AN IMPROVED POT FOR MELTING METALS AN OTHER SUBSTANCES
Year: 1884

page_text: I JOHN HARSANT of Twickenham in the County of Middlesex Plumber do
hereby declare the nature of my said Invention for AN IMPROVED POT FOR
MELTING METALS AN OTHER SUBSTANCES to be as follows:-
In the ordinary melting pot the bottom or lower part only is acted on by the
fire or heat below and after acting thereon a large proportion of the heat passes up
the sides of the pot and escapes having done little or no service now the object of
this my present Invention is so to construct the melting pot as to utilize this heat
that at present is wasted.
The pot is formed in the usual manner of any convenient shape and with or
without legs as may be desirable. I then form a separate rim for the pot which
rim is made of an annular or ring shaped piece of metal or other suitable material
and in cross section is formed into a semicircular or curved or angular shape. It is
then placed over the rim or upper edge of the pot in such a manner that while the
two edges are below the level of the said rim of the pot one being on each side
thereof the apex or upper part of the separate rim is a little above the upper edge
or rim of the pot thus leaving a space all round the pot between the upper edge
thereof and the inside of the apex or upper part of the separate rim. The separate
rim is secured in this position by four or more or less brackets which may either
be made entirely separate from the pot and the rim or may be made in the same
piece with either of them and secured in any convenient manner thereto. The
handle if any is fixed in lugs formed on or secured to the outer side of the apex or
upper part of the separate rim in suitable positions preferably in line with the
brackets that hold the rim. Thus this melting pot can be handled and used in
exactly the same way as the ordinary ones but the flames and heat as they spread
up round the sides of the pot instead of passing away to waste are caught by
the outside edge of the separate rim passed over the upper edge or rim of the pot
and deflected downwards by the inside edge of the separate rim and made to play
upon the metal or other substance in the pot whereby a large amount of heat that
is usually wasted is utilized.
Dated this 1st dov of Januar 1001.

page_text: 1 JOHN HARSANT of Twickenham in the County of Middlesex Plumber do
hereby declare the nature of my said Invention for AN IMPROVED POT FOR
MELTING METALS AND OTHER SUBSTANCES and in what manner the same is to
be performed, to be particularly described and ascertained in and by the following
statement
In the ordinary melting pot the bottom or lower part thereof only is acted upon
by the fire or heat below and after it has so acted thereupon a large proportion of
the heat passes up the sides of the pot and escapes having done little or no service.
Now the object. of this my present Invention is so to construct the melting pot
as to utilize this heat that at present is wasted and thereby effect a great saving of
time as the metal or other substance in the pot is the more quickly melted and
also effect an economy in the fuel consumed as all the heat that is produced thereby
is utilized.
I carry out this object by placing a separate rim or deflector ring over the rim
or upper edge of the pot and so fitted and arranged as to catch the flames and heat
passing up the sides of the said pot and deflect the said flames and heat down on
the metal or other substance in the said pot.
In order to clearly explain my Invention and in what manner the same is to be
performed I refer to the accompanying Drawing.
Figure 1 is a vertical section of a melting pot fitted and arranged according to
my method as aforesaid. Figure 2 is an horizontal section of the same taken
at a. b. in Figure 1.
The melting pot A is formed in the usual or other convenient manner of any
B is the
suitable shape and size and with or without legs as may be desirable.
deflector ring which is made of an annular or ring shaped piece of metal or other
suitable material and in cross section is formed into an angular or curved shape
preferably semicircular or nearly so as shewn in the Drawing. This deflector
ring B is placed over the rim or upper edge of the pot A in such a manner that
while the two edges of the said deflector ring B are below the level of the said rim
of the pot A one of the said edges of the deflector ring B being on each side of the
said rim of the pot A the apex or upper part of the said deflector ring B is a
suitable distance above the said rim of the pot A thus creating or leaving a space
all round the said pot A between the said rim or upper edge thereof and the inside
of the said apex or upper part of the deflector ring B. The deflector ring B may
be secured in this position in any suitable manner as may be desirable in each case.
For portable pots a convenient manner is shewn in the Drawing where the
deflector ring B is secured in position by four brackets C which may be placed or
secured on the pot or on the deflector ring in any positions or parts thereof that
may be most convenient and the said brackets C either may be entirely separate
from the pot and from the deflector ring or may be made in the same piece with
either the said pot or the said ring and when separate the said brackets can be
attached thereto in any suitable manner. The handle D if any is secured to or
passed through lugs E formed on or attached to the outer side of the apex or upper
part of the deflector ring B in suitable positions preferably in line with two of the
brackets C that secure the said deflector ring B to the pot A. This can also be
conveniently effected by prolonging the lugs through the deflector ring and
securing them to the sides of the pot thus causing these prolongations of the lugs
to act as the brackets before described.
3

page_text: Thus this melting pot can be used and when so fitted handled in exactly the
same manner as are the ordinary pots but the flames and heat as they spread up
round the sides of the pot instead of passing away to waste as is usual are caught
by the outside edge of the deflector ring and are thereby passed over the rim or
upper edge of the pot and then deflected downwards by the inside edge of the
deflector ring whereby the said flames and heat are made to play upon the metal
or other substance in the pot and thus the large amount of heat that usually is
wasted can be utilized.
It is sufficiently obvious that though this my Invention as hereinbefore described
is in an especial manner applicable to the ordinary portable plumbers pot as shewn
in the Drawing I can also apply it to every kind of pot whether fixed or portable
and whether of a large or a small size in which metals or other substances are to
be melted.
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
1. The deflector ring placed over the rim of a melting pot substantially as and
for the purpose herein before described and declared.
2. The combination of an ordinary melting pot A and a deflector ring B
supported in position over the said pot A substantially as hereinbefore described
and set forth.
3. The improved melting pot substantially as hereinbefore described and shewn
in the Drawing accompanying.
Dated th: 10