Year: 1895

page_text: I, JAMES HILL Ironmonger 77 West Street Tavistock Devou do hereby
declare the nature of this invention to be as follows:-
It consists of a metallic tubular coil and is of taper pattern, although it can be
made in a variety of shapes. It can be made in one or more pieces.
Dated this Seventh day of January 1895.
I, JAMES HILL of West Street Tavistock Ironmonger 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 invention relates to improvements in portable apparatus for heating water in
a rapid and continuous manner.
I carry my invention into practice in manner as hereinafter described and set
forth.
"
I form out of tube which may be of round oval or any other suitable section
and made of copper brass, iron or other suitable metal a coil of tube which coil
shall be tapering or conical in elevation, but may be round, oval or square in plan.
The said coil of tube may be composed of any suitable number of spirals.
I do not confine myself to one coil there may be more than one coil of tube
when more than one coil is employed the said coils are
"nested that is placed
one inside another or in other words the smaller coil goes inside the larger coil.
In order that the waste of heat from the flame or other source of heat may be
economised I place over the coil so as to completely cover it except at the places
where the inlet and outlet for the water are situated and where any other needful
opening may be formed a hood or cover which follows more or less the contour of
the coil and may be partly or wholly composed of fire clay, asbestos or any other
fire resisting medium or suitable metal.
In order that the foregoing description may be more clearly understood 1 annex
herewith one sheet of drawings which are to be taken and read as part of these
presents.
Like letters apply to like parts in all the figures.
Figure 1. shows an elevation of the taper coil or helix with the hood shown in
section.
Figure 2. shows a sectional elevation of the coil or helix and the hood, and also
the arrangement for raising & lowering the hood.
Figure 3. shows a sectional elevation of two coils or helices and the hood.
Figure 4. is an elevation of the coil or helix with the hood in position.
Figure 5 is another arrangement of conical sections.
Figure 6 is a burner for burning gas or hydrocarbons.
A are the coils of tube when one coil is used.

page_text: through the coil or coils.
C. inlet or inlets for cold water.
D outlet or outlets for hot water.
E is the hood.
F handles for removing hood from coil.
G support for hood which is so arranged as to be able to be moved upwards or
downwards on rod P and is fixed in position by set screw O which is screwed into
nut R.
H burner shown in this drawing for burning a certain class of hydrocarbons
or ordinary coal gas.
Arrows indicate the preferable direction which the stream of water follows but
this direction may be reversed. Instead of being made of tube as hereinbefore
described the coil can be made in conical sections which are connected together this
is shown in Figure 5.
Jare the sections connected together by tubes K.
L the inlet tube which takes the cold water to the lowest section.
M the outlet tube which forms the outlet for the hot water.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed I declare that what I
claim is
1. The arrangement of portable tubular heaters as hereinbefore set forth and
described.
2. The arrangement of having two or more coils "nested" that is one coil going
inside the other in the manner as hereinbefore set forth and described.
3. The arrangement if smaller taper or other shaped sectional parts super-
imposed upon and connected with each other in the manner as hereinbefore set
forth and described.
4. The arrangement of hood or covering for the coils in manner hereinbefore
set forth and described.
Dated this 28th day of June 1895.
W. M. LLEWELLIN, C.E.,.
15 King Square, Bristol, Agent for the Applicant.