Improvements in Apparatus for Refrigerating or Producing and Utilizing Cold.
Year: 1887

page_text: PROVISIONAL DIBUITIGATION.
Improvements in Apparatus for Refrigerating or Producing and
Utilizing Cold.
[ ROBERT MATTHEWS of the firm of Goodfellow and Matthews of Hyde in the
County of Chester, Engineers, Millwrights, and Metal Founders do hereby declare
the nature of this Invention to be as follows:-
My Invention relates to the relative arrangement of the cylinders and parts of
refrigerating apparatus of the class wherein air is compressed and expanded, there
being a motor engine combined therewith as an integral part of the same machine.
According to our invention we employ a shaft with several cranks, to two of which
are respectively connected a piston rod common to a low pressure cylinder an air
compression cylinder and air expansion cylinder-The high pressure cylinder piston
rod is connected to a separate crank and may work the pumps at the back-The
arrangement may also be applied to triple expansion engines when the triple expansion
cylinders will be substituted for those mentioned-The engine may be an ordinary
tandem engine driving duplicate refrigerators one on each side, the pumps and
condensers being at the back where they are very accessible.
When economy of space is necessary the pumps may be worked from the cross
head by rods connected to levers in front of the crank shaft on each side of the
flywheels.
1 11
1
2
1 1000
J. H. JOHNSON & Co.,
47, Lincoln's Inn Fields, London, W.C.,
Agents for the said R. Matthews.

page_text: COMPLETE SPECIFICATION.
Improvements in Apparatus for Refrigerating or Producing and
Utilizing Cold.
I ROBERT MATTHEWS of the firm of Goodfellow and Matthews of Hyde in the
County of Chester Engineers, Millwrights and Metal Founders 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 :-
My Invention relates to the relative arrangement of the cylinders and parts of
refrigerating apparatus of the class wherein air is compressed and expanded and used
as the refrigerating apparatus there being a motor engine combined therewith as an
integral part of the same machine.
According to my Invention I employ a shaft with several cranks to two of which
are each respectively connected a piston rod (or piston rods coupled together) common
to a low pressure cylinder and an air compression and air expansion cylinder arranged
tandem with each other. The high pressure cylinder piston rod is connected to the
other crank, and may work the pumps at the back. In this arrangement. there are
two low pressure cylinders and one high pressure cylinder. The invention may also
be applied to triple expansion engines when the intermediate pressure cylinder and
lowest pressure cylinder will be substituted for the two low pressure cylinders herein-
before mentioned.
When economy of space is necessary the pumps may be worked from the cross
head by rods connected to levers in front of the crank shaft on each side of the fly
wheels.
Figure 1 is an elevation and Figure 2 is a plan shewing my Invention as used with
a compound engine with two expansions. I make the high pressure cylinder A in
the middle or between the two low pressure cylinders B B-which low pressure
cylinders receive their steam supply through the pipes 1, 1, from the exhaust of the
high pressure cylinder A. The low pressure cylinders B B exhaust through the
pipes 2, 2, into the condenser H which is evacuated by the air pumps I, I, through
the pipes 3, 3. The said cylinders B B have each a piston the rod of which is attached
or coupled to the same rod or rods as that or those to which are fixed the pistons for
the air compressing cylinders D D and the expansion cylinders G G that is to say
that on each side of the high pressure cylinder there is a low pressure cylinder an air
compressing cylinder and an air expansion cylinder all in line or tandem and with
their pistons all fixed to one rod or to lengths of rod coupled together. The air
compressed in the compression cylinders D is delivered through the pipes 4 into the
cooler E E E thence passing into the uptake pipe 5 and along the pipe 6 into the
super coolers F F and then into the expansion cylinders G G by the pipes 7 from
which the expanded air is exhaused for cooling or freezing purposes.
Figure 3 shows in plan the Invention applied in the case of a triple expansion
engine. A is the high pressure cylinder which exhausts its steam into the intermediate

page_text: cylinder B by the pipe 8 from which the steam is exhausted through the pipes 9 into
the third or final cylinder C which exhausts into the condenser H through the pipe 10
the refrigerator being otherwise arranged as hereinbefore described the cylinders B
and C taking the place of the cylinders B B of the first arrangement.
It will be obvious that if I place a stop valve on the branch pipe 11 on the
cylinder A (Figure 2) and if I also place a stop valve on the exhaust branch of the
cylinder A between that cylinder and the pipes 1, then by leading fresh steam from
the steam pipes into the branch 12, the refrigerator can be worked non-compound and
that by placing valves at 13, 13, each half can be so worked or each half can be worked
compound in conjunction by the high pressure cylinder A.
It will also be obvious that in the triple expansion arrangement (Figure 3) stop
valves and pipes can when required be so arranged as to work either half, separately
or both together or jointly with the high pressure cylinder A, so that in case of
emergency the cylinder A can be thrown out of action and steam be passed direct
into the cylinder B from the boiler and thus the engine will be worked as an ordinary
compound engine or either of the cylinders B or C can be cut out and the remaining
cylinder be worked separately or jointly with the cylinder A.
Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be performed I declare that what I
claim is :-
1st. In machines for refrigerating or producing and utilizing cold a separate high
pressure motor cylinder supplying two low pressure motor cylinders so that each half
of the machine may be worked separately the same being arranged substantially as
hereinbefore described with reference to Figures 1 and 2 of the accompanying
drawings.
2nd. In machines for refrigerating or producing and utilizing cold an arrangement
wherein there is used a motor on the triple expansion compound system so that each
half of the machine may be worked independently in case of emergency sub-
stantially as hereinbefore described with reference to Figure 3 of the accompanying
drawings.
3rd. In machines for refrigerating or producing and utilizing cold on either of the
plans herein before described and claimed the coupling up of the motor cylinders with
valves as hereinbefore described so as to allow of the separate working of part of the
machine when desired.
4th. In machines for refrigerating or producing and utilizing cold a high and two
lower pressure cylinders the lower pressure cylinders being each arranged tandem
with air compressing and air expanding cylinders substantially as hereinbefore
described.
5th. The machine arranged as and for the purpose herein before described and
illustrated in Figures 1 and 2 or in Figure 3 of the accompanying drawings.
Dated this 30th day of January 1888.
ROBERT MATTHEWS.