Improved Heating Coll.
Year: 1895

page_text: PROVISIONAL SPECIFICATION.
Improved Heating Coll.
FREDERICK GREEN 60) Arthur Road Holloway London N. County of
Middlesex, Metal Plate Worker. I do hereby declare the nature of this invention
to be as follows:-
My invention consists of a coil to be made of a flat tube, any height thickness or
length, for circulating heating purposes, to be made in any sort of sheet metal.
I make this flat tube in two pieces seamed at the edges and roll it into a coil as
shown in the accompanying drawings at Figure A.
The section of the coil is shown at Fig. B.
1
Improved Heating C011.
I FREDERICK GREEN of 60 Arthur Road Holloway London N. in the County
of Middlesex Metal Plate Worker 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 :—
The object of my invention is the improvement of the apparatus used for the
purpose of heating, as quickly as possible, water and other liquids.
My invention consists of a flat shaped tube composed of copper, or of any other
suitable sheet metal, which I make of any convenient height, thickness, and length,
and which I afterwards roll into a coil having any number of revolutions
desired.
And I make the said flat shaped tube in two pieces seamed together at their
edges, in order that it may admit of being rolled into a coil without straining or
tearing the metal of which it is composed.
By these means I obtain an extraordinarily large heating surface.
Referring to the annexed drawings the plan of the coil and of the cylinder in
which I place it is shewn in Figure 1. a is the heating space which forms a
continuous opening to admit the heat to both surfaces of the water chamber b. c is
the outlet for the water in the centre of the coil, and d is the inlet for the water on
the outer circumference, the said outer circumference being a cylinder into which
I place the coil.
The section is shewn in Figure 2. a is the continuous heating space, b is the
water chamber, c is the outlet, and d is the inlet for the water. The coil is made
in such a manner that the water chamber is formed between two heating surfaces.
The water enters the coil at d and circulates round the whole length of the flat
tube to the centre c, which is the outlet for the water, a forms the continuous
heating space, arranged in such a manner as to allow the heat to pass freely through
the whole of this space.
•

page_text: The section of the tube is delineated in Figure 3, in order to shew clearly the
method of seaming the two pieces together at the edges.
Although I prefer to use a coil constructed in the way I have described yet the
flat shaped tube may be bent, if desired, into a spiral, helicoid, volute, or any
other convenient form.
I have only shewn in my drawings the coil and the cylinder in which I place it,
because the other parts, necessary to make a complete apparatus, may be
constructed in any usual and suitable manner.
"
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
1st. A flat shaped tube, arranged in the form of a coil or in any other twisted
form, substantially as herein described and for the purposes set forth.
2nd. A flat shaped tube arranged in the form of a coil substantially described in
reference to Figure 1, of the annexed drawings, and for the purposes set forth.
3rd. The method of making in two parts and seaming the flat shaped tube,
substantially as herein described in reference to Figure 3 of the annexed drawings
and for the purposes set forth.
Dated this 6th day of July 1896.
FREDERICK GREEN.