Improvements in Apparatus for Ventilating Buildings, and Heating, Cooling, and Moistening the Air contained therein.
Year: 1893

page_text: Date of Application, 24th Oct., 1893-Accepted, 27th Jan., 1894
COMPLETE SPECIFICATION.
Improvements in Apparatus for Ventilating Buildings, and Heating,
Cooling, and Moistening the Air contained therein.
I, ROBERT LOFTHOUSE, of 15, Wright Street, Greenheys, Manchester, in the
County of Lancaster, Ventilator Manufacturer, 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 has for its object to facilitate the ventilation of buildings and the
heating, cooling, and moistening of the air contained therein by means of steam
and water in such a manner that steam at low pressure, say 5 lbs., can be used and
the temperature in buildings can be raised and lowered or the air therein more or
less moistened without increase or decrease of steam pressure.
And in order that my invention may be more fully understood I have caused to
be appended hereunto three sheets of drawings marked with letters of reference
indicating like parts in the various figures.
Figs. 1 & 2, Sheet I, are respectively a vertical and a longitudinal section and
Fig. 3 a plan of my improved ventilating apparatus with horizontal inlet tube as
used for supplying buildings with fresh air.
Fig. 4, Sheet II, is partly a longitudinal section and partly a side view of the
apparatus as used for moistening and heating air. Fig. 4A is a cross section at
line A-B of Fig. 4. Fig. 5 is a longitudinal section and Fig. 5 a cross section
at line C-D of Fig. 5, and Fig. 6 a plan of the apparatus (with deflecting plate
shown removed) as used for ventilating buildings and humidifying air.
Fig. 7, Sheet 111, is a longitudinal section of a modification of the apparatus. ·
In carrying out my invention and referring to the figures generally, I employ on
the lower end of the air delivery tube a facing the deflecting plate ba movable
tube piece e with or without flange c' whereby the opening d between the same and
the deflecting plate 6 can be varied in size and thus the temperature in the
building raised or lowered or the air moistened accordingly without increasing or
decreasing the amount of steam pressure.
The bottom of the deflecting plate 6 (Sheet I) I form with a water receiver e
having an outlet e' adapted to receive a pipe. The receiver e serves to catch the con-
densed or waste water and the said pipe to convey the same to any convenient place.
Inside the tube a I employ a spray arrangement consisting of a steam and water
service pipe & g respectively, the nozzles f¹ & g' of which are formed with
comparatively large orifices and arranged relatively adjustable at a right angle to
each other, a cover being employed to protect the said nozzles from dust. The
pipe fis furnished with a valve to cut off or establish, as may be required,
communication with a suitable steam source, whilst the pipe g receives its water
from a cistern a' formed externally on the tube a fed by a supply pipe a².
In order to facilitate either the use of the air contained in a building or fresh
air from the outside, a dual valve i, Fig. 2, may be employed in connection with
the delivery pipe a and the inner end of an inlet pipe k in communication therewith
so as to close either the upper or inlet end of the tube a or the inner end of the
inlet pipe k. In this case however, the spray arrangement f, f¹ & g, g¹ is positioned
in about the middle of the tube a.
Figs. 4 & 4*, Sheet II, illustrate the apparatus shown in Figs. 1 & 2, furnished
with a heating coil / employed in the air inlet k supplied with steam by means of
the main pipe m furnished with the main valve m² and a drain pipe n, having a
valve n', which latter serves to drain off the condensed water from the pipe o before
admitting steam thereto. The steam enters the heating coil at land
may
leave

page_text: the same at 12 or be conveyed to the main steam pipe m by a pipe l³, as shown in
dotted lines, so as to supply the steam nozzle f₁ with exhaust steam from the
heating coil 7.
To enable the cistern a³ of being automatically supplied with water I connect its
pipe a² to a water tank p furnished with an inlet pipe p! having a ball tap på and
an overflow pipe p³. In this case the supply of steam for the steam nozzle f¹ takes
place from the main pipe m through the pipe o having also a valve o' above which
I fit to the pipe o a steam gauge o which enables to regulate the steam pressure in
the pipe o in accordance with the change in the atmosphere externally.
Figs. 5, 5 & 6, Sheet II, show a horizontal form of delivery tube a having a
depression a which is formed with slots a' in connection with a deflecting plate o
against which latter the moist air issues through the slots. a', the depression a
being adapted to convey back into the tube a the condensed water. One end of
the tube a is also furnished internally with a steam and water nozzle f¹ & g' and
at one end with a water cistern a' similar as shown in the vertical form.
k
Fig. 7, Sheet III, shows another horizontal form of apparatus without heating
coil, the inlet pipe & having an elbow end a pointing downwards furnished with an
adjustable tube part e and issuing the moisted air into a deflecting plate b.
The cooling of the air by the apparatus described takes place by reason of the
cool air thereby drawn in, mixing with the hot air contained in the building aud
setting up evapouration.
In lieu of steam, a blast of air may be used, but by preference I use steam.
Having now particularly described and ascertained the nature of my inven-
tion and in what manner the same is to be performed, I declare that what I
claim, is―
"In Apparatus for Ventilating Buildings and Heating, Cooling and Moistening
the Air contained therein."
1st. The general construction and combination of parts constituting my invention
operating substantially as set forth.
2nd. A spray arrangement consisting of two nozzles ƒ¹ & g' having large orifices
employed inside an air delivery tube a with a movable tube part c, the nozzle f
being adapted to receive steam or air at a low pressure, and the movable tube
parte to increase or decrease the opening d between the latter and a deflecting
plate for the purpose of varying the temperature of air or its moisture without
increasing the pressure or quantity of steam or air used, substantially as set forth.
3rd. The employment of a drain pipe n and valve n' in connection with the steam
or air feed pipe m (Fig. 4) for the purpose of removing the condensed steam from
the pipe o, substantially as set forth.
4th. The employment of a pressure gauge o² and regulating valve o' in connection
with the steam or air pipe o which supplies the nozzle 1 for the purpose of
regulating the steam or air pressure in the pipe o in accordance with the change in
the atmosphere externally as may be required, substantially as set forth.
Dated this 23rd day of October 1893.
F. BOSSHARDT & Co.,
4, Corporation Street, Manchester, Agents to Applicant.