IMPROVEMENTS IN APPARATUS FOR LUBRICATING GAS AND OTHER MOTOR ENGINES AND MACHINES
Year: 1884

page_text: PROVISIONAL
SPECIFICATION.
I, SAMUEL GRIFFIN of Kingston Iron Works Bath in the County of Somerset
Engineer do hereby declare the nature of my invention' for "IMPROVEMENTS IN
APPARATUS FOR LUBRICATING GAS AND OTHER MOTOR ENGINES AND MACHINES
to be as follows:―
+
13
My Invention relates to improvements in apparatus used for lubricating the
interior of the cylinders, slide valves and other parts of gas and other motor
engines and machines.
In gas motor engines more especially it has been usual to employ a mechanical
lubricator for the above named purposes, ie. a lubricator actuated by some part
of the external mechanism of tho engine itself, such lubricator being subject,
more or less to the following defects, viz, considerable wear and tear, compli-
cation, and waste of oil this latter defect arising in consequence of the feed being
constant in quantity whether the engine be working, heavy or light.
I propose to remedy these defects by constructing my improved lubricator in the
following manner. An oil cup or chamber having a stem or base containing a hole
or holes truly bored to receive one or more valves is or are attached to the cylinder,
or other part of the engine (advantageously the cylinder) in any convenient
manner.
If the interior of the cylinder only is to be lubricated only one valve will be
required but if the slide valve or other external working parts are to be lubricated
in addition, a second valve will be required.
These valves are of the type known as piston valves, having a projecting face or
seating at one end the cylindrical or piston portion of each valve being fitted
accurately to the before mentioned holes in the stem or base and the projecting
face ground to a seating formed at the mouth of the holes. Each of these holes is
in communication with the interior of the cylinder, by means of suitable passages
terminating underneath the valves.
The valvo for oiling the interior of the cylinder has a hole or passage entirely
through it from end to end the bottom end having a small valve fitted to it opening
downwards while the top end terminates in a small tube which rises above the oil

page_text: in the cup or chamber. Just underneath the projecting face or seating there is a
small hole through the side communicating with the before mentioned hole in the
interior of the valve.
The action is as follows. At every impulse in the cylinder the pressure lifts the
valve (all escape either through the tube which rises above the oil or through the
small hole in the side being prevented by means of the small valvo opening down-
wards which is now closed by the pressure), oil now enters the interior of the valve
through the small hole in the side. When the pressure in the cylinder is released
the valve drops on its seating thus preventing any further entrance of oil into the
interior of the valve while the oil already there passes through the before men-
tioned passage into the cylinder this latter operation being considerably assisted in
gas motor engines by the next charging stroke of the piston which tends to draw
the oil into the cylinder.
The valve for oiling the slide valve or any external parts of the engine bas
no holes in it, but simply a small chase or groove, underneath the projecting
face or seating which extends for a small distance parallel with the axis of the
valve. This chase or groove communicates with a hole in the side of the base
For stem through which the oil is conveyed by means of a tube to the external
part to be lubricated. At every impulse this-valva. being lifted-by-the-pressure_a
small quantity of oil passes through the chase or groove into the-before-mentioned
tube.
-
· The quantity of oil delivered is regulated by a screw or any other suitable
means by which-the-rise-or-lift of the valves can be adjusted. If necessary a light
-spring_may_bo_used to. force the valves rapidly-back on their seatings after each
lift.

page_text: 1, SAMUEL GRIFFIN of Kingston Iron Works Bath in the County of Somerset
Engineer do hereby declare the nature of my invention for "IMPROVEMENTS IN
APPARATUS FOR LUBRICATING-GAS-AND-OTHER MOTOR ENGINES AND 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 improvements in apparatus used for lubricating the
interior of the cylinders slide valves and other parts of gas and other motor engines
and machines.
In gas motor engines more especially it has been usual to employ a mechanical
lubricator for the above named purposes, i.e. a lubricator actuated-by-some part of._
-the-external-mechanism of the engine itself such lubricator being subject more or
less to the following defects, viz. considerable wear and tear, complication-and-
waste of oil, this latter defect arising in consequence of the feed being constant in
quantity whether the engine bo working heavy or light.
I propose to remedy theso defects by constructing my improved lubricator in the
following manner. An oil cup or chamber having a stem or base containing a hole
or holes truly bored to receive one or more valves is or are attached to the cylinder
or other part of the engine (advantageously the cylinder) in any convenient
manner.
If the interior of the cylinder only is to be lubricated only one valve will be
required but if the slide valve or other external working parts are to be lubricated
in addition a second valve will be required.
These valves are of the type known as piston valves having a projecting face or
seating at one end, the cylindrical or piston portion of each valve being fitted
accurately to the before mentioned holes in the stem or base and the projecting face
ground to a seating formed at the mouth of the holes. Each of these holes is in
communication with the interior of the cylinder by means of suitable passages
terminating underneath the valves.
The valvo for oiling the interior of the cylinder has a hole or passage entirely
through it from end to end the bottom end having a small valve fitted to it opening
downwards while the top end terminates in a small tube which rises above the oil
in the cup or chamber. Just underneath the projecting face or seating there is a
small hole through the side communicating with the before mentioned hole in the
interior of the valve,
The action is as follows:-At every impulse in the cylinder the pressure lifts the
valve (all escape either through the tube which rises above the oil or through the
small hole in the side being prevented by means of the small valve opening down-
wards which is now closed by pressure) oil now enters the interior of the valve
through the small hole in the side. When the pressure in the cylinder is released
the valve drops on its seating thus preventing any further entrance of oil into the

page_text: interior of the valve while the oil already thoro passes through the before mentioned
passage into the cylinder this latter operation being considerably assisted in gas
motor engines by the next charging stroke of the piston which tends to draw the
oil into the cylinder.
The valve for oiling the slide valve or any external parts of the engine has no
holes in it but simply a small chase or groove underneath the projecting face or
seating which extends for a small distance parallel with the axis of the valve.
This chase or groove communicates with a holo in the side of the base or stem
through which the oil is conveyed by means of a tube to the external part to be
lubricated. At every impulso this valve being lifted by the pressure a small
quantity of oil passes through the chase or groovo into the before mentioned tube.
The quantity of oil delivered is regulated by a scrow or any other suitable means
by which the rise or lift of the valves can be adjusted. If necessary a light spring
may be used to force the valves rapidly back on their seatings after each lift.
And in order that my invention may be clearly understood and readily carried
into practice I will proceed to describe the same with reference to the drawings
hereto annexed,
Figure 1 front elevation of lubricator.
Figure 2 vertical section showing arrangement of valves and passages.
Figure 3 enlarged "section of end of valve e showing arrangement of small valve.
Figure 4 plan of cover.
The same letters of reference indicate the same parts in all the drawings.
a is the oil chamber of the lubricator which is closed by a cap or cover b held in
position by the nuts c. c. dd are two screws which adjust the lift of the valves s
and these screws being fixed in any suitable position by the plate and screw g.the
small valve h closes the end of the valve e and is prevented from dropping out by
the pin which passes loosely through it. are small openings through which the
oil can pass when the valve h opens. e¹ is a passage running entirely through the
valve e. small channel and opening through which oil can enter the interior of
the valve e when it rises. j channel through which oil can flow into the opening k
when the valve frises. 17 openings or holes leading from the interior of the
cylinder to the bottom of the valves e and f. mm spiral springs for forcing tho
valves rapidly and firmly back on their seatings after being lifted. n nut and
plate against which the springs abut. o space to contain the oil. p p openings
covered with glass through which the height of the oil can be readily seen.
9. q. seatings at ends of valves e and f.
The mode of operation is as follows:-
At every power stroke of the piston pressure from the interior of the cylinder
passes through the openings l. l. underneath the valves e and f lifting them to any
convenient height determined by the screws d d; in the case of the valvo f the oil
will now pass through the small channel j into the opening k and thence by a tube
to any external part of the engine to be oiled: at the same time it will also pass
through the channel and opening i into the interior of the valve e and fall to the
bottom against the small valve h (which is now closed by the before mentioned
pressure from the cylinder) thus preventing any escape of pressure through the
interior of the valve e.
Immediately on the pressure from the cylinder being released by the exhaust,
the valves e and f drop on their seatings thus preventing any further passage of
oil until the next impulse or power stroke in the cylinder; simultaneously however
with the drop of the valves e and f on their seatings the small valve h at the
bottom of the valve e opens downwards thus allowing the oil which previously
entered the interior of the valve e to pass through the opening into the interior of
the cylinder. This latter operation being greatly assisted in gas motor engines by

page_text: the next charging stroke of the piston by means of which a small quantity of air
is driven through the interior of the valve e into the cylinder taking the oil
with it.
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
First. The general arrangement of lubricator for gas or other motor engines and
machines in which one or more piston valves having projecting faces or seatings at
one end are used; these valves being actuated by the pressure from the cylinder
and so arranged that no portion of the pressure can escape through them either
into the atmosphere or into the oil contained in the lubricator substantially as
described and shewn in the drawings hereto annexed.
Second. The arrangement of piston valvo e for oiling the interior of cylinder
having a passago longitudinally through it, one end of which is closed by a small
valve opening towards the cylinder, the other end being open to the atmosphere
oil being admitted into this passage only when the valve is raised substantially as
described and shown in the drawings hereto annexed.
Third. The arrangement of piston valve for oiling the exterior parts of a gas
or other motor engine such valve having a longitudinal groove or grooves under-
neath its seating through which oil can flow when it is raised substantially in the
manner hereinbefore described and shown in the drawings hereto annexed.
Dated this 22nd day of May 1886.
TONGUE & BIRKBECK,
34, Southampton Buildings, Chancery Lane, W.C.,
Agents for the Patenteo.