REFRIGERATING AND ICE MACHINES
Year: 1886

page_text: 2
I, WILLIAM HEAWORD WOOD, of 111 Liberty Street New York City, United
States of America, Mecanical Engineer do hereby declare the nature of my
invention for REFRIGERATING AND ICE MACHINES, 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 refrigerating or ice apparatuses, in which the refrigerating
effect is obtained by the evaporation of a volatile liquid; the vapors of which are
compressed by a pump into the condenser, and then liquified ready to be again
subjected to the process of evaporation.
The nature of my invention, while designed with special reference to the need
for the more perfect working of my refrigerating and ice machine; the manner in
which the same is or may be carried into practical effect, will be understood by
reference to United States Patent 321,669, granted to myself July 7th 1885,
and Patent for Great Britain N° 7824 granted June 27th 1885; and from the
following.
The nature of my improvement is fully illustrated on the accompanying Sheet
of Drawings, in which:
Fig. I is a sectional drawing of the vapor cock showing the vertical hole in
the centre of plug, for receiving the sealing fluid, to connect with the grooves
around the outside of the plug.
Fig. 2 is an end view of the vapor cock.
Fig. 3 is a sectional drawing of the distributing chamber.
Fig. 4 is a plan of same.
Fig. 5 is a sectional drawing of the receiver and separator.
Fig. 6-is a plan of same.
Fig. 7-is a sectional drawing of the diffusion valve.
Fig. 8 is a sectional drawing of valve box, cage and valves on top of com-
pression pump cylinder.
Like letters of reference indicate corresponding parts in all the figures.
First The part described as a diffusion valve-I have added therein a valve
and seating with a spring attached, so that injecting the liquid therein at a higher
pressure it will not interfere with the pressure in the refrigerator.
Prine 077

page_text: Second The part described as a receiver for the gas, for preventing the lubri-
cating fluid from being carried forward into the condensing coil, the upper part
of which I have made in sections with the trays cast in each section, and with
corrogations for directing the oil to the central cavity in which a pipe is fastened
and through which it can be carried to the lower part of the receiver.
.
Third To the condenser I have attached a distributing chamber, so that each
section of the condenser can have its equal quantity of gas after leaving the receiver
and at the same time it forms a trap for any oil that might by accident be carried
over from the receiver.
Fourth-The vapor cocks for operating one part of the machine. I have a vertical
hole in the centre of the plug for receiving a sealing fluid connecting with grooves,
outside of the plug, and the gas passes by the side of the plug, making the cock,
gas tight.
Fifth The valves after the equilibrium type for the suction side-I have one
nut with projections for working in grooves on each side of the cage to prevent its
working loose, and the pin for preventing the valve falling into the cylinder,
I have put through the piston part of the valve, and the cages for both suction
and pressure sides, I have put collars underneath the hexagon part, so that they
can be screwed down on to a rubber packing in a recess in the valve box. I have
also made the pressure valve cage in two parts for the purpose of enclosing the
spring without a thimble; in the top or hexagon part of the cage, there is a plug
screwed in same to prevent leakage from the piston part of the valve, and to make
it perfectly gas tight.
Sixth In the valve box, I have put recesses where the valve cages are screwed
therein to receive rubber packing.
In fig. 7-K designates the diffusion valve with the cone shaped orifice 9 in the
centre, the atomizing nozzle 12 is connected to the pipe L, the hand plate K³ is
for adjusting the nozzle, and the valve and seating K, with spring attached is to
prevent the pressure in the refrigerator, being altered when the liquid at a higher
pressure is being injected therein.
In figures 5 and 6, B is the receiver and separator in sections with the concaved
trays 1, and 3, cast therein with the cavities 11, 2, 33 and the ribs 33, on each
section, radiating to the centre, in which the holes 19 are drilled, the ribs forming
corrugations in which the oil passing the traps is directed towards the central
cavities 11, 22 and 3, wherein the pipe B³, is fastened, which fits into each cavity
having grooves B6 and B7, cut or filed in same to let the oil pass through the pipe
from one cavity to the other, until the lower section B₁ is reached, wherein the oil
will remain until drawn of for reusing through the pipe 17-The inlet pipe 18 fits
through the holes in hubs, B, B and B in the trays of each section, so that all the
gas and oil is compelled to be delivered by the pumps into the lower part of the
receiver and separator B', the cone 16, facing towards the bottom of receiver is
for preventing the oil being lifted by the action of the gas, and is angled from the
straight face of the flange of bottom of the receiver and separator B¹ and the gas
leaves after passing through the holes in the concaved trays by the outlet pipe 34
to the distributing chamber.
In fig. 3 and 4 C is the distributing chamber designed for receiving the gas
after leaving the receiver and separator, the inlet pipe C³, projecting some distance
through the bottom of distributing chamber, and on the top of which is fitted a
double cone C*, so that any oil by accident passing along with the gas, will be
directed towards the bottom of the chamber by inclination of the cone, and the
flange C looking towards the bottom, angling from the flange of C is to prevent
any oil being lifted by the action of the gas, and following underneath the cover
in which are fastened the separate outlet pipes C6, C7, and C by which the gas is
admitted to each section of the condenser-The pipe C is for drawing off any oil
that might have been carried over, and it answers for a test pipe to see if the
receiver and separator is working efficiently.-In fig. 8-The valve cages are
marked 3, and at 4 they are threaded for screwing into the valve box; at 4¹ the

page_text: collars are formed for holding down the rubber or other packing 48 for making a
gas tight joint, and at the top part of the cage the steel pin 36¹ is fitted to prevent.
the valve from falling into the cylinder, and the nut 37 from working loose. The
nut 37 with the projections is to work in the grooves 38 at each side of the cage 3
instead of nut and lock nut. The pressure valve cages is threaded at 39 for
screwing together for inclosing the spring without the thimble, and at the top
part, it is threaded for the plug 40 which is screwed therein, to prevent leakage
from the piston part of the valve Y¹, the valve box A¹ is recessed at 4° for receiving
the rubber packing, when the valve cages are screwed into the valve box-In fig.
and 2, V designates the vapor cock with plug 33; the vertical hole 32 is for filling
in lubricating fluid, and is made in the centre of the plug, and is connected with
the grooves 33B, round the plug, forming a seat on the upper and lower part of the
plug, at the same time, lubricating the plug and making it gas tight, the gas is
allowed to pass round one half of the plug through the grooves 34³.
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:
1°-In combination with the diffusion valve chamber K, the valve and seat K'
with spring, substantially as for the purpose described and set forth.
2°-In combination with a receiver and separator for a refrigerating machine,
the sections B, with the pipes Bo, substantially as described for purpose set forth.
3°-In combination with a refrigerating machine, the distributing chamber C³,
with the flange C³, double cone C, the pipe C, the cover for the gas outlet
pipes C, C7, C, substantially as described for the purpose set forth.
4°-In combination with a compression pump, valves and cages, the collars 4'
the steel pin 36¹, the nut with projection 37 and grooves 38, the threaded parts
39 & 40, substancially as described for the purpose set forth.
Claim 5 In combination with a vapor cock for operating parts of the machine,
the vertical hole 32, connecting holes 324, and the grooves 33B, with the half
groove 34B forming the passage for the gas, substancially as for the purpose
described and set forth.
Claim 6-In combination with a compression pump valve box, the recesses 42,
encircling the threaded part for receiving the cages, substancially as for the purpose
described.
In witness whereof, I, the said William Heaword Wood, have herewith set my
hand and seal this Thirteenth day of July One thousand eight hundred
Witness,
J. M. A. HOWARD,
111, Liberty Street, N.Y.
WILLIAM HEAWORD WOOD.