Improvements in Apparatus for Producing Jets of Steam for Ventilation and other Purposes.
Year: 1892

page_text: Date of Application, 18th Aug., 1892
Complete Specification Left, 18th May, 1893-Accepted, 24th June, 1893
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Producing Jets of Steam for
Ventilation and other Purposes.
I, GEORGE ROSE, of 105 Bishop Street, Glasgow, Engineer, do hereby declare
the nature of this invention to be as follows:-
This invention relates to an apparatus for ventilating houses, ships, rooms,
drains and other interiors or places, although it can be used for other purposes.
The invention consists in fitting in, or in connection with, any suitable part of
the building or other interior, a closed tank or vessel which is partially filled with
water from the main or other suitable source of supply. The water supply is,
preferably, regulated by a ball cock or valve or their equivalents. The tank is or
may be divided into compartments by a suitable partition or partitions. A pipe
connection having a suitable regulating valve on it conveys water from the tank to
a coil pipe, annular chamber or other suitable steam generator. The generator is
heated by means of a Bunsen or other gas burner, oil lamp or a fire. A portion of
the steam generated in the generator is conveyed by a pipe connection, preferably
provided with a regulating valve, to the water tank, for the purpose of creating a
pressure in the water tank, and thereby allow the water in said tank to flow freely
to the generator, under the action of gravity. A portion of the steam from the
generator or from the steam space of the water tank is drawu off by a pipe
connection to a small blower or nozzle. This nozzle may be fitted in the inside of
a converging and diverging cone-shaped delivery tube. The jet or blower is or
may be fitted in the inside of the ventilating shaft or passage.
A small cup or receptacle for collecting any drops of condensed steam may be
fitted round the blower or nozzle. The condensed water in the cup may be drawn
off by a suitable pipe connection to a gutter, which is or may be fitted in the inside
of the ventilating shaft or passage. The gutter collects any water which may
trickle down the sides of the shaft or passage.
If preferred, the water tank may be fitted on top of or above the heating
appliance or the casing or chamber surrounding said appliance.
The top of the ventilating shaft may be fitted with any suitable cowl or hood.
The water tank and heating device may be so fitted together, as to be portable.
The invention may be applied for any purposes where a jet of steam is required.
The water tank is, or may be, provided with a gauge and safety valve.
A small casing may be fitted round both the generator and the heating appliance,
for the purpose of preventing the induced draft in the ventilating shaft blowing
out the flame of the burner, and also for the purpose of confining the heat round
the generator.
Dated this 17th day of August 1892.
H. D. FITZPATRICK,
70, Wellington Street, Glasgow, Agent.
COMPLETE SPECIFICATION.
Improvements in Apparatus for Producing Jets of Steam for
Ventilation and other Purposes.
I, GEORGE ROSE, of 105 Bishop Street, Glasgow, 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:-
This invention relates to an apparatus which is mainly adapted for ventilating
houses, ships, rooms, drains, and other interiors or places although it can be used
for other purposes.

page_text: The invention consists in fitting in, or in connection with, any suitable part of
the building or other interior, a closed tank or vessel which is partially filled with
water from the main or other suitable source of supply. The water supply is,
preferably, regulated by a ball cock or valve or equivalent. The tank is or may
be divided into compartments by a suitable partition or partitions. A pipe con-
nection, having a suitable regulating valve on it, conveys water from the tank to a
coil pipe, annular chamber, or other suitable steam generator. The generator is
heated by means of a "Bunsen" or other gas burner, oil lamp, or a fire. A portion
of the steam generated in the generator is conveyed by a pipe connection, preferably
provided with a regulating valve, to the water tank, for the purpose of creating a
sufficient pressure in the tank to balance the back pressure in the generator. When
the pressure within the tank balances the pressure in the generator the water flows
freely and continuously from the tank to the generator by gravitation.. The
generator is, in this manner, fed automatically. A portion of the steam from the
generator or from the steam space of the water tank is drawn off by a pipe
connection to a small blower or nozzle. This nozzle may be fitted in the inside of
a converging and diverging cone-shaped delivery tube. The jet or blower is or may
be fitted in the inside of the ventilating shaft or passage.
A small cup or receptacle for collecting any drops of condensed steam may be
fitted round the blower or nozzle. The condensed water in the cup may be drawn-
off by a suitable pipe connection to a gutter, which is or may be fitted in the inside
of the ventilating shaft or passage. The gutter collects any water which may
trickle down the sides of the shaft or passage.
If preferred, the water tank may be fitted on top of or above the heating
appliance or the casing or chamber surrounding said appliance.
The top of the ventilating shaft may be fitted with any suitable cowl or hood.
The water tank and heating device may be so fitted together, as to be portable.
The invention may be applied for any purposes where a jet of steam is required.
The water tank is, or may be, provided with a gauge and safety valve.
A small casing may be fitted round both the generator and the heating appliance,
for the purpose of confining the heat round the generator.
And in order that my said invention may be properly understood I have hereunto
appended an explanatory sheet of drawings, whereon,
Fig. 1 is a side view, partly in section, of the apparatus.
Fig. 2'shows the apparatus as fitted for ventilating halls etc.
Figs. 3 and 4 show different constructions of the apparatus.
Fig. 5 is a section of a ventilating cowl.
Fig. 6 is a section of an annular steam generator.
Fig. 7 shows a method of ventilating a building.
Referring to the drawings whereon the same reference letters wherever repeated
indicate similar or like parts.
"
a is the generator which consists of a coil pipe 6 fitted in a casing c. The
casing is filled or partially filled with asbestos d or the like. e is the "Bunsen
gas burner. e' is the gas pipe. f is a pipe leading from the water supply tank g
to the bottom of the coil . h is a pipe leading from the top of the coil & to the
steam jet pipe i. jis the water in the tank g. k is a water supply float- or ball-
valve. is a pipe leading from the main, or other source of water supply, to the
valve k. m is a controlling valve on pipe f. n is a water gauge. o is a pressure
gauge. p. is a regulating valve on the pipe i. q is the steam jet nozzle. r is a
dish for collecting water of condensation. s is a tube for drawing off the water
from the dish. t is the ventilating shaft. This shaft, as shown at Fig. 2, is, or
may be, made with a bend or elbow t¹ in it for the purpose of preventing water of
condensation trickling down into the ventilator cover and from thence into the
room. is a pipe for drawing off water from the bend t¹. w is a ventilator
having louvres 20' and an internal revolving cowl w². The cowl is turned by
means of a vane w³ fitted on the upper end of its spindle. a are pipe connections
leading to the main ventilating shaft. y is a gutter made in the shaft t (Fig. 1).

page_text: The action of the apparatus is as follows:
-
The "Bunsen" gas burner e is first lighted and allowed to heat up the generator
to a temperature sufficient to generate steam. The cock m is then gradually
opened so as to supply water from the tank g to the generator. The steam given
off by the generator passes by the pipes h, i to the jet nozzle q and by the
branch, to the upper part of the tank g, which, as shown, is only partially filled
with water. The jet orifice of the nozzle g is, preferably, made very small, say g
or 16, so that the steam, which is generated very rapidly within the coil pipe b,
issues from the nozzle at a considerable pressure-say 40 lbs. to the square inch,
and creates a powerful induced current up the shaft t. As the space at the upper
part of the tank g, is in direct communication with the pipe h, it follows that the
steam pressure within said tank must, at all times, be the same as that within the
pipe h, and coil b. As a consequence the pressures in the tank g and generator are
balanced, and, as the water supply is at a slightly higher elevation than the coil b,
the water-feed flows into said coil whilst the apparatus is working and maintains a
constant and regular water supply. The generation of steam is therefore steady,
continuous, and automatic, so long as the burner e is alight.
As fast as the water is withdrawn from the tank g, a fresh supply is automatically
provided from the main by means of the ball valve k.
In some cases, when a pipe connection to the main cannot be had, the water
tank g may be made with a hole in its top through which it can be filled.
When
the tank is supplied with water the hole can be closed up by a screw plug. In this
case, of course, the tank would have to be filled at intervals of shorter or longer
duration according to the amount of water supplied to the generator.
As shown in Fig. 2 a steam heater z may be fitted in connection with the
apparatus. 2 is a steam pipe leading to the heater.
In Fig. 3 the water tank g, which is a small one, is shown as fitted on top of the
casing c. The tank has a handle g¹ for portability. This tank, which is not in
communication with the main, is provided with a filling plug gs is a funnel.
In Fig. 4 the water tank g. is shown as fitted into the top of the casing.
The apparatuses shown in Figs. 3 and 4 are very compact and are suitable for
employment in situations where small steam jets are required.
The annular steam generator &', 'shown at Fig. 6, may be used in lieu of a coil
pipe if so desired. This chamber may be of any well known and suitable
construction.
Any suitable form of generator may be used with the apparatus, although I
prefer a coil pipe or annular chamber.
In Fig. 7, the compartments of the building are ventilated by means of pipes o
which pass out through the walls. These pipes have nozzles in them supplied with
steam from the main steam pipes o2 and branch pipes o³. The pipes o³ are provided
with cocks of to enable the ventilating jets to be turned on or off at will.
The parts of the apparatus may be arranged and constructed differently from
the methods illustrated on the drawings without departing from the principle of
the invention.
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. An apparatus for producing jets of steam for ventilation and other purposes,
constructed, arranged, and operating substantially as hereinbefore described with
reference to Figs. 1, 3, and 4 of the drawings annexed, or any mere modification
thereof.
H. D. FITZPATRICK,
70, Wellington Street, Glasgow, Agent.