Improvements in Apparatus for Producing and Using Radiant Heat.
Year: 1898

page_text: Improvements in Apparatus for Producing and Using Radiant Heat.
I, HERBERT JOHN DOWSING, 24, Budge Row, Cannon Street, London, E.C.,
Electrical Engineer, do hereby declare the nature of this invention to be as
follows:-
My invention has for its object the better utilisation of the heat produced by
electricity according to Patents Nos. 26249 of Nov. 20th 1896 and 4786 Feb. 23rd
1897.
I use concentrating or diffusing reflectors whichever may be required, but
in order to make the whole apparatus portable, I combine the reflectors on a
movable or adjustable table in such a manner that they may be spaced any dis-
tance apart or brought together by any convenient means in a very compact
and portable form.
When the reflectors containing the electric heaters are spaced apart for use, I
arrange a connecting or covering portion of metal or other non-inflamable
material to cover the intervening space, thus preventing the too free passage
of air, and when bright metal is used, radiant heat is reflected back into the
chamber so made, or upon the part to be treated.
The reflectors or covers enclosing the heating device may be made in various
shapes, so long as the radiant heat produced is reflected concentrated or diffused
as required.
The reflectors or incombustible material connecting same may be provided
with connectors suitable for supporting or slinging from a stand, or fixing in
any desired position.
The heating effect may be produced by electricity or by any form of
combustion.
Improvements in Apparatus for Producing and Using Radiant Heat.
I, HERBERT JOHN DOWSING, of 24, Budge Row, Cannon Street, in the City of
London,. Electrical 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 invention has for its object the better utilization of radiant heat or light
or combined heat and light produced by electricity or other sources, according
to Patent granted to me Nos. 26,249/96 and 4786/97, whereby any portion or
FPQ11

page_text: the whole of the human body may be conveniently subjected to the action of
heat and light such heat and light being capable of regulation and modification,
according to circumstances; the special object of the improvements which form
the subject of the present invention being to provide a ready and convenient
means of adjustment and regulation.
I use concentrating or diffusing reflectors whichever may be required con-
tained in chambers but in order to make the whole apparatus portable I com-
bine the reflector chambers, which are movable or adjustable, with a table in
such a manner that they may be spaced any distance apart, and brought together
in a very compact form.
In the accompanying two sheets of drawings is illustrated an apparatus con-
structed in accordance with my invention. Figure 1 is a longitudinal section
on line X-x of Figure 2, and Figure 2 a transverse section on line Y-Y
of Figure 1. A is the table or base plate of the apparatus, B the reflector
chambers of which are constructed of copper or other suitable material, the
interior surfaces of which constitute a series of reflectors by which the radiant
heat and light is conveyed to that portion of the body under treatment, which
portion lies between the two reflector chambers and is supported by means of
non-conducting cushions or supports. Care electric incandescence lamps which
in this case are used as the source of light and heat. These lamps are carried
by the ends of the reflector chambers B and by clips B' placed intermediately
therein.
In order that the distance apart of the reflector chambers may be adjustable I
rigidly attach at either end of each chamber the bars D which take into and
slide freely within guide tubes E, which tubes are mounted upon the table or
base plate A by means of supports F. The bars 1) are of such length that they
occupy about one half the length of the guide tube E when the reflector
chambers are closed together.
For the purpose of carrying the inner ends of the reflector chambers, I pro-
vide spring clips G attached thereto, which take over the outside of the guide-
tubes E but which fit sufficiently freely to allow them to slide over same when
the reflector chambers are drawn apart or closed together.
It will now be understood that when it is desired to adjust the reflector
chambers B, the more or less vertical portions D₁ of the bars D, which serve as
handles, are grasped by the operator and, for instance, are drawn away from the
enclosed portion of the body under treatment, whereby a certain length of the
bars D is withdrawn from the guide-tubes E, the spring clips G sliding over
the guide tubes to the same extent. If it is desired to substitute another form
of reflector chamber on the same table or base plate A, the fronts of the spring
clips G are raised as shown in dotted lines Figure 1 which allow the bars Ď
carrying the reflector to be withdrawn until quite free of the guide tubes E,
when another, reflector may be put in place.
When the reflector chambers are spaced apart for use I arrange a connecting
or covering portion of metal or other non-inflammable material H to cover the
intervening space thus preventing the too free passage of air, and when bright
metal is used, radiant heat is reflected back into the chambers or upon that
portion of the body to be so treated. This cover H is provided with a series of
slots which take over studs I according to the distance the reflector chambers
are spaced apart.
For the same purpose as the cover H I provide doors or covers J at one end
of the reflector chambers H as shown in Figure 1.
The reflectors or covers enclosing the heating device may be in various shapes
so long as the radiant heat produced is reflected, concentrated or diffused in the
manner required; they may also be provided with connections suitable for slinging
from a stand or fixing in any desired position.
In certain cases where it is desirable to reduce the intensity of the rays or to
vary the direction I provide screens K interposed between the sources of light

page_text: and heat and the portion of the body under treatment the said screens being
carried in frames which in turn are adapted to slide in guides attached to the
ends of the reflector chambers B. To these screens are attached cords by means
of which they may be raised or lowered to any desired position.
Having now particularly described and ascertained the nature of the said
invention, and in what manner the same is to be performed, I declare that what
I claim is:
First. In apparatus for the production and utilization of radiant heat and
light the employment of the bars D rigidly attached to the reflector chambers B
and sliding within guide tubes E fixed to a table or base plate, A, substantially
as described with reference to the accompanying drawings and for the purpose
specified.
Second. In apparatus for the production and utilization of radiant heat and
light the employment of the bars D rigidly attached to the reflector chambers B
sliding within guide tubes E, fixed to a table or base plate A, and spring
clips G taking over said guide tubes, substantially as described with reference
to the accompanying drawings and for the purpose specified.
Third. Apparatus for the utilization of radiant heat and light constructed
and operating substantially as described with reference to the accompanying
drawings.
Teted his and dare of two 1800