CERTAIN IMPROVEMENTS IN THE METHOD AND APPARATUS FOR KEEPING WARM, GLUE, STARCHES, GUMS, AND OTHER LIQUIDS, WHICH IS ALSO APPLICABLE FOR KEEPING OTHER ARTICLES WARM
Year: 1867

page_text: LETTERS PATENT to Tempest Booth, of Ardwick, in the County of Lan-
caster, Gum and Starch Manufacturer, for the Invention of "CERTAIN
IMPROVEMENTS IN THE METHOD AND APPARATUS FOR KEEPING WARM, GLUE,
STARCHES, GUMS, AND OTHER LIQUIDS, WHICH IS ALSO APPLICABLE FOR KEEPING
OTHER ARTICLES WARM."
Sealed the 1st October 1867, and dated the 26th April 1867.
PROVISIONAL SPECIFICATION left by the said Tempest Booth at the
Office of the Commissioners of Patents, with his Petition, on the
26th April 1867.
I, TEMPEST BOOTH, of Ardwick, in the County of Lancaster, Gum and
Starch Manufacturer, do hereby declare the nature of the said Invention for
"CERTAIN IMPROVEMENTS IN THE METHOD AND APPARATUS FOR KEEPING WARM,
GLUE, STARCHES, GUMS, AND OTHER LIQUIDS, WHICH IS ALSO APPLICABLE FOR
KEEPING OTHER ARTICLES WARM," to be as follows:-
The Invention is designed for the purpose of keeping warm glues, starches,
gums, solutions for dyeing, and other chemical solutions which are required to
be kept warm for a considerable length of time, and the Invention is also
applicable for keeping warm plates, dishes, or other eating utensils, and may
also be used or applied in the form of "dish covers."

page_text: The improvements consist in forming or arranging chambers one within
another so as to leave a space between them, which may either be left open
to contain air or be filled with sawdust; or two cavities may be formed, one
for air, and the other for sawdust; or three may be formed, one containing air,
one sawdust, and the other hot water, but when applied as a "dish cover"
one cavity filled with hot water or sawdust will be found sufficient. The
vessels or chambers which contain the glues, starch, gum, size, dyeing liquids,
or other chemical solutions, and also the internal vessels, may be constructed
of metal, wood, earthenware, stone, glass, or a combination thereof.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Tempest Booth in the Great Seal Patent Office on the
24th October 1867.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, TEMPEST
BOOTH, of Ardwick, in the County of Lancaster, Gum and Starch Manu-
facturer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-sixth day of April, in the year of our Lord
One thousand eight hundred and sixty-seven, in the thirtieth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me, the
said Tempest Booth, Her special license that I, the said Tempest Booth, my
executors, administrators, and assigns, or such others as I, the said Tempest
Booth, my executors, administrators, and assigns, should at any time agree
with, and no others, from time to time and at all times thereafter during the
term therein expressed, should and lawfully might make, use, exercise, and
vend, within the United Kingdom of Great Britain and Ireland, the Channel
Islands, and Isle of Man, an Invention for "CERTAIN IMPROVEMENTS IN THE
METHOD AND APPARATUS FOR KEEPING WARM GLUE, STARCHES, GUMS, AND OTHER
LIQUIDS, WHICH IS ALSO APPLICABLE FOR KEEPING OTHER ARTICLES WARM," upon
the condition (amongst others) that I, the said Tempest Booth, my executors
or administrators, by an instrument in writing under my, or their, or one of
their hands and seals, should particularly describe and ascertain the nature
of the said Invention, and in what manner the same was to be performed,
and cause the same to be filed in the Great Seal Patent Office within six
calendar months next and immediately after the date of the said Letters
Patent.

page_text: NOW KNOW YE, that I, the said Tempest Booth, do hereby declare the
nature of the said Invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement:
The Invention is designed for the purpose of keeping warm glues, starches,
gums, or other liquids, or for solutions for dyeing and other chemical
solutions which are required to be kept warm for a considerable length of
time; and the Invention is also applicable for keeping warm plates, dishes,
or other eating utensils, and may also be used or applied in the form of "dish
covers."
"
The improvements consist in forming or arranging chambers one within
another so as to leave a space between them, which may either be left open to
contain air or be filled with sawdust; or two cavities may be formed, one for
air and the other for sawdust; or three may be formed, one for air, one
sawdust, and the other for hot water, but when applied as a "dish cover" one
cavity filled with hot water or sawdust will be found sufficient. The vessels
or chambers which contain the glues, starch, gum, size, dyeing liquid, or other
chemical solutions, and also the internal vessels may be constructed of metal,
wood, earthenware, stone, glass, or combinations thereof.
The Invention will be found particularly useful by printers of woven fabrics
who require to keep the liquid colors heated, for dyers who require to keep
the solutions they employ in a heated state, or for manufacturers, chemists,
and others who require to keep hot liquids containing glue, starches, British
gums, farina, flour, sago, tapioca, linseed, or other auglacious substances, and
liquids of all descriptions used in printing, dyeing, or chemical manufactures,
or for keeping glue hot after being first dissolved for carpenters, &c.; and it
may also be applied to numerous domestic uses, such as for retaining the heat
of plates, hot water jugs and cans, or for keeping the solutions of sizing
materials hot employed in the processes of dressing and finishing wool, cotton,
silk, flax, and fibrous material and paper. For whatsoever of these purposes
the Invention is applied the vessel or chamber containing the material to be
kept hot must be enclosed in one, two, or more outer chambers, one or all of
which are to be filled with sawdust or non-conducting material which has
been previously perfectly dried, the greater the amount of non-conducting
material and the longer will the heat be confined. In some instances where
heat is required to be retained for a lengthened time a metallic heater may be
placed in the material chamber so as to come into contact with the material
contained therein.

page_text: When the Invention is to be applied for keeping plates warm for domestic
use a vertical slot or opening is provided in the side of the apparatus for the
passage of the hand in placing or removing the plates, which slot may be
closed by a door, and a lid or cover filled with sawdust is placed on the top to
retain the heat within.
In witness whereof, I, the said Tempest Booth, have hereunto set my
hand and seal, this Twenty-second day of October, in the year of
our Lord One thousand eight hundred and sixty-seven.
TEMPEST BOOTH. (L.S.)