Improvements in Means for Lubricating Pumps used in connection with Ice-making and Refrigerating Apparatus.
Year: 1898

page_text: Date of Application, 10th Nov., 1898
Complete Specification Left, 9th Aug., 1899-Accepted, 4th Nov., 1899
Improvements in Means for Lubricating Pumps used in connection
with Ice-making and Refrigerating Apparatus.
We, ANKER EMIL ADOLPH BIRK and LAURITS MARTIN JUSTESEN, both of
46, Gammelstrand, Copenhagen, in the Kingdom of Denmark, Engineers, do
hereby declare the nature of this invention to be as follows:-
The object of this invention is to produce improved means for lubricating
pumps used in connection with ice-making and refrigerating apparatus.
The compressor or pump used in connection with such apparatus is a double
acting suction and pressure pump, connected with a suction-and a pressure-
tube, in which the oil or lubricating material contained in the cooling agent is
collected.
In lubricating apparatus hitherto employed for such compressors or pumps the
disadvantage has existed that the piston rod of the pump frequently has not been
sufficiently lubricated because the oil could not run down the oil filter to the
stuffing box of the piston rod as ammonia (or some other cooling agent) was
pressing forward from the opposite direction and thus forcing back the oil.
This disadvantage is obviated by the present invention, in which there is such
an arrangement that the oil eliminated from the pressure tube is forced to run
through the stuffing box before passing to the suction tube, or to an enlarged
part or chamber arranged therein, which can be refilled with the overflowing
oil. In this way, the stuffing box can always be filled with oil, and the piston
rod be cooled, if this should become heated."
In the accompanying drawing:-
Fig. 1 is a front view of the lubricating apparatus.
Fig. 2 a side view of the same, with the stuffing box and part of the compressor
in section.
Fig. 3 a section of the oil reservoir in the suction tube.
A is the piston rod, B the compressor, b the stuffing box of the piston rod,
a the pressure tube with the enclosed oil reservoir d' of the compressor, and c the
suction tube of the compressor with the enclosed oil reservoir d.
The oil-reservoirs d and d¹ are exactly alike, with the exception that in the
upper part of the oil reservoir d (see Fig. 3) a sieve or filter is arranged, which
is unnecessary in the pressure tube of the oil reservoir d'
In the interior of the stuffing box runs a pipe e coming from the pressure tube.
This pipe starts, in the case given as an example, from the bottom of the oil
reservoir and the opening g therein (see Fig. 3) and by means of it the eliminated
From the suction
oil in the pressure tube is conveyed to the stuffing boxes.
tube c of the compressor, or from the openings g in the bottom of this chamber
or oil-reservoir d, a pipe is laid to the interior of the stuffing box b, so that
there is the certainty of oil being conveyed to the stuffing box at all times, either
from the pressure tube or the suction tube.
The oil-reservoir d or dis of the form represented in Fig. 3 whereby the

page_text: cooling agent flowing from above in the direction of the arrow is forced to alter
its course, in order to pass below the bell h into the tubes . The result of
this is that any particles of oil which may be carried along with it, in consequence
of their weight, are separated at the lower end of the bell and drop from there
to the bottom of the oil chamber, in order to be conveyed thence through the
openings g to the stuffing box.
In the oil reservoir d of the suction tube, as illustrated, a sieves (see Fig. 3)
can be arranged, so as to prevent any impurities from entering the stuffing box
with the lubricating material.
1
Improvements in Means for Lubricating Pumps used in connection
with Ice-making and Refrigerating Apparatus.
We, ANKER EMIL ADOLPH BIRK and LAURITS MARTIN JUSTESEN, both of
46, Gammelstrand, Copenhagen, in the Kingdom of Denmark, Engineers, 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 follow-
ing statement:-
The object of this invention is to produce improved means for lubricating
pumps used in connection with ice-making and refrigerating apparatus.
The compressor or pump used in connection with such apparatus is a double
acting suction--and pressure pump, connected with a suction-and a pressure
tube, in which the oil or lubricating material contained in the cooling agent is
collected.
In lubricating apparatus hitherto employed for such compressors or pumps the
disadvantage has existed that the piston rod of the pump frequently has not been
sufficiently lubricated because the oil could not run down the oil filter to the
stuffing box of the piston rod as ammonia (or some other cooling agent) was
pressing forward from the opposite direction and thus forcing back the oil.
This disadvantage is obviated by the present invention, in which there is such
an arrangement that the oil eliminated from the pressure tube is forced to run
through the stuffing box before passing to the suction tube, or to an enlarged
part or chamber arranged therein, which can be refilled with the overflowing
oil. In this way, the stuffing box can always be filled with oil, and the piston
rod be cooled, if this should become heated."
In the drawing filed with the Provisional Specification:
Fig. 1 is a front view of the lubricating apparatus.
Fig. 2 is a side view of the same, with the stuffing box and part of the compressor
in section.
Fig. 3 is a section of the oil reservoir in the suction tube.
A is the piston rod, B the compressor, & the stuffing box of the piston rod,
a the pressure tube with the enclosed oil reservoir d¹ of the compressor, and c the
suction tube of the compressor with the enclosed oil reservoir d.
The oil-reservoirs d and d¹ are exactly alike, with the exception that in the
upper part of the oil reservoir d (see Fig. 3) a sieve or filter is arranged, which
is unnecessary in the pressure tube of the oil reservoir d'.
In the interior of the stuffing box runs a pipe e coming from the pressure tube.
This pipe starts, in the case given as an example, from the bottom of the oil

page_text: reservoir and the opening g therein (see Fig. 3) and by means of it the eliminated
oil in the pressure tube is conveyed to the stuffing boxes. From the suction
tube c of the compressor, or from the openings g in the bottom of this chamber
or oil-reservoir d, a pipe f is laid to the interior of the stuffing box b, so that
there is the certainty of oil being conveyed to the stuffing box at all times, either
from the pressure tube or the suction tube.
The oil reservoirs d and d¹ are both of the form represented in Fig. 3. In
the oil reservoir d the cooling agent flows from above in the direction of the arrow
and is forced to alter its course, as shown by the curved arrow in order to pass
below the bell h into the tubes i. In the oil reservoir d' the cooling agent flows
in the opposite direction. The result of this is that any particles of oil which
may be carried along with it, in consequence of their weight, are separated at
the lower end of the bell and drop from there to the bottom of the oil chamber,
in order to be conveyed thence through the openings g to the stuffing box.
In the oil reservoir d of the suction tube, as illustrated, a sieves (see Fig. 3)
can be arranged, so as to prevent any impurities from entering the stuffing box
with the lubricating material.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
we claim is:-
1. A lubricating arrangement for compression pumps of the kind referred to,
the distinguishing feature of which is that the stuffing box of the piston rod is
connected with the pressure tube and suction tube of the compressors and may
be so with the bottom of the oil chamber or reservoirs d and d enclosed therein,
by means of the pipes running into the interior of the stuffing box, so that there
is oil in the stuffing box at all times.
2. In the lubricating arrangement described under Claim 1, a contrivance
whereby the oil-chamber that may be enclosed in the pressure tube or suction
tube is so applied, that the cooling material is forced at once to alter its course
and thereby any particles of oil carried along therewith are eliminated, being
then collected in the bottom of the reservoir, whence they are conveyed to the
stuffing box.
3. In the lubricating arrangement described under Claim 1, a contrivance
whereby a sieve or filter is arranged in the oil reservoir, which prevents the sedi-
ment and other impurities from being carried to the stuffing box with the
eliminated oil.
Dated this 9th day of August 1800