Improvements in Cauldrons for Melting Pitch and Fatty Substances.
Year: 1891

page_text: Date of Application, 6th July, 1891
Complete Specification Left, 24th July, 1891-Accepted, 19th Sept, 1891
PROVISIONAL SPECIFICATION.
Improvements in Cauldrons for Melting Pitch and Fatty
Substances.
BRIERLEY DENHAM HEALEY of Bamber Bridge, in the County of Lancaster,
Civil Engineer, do hereby declare the nature of this invention to be as follows:
:-
My present invention has reference to improvements in apparatus for which
several Patents have been granted unto me, particularly to that described in Patent
No. 5959, A.D. 1886, but it is obvious that the apparatus may be built in or
surrounded by brickwork.
When the pan has been charged, and a fire lighted on the grate, the contents of
the pan in due course give off pungent gases. Instead of drawing these gases to
the firegrate through small pipes as formerly, the conduits are now made about four
times larger, the pipes for a 300 gallon pan being about 3 inches, and for 150 gallon
about 2 inches in diameter.
The gas tubes rest in glands which are bolted to front end of casing, and below
the glands are movable elbows with faced joints. The said elbows have D flanges
which enter into the front end of D shaped gas distributing flues at each side of
the firegrate. The suid flues extend along the sides for about one half the length
of the firegrate at the same level as the firegrate.
At the spigot end of each movable elbow there is a gland which secures the large
end of a coned safety gauze. These glands have three ears each, so that they may
be drawn up towards the D flanges of elbows with the large end of gauze cones in
the annular joint.
The small end of gauze cones is closed by a plain cup, and kept in a central
position by a starred cup, both of which are coned to suit the angle of gauze cone,
so that as one cup is drawn into the other by a set screw, the small end of gauze
cone is held in the joint formed thereby.
The gases pass from the gauze cones into the distributing flues, and from thence
through slots in the grate sides, into channels at each side of firegrate, and finally
into the incandescent fuel on the grate.
A much larger surface of gauze
available under this invention than has been
possible by any of my previous methods, and the gauze cones are not liable to injury
during their passage into the flucs.
The central heating flues of said apparatus are now made with cramps for
holding down the separate parts to the main casing, and the front and back end
plates of the casing are bolted to outside angles so that they can be readily
removed.
The side heating flues are made much larger than hitherto, the side seating angles
of casings being turned inwards, and secured to the pan seating angles by means of
bolts.
COMPLETE SPECIFICATION.
Improvements in Cauldrons for Melting Pitch and Fatty
Substances.
i
I, BRIERLEY DENHAM HEALEY of Bamber Bridge, in the County of Lancaster,
Civil Engineer, do hereby declare the nature of this invention and in what
manner the same is to be performed, to be particularly described and ascertained in
and by the following statement :-
My present invention has reference to improvements in apparatus for which

page_text: several Patents have been granted unto me, particularly to that described in Patent
No. 5959 A.D. 1886 but it is obvious that the apparatus may be built in or
surrounded by brickwork.
When the pan has been charged and a fire lighted on the grate, the contents of
the pan in due course give off pungent gases. Instead of drawing these gases to
the firegrate through small pipes as formerly, the conduits are now made about four
times larger, the pipes for a 300 gallon pan being about 3 inches, and for 150 gallon
about 2 inches in diameter.
In order that this invention may be better understood I have attached hereto one
sheet of drawings.
Figure 1 is a longitudinal section and Figure 2 is a front elevation of the complete
apparatus, and Figures 3 and 4 are enlarged views of the gas burning apparatus
which is attached to the sides of the firegrates.
The gas tubes 1 rest in glands 2 which are bolted to front end of casing, and
below the glands are movable elbows 3 with faced joints. The said elbows have
D flanges which enter into the front end of D shaped gas distributing flues at cach
side of the firegrate. The said flues extend along the sides for about one half the
. length of the firegrate at the same level as the firegrate and have stops 7.
At the spigot end of each movable elbow there is a gland 4 which secures the
large end of a coned safety gauze. These glands have three ears each, so that they
may be drawn up towards the D flanges of elbows with the large end of gauze cones
in the annular joint.
The small end of gauze cones is closed by a plain cup 5, and kept in a central
position by a starred cup 6, both of which are coned to suit the angle of gauze cone,
so that as one cup is drawn into the other by a set screw, the small end of gauze
cone is held in the joint formed thereby.
The gases pass from the gauze cones into the distributing flues, and from thence
through slots in the grate sides, into channels 8 at each side of firegrate, and finally
'into the incandescent fuel on the grate.
A much larger surface of gauze is available under this invention than has been
possible by any of my previous methods, and the gauze cones are not liable to injury
during their passage into the flues.
The central heating flues of said apparatus are now made with cramps 9 for
holding down the separate parts to the main casing, the front 10 and back end
plates 11 of the casing, and top plates 12, are bolted to outside angles so that they
can be readily removed.
The top angles of pan ends are put outside and bent down at each end so as to be
joined to the top angles of pan sides at each outer corner of the pan.
The side heating flues are made much larger than hitherto, the side seating
. angles of casings being turned inwards, and secured to the pan seating angles by
. means of bolts.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manuer the same is to be performed, I declare that what I
claim is
1-The improved size and form of apparatus for conveying the gases from the
pans to the grates of cauldrons as hereinbefore set forth.
2-The improved construction of the end and top plates and side flues of
cauldrons, and cramping of central flues as herein set forth.
Dated this 22nd dor of Tul 1801
B. D. HEALEY.