IMPROVEMENTS IN FURNACES ESPECIALLY APPLICABLE TO GLASS FURNACES
Year: 1884

page_text: PROVISIONAL, SPECIFICATION.
I THOMAS KNOTT of 103 Alcot Place, Peckham Park Road in the county of
Surrey Glass bottle Manufacturer do hereby declare the nature of my said
invention for "IMPROVEMENTS IN FURNACES ESPECIALLY APPLICABLE TO GLASS
FURNACES" to be as follows :-
This invention relates to certain improvements in furnaces the object being to
continuously and automatically feed or keep up the supply of molten metál in a
central tank from which the same may be drawn or taken for working.
I will describe this invention as employed for glass bottle manufacture the
furnace being built of say triple form which is a convenient one for the purpose,
but it may be four or more sided according to the number of sides at which work
may be carried on around the central tank. Fire boxes are arranged round the
central tank and these fire boxes or furnace holes have a bridge at their inner
ends and then immediately behind is provided melting boxes which boxes have
walls between them and the central tank. These melting box walls are provided
with openings or gates at their lower parts which openings or gates puts the
central tank in open communication with said melting boxes.
The whole of the tanks are arched over and the flues are built in an arch over
them and dampers are provided for regulating the heat or closing the tanks off
from the fires as required. The outer walls of the central tank are provided with
draw holes at which the workmen draw out the requisite metal and the work is
carried on around the furnace in the space between the arms formned by the fire-
boxes and melting pots and the holes for finishing the necks of the blown bottles
are provided in the walls on each side of the fire boxes.
.
The working is as follows:-The broken cullet, sand, and flux are fed into the
melting boxes from time to time and when melted by the action of the fires the
liquid metal runs through the openings or gates in the end walls of the melting
boxes and so continuously and automatically keeps up the supply in the central
tank of uniform heat and quality and free from the impurities which. rise to the
top of and is retained in the melting boxes and the working at the central tank
can in this way be carried on without intermission by "day and night shifts."
Provision will be made for removing the impurities from the melting boxes as
and where required.
Dated this 7th day of May 1884.

page_text: I THOMAS KNOTT of 103 Alcot Place, Peckham Park Road, Surrey, Glass bottle
manufacturer do hereby declare the nature of my invention for "IMPROVEMENTS
IN FURNACES ESPECIALLY APPLICABLE TO GLASS FURNACES" and in what manner
the same is to be performed, to be particularly described and ascertained in and
by the following statement:-
This invention relates to certain improvements in furnaces for use in glass
manufacture, the object being to, continously and automatically feed or keep up.
the supply of molten metal in a central tank or reservoir from which the same may
be drawn or taken for working.
In order that my invention may be more clearly understood I have hereunto.
annexed a sheet of drawings wherein Fig. 1 shows a sectional plan and Fig. 2 a.
transverse section on line x y of this improved furnace as employed for glass
manufacture, which I have here shown constructed of triple form such being a
convenient one for the purpose but it may be four or more sided according to the
number of sides at which work may be carried on.
Around the central tank a, fire boxes b are arranged, and these fire boxes or
furnace holes 6 have a bridge cat their inner ends, and then immediately behind
is provided melting boxes d, which boxes, have walls e between them and the central
tank a.
в
These melting box walls e are provided with openings or gates fat their lower
parts which openings or gates ƒ put the central tank a, in open communication
with the said melting boxes d.
4
The whole of the tanks and fire boxes are covered over by pierced arches g, and
the flues hare built in an arch over the said pierced arches g, and dampers i for
regulating the draught and intensity of the fires, are provided both in the central
shaft and in the several shafts k immediately over each of the fire boxes or
furnace holes b.-Dampers may also be provided at the bridges c for regulating
the heat or for closing the fires off from the melting tanks & when required as
shown.
l
The outer walls of the central tank are provided with draw holes m at which
the workmen draw out the requisite metal, and the work is carried on around the
furnace in the space between the arms formed by the fire boxes and melting tanks,
and holes n for finishing the necks of the blown bottles are provided in the walls
on each side of the fire boxes.
The working of this improved construction of furnace is as follows:-
The broken cullet, sand, and flux are fed into the melting boxes or tanks d from
time to time, through the holes o, and when melted by the action of the fires, the
liquid metal runs through the openings or gates f in the end walls e of the melting
boxes d and so continously and automatically keeps up the supply in the central
tank or reservoir a of uniform heat and quality and free from the impurities which
rise to the top of, and is retained in, the melting boxes d and the working at the
central tank can in this way be carried on without intermission by "day and night
shifts."

page_text: Provision will be made for removing the impurities from the melting boxes as
and when required.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is
In a furnace constructed as herein set forth the sections comprising the fire boxes
and melting tanks arranged around the working tank and allowing of the working
being effected from and around the central tank said central tank being supplied
with molten metal through the piercings f of the dividing walls of the melting
boxes of the several sections as herein set forth.
WALTER A. BARLOW,
Agent for Thomas Knott: