Suffering from Throat or Lung Complaints.
Year: 1888

page_text: Date of Application, 17th Nov., 1888
Specification Accepted, 21st Dec., 1888
Suffering from Throat or Lung Complaints.
I, LOUIS WEIGERT, of 30, Genthinerstrasse, Berlin, in the Kingdom of Prussia
and Empire of Germany, Physician, 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 supplying heated air of a suitable
temperature for inhalation by persons suffering from diseases of the throat and lungs.
The way in which I prefer to carry out the present invention is represented in
the accompanying drawings, whereof Fig. 1 shews in side elevation the improved
apparatus; Fig. 2 being a vertical section thereof to an enlarged scale.
The apparatus d and the burner e, or other source of heat, are respectively
arranged to slide upon a rod a, to which they may be clamped in the desired positions
by means of the screws b and c. The apparatus d consists of an inner hollow
cylinder preferably made of sheet copper and open at the bottom; the top thereof
being provided with a thin curved or arched lid or cover g furnished with two
openings h h in which are mounted two funnel-shaped tubes or flues i i. The hollow
cylinder is provided with a flange k and stands upon an annular support 1; move-
ment in a vertical direction being prevented by means of flat spring-blades m,
hereinafter more particularly referred to. Within the flange k of the hollow cylinder f
is secured a second hollow cylinder n which forms a hood open at the bottom and
closed at the top by the lid or cover p. The hollow cylinder n is furnished towards
the bottom with a number of openings o through which air is permitted to flow
into the apparatus. The lid or cover p of the hood n has three openings 99 and r,
through two of which (the openings 9 9) are passed the funnel-shaped tubes or
The hood n is
flues i; a funnels being firmly mounted in the opening r.
surrounded by a casing t of non-conducting material, such as asbestos pulp, which
serves to intercept the radiation of heat from the hood n; uniformity of temperature
of the air within the space u, formed between the hollow cylinder and the hood n,
being hereby better maintained. The spring-blades m press against the outer

page_text: periphery of the casing t, and, the hood n being fixed within the flange k, the whole
apparatus is firmly held upon the support 1. In the funnel s is mounted an elbow-
pipe v, which conducts the air heated in the space u to the mouth-piece w prior to
inhalation by the patient. In the tube x, which projects from the elbow-pipe v, a
thermometer y is fitted hermetically and serves to indicate the temperature of the
heated air. In order to prevent the patient, after inhaling warm air from the
space, breathing into the latter and thus vitiating the air therein, the elbow-pipe v
is furnished with suction and delivery valves. The conical valve z, which rests
against the seat w¹, opens outwardly and closes upon air being exhaled by the patient.
The valve, which rests against the seat, in the part ³, closes when inhalation of
the heated air takes place and opens when air is exaled. Thus, when the air is
being inhaled through the mouth-piece wo, the valve z is open and the valve ¹ closed;
and, when air is being exhaled through the said mouth-piece, the valve is closed
and the valve ¹ open. To increase the sensibility of the valves z and ¹, they are
made of very light material, such for example as aluminium; the valve z being
placed in the horizontal branch of the elbow-pipe ", while the valve ¹ is arranged
vertically so as to open automatically when the inhalation of warm air ceases.
pins are employed to limit the movements of the valves z and 2¹.
The
When the apparatus is in use, the hollow cylinder f is heated by means of the
burner e or equivalent heating device; the products of combustion escaping through
the pipes The air drawn through the openings o into the space u becomes
heated whilst flowing along the periphery of the hot cylinder f, and after passing
through the pipe and the valve z is inhaled by the patient through the mouth-
piece w..
w...
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I claim :-
1. Apparatus for warming air for inhalation arranged or operating substantially as
set forth.
2. An apparatus for producing warm air for inhalation comprising a chamber (f),
heated by a burner (e) or equivalent heating device, fitted with outlets (ii)
for the escape of the products of combustion, and surrounded by a casing (n),
the space (u) intervening between the chamber and the casing serving as a passage
for air which enters through openings below, becomes heated through contact with
the central chamber (f) and ultimately escapes from the upper part of the space (u)
by way of a conduit furnished with valves (1) for inhalation and exhalation
respectively.
Dated this 17th day of November 1888.