamber D is projected from the lower ends of the pipes I, I, directly upon
the contents of the lower tray, by which they are speedily cooked, while the
steam at the same time passing up through the upper tray amongst the
vegetables placed upon it prepares them for use; K is a gauge tap for regu-
lating the quantity of water put into the apparatus in the first instance, the
chamber D being filled until it runs out at the tap; L is the cover. In the
Drawings the openings of the steam pipes I, I, into the interior of the vessel
Bare shewn as being placed immediately over the top of the lower tray, but
it will be obvious that they may be placed further up or lower down at
pleasure, according to the uses to which the apparatus is to be applied. In
some cases, such as the melting of glue and other like substances, the steam

page_text: pipes may be carried into the interior of the chamber B, so as to terminate
amongst and project the steam directly into the substances in that chamber,
and the trays may be altogether dispensed with; and the melted substances
would in such cases be run off by a tap communicating with the inner
vessel B; M, M, are caps in which the upper ends of the pipes I, I, are
placed.
And having now described my said Invention, and in what manner the
same is to be performed, I declare that what I claim to be as of my Invention
is as follows:-
I claim the constructing of cooking and boiling apparatus, in such manner
that the substances to be cooked or boiled are simultaneously subjected to
the action of steam and of radiated or of transmitted heat, as before
described.
In witness whereof, I, the said George Norman, have hereunto set my
hand and seal, this Seventeenth day of July, in the year of our Lord