Improvements in Spray Producing Apparatuses and the like.
Year: 1897

page_text: PROVISIONAL SPECIFICATION.
Improvements in Spray Producing Apparatuses and the like.
I, WALTER SHELVERTON FROST, of 92, Copeland Road, Peckham, in the County of
London, Engineer, do hereby declare the nature of this invention to be as
follows:-
The object of my invention of "Improvements in Spray Producing Apparatuses,
and the like " is to construct spray apparatuses, for medical, toilet, disinfecting, or
other purposes, whether actuated by steam, air, or gases, with a simple and effective
nozzle, which may be provided with a regulator, capable of regulating the quantity
of the fluid atomized, in such manner that different quantities of the fluid, can be
brought into the vapour, and sprayed, thus, the power of the spray is varied at will,
as desired.
In the steam spray apparatus, I provide a heating lamp, that will prevent the
danger of spilling the contents, when upset.
In carrying out my invention, for a steam spray apparatus, I propose to construct
the nozzle, by simply soldering, or otherwise fixing a suction pipe, across the end of
the steam pipe, from the boiler, this steam pipe, I prefer to place in an horizontal
position, and the said suction pipe, I place in a vertical position.
I drill a small hole horizontally, straight across the said suction pipe, into the
said steam pipe, this drilling, will form two holes, that is, one on each side, of the
suction pipe. The hole in that side of the suction pipe covering the end of
the steam pipe, should be central in the area, of the last mentioned pipe. This hole
serves, as the steam jet, while the other hole, in the opposite side of the suction
pipe, should be made a little larger, to allow of the free escape of the steam, from the
jet, to produce the proper amount of vacuum in the suction pipe, to draw up the
fluid from a glass vessel, which fluid, when drawn up, by the steam jet, is then sent.
with great force, through the larger hole, in the said suction pipe, in the form of
spray, and vapour.
For the regulator, I extend the said suction pipe, a little above the steam pipe.
Upon this extension, I fit a cylindrical cover, or cap, which is made to revolve easily,
when clinched to a circumferential groove, made in the suction pipe.
The cover, or cap, is turned with the fingers, by means of a milled ball, or button.
I form a valve, by drilling a hole, in the side of the said cover, or cap, through,
and into the said suction pipe, in such manner, that when the cover, or cap,
is turned the valve will open, and close, as the hole, in the suction pipe, is
covered, or uncovered, by the turning of the cover, or cap, thus, altering the
amount of suction, by causing a greater, or less vacuum, in the suction pipe.
For heating the boiler, I make a spirit lamp, to contain spunge, or other absorbing
material, so that when saturated with spirit, it will hold the proper quantity, without
spilling any, and in place of the ordinary wick, I make where the burner is usually
placed, a short neck with a lip, to this lip, I attach a cover, a thin layer of asbestos.
I place in the short neck, upon the saturated spunge, The asbestos being covered by
wire gauze.

page_text: In a modification of the nozzle, a mouth like aperture may be cut, in the said
suction pipe, opposite the steam jet, hole, in place of the before mentioned hole,
opposite the steam jet.
The working of the apparatus, should be as follows:-When the steam is up, and
the regulating valve open, this will be when the holes in the cover, or cap, and the
suction pipe, are opposite each other, giving free access of air, to the said pipe, under
this condition, steam only should come from the nozzle, but as the regulator is
turned, the valve will close, by one hole covering the other. This will increase the
vacuum in the suction pipe, which will cause the fluid, in the glass vessel, to be
drawn up, the suction pipe, and forced in fine spray, by the steam jet, through the
larger hole, opposite the steam jet, the amount of fluid, in the spray, varying, as the
regulating valve is closed, or opened.
For an apparatus, to be used, with air, or gases, of any kind, in place of the steam,
all that is required, is to place the air, or gases, under pressure, by means of India
rubber bags, or pumps, and to attach the before-mentioned steam pipe, to an air, or
gas, chamber, in lieu of the said boiler.
In a cheap form of nozzle, I dispense with the herein before described regulator,
and cut the said suction pipe, nearly down to the said steam pipe, this cut end, of
the said pipe, I leave open. And the said before-mentioned hole, or mouth like
aperture, opposite the steam jet, I make a little smaller to create just the amount
of vacuum, for producing a fixed quantity of spray.
Improvements in Spray Producing Apparatus and the like.
I, WALTER SHELVERTON FROST, of 92, Copeland Road, Peckham, in the County of
London, 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 relates to improvements in the construction and regulation of
spraying apparatus for toilet, medical, disinfecting and other similar purposes whether
such apparatus be operated by steam, air or other gas whereby I am enabled to con-
trol the precise quantity of fluid atomized and to vary the same to any desired extent
within the limits of and during the working of the apparatus, and it also provides
means for preventing the possibility of accident should the lamp be upset, and means
for regulating or extinguishing the same as desired.
My invention consists essentially in the use of a nozzle or suction pipe firmly
attached to and across the outer end of the steam or other jet-pipe and provided
with means for regulating or controlling the spraying of the fluid or the quantity
thereof, and in furnishing the neck or burner of the lamp with an arrangement
whereby the flame of the burner may be reduced from its normal size or be extin-
guished altogether, as will be hereafter described.
Upon the annexed sheet of drawings illustrating my invention,
Figure 1 is a side elevation of a sprayer adapted for toilet purposes, the lamp
thereof being shewn in section.
Figure 2 being an enlarged section through the nozzle and regulator, shewn on the
first figure.
Figure 3 is a similar view but shews the nozzle without the adjustable regulator.

page_text: Figure 4 is a plan view also on an enlarged scale of the lamp neck.
Figure 5 being a section through the same on line 1-2.
Figure 6 is an elevation of a sprayer arranged to be connected by means of
a flexible tube with a boiler or other gas supply and suitable for disinfecting the walls
of hospitals and similar purposes.
In carrying out my invention I secure across the mouth of a steam pipe, jet-pipe
or spout a suitably connected to a boiler or pressure-producing apparatus A, a suction
pipe b extending above and below the level of the steam pipe which latter may be
approximately horizontal. The lower end of the suction pipe 6 communicates with
the liquid to be sprayed contained in a suitable receptacle c, either directly or by
means of a flexible rubber or other suitable pipe b₁, as shewn on Figure 1. The
pipe 6 is furnished at or towards the top with a hole d and at the portion where it
joins the steam pipe a with two suitable holes e e¹, the one e being of a less diameter
than the bore of the pipe a and the outer one e¹ being of a larger size than the inner
one.
These two holes e e¹ are arranged in line and preferably concentrically with the
tube a so that a jet of steam issuing from the steam pipe a may rush across the bore
of the pipe b and escape at e¹. In its passage across pipe b this jet of steam will
draw air into the pipe b through the hole d or, if this latter hole be closed e.g. by
placing a finger over the same, see Figure 3, the steam will spray liquid drawn from
the receptacle c up the pipe b.
In operation, therefore, the liquid may be sprayed or not according as the hole d
is closed or left open. Alternatively I may so form the hole d that by reason of its
size and when uncovered, a certain fixed amount of liquid may be sprayed by the
steam jet, the hole in this case being smaller than in the previous instance and allow-
ing air as well as liquid to be drawn into the suction pipe by the jet.
In this case the amount of spray will be increased on cutting off the supply of air
by closing the hole with the finger.
On Figures 1, 2, and 6 I have illustrated a device for regulating this spraying.
Upon the pipe b is arranged to be rotated a cap f fitted with a milled head, and
having a hole f¹ which latter, on the rotation of the cap, may be caused to coincide
with the hole d which in this case is placed at the side of the pipe, b. The positions
of the holes may be varied in the cap and the pipe, but they are always so arranged
that they can coincide when it is so desired, and admit air into the suction pipe.
This cap serves to close or to open the hole d or to afford any of the intermediate
positions; thus the spraying of the liquid in the receptacle e may take place to the
fullest extent possible, may be stopped entirely, or may be regulated to a nicety by
means of the rotation of this cap; and if air be allowed to enter the tube b through
a hole at d formed partly by the hole d and partly by the hole f¹ but of lesser size
than the hole & itself, the amount of liquid sprayed will be diminished as the air
admitted, increases, until, finally, on fully opening the hole d (the holes in the cap
and pipe coinciding) no liquid at all will be sprayed.
The other portion of my invention relates to an improvement on the lamp or
burner for heating the boiler such as is usually employed in these small portable
sprayers.
The lamp consists of a cup or receptacle g arched over to form a neck g', the
interior being filled with sponge etc. upon which methylated spirit may be poured.
This sponge is provided at top with a layer of asbestos or similar uninflammable
material over which the usual wire gauze may be placed.
As will be seen from Figure 4, the usual heating surface of the lamp is divided
into four equal portions whereof two are protected with wire gauze and the
remaining two m m¹ are covered with metal plates. These covered and uncovered
portions are arranged alternately and the neck n of the lamp is fitted with a revoluble
plate o having an extension or handle o¹.
The revoluble plate has suitable flanges formed thereon and is secured to the neck
as shewn on Figure 5; it is shaped to the forms of the equal portions of the usual
heating area, so that the flame on the gauze portions may be extinguished or reduced
from its normal size by revolving the segmental plate. When not covering the whole

page_text: or portions of the flame area, the revoluble plate is arranged to be located over the
covered portions m m³, see Figure 4.
The boiler A may be heated by a lamp of this improved construction or by any
suitable means.
Where I do not use steam I may use air or other gas under pressure, to cause the
the spraying of the liquid in which case the pipe a will be connected directly or
indirectly to the supply or source of compressed gas.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is
1. In spray producing apparatus, a nozzle device comprising a suction pipe secured
across the jet pipe of the apparatus, which suction pipe communicates with the
liquid to be sprayed, is furnished with two diametrically opposite holes to allow of the
passage of a jet of steam or gas under pressure across the suction pipe and is fur-
nished with a hole allowing the admission of air to cut off or to determine the supply
of liquid to be sprayed, substantially as described.
2. In spray producing apparatus, a regulating device consisting of a cap provided
with a hole and rotatable upon a suction pipe also furnished with a hole, these holes
being capable of coinciding, a suction pipe being secured across a jet-pipe or spout
and said suction pipe communicating with the liquid to be vaporized and being fur-
nished with diametrically opposite holes allowing the vaporizing steam or gas to
pass from said jet-pipe across the suction pipe and to escape from the outer larger
hole, the amount of liquid sprayed by said jet of gas being variable or reducible by
admitting air into the suction pipe through the regulating cap, substantially as
described.
3. In spray producing apparatus and the like, the combination with the jet-pipe of
the apparatus, of a suction pipe secured thereto and having holes de e¹, and a regu-
lating cap frotatable upon said suction pipe and having a hole f¹, substantially as and
for the purposes described.
4. In spray producing apparatus, the combination with a spirit lamp for heating
the boiler thereof, and provided with a rotatable cover o adapted to regulate the flame,
of a suction pipe 6 provided with holes de e¹, and having, if desired, a regulating
cap provided with a hole f¹, substantially as and for the purposes set forth.
Dated this 26th day of January 1898
Dated this 26th day of January 1898.
For the Applicant,
GEDGE & FEENY,
60, Queen Victoria Street, London, E.C., Chartered Patent Agents.