IMPROVE- MENTS IN REGULATING AUTOMATIC LUBRICATORS FOR STEAM CYLINDERS
Year: 1882

page_text: LETTERS PATENT to Walter Alfred Barlow of 6 St. Pauls Churchyard in the
City of London Patent Agent and Engineer for an invention of "IMPROVE-
MENTS IN REGULATING AUTOMATIC LUBRICATORS FOR STEAM CYLINDERS
A communication from abroad by Fritz Holtschmidt of Dusseldorf in the
German Empire
PROVISIONAL SPECIFICATION left by the said Walter Alfred Barlow at
the Office of the Commissioners of Patents on the 17th April 1882.
66
WALTER ALFRED BARLOW of 6 St Pauls Churchyard in the City of London
Patent Agent and Engineer IMPROVEMENTS IN REGULATING AUTOMATIC LUBRI-
CATORS FOR STEAM CYLINDERS A communication from abroad by Fritz
Holtschmidt of Dusseldorf in the German Empiro
12
This Invention relates to Improvements in regulating automatic lubricators for
steam cylinders. The oil cup is made with two holes ports or ducts in the base
thereof.
One of the openings is for escape of water and is fitted with a screw valve.
The other opening is for the conduct of the oil and is also fitted with a valve
and in this opening and projecting into the oil cup is secured a tube around which
tube or inside the same a second tube is screwed which can be raised or lowered as
required upon the fixed tube to regulate the flow of the oil.
The apparatus is screwed into a hole in the steam pipe cylinder or casing to be
lubricated with the valves closed and the cup filled with oil up to a side opening in
the fixed tube. The cap of the cup is closed and then the oil valve is opened.
The operation is as follows:-
From the steam pipe cylinder or casing rises the steam through the screwed tubes
into the empty space above the oil and there condenses to water
As water is specifically heavier than oil, the water will sink to the bottom and
the oil must rise and flow through the opening of the inner tube fixed as before
described into the steampipe opening and in the same proportion as the steam
condenses the oil must flow.
The lower the regulating tube is screwed the larger will the condensing space
become and the larger the condensing space is set, the more steam condenses and
the more oil must overflow
On the other hand the smaller the condensing space is made the less steam
condenses and consequently less oil will flow

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the snid Walter Alfred Barlow in the Great Seal Patent Office on the
17th October 1882.
WALTER ALFRED BARLOW, of 6 St Pauls Church Yard, in the City of London
Patent Agent and Engineer, "IMPROVEMENTS IN REGULATING AUTOMATIC
LUBRICATORS FOR STEAM CYLINDERS," a communication from abroad by Fritz
Holtschmidt of Dusseldorf in the German Empiro
This Invention relates to improvements in regulating automatic lubricators for
steam cylinders.
Among the known regulating lubricators there is only one in which the regulation
of the oil flow is on the principle of increasing or decreasing the condensing space,
that is the space above the oil within the cup.
The setting of this apparatus is here effected by one tube only, which is screwed
in the bottom of the apparatus, but in this construction the apparatus does not act
well and has the following disadvantages :
The tube can only be set low or lower to a very limited degree.
To strengthen the bed of this tube it must have at its lower end a double nut as
without it the same would stand very loose.
When it is required to set the condensing space larger or smaller the small tube
must be entirely taken out each time, to set first of all the double nut at the lower
end of the tube higher or lower.
The taking out of this tube is difficult and the replacing more so and when the
apparatus is once fixed and filled with the hot oil then the setting of it becomes
almost an impossibility during the motion of the engine.
All theso disadvantages disappear by the use of this invention wherein is
employed two tubes as shown in the sectional drawing annexed hereto; the
apparatus is constructed as follows:—
The oil cup A is made with two holes ports or ducts, one of these holes or
openings m is for escape of water and is fitted with a scrow valve f.
Tho other duct e is for the conduct of the oil and is also fitted with a valve g
and in the interior opening of this duct e and projecting into the oil cup is secured
a tube k around which Lubok or inside thereof a second tube i is screwed which
can be raised or lowered as required upon the fixed tube to regulate the flow of
the oil.
The apparatus is screwed into a hole in the steam pipe cylinder or casing to bo
lubricated at h with the valves fand g closed and the cup A filled with oil up to a
side opening in the fixed tubo i. The cap a of the cup is closed and then the oil
valve g is opened.
The operation is as follows:-
From the steam pipe cylinder or casing the steam rises through the screwed
tubos kand into the empty space b above the oil and there condenses to water
which being specifically heavier than the oil will sink to the bottom and the oil
risos and flows through the opening of the inner tube adjusted as before described
into the steam pipe duct c and in the same proportion as the steam condenses the
oil must flow.
The lower the regulating tube i is scrowed the larger will the condensing space ข
become and the larger the condensing space is set tho more steam condenses and the
inore oil must necessarily overflow.
On the other hand the smaller the condensing space is made the less steam
condenses and consequently less oil will flow.

page_text: The regulation of the condensing space b that is the increasing or decreasing of
space is easily effected by screwing tube i either up or down on or in tube k; in the
drawing shown screwed on.
As long therefore as the steam is not shut off by valve g the apparatus acts
continuously.
The lower tube is well soldered in the bottom of the apparatus at e and its
length should be about two thirds of the entire height inside the apparatus the
length of the upper tube i should be from its lower end to its opening at the side
also about two thirds of the whole inner height of the space of the apparatus the
neck b of the apparatus not being included.
If these tubes i and are so far screwed in or round each other that the side
opening with the inner upper space of the apparatus shuts off and therefore the
condensing space be small and only consists of the neck b then the two tubes are
still screwed around each other with half their length and cannot therefore
get loose.
The lower the tube i is screwed toward the bottom the tighter the tubes are held
and if the lower end of tube i reaches the bottom of the apparatus then the side
opening of the upper tube i reaches the upper end n of the lower tube .
In this case the condensing space is represented by one third of the inner space of
the whole apparatus A exclusive of the neck but if larger the condensing space will
perhaps never be required.
The regulation of the condensing space that is the raising or lowering of the
tube i and which is the main object of such an apparatus can be effected by my
system in a few seconds with a screw device very easily and during the motion of
the engine and even while the apparatus is filled with hot oil as the tube has not to
be removed each time.
Having now described the nature and particulars of the said Invention, I
claim-
The use of two tubes i and screwed one over the other for increasing or
decreasing the condensing space in steam regulator lubricators constructed and
operating as and for the purpose herein set forth and as shown by the illustration
on the accompanying drawing.
In witness whereof I the said Walter Alfred Barlow have hereunto set my
hand and seal this seventeenth day of October in the year of our Lord one
thousand eight hundred and eighty two.
WALTER A BARLOW (L.S.)