Improvements in Self-acting Lubricators for Lubricating the Cylinders and Valves of Steam Engines.
Year: 1893

page_text: Date of Application, 6th July, 1893
Complete Specification Left, 30th Aug., 1893-Accepted, 30th Sept., 1893
PROVISIONAL SPECIFICATION.
Improvements in Self-acting Lubricators for Lubricating the
Cylinders and Valves of Steam Engines.
I, THOMAS WILLIAM LEES, of 25, Park Place, Halifax, in the County of
York, Engineer, do hereby declare the nature of this invention to be as follows:-
This invention has reference to self-acting apparatus for lubricating the cylinders
and valves of steam engines and the parts of other machinery, the invention
primarily consisting in forming a vacuum or partial vacuum within a tube and in
combining a syphon pipe therewith for intermittently feeding the oil.
In constructing a lubricator according to my invention, I make use of a tank or
vessel in which there is a rocking shaft actuated from any convenient going part of
the engine or machine. This rocking shaft carries one or more levers connected to
pistons or plungers preferably arranged horizontally. The piston or pistons are
made to reciprocate in cylinders or pipes, in connection with vertical passages
or glass tubes, the upper end of which is in connection with a syphon pipe which
dips into the lubricant in the tank or vessel, the arrangement being such that each
time the piston withdraws from its cylinder a vacuum or partial vacuum is formed
in the vertical passage or glass tube the effect of which is to cause the syphon to
draw lubricant and discharge it into the vertical pipe or glass tube, such said
lubricant dropping into the cylinder so that on the next forward movement of the
piston the lubricant is ejected past one or more check valves where it enters the
cylinder or onto the valve requiring to be lubricated. The top of the vertical
passage or glass tube is provided with a screw down valve or plug so as to regulate
the quantity of lubricant discharged into the glass tube by the syphon. This
lubricator may or may not be a sight feed, but the rocking shaft may operate
one or more pistons so that all the parts of an engine may be lubricated from one
central compound lubricator.
A lubricator constructed as herein described will be found perfectly automatic,
positive in its action, and simple in construction and will require no attention on
the part of the workman.
ונית
51 1
ST. 1902
TASKER & CROSSLEY,
Halifax, Agents.
COMPLETE SPECIFICATION.
Improvements in Self-acting Lubricators for Lubricating the
Cylinders and Valves of Steam Engines.
I, THOMAS WILLIAM LEES, of 25, Park Place, Halifax, in the County of
York, Engineer, do hereby declare the nature of this invention and in what
manner the same is to be performed, to be particularly described and ascertained
in and by the following statement:-
This invention has reference to self-acting apparatus for lubricating the cylinders
and valves of steam engines and the parts of other machinery, the invention
primarily consisting in forming a vacuum or partial vacuum within a tube, and in
combining therewith a suction pipe and a pump for intermittently feeding the oil.
Such being the nature and object of my invention, I will now make reference to
the accompanying drawing illustrative thereof, which is sectional elevation of my
improved lubricator. A represents a vessel containing oil or other lubricant,
within which vessel is a cross shaft B having a lever C mounted upon it and

page_text: operated in a backward and forward direction from any convenient going part of
the engine or machine. Connected to the bottom of the lever C is a link D
attached to a piston or ram E working within a cylinder F acting after the
manner of a pump. In communication with this pump I arrange a sight feed
tube G, the upper end of which is in communication with a screw down valve H
and also in communication with a suction or feed pipe I so that each time the
piston withdraws from the cylinder F a partial vacuum is formed within the tube G
and this causes the feed pipe I to suck or draw lubricant from the vessel A. and to
discharge it into the valve H after which the lubricant drops down the tube G
into the cylinder F and on the next forward movement of the piston the lubricant
is ejected through the valve J onto the part or parts to be lubricated and this
automatic feeding of the lubricant takes place at every forward movement of
the piston.
The vacuum in the tube G effected by the withdrawal of the piston always
causes the suction pipe to draw oil from the vessel, the screw down valve H being
employed to regulate the quantity of lubricant passing down the tube G. The
back pressure valve J whilst it freely opens by the pressure of the piston E
prevents any steam passing through it from behind.
Although I have shewn and described that the outlet of the suction pipe I
occupies a position above the level of the oil, I would observe that the suction pipe
may be in the form of a syphon pipe, and the pump and parts connected thereto
may occupy a position below the oil cistern so that instead of the oil being sucked
in by pipe I it may be syphoned into the valve H, and in some cases the pipe I
may feed the lubricant direct into the pump F. This form of lubricator is simple
in construction and positive in its action and it will force lubricant against any
ordinary pressure of steam and the quantity of lubricant passed through the pump
can be regulated by the valve H to one or two drops a minute or more and by the
use of this construction of lubricator the tube glasses G will not break as they
have only the atmospheric pressure to resist.
This lubricator may or may not be a sight feed whilst the lever C may be
arranged to operate one or more pistons so that several parts of an engine can be
lubricated from one central compound lubricator.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
:-
Firstly. In a lubricator having a vessel for containing lubricant, the combination
therewith of pump F tube G valve H and suction pipe I, all arranged in the
manner substantially as herein shewn and described.
Secondly. In a lubricator, the combination of pump F suction pipe I and
vessel A.