Year: 1896

page_text: We, TANGYES LIMITED, of Cornwall Works Soho, in the County of Stafford,
Engineers, and EDWARD BARNES, of No. 178 Soho Hill Handsworth in the County
of Stafford, Mechanical Engineer do hereby declare the nature of this invention
to be as follows:-
The said invention consists in constructing and arranging the parts of pumping
engines in the manner hereinafter described, whereby great economy in the
motive power employed in working the said pumping engines is effected.
The said invention is especially applicable to the raising of water from deep
wells, bore holes or mines but is also applicable for pumping generally.
The pumping engines constructed according to the said invention may be actuated
by steam, compressed air or other motive power.
We will describe the said invention in connection with the raising of water from
à deep well and as being actuated by steam.
We employ an ordinary vertical direct acting steam cylinder with a distance
piece of the required length connected to a combined delivery pipe and standard.
To the delivery pipe and standard we connect and suspend therefrom, main pipes
to the required depth and to the end of these pipes we secure the working barrel
with its suction pipe and valve. In the power cylinder is an ordinary piston, the
piston rod of which passes through stuffing boxes and glauds in the distance piece
bereinbefore referred to. To the said piston rod the pump bucket is connected by
means of a pump rod passing down the main pipe.
In combination with the arrangement of parts described we employ an auxiliary
steam cylinder with its piston and rod coupled direct to the piston of the power
cylinder. We make the said auxiliary cylinder of such a capacity that the steam
acting on the underside of its piston (the top side of the cylinder being open to the
atmosphere) balances the rods and. half the load. This is effected by connecting
the lower end of the auxiliary cylinder with the steam supply pipe.
The action of the parts described is as follows:-
When working under normal conditions, that is to say, when charged with water
to the surface, the action is similar to that of an ordinary direct acting pump; the
main steam piston when making an upward stroke has a load equal to half the area
of the bucket multiplied into the pressure due to the column of water and the
auxiliary cylinder carries the weight or load due to the rods, bucket and pistons
plus the other half of the load. When descending the main piston has a load
equal to the excess of pressure on the auxiliary piston over the weight of the rods,
bucket and pistons, that is, half the water load, thus equalizing the effort of both
strokes.
While in operation the only steam used in the auxiliary cylinder will be that due
to condensation and leakage as only an oscillation of the steam from and to the
steam pipe takes place.
The combination described is applicable to a pump discharging at the surface
but it may be modified to suit the varying conditions incidental, to pumping

page_text: We wish it to be understood that we do. not limit ourselves to the vertical
position of the power and auxiliary cylinders.
Dated this First day of August 1896
W. T. WHITEMAN,
Agent for the Applicants,
. COMPLETE SPECIFICATION.
Improvements in Pumping Engines.
We,, TANGYES LIMITED, of Cornwall Works, Soho, in the, County of, Stafford,
Engineers and, EDWARD BARNES, of No. 178, Soho Hill,, Handsworth, in the
County, of Stafford, Mechanical Engineer, do hereby declare the nature of the said
invention and in what manner the same is to be performed to. be particularly
described and ascertained in and by the following statement :-
The said invention consists in constructing and arranging the parts of pumping
engines in the manner hereinafter described, whereby great economy in the motive
power employed in working the said pumping engines is effected.
The said invention is especially applicable to the raising of water from deep
wells, bore holes or mines but is also applicable for pumping generally.
The pumping engines constructed according to the said invention may be actuated
by steam, compressed air or other motive power.
We will describe the said invention in connection with the raising of water from
a deep well and as being actuated by steam.
We employ an ordinary vertical direct acting steam cylinder with a distance
piece of the required length connected to a combined delivery. pipe and standard.
To the delivery pipe and standard we connect and suspend therefrom, main pipes
to the required depth and to the lower end of these pipes we secure the working
barrel with its suction pipe and valve. In the power cylinder is an ordinary piston,
the piston rod of which passes through stuffing boxes and glands in the distance
piece hereinbefore referred to. To the said piston rod the pump bucket is
connected by means of a pump rod passing down the main pipe.
. In combination with, the arrangement of parts described we employ an auxiliary
steam cylinder with its piston and rod coupled direct to the piston of the power
cylinder. We make the said auxiliary cylinder of such a capacity that the steam
acting on the underside of its piston (the top side of the cylinder being open, to
the atmosphere) balances the rods and half the load. This is effected by.connecting
the lower end of the auxiliary cylinder with the steam supply pipe.
The action of the parts described is as follows-When working under normal
conditions, the action is similar to that of an ordinary direct acting pump; the
main steam piston when making an upward stroke has a load equal to half the area
of the bucket multiplied into the pressure due to the column of water and the
auxiliary, cylinder carries the weight or load due to the rods, bucket and pistons,
plus the other half of the load. When descending, the main piston has a load
equal to the excess of pressure on the auxiliary piston over the weight of the rods,
bucket and pistons, that is, half the water load, thus equalizing the effort of
both strokes.
While in operation the only steam used in the auxiliary cylinder will be that
due to condensation and leakage as only an oscillation of the steam from and to, the
steam pipe takes place.
We wish it to be understood that we do not limit ourselves to the vertical position
of the power and auxiliary cylinders or to the number as the said invention. is
applicable to one or more cylinders either of the duplex direct acting, or, of the
multiple cylinder crank type.

page_text: Figures 1 and. 14 represent in vertical section a pumping engine constructed
according to this invention for raising water from deep wells or bore holes, Figure 1
showing the upper portion of the pumping engine and Figure 14 the lower portion
or a continuation of the same pumping engine as Figure 1;
Figure 2 represents a modified bye pass valve which may be used as hereinafter
explained and
Figure 3 represents in vertical section, drawn to a large scale, mechanism for
facilitating the withdrawal of the suction or foot valve of the pump from and its
replacement in the working barrel.
The same letters of reference indicate the same parts in Figures 1, 14, 2 and 3.
a is the suction pipe of the pump provided with the suction or foot valve b;
c is the single acting working barrel to the summit of which the rising main or
pipe is connected, the latter supporting the standard and delivery chamber d and
the distance piece d'; e is the bucket in the working barrel c and e², e are the rods
of the said bucket connected to the ram in the delivery chamber d. Above the
distance piece d' is the driving or motor cylinder a of any of the ordinary direct
acting types; y is the piston working in the power or motor cylinder and is the
rod of the same passing through a gland in the distance piece d2 and connected to
the ram f; m is the steam pipe supplying steam in the ordinary way to the power
cylinder a and n is the exhaust pipe in communication with the atmosphere.
the summit of the power or motor cylinder a is the auxiliary or balancing_steam
cylinder, the piston y2 of which is secured to the piston rod of the power or
motor cylinder & which rod extends through the top cover p of the said motor
cylinder a as represented in Figure 1. Steam is only made to act on the underside
of the piston y of the auxiliary or balance cylinder 2, the top side of the said
piston being open to the atmosphere; o is the steam admission port in the balance
cylinder the said port being in communication with the steam pipe m and o² is the
exhaust port in the balance cylinder the said port being in communication with the
atmosphere through the exhaust pipe n.
On
The ports o, o are placed in such positions near the ends of the cylinder that
the piston y when approaching either end of its stroke shall pass and close the
said ports. By this arrangement the steam on the down stroke of the piston and
the vapour or air on the upstroke of the said piston are imprisoned and compressed,
thus forming elastic cushions or elastic buffers for overcoming the momentum of
the moving parts.
The amount of compression is adjusted by means of the bye pass valves 9,7
which may either be of the construction shown in Figure 1 or that shown in
Figure 2. In the latter case the small free valve q very readily permits the
steam or air respectively to enter the cylinder on the return stroke of the
piston.
It will be understood that the auxiliary or balance cylinder is so proportioned
that the steam acting on the underside of the piston y (the upper side being open
to the atmosphere) shall carry the weight of the moving parts, namely the pistons y
and y², the rod of the two cylinders and ²; rain, pump rods e and bucket e
in addition to half the load on the bucket consisting of half its area multiplied
by the head to which the water has to be lifted less the proportion due to the
ram. By thus constructing and arranging the parts, the pump has the action
hereinbefore explained. It will be understood that the weight of the moving
parts will vary with the depth of the well and the height to which the water has
to be lifted respectively.
We will now describe with reference to Figure 3 the mechanism which we
employ for facilitating the withdrawal of the foot or suction valve 6 Figure 1^ from
and its introduction into the working barrel c of the pump.
We make the central pin g of the valve 6 with a mushroom shaped head and
provide the said valve with inclined wing guides 92 extending into the working
barrel. To enable the withdrawal and introduction of the valve b to be effected
with ease and certainty, we use mechanism consisting of the hollow cylinder h of

page_text: less diameter than the working barrel c and of the jointed hook shaped clips i, i
carried by the said hollow cylinder. On the top of the cylinder h is a cross bar or
lifting pinto which a chain or rope may be attached for lifting or lowering the
mechanism. Within the cylinder h and bearing on the long arms, of the
jointed clips i, i is a loose weight & with an internal conical end. The tendency of
the clips i, by force of gravity, when not acted upon by the loose weight k,
is to take the closed position represented. Thus, by lowering the cylinder h and
its clips into the well, without the weight k, to the foot valve b (the bucket and
its rods and ram having been previously withdrawn) the clips i, i coming in contact
with the mushroom shaped head of the pin g will be first forced open and after
passing the rim of the said head the said clips will close under the said rim as
represented. The valve 6 can now be lifted from the working barrel through the
operation of the chain or rope attached to the cross bar or pin l. To remove the
apparatus from the suction valve b after the latter has been lowered onto its seat,
the weight kis employed with the said apparatus. In this case immediately the
valve 6 has been lowered so as to rest on its seat the further descent of the
cylinder causes the conical end of the weight k to act on the extremities 2, 12 of
the arms of the clips i, i and the latter are opened and the valve liberated. The
lowering mechanism is then removed leaving the valve 6 in its place in the working
barrel.
Figure 4 represents in elevation, partly in vertical section, a well pumping engine
constructed according to this invention in which the direct acting motor of the
pumping engine hereinbefore described is supplemented by a crank, its connection
and fly wheel. The auxiliary or balancing cylinder is the same as that herein-
before described and illustrated in Figure 1 and the parts are marked with the
same letters of reference but the piston rod of the piston in the cylinder is
coupled by the connecting rod p³ to the crank p the latter being situated on the
driven fly wheel shaft p. In other respects the arrangement Figure 4 is the same
as that herein before described and illustrated in Figures 1, 2 and 3.
Figure 5 represents in section a vertical single direct acting ram pump constructed
according to this invention driven by a direct double acting, cylinder and balance
cylinder proportioned to half the load. In this arrangement the steam is above
the piston and the atmosphere or exhaust is open to the underside of the said
piston as the excess load is on the downstroke instead of the up stroke, the bottom
of the balancing cylinder a being put in communication with the exhaust and the
top of the cylinder above the piston y2 being put in communication with the
steam pipe m. When in operation the power cylinder when making a down
stroke will effect half the load on the ram, the other half load being effected by
the balance cylinder a² and when making the upstroke the power piston y will work
in opposition to the balance piston y. The suction pipe in this arrangement is
marked and the delivery pipe f³.
Figure 6 represents in side elevation and Figure 7 in plan, partly in longitudinal
section, a fly wheel single acting ram boiler feed pump constructed according to
this invention. In this arrangement on the return stroke of the ram the main
piston y acts in opposition to the trunk piston y² and thus equalises the load in
both directions and thereby attains more equable motion combined with slow speed.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed we declare that we claim
as the said invention of "Improvements in pumping engines":-
First. The combination with a direct action driving or motor cylinder, or with a
driven crank shaft and its connections, of an auxiliary or balancing cylinder in.
which steam (compressed air or the like) acts only on the underside of the piston,
the upper side of the piston being open to the atmosphere or the reverse; by which
combination the moving parts of the pump and half the load are balanced or
suspended thereby equalising the force of the driving or motor cylinder, or its
equivalent, in both directions the several parts being constructed, arranged and

page_text: acting substantially as hereinbefore described and illustrated in Figures 1, 14, 2, 4
and 5 of the accompanying drawings.
Secondly. The modification of parts for the same object herein before described
and illustrated in Figures 6 and 7 of the accompanying drawings the said modifi-
cation consisting in making the main or motor piston on the return stroke of the
ram act in opposition to the trunk or auxiliary piston for the purpose of equalising
the load in both directions substantially as described and illustrated.
Dated the Camanah dan
11007
W. T. WHITEMAN,
Agent for the Applicants.