IMPROVEMENTS IN LUBRICATORS APPLICABLE FOR THE CYLINDERS OF STEAM ENGINES
Year: 1885

page_text: I, WILLIAM PHILLIPS THOMPSON, Fel. Inst. P.A. of the Agency for Foreign
Patent Solicitors, 6 Lord Street, Liverpool, in the County of Lancaster, and
323, High Holborn, in the County of Middlesex, Civil Engineer, do hereby declare
the nature of the said invention for "IMPROVEMENTS IN LUBRICATORS APPLICABLE
FOR THE CYLINDERS OF STEAM ENGINES" (a communication from abroad by
Robert Wrigley, Rosa, North Western Provinces, British East Indies, Engineer) to
be as follows:-
The object of this invention is to provide a simple and easily constructed
apparatus for lubricating the cylinders of steam engines which will work auto-
matically by the action of the steam in the cylinder upon a valve or valves.
It consists of a cup or reservoir for the lubricant fitted with two valves at or
near the bottom so connected and working together that one will be open when
the other is closed with a space or passage between them for the lubricant, and
which are alternately opened and closed as the pressure of the steam or the vacuum
or partial vacuum formed in the cylinder acts upon them.
In carrying out the invention a cup or reservoir into which the lubricant is
placed is formed with two valve seats at or near the bottom fitted with valves.
One valve is placed over or above the other with a connecting space or passage
between, they control the exit of the lubricant from the cup so that when either is
shut the flow of the lubricant is stopped, and when the bottom one is closed the
passage of steam from the cylinder into this cup or reservoir is prevented. These
valves may be of any convenient or suitable shape such as flap valves circular
valves, ball valves or conical valves, but in practice the latter will probably be
found most convenient. A short spindle proportionate to the distance of the valve
seats apart connects the two valves together and keeps them at a fixed distance
apart, allowing only one of the valves to be on its seat at a time. This spindle
Price 1

page_text: may be screwed into the valves and by inserting the ends of it further into the
body of either valve, or withdrawing it therefrom the distance between the two
valves may be regulated and adjusted. A spindle or rod may extend from one
valve through the top of the oil cup or reservoir or through other guide to steady
the action of the valves.
When the steam enters the cylinder it presses one valve up to its seat preventing
the upward passage of steam and opens the other valve when the oil or tallow
finds its way into the space between the valves, when the cylinder is exhausting
the valves drop the upper valve closing and the lower one opening and admitting
the lubricant into the cylinder.

page_text: Steam Engines.
I, WILLIAM PHILLIPS THOMPSON, Fel. Inst. P.A. of the Agency for Foreign
Patent Solicitors, 6 Lord Street Liverpool in the county of Lancaster, and
323 High Holborn in the county of Middlesex, Civil Engineer, do hereby declare
the nature of this invention (a communication from abroad by Robert Wrigley,
Rosa, North Western Provinces, British East Indies, Engineer) and in what manner
the same is to be performed, to be particularly described and ascertained in and by
the following statement:-
The object of this invention is to provide a simple and easily constructed
apparatus for lubricating the cylinders of steam engines which will work auto-
matically by the action of the steam in the cylinder upon a valve or valves.
It is best described by aid of the accompanying drawing in which Figure 1
shows a section, and Figure 2 an elevation of the lubricator.
It consists of a cup or reservoir for the lubricant fitted with two valves at or
near the bottom, so connected and working together that one will be open when
the other is closed with a space or passage between them for the lubricant, and
which are alternately opened and closed as the pressure of the steam or the vacuum
or partial vacuum formed in the cylinder acts upon them.
A is a cup or reservoir into which the lubricant is placed. This is formed with
two valve seats B and C at or near the bottom, fitted with valves D and E. One
valve B is placed over or above the other C with a connecting space or passage F
between. They control the exit of the lubricant from the cup A, so that when
either is shut, the flow of the lubricant is stopped, and when the bottom one is
closed the passage of steam from the cylinder into this cup or reservoir is
prevented. These valves may be of any convenient or suitable shape, such as flap
valves, circular valves, ball valves, or conical valves as shown but in practice the
latter will probably be found most convenient. A short spindle G proportionate to
the distance of the valve seats apart connects the two valves together, and keeps
them at a fixed distance apart, allowing only one of the valves to be on its seat at
a time. This spindle may be screwed into the valves, and by inserting the ends
of it further into the body of either valve, or withdrawing it therefrom, the
distance between the two valves may be regulated and adjusted. This spindle or
rod preferably extends above valve B, through the top of the oil cup or reservoir,
or through other guide to steady the action of the valves.
When the steam enters the cylinder it presses one valve C up to its seat, preventing
the upward passage of steam, and opens the valve B thereby allowing the oil or
tallow to find its way into the space between the valves. When the cylinder is
exhausting the valves drop, the upper valve closing, and the lower one opening
and admitting the lubricant into the cylinder.
In the drawings two mushroom valves only are shown, rigidly connected by a
screwed rod, but they might be arranged to simply abut on each other and other
forms of valves linked together could be used.

page_text: Having now particularly described and ascertained the nature of the said
Invention, and in what manner the same is to be performed, as communicated to
me by my foreign correspondent, I declare that what I claim is;
1. The improvement in lubricators applicable for steam cylinders which consists
in forming between the cup or reservoir and the cylinder a small chamber, but
separated from each of them by a valve and seat, the compound valve, or pair of
valves being so arranged, that as the passage from the cylinder or reservoir
respectively to said intermediate chamber is opened, by unbalanced pressure or
force on one side, the passage from the other is automatically closed, and vice
versa.
2nd The combination of the reservoir A, the valves B and C, arranged to act
synchronously central chamber F, and the passages between said chamber, on the
one hand, and the reservoir and cylinder on the other hand respectively controlled
by said valves respectively, substantially as described.