Improvements in Apparatus for Compressing and Accumulating Fluids.
Year: 1891

page_text: Date of Application, 18th Feb., 1891-Accepted, 27th June, 1891
COMPLETE SPECIFICATION.
Improvements in Apparatus for Compressing and Accumulating
Fluids.
I, GEORGE GOODLET, of Colebrook Street East Brunswick in the Colony of
Victoria, 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 :-
This invention relates to apparatus employed in and for the compression and
accumulation of fluids such as water and atmospheric air, and its object is to reduce
the power required for a given amount of compression.
I will describe my improvements with reference to the accompanying drawings
in each of the figures of which similar parts where they are represented, are indicated
by similar letters of reference.
Figures 1 and 2 are side elevations of the apparatus shewn at right angles to
one another;
Figure 3 is a section on line a a Figure 1;
Figure 4 a central section of the displacing and check valves;
Figure 5 a plan of the check valve and its friction clutch ;
Figure 6 a section shewing the U leather as arranged in the compensating cylinder
and through which the compensation piston works;
Figure 7 an enlarged section of the check valve;
Figure 8 a section of lower part of supply valve box shewing the supplementary
valve.
A and B (Figure 3) are two cylinders, one standing vertically above and.
disconnected from the other. The lower one, B, hereinafter called the compensating
cylinder, is secured to a bed plate B' upon which are standards or pillars C bearing
a strong plate C¹ carrying the upper cylinder A. hereinafter called the displacing
cylinder. This plate also forms the bottom of the accumulator D within which
the said displacing cylinder A is arranged as shewn in Figure 3. A is a trunk
piston in the cylinder A lifted by a rod A2 which passes out through a stuffing
box D' at the top of the accumulator and is connected to a cross head or bar A³
working in guides D². The bar A³ has secured to its ends the side connecting
rods A, the lower journals of which are centred on crank pins E in the fly wheels E
mounted on the shaft E' upon which is also mounted a pulley E³ to which the
necessary motion is imparted. The shaft E² runs in bearings carried by a bridge
supported by the aforesaid standards C. The lower end of the trunk piston within
the displacing cylinder A is perforated to form a valve seat A5 (Figure 4) above
which is an indiarubber or similar compensating valve F having a metal disc F¹
above it acted on by a coiled spring F2. This disc is secured to a rod F3 which
passes downwards through the inlet valve chest G and into the compensating
cylinder B, and secured upon it therein is the compensating piston B² (Figure 3)
working through an hydraulic U-leather B³. A branch G open to the source of
supply leads to the inlet valve chest G within which is fitted a perforated valve
seat G formed with a neck ring which is screwed into and forms the end of the
stuffing box G³, furnished with a gland G. G is an indiarubber valve upon the
valve seat G². G is a check valve having an air passage round its periphery at G7
and upon the top face of this valve there is an indiarubber ring or valve G to cover
air passages which are the spaces between the fingers or serrations G' cut or formed
in the valve face as shewn in Figure 5. This check valve is limited in its upward
ravel by four bosses formed at its periphery and having sunk holes in them to
receive screws G₁ which are screwed into the valve seat as shewn in Figure 7.
roo71

page_text: Gis a loose ring above the valve G³, the upward movement of the ring being
limited by the bottom of the cylinder A. The check valve is arranged upon the
rod and secured thereto by means of a friction clutch formed of two half
rings H H (see also Figure 5) into which are screwed the pins H H these pins
being in turn secured to and acted upon by the arms of a bow spring H2 which is
fastened at H³ to the valve Gº. Again, a branch pipe D³ (Figure 3) springing
from near the top of the accumulator D leads to within the compensating cylinder B
below its piston as shewn, and in this pipe, when the machine is used for air, a
column of water is retained sufficient to serve as a counterpoise against the weight
of the pistons, valves and rods. A. branch pipe B (Figure 2) leads from the top
of the compensating cylinder to a vacuum chamber to provide means for facilitating
the exhaust in the motor; while a branch pipe B' is open to the atmosphere; both
branches being furnished with suitable valves. J is a pressure gauge. J'a safety
valve and Ja stop valve for the supply pipe leading to an air or other motor or to
other apparatus.
For
When the apparatus constructed according to these improvements is employed
for driving a water motor, the liquid is drawn from the accumulator by the pipe
at and a supplementary air valve is arranged as shewn in Figure 8.
both air and water compressing, I work the displacing piston and valves in water
so that when used for air the air entering rises through it.
The apparatus shown in Figures 1, 2, and 3 of the drawing is drawn to a scale
of one twenty-fourth and has a displacing piston A 12 inches diameter by 6 inches
stroke, a compensating piston B2 10 and a half inches diameter by G inches stroke,
the supply pipe G being three and five eighths inches bore.
The operation of the machinery when compressing water to feed a water
motor is as follows-In the upstroke of the pistons the exhaust from the motor enters
the pipe G and passes through the check valve G until the upstroke is com-
pleted, then in the down stroke the U-leather B³ grips the compensating piston B²
sufficiently to open the compensating valve F against the spring F2 and thus the
valve does not exert any pressure on the liquid it is displacing and which passes
through the valve and into the accumulator until the full extent of the down stroke
is reached, when the foregoing operation is repeated. The check valve G in the
up stroke is lifted by the friction clutch H H to the height determined by the
screws G
The water motor driven by the apparatus should be arranged at
such a level that its exhaust will flow by gravity into the inlet pipe G. As before
stated the volume of water in the compensating pipe Da by acting on piston B
balances the moving parts.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I' declare that what I
claim is
1. The combination of parts forming an apparatus by means of which fluids inay
be compressed within an accumulator substantially as hereinbefore 'described and
as illustrated by the accompanying drawings.
2., The combination with the accumulator D of the displacing cylinder A, trunk
piston A', rod A², compensating valve F, spring F³, rod F³, check valve G,
casing G, compensating piston B in cylinder B, a U-leather, and the compensating
pipe D³ substantially as and for the purpose hereinbefore described and as shewn
in the accompanying drawings.
3. The combination with an accumulator or reservoir within which is a displacing
cylinder and a compensating valve having below it an inlet check valve, of a pipe
springing from near the top of the accumulator and leading to. below the piston in
a compensating cylinder, the rod of which operates the aforesaid compensating, and
check valves, substantially as and for the purposes described and as shewn' by the
accompanying drawings.
-
4. The combination and arrangement with a vertical displacing cylinder within

page_text: an accumulator, of a compensating cylinder, the piston of which works within a
U-leather, substantially as herein before described and as shewn by the accompanying
drawings.
5. The combination of the compensating cylinder having inlet and outlet valves
at its top end with a vacuum chamber substantially as and for the purposes
hereinbefore described.
6. The combination of the check valve G furnished with the friction clutch H H,
with the compensating piston rod F and the inlet valve box C, and either with or
without the supplementary valve J substantially as hereinbefore described and as
illustrated by the accompanying drawings.
Dated this 12th day of February A.D. 1891.
WILLIAM E. HEYS,
Agent for the Applicant.