Improvements in Aërating Machines.
Year: 1893

page_text: Date of Application, 27th Oot., 1893
Complete Specification Left, 27th July, 1894-Accepted, 15th Sept., 1994
PROVISIONAL SPECIFICATION.
Improvements in Aërating Machines.
We, ROBERT LUKE HOWARD, ELIOT HOWARD and ROBERT SAMUEL
LLOYD all of 90 and 92 Whitecross Street, St. Lukes, in the County of Middlesex,
Engineers and HENRY WILLIAM DOWELL, in the employ of the aforesaid, do
hereby declare the nature of this invention to be as follows:-
66
Our improvements relate to those machines in which the water or other liquid is
impregnated with carbonic acid gas by means of pumps which force the water and
the gas in due regulated proportions simultaneously. into a closed so-called
"cylinder" or condenser," our object being to produce machines of improved
construction whereby the operation is expedited and the working is rendered more
even or smooth, the machines being rendered more powerful, more suitable for
high pressure aëration, and capable of being advantageously driven at a somewhat
higher speed than heretofore usual or suitable.
By our improvements we arrange three or more pumps on the same frames as
carry the condenser, the cranks or crank pins being placed relatively at such angles
as to suitably divide the work done by the pumps during each revolution of the
crank shaft, thus if three pumps are used the cranks or crank pins are arranged
at 120° to each other, so that the pumping is practically continuous.
In one arrangement the condenser is supported on two strong vertical frames
either directly or by chairs attached to the frames or placed on a strong horizontal
girder frame or frames which connect the upper ends of the vertical frames. The
vertical frames and the girder frame or frames also carry the plummer blocks for
the crank shaft which operates the three or more pumps and which also in some
cases carries a cog wheel or pulley for communicating rotary motion to one or more
vanes or blades within the condenser commonly known as the agitator. The pumps
may be of usual approved construction with the piston rods or plungers working
out below. They may be placed between the two vertical frames and be worked
by a three-throw crank shaft, by preference supported in three or four plummer
blocks, one at each end and one or two intermediate. Or the pumps may be one
between the two vertical frames and one outside of each, the latter being then
worked from crank discs and pins, the discs being by preference arranged as forming
part of or attached to flywheels or pulleys.
When the pumps have their plungers or piston rods entering from below they
should be supported so high above the bed plate or ground as to allow of a cross-
head to work below the pump. In one arrangement all three pumps are carried on
a horizontal girder frame supported between the vertical frames. Each crosshead
is by two side rods connected to a crosshead above the pump which is worked by
connecting rod from the crank shaft, and the side rods are guided in their lower
portion and also continued up to work through guide brackets or frames of which
the middle one is fixed to the horizontal girder frame and the other two to the
vertical frames, or in any other suitable manner.
In another arrangement the pumps are each supported on a separate stool fixed
to the bedplate, the lower part of each stool forming a guide for a crosshead which
by side rods is attached to an upper crosshead worked by a connecting rod from
the crank shaft.
Or one pump is placed between the vertical frames either on a horizontal girder
frame or on a stool as just described, the other pumps being placed outside the
vertical frames and supported by brackets from the vertical frames or each on a
stool on the bedplate

page_text: In some of the aforesaid cases we may support the intermediate plummer block
or blocks on an additional vertical frame.
When more than three pumps are used we arrange them all between the two
vertical frames or two between and two outside, and in that case we may support
the crank shaft in the middle by a plummer block on an additional intermediate
vertical frame.
For the purpose of conveniently throwing one or more of the pumps out of work
the connecting rods may be made in parts, that is to say, with an inner rod fitting
accurately in a tubular sleeve and with suitable means such as a cotter for firmly
connecting the two; when the cotter is taken out the rod works up and down in
the sleeve without working the pump.
Dated this 27th day of October 1893.
JENSEN & SON,
77, Chancery Lane, London, W.C., Patent Agents.
"
COMPLETE SPECIFICATION.
Improvements in Aerating Machines.
We, ROBERT LUKE HOWARD, ELIOT HOWARD and ROBERT SAMUEL LLOYD,
all of 90 and 92 Whitecross Street, St. Lukes in the County of Middlesex,
Engineers, and HENRY WILLIAM DOWELL in the employ of the aforesaid 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:-
Our improvements relate to those machines in which the water or other liquid is
impregnated with carbonic acid gas by means of pumps which force the water and
the gas in due regulated proportions simultaneously into a closed, so-called
"cylinder" or "condenser," our object being to produce machines of improved
construction whereby the operation is expedited and the working is rendered more
even or smooth, the machines being rendered more powerful, more suitable for
high pressure aëration, and capable of being advantageously driven at a somewhat
higher speed than heretofore usual or suitable.
Hitherto it has been customary to place one pump and a condenser on the same
frames and for larger machines two pumps have been placed on the same frames
as the condenser, but it has been found that the process of pumping could only be
slow and a considerable shock took place at each stroke of the pump or pumps.
By our improvements we arrange three or more pumps on the same frames as
carry the condenser, the cranks or crank pins being placed relatively at such angles
as suitably to divide the work done by the pumps during each revolution of the
crank shaft, thus if three pumps are used the cranks or crank pins are arranged at
120° to each other, so that the pumping is practically continuous.
In one arrangement shewn in side view on the drawing the condenser P is
supported on two strong vertical frames E E either directly or by chairs attached
to the frames or as shewn by chairs QQ placed on a strong horizontal girder
frame N or frames which connect the vertical frames E near their upper ends the
said frames having also bearings for the agitator spindle Pl.
The vertical
frames E E and the girder frame or frames N also carry the plummer blocks M
for the crank shaft R which operates the three (or more) pumps A B C and which
also in some cases, and as here shewn, carries a cog wheel T (or pulley) for com-
municating rotary motion by the cogwheel U to one or more vanes or blades on
the agitator spindle P' within the condenser. The pumps may be of usual approved
construction with the piston rods or plungers working out below. They may be
placed between the two vertical frames E and be worked by a three throw crank
shaft R by preference supported in four (or three) plummer blocks M one at each
end in the frames E and two (or one) intermediate.

page_text: In the arrangement shewn all three pumps A B and C are carried on a horizontal
girder frame D supported between the vertical frames E E which are fixed to the
bed plate or frame O. Each crosshead F is by two side rods G connected to a
crosshead H above the pump which crosshead is worked by connecting rod I from
the crank shaft, and the side rods G are guided in their lower portion G' and also
continued up to work through guide brackets or frames of which the middle one is,
or as here shewn the two middle ones K K are, fixed to the horizontal girder frame
and the other two brackets L L are fixed to the vertical frames E E or in any
other suitable manner..
In another arrangement the pumps are each supported on a separate stool fixed
to the bedplate O, the lower part of each stoob forming a guide for a crosshead
such as F which by side rods such as G is attached to an upper crosshead such
as H worked by a connecting rod from the crank shaft.
Or one pump is placed between the vertical frames E E either on a horizontal
girder frame such as D or on a stool as just described, the other pumps being
placed outside the vertical frames E and supported by brackets from the vertical
frames or each on a stool on the bedplate. The outside pumps are then worked
from crank discs and pins, the discs being by preference arranged as forming part
of or attached to fly wheels or pulleys.
In some of the aforesaid cases we may support the intermediate plummer block
or blocks on an additional vertical frame between two outer frames such as E.
When more than three pumps are used, we arrange them all between the two
vertical frames or two between and two outside, and in that case we may support
the crank shaft in the middle by a plummer block on an additional intermediate
vertical frame.
For the purpose of conveniently throwing one or more of the pumps out of work
the connecting rods may be made in parts, that is to say, with an inner rod fitting
accurately in a tubular sleeve and with suitable means such as a cotter I¹ for firmly
connecting the two; when the cotter I¹ is taken out the sleeve works up and down
on the rod without working the pump.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
--
1. In aërating machines the application and use in combination with the con-
denser and the frames supporting the same of three or more pumps and a driving
shaft with three or more cranks at equidistant angles for the purpose of enabling
such machines to work more evenly, at a greater speed of rotation and at a higher
gas pressure than heretofore substantially as described.
2. The improved construction of aërating machine described with reference to
the drawing.
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