IMPROVEMENTS IN FURNACES OR STOVES SPECIALLY APPLICABLE FOR USE IN THE BOILING OF PAINT
Year: 1881

page_text: LETTERS PATENT to Hugh Gearing Grant, of the Firm of Messrs. Bosshardt &
Grant, Patent Agents, of 24, Bull's Head Chambers, Hopwood Avenue,
Market Place, Manchester, for an Invention of "IMPROVEMENTS IN FURNACES
OR STOVES SPECIALLY APPLICABLE FOR USE IN THE BOILING OF PAINT."
A communication from abroad by Antony Prevot, of Bergerac, in the
Republic of France.
PROVISIONAL SPECIFICATION left by the said Hugh Gearing Grant at the
Office of the Commissioners of Patents on the 23rd March 1881.
HUGH GEARING GRANT, of the Firm of Messrs. Bosshardt & Grant, Patent
Agents, of 24, Bull's Head Chambers, Hopwood Avenue, Market Place, Manchester.
"IMPROVEMENTS IN FURNACES OR STOVES SPECIALLY APPLICABLE FOR USE IN
THE BOILING OF PAINT." A communication from abroad by Antony Prevot, of
Bergerac, in the Republic of France.
The Invention relates to improvements in apparatus for boiling vitrified paint,
and consists in the combination of an inner and outer cylindrical casing. The said
inner casing is fitted and formed with shelves to support the vessel or vessels con-
taining the paint to be boiled, and is surrounded on the top and sides with coke
or charcoal The outer casing may be of metal plates rivited together, and
supported on legs; the said casing is formed and fitted with a lid or cover, which
is raised to renew the charcoal or coke, and with a chimney, through which the
products of combustion are permitted to escape. In the sides and bottom of the
said outer casing slots and openings are formed for inlet of air, and sliding plates
or doors fitted thereon, through which the vessels containing the paint are fed. A
metal rod formed with teeth at its upper end is placed in the interior casing, and
when expanded by the heat within the stove acts upon a dial wheel mounted on the
top of the apparatus, and which indicates the temperature.
A tube filled with
carmine or other suitable colouring matter may be employed for this purpose.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Hugh Gearing Grant in the Great Seal Patent Office on the
22nd September 1881.
HUGH GEARING GRANT, of the Firm of Messrs. Bosshardt and Grant, of
24, Bull's Head Chambers, Hopwood Avenue, Market Place, Manchester, in the
County of Lancaster, Patent Agents. "IMPROVEMENTS IN FURNACES OR STOVES
SPECIALLY APPLICABLE FOR USE IN THE BOILING OF PAINT." A communica-
tion from abroad by Antony Prevot, of Bergerac, in the Republic of France.
The Invention relates to improvements in apparatus for boiling vitrified paint,
and consists in the combination of an inner cylinder with an outer cylinder. The :
said inner cases is suitably fitted with shelves which support the vessel or vessels
containing the paint to be boiled, and the said inner cylinder is surrounded around
the sides and top with coke or charcoal. The outer casing may be made of metal
plates riveted together, and supported on legs, and is fitted with a cover, which can
be raised to renew the said fuel, and is also fitted with a chimney to carry away
the products of combustion. Around the sides of the said outer casing openings
are made through which atmospheric air enters, and sliding doors are made in the
outer casing, through which doors the vessels containing the paint are placed on
the said shelves. A metal rod formed with teeth on its upper end passes into the
interior casing, and when expanded or elongated by heat within the stove acts
upon a dial, and indicates the temperature. A tube filled with carmine or other
colouring matter may be employed for this purpose.
And in order that the said Invention may be better understood I have caused to
be appended hereunto a Sheet of Drawings marked with letters of reference.
Referring to the said Drawings, Fig. 1 represents a front elevation of the improved
furnace; Fig. 2 is a vertical cross section; Fig. 3, the casing containing the paint
vessel; Fig. 4, a cage employed to remove the paint vessel; Figs. 5, 6, 7, and 8,
earthenware bottoms on which the paint vessel is placed; Fig. 9 represents a form
of damper employed in the funnel G; Fig. 10 represents a cage T formed of metal
bars. The furnace A, formed of metal plates riveted together, is supported on
legs B, and is strengthend with vertical bars C, the upper ends of which bars carry
rings D. A sliding plate E is mounted in the furnace A, and covers or uncovers
the slots or openings F, which regulate the supply of atmospheric air to the furnace.
A funnel G, jointed at H, is employed to carry off the products of combustion.
Sliding plates K, having handles thereon, are fitted on the bottom of the furnace,
and cover or uncover openings in the furnace bottom, which openings admit air to
the furnace. The cylindrical chamber m, having feet n, contains the vessel v, in
which the charge is placed.. A cage T formed of metal bars is placed around the
chamber m, and the cage filled in with charcoal, coke, or other fuel. Air is
admitted within the furnace through perforations F and openings on the bottom of
the furnace. Another form of cage is shown by Fig. 4. Above the openings in the
bottom of the furnace suitably perforated earthenware tile bottoms R³, R, S¹, S, are
placed, which support the metal cage and cylindrical casing m.
Having now described the nature of my Invention, and means for carrying the
same into effect, I would have it to be understood that what I claim as secured to
me by the hereinbefore in part recited Letters Patent is,-
The combination and general arrangement of the apparatus for the purpose
specified.
In witness whereof, I, the said Hugh Gearing Grant, have hereunto set my
hand and seal, this Seventeenth day of September, in the year of our Lord
One thousand eight hundred and eighty one.