IMPROVEMENTS IN LUBRICATORS
Year: 1879

page_text: LETTERS PATENT to Charles William Cadman, of Liverpool, in the County of
Lancaster, Engineer, for the Invention of "IMPROVEMENTS IN LUBRICATORS,"
Sealed the 12th December 1879, and dated the 20th June 1879.
PROVISIONAL SPECIFICATION left by the said Charles William Cadman at
the Office of the Commissioners of Patents on the 20th June 1879.
CHARLES WILLIAM CADMAN, of Liverpool, in the County of Lancaster, Engineer,
"IMPROVEMENTS IN LUBRICATORS."
The object of the said Invention is to so construct apparatus for containing and
supplying lubricating material to the frictional surfaces of machinery in motion
that the lubricant shall be supplied to the bearings in just sufficient quantity.
Apparatus so constructed is specially applicable for the lubrication of crank pins
and parts of machinery having a reciprocating, oscillating, or the like motion.
In carrying my Invention into practice I provide an oil cup or lubricant con-
tainer, and fit such cup or container with a valve or valves closing a way or ways
opening through the cup or container at or near the bottom thereof. A valve stem
attached to the valve or valves above mentioned projects through the way in the
cup or container, and is provided at its outer end with a knob, button, or tappet,
against which an oil cup or vessel, or a can attached to the machinery to be lubri-
cated, is caused to strike during motion.
The cup or container is secured in position by means of a bracket either to a
stationary or moving part of the machinery, or is attached in a fixed position.
The distance between the valve and the knob, button, or tappet is adjustable by
means of a screw and nut, or their equivalents, so that the time during which the
valve is lifted from its seating when struck by the oil cup or cam may be regulated
to any required point. The quantity of lubricant supplied to the frictional surfaces
may in that way be regulated to the greatest nicety. During the lifting of the
valve or valves the lubricant flows from the oil cup or container down the valve
spindle or valve spindles into a cup or vessel attached to the crank pin, connecting
rod, or machinery.
One valve stem may be made to operate several valves, so that the lubricant may
be supplied to various portions of the machinery.

page_text: Fig. 5 shews a modification in which one valve valve stem and button ; serves to
raise three valves, so as to allow of the lubrication of three different parts of an
engine.
In some marine engines where there is not sufficient room to place a full sized
lubricator directly over the place to be oiled, I fix a small lubricator, constructed as
above set forth, in the desired position, and carry a pipe or tube from the small con-
tainer, which in this case is closed, to a large container in any convenient position;
or I make use of a container like that described under Fig. 5, one of the side valves
distributing the oil through a pipe to the desired place.
Having now described and illustrated my said Invention in such manner that
others will be enabled to carry my improvements into effect, I claim,-
First. Lubricators constructed and operating substantially as and for the purposes
set forth.
Second. The combination of a container a, valve h, stem i, and cup or button j,
operating co-jointly in the manner described for the purpose set forth.
In witness whereof, I, the said Charles William Cadman, have hereunto set
my hand and seal, this Seventeenth day of January, in the year of our Lord
One thousand eight hundred and eighty.
CHARLES WILLIAM OADMAN.
(L.B.)