Improvements relating to Aerating and Water Pumps.
Year: 1890

page_text: Date of Application, 1 th Dec., 1890
Complete Specification Left, 17th Sept. 1891-Accepted, 5th Dec., 1891
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PROVISIONAL SPECIFICATION.
Improvements relating to Aerating and Water Pumps.
I, JOHN PITT BAYLY, of 18 Fulham Place, Paddington in the County of
London, Patent Agent, do hereby declare the nature of this invention (a com-
munication to me from abroad by Robert Dacus, of Dardanelle, Arkansas, U.S.A.
Inventor,) to be as follows:-
My invention is an improvement in that class of pumps which are adapted both
for raising water and simultaneously introducing air into the tank or well from
which it is drawn. Heretofore the pumps devised for this purpose have usually been
too complicated, bulky, and expensive to adapt them to the economical and other
requirements of ordinary use, and I have therefore devised an aerating attachment
for an ordinary force-pump whose simplicity of construction enables it to be easily
applied at small cost, and whose efficiency equals that of the most expensive
apparatus for a like purpose.
I will first briefly describe the parts of the pump to which my aerating attach
ment is applied.
Two cylinders having, respectively, pistons, and a common piston rod, are
arranged in vertical alignment and screwed into an intermediate chambered union-
coupling. An ordinary water-discharge pipe connects with one of the chambers of
this coupling and an air-tube with the chamber on the opposite side. A valve
adapted to open upward is arranged at the lower end of the water cylinder, and a
water-lift pipe is attached to the lower head of said cylinder. Two rods connect
the head and coupling.
My aerating attachment is composed of the following parts, constructed and
arranged as stated: A chambered.cap-piece having a stuffing-box for the piston rod
is applied to and forms the head of the air cylinder, and is secured in place by rods
that pass through ears of the cap and coupling. This cap-piece has screw threaded.
nipples on opposite sides to provide for convenient attachment of the valve tubes.
To one of these tubes is attached an air-conducting pipe which extends downward
and in practice enters the water alongside the lift-pipe. An upwardly-extending
air-inlet pipe is attached to the other valve-tube.
It will be noted that the valves in tubes open in the same direction and operate
as check valves to allow passage of air from the pipe into the cylinder and from the
latter into pipe but prevent its return..
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In practical operation, when the rod with its attached pistons is reciprocated,
water is drawn into the cylinder on the upstroke, and air is simultaneously expelled
from cylinder into the pipe, and by it conducted down into the water. On the return
or down stroke air enters the cylinder through the pipe to supply the vacuum behind
the descending piston, and the piston of the cylinder allows the water therein
(which entered on the upstroke) to pass above it. Then on the next upstroke the
water is expelled through the pipe (being cushioned by the air between the piston
and in the standing tube) and air is again forced into the body of water in the well
or tank. This attachment-composed, essentially, of the parts as above described―
is simple and inexpensive, yet efficient, and may be applied with but slight changes,.
requiring nothing but ordinary mechanical skill and judgment, to, the upper
cylinders of pumps of various common kinds.
Dated this 17th day of December 1890.
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page_text: COMPLETE SPECIFICATION.
Improvements relating to Aerating and Water Pumps.
I, JOHN PITT BAYLY, of 18 Fulham Place, Paddington, in the County of
London, Patent Agent, do hereby declare the nature of this invention (a communi-
cation to me from abroad by Robert Dacus, of Dardanelle, Arkansas, U.S.A.
Inventor,) and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement:-
My invention is an improvement in that class of pumps which are adapted both for
raising water and simultaneously introducing air into the tank or well-from which
it is drawn. Heretofore the pumps devised for this purpose have usually been too
complicated, bulky, and expensive to adapt them to the economical and other
requirements of ordinary use, and I have therefore devised an aerating attachment
for an ordinary force-pump whose simplicity of construction enables it to be easily
applied at small cost, and whose efficiency equals that of the most expensive
apparatus for a like purpose.
Reference is to be had to the accompanying drawings, forming a part of this
Specification, in which similar letters of reference indicate corresponding parts in
all the figures.
Figure 1 is a side elevation of the complete device viewed in direction of an
arrow in Fig. 3.
Fig. 2 is a side elevation viewed-from the same point as Fig. 1, the main portion
being broken into section, showing the interior.
Fig. 3 is a plan in section taken on the line 3.3-in Fig. 1.
Fig. 4 is a plan in section taken-on-the-line-4-4-in-Fig. 1, and
Fig. 5 is a sectional side elevation-taken-on-the-line-5 5-in-Fig1-and-viewed in.
direction of an arrow in said figure.
I will first briefly describe the parts of the pump to which my. aerating attach-
ment is applied.
Two cylinders A and B, having, respectively, pistons mando and a common
piston-rod u, are arranged in vertical-alignment-and-screwed-into-an-intermediate
chambered union-coupling c. An ordinary water-discharge pipe f connects with
one of the chambers e of this coupling and an air-tube g with the chamber_e_on
-the opposite side. A valve a, adapted to open inward, is arranged at the lower end
of the water-cylinder A, and a water-lift pipe & is attached to the lower head b of
said cylinder. Two rods d connect the head band coupling c, as shown best in
Figs. 1 and 4.
My aerating attachment is composed of the following parts, constructed and
arranged as stated: A chambered cap-piece, having a stuffing-box p for the
piston-rod u, is applied to and forms the head of the air-cylinder B, and is secured
in place by rods, that pass through ears i¹ of the cap and coupling c, as shown
in Figs. 1 and 3. This cap-piece h has screw-threaded nipples on opposite sides
to provide for convenient attachment_of_the_valved_tubes_k_and_k!. To one of
-these-tubes is attached an air-conducting pipe S, which extends downward and
in practice enters the water alongside the lift-pipe b', as best shown in Fig. 5. An
upwardly-extending air-inlet pipe r is attached to the other valve-tube k.
It will be noted (Fig. 5), that the valves in tubes k k¹ open in the same direction
and operate as check-valves to allow passage of air from pipe r into the cylinder B
and from the latter into pipe S, but prevent its return.
.
I practical operation, when the rod u, with its attached pistons m and o, is
reciprocated, water is drawn into cylinder A on the up stroke, and air is
simultaneously expelled from cylinder B into pipe S, and by it conducted down
into the water. On the return or down stroke air enters the cylinder B through
piper to supply the vacuum behind the descending piston o, and the piston m of
cylinder A allows-the-water-therein (which entered on the upstroke) to pass above

page_text: it. Then on the next upstroke the water is expelled through pipe, (being
cushioned by the air between the piston and in the standing tube g,) and air is again
forced through pipe S into the body of water in the well or tank. This attachment-
composed, essentially, of the parts h Srk k³, as above described is simple and
inexpensive, yet efficient, and may be applied with but slight changes, requiring
nothing but ordinary mechanical skill and judgment, to the upper cylinders of
pumps of various common kinds.
Having now particularly described and ascertained the nature of this my said
invention, and in what manner the same is to be performed, I declare that what I
claim is:
1. The improved aerating attachment for pumps, the same consisting of the
cap-piece for a pump-cylinder, valved tubes k and k¹, attached to it laterally, and
the pendent vertical tube S, connected to said tube k¹ for conducting air down into
the water, and the opposite inwardly-extending air-inlet tube r, all as shown and
described.
2. The combination, with the vertically-aligned water and air cylinders A and B,
their connected pistons mo, and the water inlet and discharge pipes 61 and f,
arranged as specified, of the aerating attachment, consisting of the cap-piece h,
applied to cylinder B, the lateral valved tubes k k¹, the air-conducting tube S,
arranged vertically pendent alongside said cylinders, and the air inlet tube
T, all as
shown and described, and adapted to operate as specified.
Dated this 17th day of September 1891.
J. P. BAYLY,
Applicant.