Improved Means for Lubricating a Bearing of the Connecting Rod in Gas Engines.
Year: 1898

page_text: Improved Means for Lubricating a Bearing of the Connecting Rod
in Gas Engines.
We, HENRY NIELD BICKERTON and WILLIAM WOOD, both of Wellington Works,
Ashton-under-Lyne, Engineers, do hereby declare the nature of this invention to be
as follows:—
This invention relates to the bearing of that end of the connecting rod which
turns upon a pin or fulcrum passing through the body of an ordinary bucket or
hollow piston, the object of the invention being to. lubricate such bearing with oil
or lubricant which collects on the inside of the engine cylinder.
To effect this and to accomplish our invention, we preferably form a groove of suitable
length on the outside of the hollow piston and concentric with the axis of the cylinder. At
the bottom of this groove, or at the upper part of the piston, we drill or otherwise form in
a radial or other convenient direction, one, two, or more holes, by preference two, passing
completely through the metal of the body of such piston. These holes, or groove
when used, are so situated as to enable the oil which passes through such holes to
emerge over the pin or fulcrum of the connecting rod end. The pin or fulcrum is
formed with an internal well, chamber, or other receptacle connected by an inlet
passage or passages to the holes in the piston before named.
By this means, oil, especially when the engine is not running, drains from the side
of the cylinder into the holes in the hollow piston, and thus passes into the reservoir
formed in the pin or fulcrum.
To enable the oil so collected to lubricate the bearing of the connecting rod end,
we form outlet holes to the reservoir in the pin or fulcrum, but preferably not quite
at the lowest part of such pin, so that the oil will be thrown out on to the bearing
by the reciprocatory motion of the piston itself, when the engine is running.
The positions of the inlet and outlet passages or holes in the pin or fulcrum may
be varied, together with the holes or passages in the piston, and other variations
may be made in detail without departing from the peculiar character of the
invention.
Dated this 9th day of March 1898.
Improved Means for Lubricating a Bearing of the Connecting Rod
in Gas Engines.
We, HENRY NIELD BICKERTON and WILLIAM WOOD, both of Wellington Works,
Ashton-under-Lyne, Engineers, do hereby declare the nature of this invention and
[Price 8d.]

page_text: in what manner the same is to be performed, to be particularly deseribed and
ascertained in and by the following statement :-
This invention relates to the bearing of that end of the connecting rod which turns
upon a pin or fulerum passing through the body of an ordinary bucket or hollow piston,
the object of the invention being to lubricate such bearing with oil or lubricant
which collects on the inside of the engine cylinder. To effect this and to accomplish
our invention, we preferably form a groove of suitable length on the outside of the
hollow piston and concentric with the axis of the cylinder. At the bottom of this
groove, or at the upper part of the piston, we drill or otherwise form in a radial or
other convenient direction, one, two, or more holes or openings, by preference two,
passing completely through the metal of the body of such piston. These holes, or
groove when used, are so situated as to enable the oil which passes through such
holes to emerge directly, or by means of a pipe or tube, over the pin or fulcrum of
the connecting rod end. The pin or fulcrum is formed with an internal well,
chamber, or other receptacle connected by an inlet passage or passages to the hole
or holes in the piston before named.
By this means, oil, especially when the engine is not running, drains from the
side of the cylinder into the hole or holes in the hollow piston, and thus passes
into the reservoir formed in the pin or fulcrum.
To enable the oil so collected to lubricate the bearing of the connecting rod end,
we form outlet holes to the reservoir in the pin or fulcrum, but preferably not quite
at the lowest part of such pin, so that the oil will be thrown out on to the bearing
by the reciprocatory motion of the piston itself, when the engine is running.
But that the improvements may be better understood, we will, with the aid of the
accompanying drawings, proceed more fully to describe means employed by us.
DESCRIPTION OF DRAWINGS.
Fig. 1 is a side elevation of a portion of a hollow or bucket piston for the cylinder
of a gas engine, arranged in accordance with one form of our improvements, and
Fig. 2 is a sectional view at right angles thereto. Fig. 3 is a side elevation of a
similar hollow or bucket piston arranged in accordance with another form of our
improvements, and Fig. 4 is an end view thereof.
The same letters indicate corresponding parts wherever they occur.
a is the hollow or bucket piston provided with a groove b on the outside thereof.
A hole or holes c is or are formed at the bottom of this groove through the metal of
the body of the piston, so as to enable oil passing through such hole or holes to
emerge directly, or by means of a pipe or tube, over the pin or fulcrum d of the
connecting rod end. This pin or fulcrum is provided with an internal well or
chamber e connected by inlet passage or passages el to the hole or holes c in the
piston.
In Figs. 3 and 4 a receptacle is shown placed at the upper part of a pipe leading
to the passage e¹, for the purpose of conveniently receiving the oil from the hole c
through the short piece of piping c¹.
Outlet holes g from the well or chamber e are provided in the body of the pin or
fulcrum d, and form passages to the bearing in the connecting rod end. By this
means, it will be seen that oil or lubricant which has drained into or collected within
the groove band from thence into and through the hole or holes c, passes into and
collects within the well or chamber e in the pin or fulcrum d; when the reciprocatory
motion of the hollow piston will have the effect of throwing such oil through the
outlet holes g on to the bearing of the connecting rod end.
The positions of the inlet and outlet passages or holes in the pin or fulcrum may
be varied, together with the holes or passages in the piston, and other variations may
be made in detail without departing from the peculiar character of the invention.
Having now particularly described and ascertained the nature of our said inven.

page_text: tion, and in what manner the same is to be performed, we declare that what we
claim is :-
In the hollow or bucket piston of a gas engine, the combination of a pin or fulcrum
provided with an internal well or chamber and a passage or passages thereto from its
outer surface, with a communicating opening or openings in the body of the piston,
whether in conjunction or not with a groove therein, for the purpose and in manner
substantially as herein shown and described.
Dated this 3rd day of December 1898.
WILLIAM GADD, C.E.,
64, Barton Arcade, Manchester, Agent for Applicant.