AIR PUMP OR BLOWER APPLICABLE FOR OTHER FLUIDS
Year: 1884

page_text: I ALFRED JULIUS BOULT of 323 High Holborn in the County of Middlesex,
Engineer do hereby declare the nature of this Invention for "AIR PUMP OR
BLOWER APPLICABLE FOR OTHER FLUIDS" and in what manner the same is to
be performed, to be particularly described and ascertained in and by the following
statement:-
This Invention is for an improved apparatus for drawing in air or water, and
again forcing it out to any suitable apparatus for use in the arts, having for its
object the supply of air to grain-mills for cleaning or separating the grain; to
houses for heating or ventilating purposes; to mines, wells, &c., either for drawing
out the noxious gases or vapors therefrom or for supplying fresh air thereto and
to carburettor for the admixture of air with fluid for burning purposes, and ali
such like uses; thus superceding the ordinary fan blower and similar contrivances
heretofore used.
:
Further it has for its object to provide an apparatus for cleaning the bottoms of
wells and sewers by sucking out therefrom the accumulation of soft mud or any'
light filth or matter, thus cleansing the same; and also for the cleansing of pipes
and many other such like uses as will be apparent to those skilled, in the arts."
To this end this Invention consists in the construction of apparatus provided
with suitable alternately opening and closing valves, and plunger, in combination
with suitable discharge pipes for the air, or water, and it consists also in the
combination of said apparatus and its compounds with additional pipes all as when
used for, the different purposes herein specified and in the manner substantially
as will be hereinafter more particularly described and pointed out.
Referring to the Drawing Fig. 1 represents a side elevation of this improved
apparatus and Fig. 2 a longitudinal sectional view thereof clearly showing its
working.
Reference being had to the parts by the letters marked thereon A, represents a
chamber or cylinder made of any suitable material, and as shown in the Drawing
is of cylindrical bore although a square form might be employed.
To the ends of the cylinder A is provided a removable head a, each of said
heads being provided with an outwardly opening valve b¹ closing openings in the
heads.
Working through a stuffing box c in one of the heads a, is a rod d carrying the
plunger e which plunger as it is worked back and forth within the cylinder causes
the valves to alternately open and close for drawing air into the cylinder and
discharging it therefrom simultaneously as will be explained hereinafter.
Enclosing the outwardly opening valves on the outer side of the heads are small
chambers g having suitable openings therein, by which said outwardly opening

page_text: valves at the ends of the cylinder are connected by a pipe or tube B, having a
main branch B¹. This main branch is provided at its extremity or at any portion
of its length with a damper i and a flap or vent cover to close an opening in the
side.of said pipe.
By this apparatus as thus constructed a backward stroke being given the plunger
the inwardly opening valve b¹, at the left hand end is caused to open by the partial
suction produced and the external air, while at the same time the outwardly opening
valve b at the opposite end, is caused to open by the pressure. exerted on the air
already contained within the cylinder behind the plunger. Then upon a forward
stroke of the plunger the air.which has been drawn in, b₁ at the left hand, is forced
through the opening of the outwardly opening valve bat said end, and the pressure
at the same time closing b¹..
Upon the forward stroke a partial vacuum is produced behind the plunger and
the pressure of the external air closes valve b at the right hand and opens valve bl
at the same time and thus causing the air to rush in.
It will be seen that by rapidly working the plunger the air is alternately
discharged through the branches of the connecting pipe of the outwardly opening
valves, as it is at the same time alternately drawn in through the openings
controlled by the inwardly opening, valves and that it is simultaneous.
Air can thus be supplied to any place for use, either to heaters, to grain mills, to
houses for ventilation or such like purposes.
The' Drawing shows in dotted lines pipes connecting the inward valves, similarly
as with the others by which it is designed, by flexible connections with said pipe
or otherwise, to draw off soft mud or filth from wells, sewers, &c., by placing the
end, of one pipe in the mud at bottom thereof and discharging said mud through
the other by the manipulation of the plunger as above.
When simply desired to force air this additional pipe may be dispensed with.
When it is desired to cut off the supply of air, the. damper i in the pipe can be
closed and the air may escape through the opening in the pipe covered by flap i.
Any sort of power may be applied to the plunger rod to operate it and it will
be seen that this apparatus possesses many advantages, as water or air can either
be drawn from a vessel or supplied thereto as may be desired and also that light
particles such as grain or flour can readily be transferred from one place to
another.
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,
1st. In a blower or exhauster, the combination of the cylinder having removable
heads, each provided with an inwardly and outwardly opening valve with the
plunger, substantially as described.
2nd. In a blower or exhauster, the combination of the cylinder having openings
at each end alternately controlled by valves, and plunger with the pipes connecting
each like valve, and main pipe, substantially as described.
3rd. In a blower or exhauster the cylinder having the heads provided with
openings controlled by oppositely working valves and surrounded on the outside by
chambers g, the pipes connecting the chambers of each like valve and main pipes
provided with the flap and damper, and the plunger, the whole combined to operate
substantially as described.
Dated this 29th day of July 1884