Improvements in Piston Lubricators.
Year: 1899

page_text: Date of Application, 9th Oct., 1899-Accepted, 23rd Dec., 1899
COMPLETE SPECIFICATION.
Improvements in Piston Lubricators.
*
I, ALEXANDER WINTON, of 37, Bolton Place, in the City of Cleveland, in the
County of Cuyahoga and State of Ohio, United States of America, Inventor and
Mechanical Engineer, do hereby declare the nature of this invention, and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement:-
My invention relates to improvements in piston lubricators, and pertains to a
lubricator which is especially adapted for use in connection with an explosive
engine.
The object of my invention is to provide a mechanism actuated by the pressure
of the gas in the explosive cylinder or chamber when the piston has reached the
outward limit of its stroke, whereby a pre-determined quantity of oil is fed to.
the piston at each stroke thereof.
The accompanying drawing represents a longitudinal sectional view of an
engine with my invention applied thereto.
Referring to the drawing, a indicates the cylinder the piston, c the pitman,
and d the crank shaft, all of which may be of the usual construction. Sur-
rounding the cylinder a is the usual water jacket e and formed in the outer
surface of the cylinder a and passing through the water jacket is a cavity or
recess which receives the nipple g of an oil cup or chamber A. The nipple y
is provided with a longitudinal bore or opening which is in communication at
its inner end with the inner end of the cavity or recess f and at its upper end is in
communication with an upwardly projecting tube i extending within the cup or
chamber A. Situated within this tube and normally registering in the upper end
of the bore or opening of the nipple, is a ball valve m, the upper end of the said
bore being constructed to form a seat for the said ball, and the tube i being con-
structed at its lower portion sufficiently large to permit the upward movement there-
in of the said ball valve. The upper end of this tube i is screw threaded to receive a
screw threaded rod which will limit the upward movement of the ball within
the tube for a purpose to be hereinafter explained, and by which the amount of
upward movement of the ball can be regulated. A lock nut p surrounds the
upper projecting end of the screw threaded rod n and forms a locking nipple
therefor.
Extended within the oil cup or chamber A and having its open upper end
adjacent the upper end of the cup or chamber is a tube F, the lower end of which
communicates with the nipple bore or opening at a point below the ball valve.
The cavity communicates at its lower end with the interior of the cylinder a
through the medium of an opening r, which opening is always covered by the
engine piston b. Passing through the cylinder and communicating therewith
at a point between the opening and the explosion end of the cylinder a is a
passage E which has its outer end also in communication with the lower end of
the cavity f and consequently in communication with the nipple bore h. It will

page_text: be noted that the lower end of the nipple does not extend to the lower end of
the cavity which forms a chamber s at a point below the end of the nipple and
with this chamber the upper ends of the passages r and E communicate.
The chamber or cup A is closed means of a cover G for the purpose of making
it practically air tight.
In operation a pre-determined quantity of oil is fed through the passage-ways B
made in the lower end of the tube within the said nipple bore and thence to the
engine piston through the opening or passage-way r.
This operation is accomplished by the pressure of the gas within the explosion
chamber when the piston has about reached the outer limit of its stroke as illus-
trated in the accompanying drawing which uncovers the inner end of the
passage and the pressure of the gases within the chamber passes through the
said passage E to the nipple bore h lifting the ball valve and also passing through
the tube to cause an equilibrium upon the oil and thus cause it to pass through
the openings B into the nipple bore while the ball is elevated, so that as soon as
the passage-way E is closed by the inward movement of the piston the ball valve
descends and closes the upper end of the nipple bore h and prevents further
passage of oil from the cup or chamber A, but permits that portion of the oil
which has passed within the nipple bore to feed to the piston b. In this way
each time the passage E is uncovered by the outward movement of the piston
the pressure of the gases automatically causes the lifting of the ball valve and
an equilibrium of the pressure of the oil within the cup and thereby automatic-
ally feeding a pre-determined quantity of oil to the piston at each movement
thereof, the amount of oil being fed being regulated by the amount of upward
movement given to the said ball valve as will be readily understood. This
upward movement is regulated as before stated by the adjustable member or
screw threaded rod n within the tube i.
This arrangement is found to be very effective in properly furnishing a
lubricant to the piston and to prevent an over-supply of oil thereto.
Having now particularly described and ascertained the nature of the said
invention, and in what manner the same is to be performed, I declare that I
claim is:
1st. A lubricating device comprising a cylinder, an oil cup or chamber. an oil
passage-way in communication at its upper end with the lower portion of the
chamber and at its lower end with the engine cylinder, a valve adapted to open
and close the upper end of said passage-way, a pressure passage way having its
upper end in communication with the upper portion of the chamber, and its
lower end in communication with the oil passage way at a point below the said
valve, and a passage-way E in communication at one end with the cylinder at
a point in advance of the oil passage way and in communication at its upper
end with the oil passage-way, substantially as described.
2nd. A lubricating device comprising a cylinder. an oil cup or chamber, an
oil passage-way in communication at its upper end with the lower portion of
the chamber and at its lower end with the engine cylinder, a valve adapted to
close and open the upper end of said passage-way, a tube having its upper end in
communication with the upper portion of the chamber, its lower end in .com-
munication with said passage-way, and a passage E in communication at one end
with the cylinder at a point in advance of the oil passage-way and in com-
munication at its upper end with the oil passage way, substantially as described.
3rd. A lubricating device comprising a cylinder having an oil passage-way,
through one side thereof, and at a point about at the outward limit movement
of the piston, a piston therein, a closed oil chamber in communication with said
opening, a valve for said communication, a pipe having its upper end in com-
munication with the upper end of the oil chamber and at its lower end with the
said communication at a point below the said valve, and a passage-way in the
cylinder having its inner end in communication therewith at a point inside

page_text: of the outward limit of movement of the piston and its upper end in communica-
tion with said cylinder opening, the parts adapted to operate as described.
4th. A lubricating device comprising an engine cylinder, a piston therein, a
closed oil chamber, a communication between the said oil chamber and the
interior of the cylinder at a point outside of the outward limit of movement of
the piston, a passage E having its inner end in communication with the cylinder
at a point inside of the outward limit of the said piston and its upper end in
communication with said oil cup communication, a ball valve adapted to close
the upper end of said communication, and a vertically projecting tube within
the oil chamber and enclosing the said ball valve, substantially as described.
5th. A lubricating device comprising a cylinder, a piston therein, an oil cup
or chamber, a communication with the interior of the cylinder at a point outside
of the outward limit of movement of the said piston and with the interior of the
said oil cup or chamber, a passage-way having communication with the cylinder
at a point inside of the outward limit of movement of the piston and at its upper
end with the said communication, a ball valve adapted to close the upper end
of the said communication, a vertically disposed tube having oil passage ways,
and enclosing the said ball valve, and a vertically adjustable member within
the tube for regulating the upward movement of the ball valve, and a pipe F
having communication at its upper end with the upper portion of the oil chamber
or cup and at its lower end with the communication at a point below the ball
valve, substantially as described.
6th. A piston lubricator, substantially as herein shown and described.
F. WISE HOWORTH,
46, Lincoln's Inn Fields, London, W.C., Agent for the Applicant.