Improvements in Cauldrons for Melting Pitch and Fatty Substances.
Year: 1892

page_text: Date of Application, 7th Jan., 1892-Accepted, 20th Feb., 1892
COMPLETE SPECIFICATION.
Improvements in Cauldrons for Melting Pitch and Fatty Substances.
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 :-
This invention relates to apparatus for which several Patents have been granted
unto me, particularly to Patent No. 11,443, A.D. 1891, and the following description
may be understood by reference to the annexed sheet of drawings.
Figure 1 is a front elevation of a portable apparatus, Figure 2 is a plan of the
front part of the same, and Figure 3 is an enlarged section of the double barrels
for
gauze cones.
Figure 4 is a front elevation of the bogie for a portable apparatus, and Figure 5
is an enlarged transverse section of the same.
The first part of this invention includes an improved method of making the boxes
which protect the safety gauze cones and these boxes I now construct as double
barrels 12, which are made to swing sideways on pivots.
One barrel has a clear passage 13 through which both gas and air pass from the
pan 14 to the underside of the firegrate 15 and the other barrel carries a gauze
cone 16 which is put in line with gas tubes 17 at intervals as required to suit the
operation of melting and drawing off.
The upper part of the safety barrel is slightly coned to suit the size of the gauze
cone 16 and the gauze cone is fixed by means of a tapered ring or ferrule 18.
When the heat is low and the pan has only been newly charged the clear
passage 13 is put in line with the gas tubes 17 but when the charge is nearly ready
for drawing off or when the gas becomes very inflammable each gauze cone passage
is put into line.
In working by this method the front of ashpan 15 remains closed excepting when
necessary to clear away the ashes, and when the apparatus finishes work or is left in
care of a watchman, the gauze cones should always be put into line.
The second part of this invention includes an improved method of making and
attaching the bogie which contains a suitable spring.
The upper part of bogie body I, has two slots 2, for the spring 3. The centre
of the spring carries a circular washer 4, which is secured by bolts and a cross bar
as shewn on drawing.
The under part of the bogie is turned conical, it revolves on the circular
washer 4, and is prevented from falling out of the upper part 6, by the catch bar 7,
which is held in position by the axle 8.
Each end of bogie spring works on a shoe 9, which is secured to the main casing 10,
and the bogie axle is secured to flange of under part 5, by counter sunk bolts 11.
Having now particularly described and ascertained the nature of my said inven-
ion and in what manner the same is to be performed, I declare that what I
laim is :-
:-
1. The improved method of drawing off both gas and air from the pans of said
auldrons as herein before set forth.
2. The improved method of making the bogie or swivel box for front wheels of
auldrons as hereinbefore set forth.
.

page_text: 3. The improved method of making the gauze cone boxes and of fixing the gauze
cones as herein before set forth.
Dated this Fifth day of January 1892
B. D. HEALEY,
Applicant.