Improvements in Lubricators.
Year: 1896

page_text: PROVISIONAL SPECIFICATION.......
Improvements in Lubricators.
I ANDREW BOLTON 16 Wellington Street (St. John's) Blackburn Lancashire"
Consulting Engineer do hereby declare the nature of this invention to be as
follows:-
The application of the principle of Hydraulic Force to the feeding of Lubricant
to wearing surfaces working under pressure. Whereas this effect has been
accomplished hitherto either by the application of steam force acting on a piston,
by Mechanical Force acting on a piston, by pumping lubricant direct, or by
displacement of lubricant due to Steam Condensation (all of which devices have
their risks and uncertainties in action due to sticking or clogging of the moving
parts and the unreliability of the condensing principle) my invention accomplishes
the same object without these risks and uncertainties as it displaces the lubricant
in the oil receiver by direct Hydraulic pressure regulated to overcome any'
opposing force. I would obtain the requisite pressure by means of an ordinary
pump.
Datod this Ninth day of Santamban 1900
Improvements in Lubricators.
I ANDREW BOLTON, late of 16 Wellington Street, St. John's, Blackburn, now. of
100 St. Luke's Road, Southport, both in the County of Lancaster, Consulting.
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 consists principally in the application (substantially in the
manner hereinafter described) of the principle of hydraulic force to the feeding
of lubricants to wearing surfaces, working under pressure.
t
Whereas this effect has been accomplished hitherto either by the application
of steam force acting directly on a piston, by mechanical force acting directly on a
piston, by pumping the lubricant direct, or by the displacement of the lubricant
due to the condensation of steam, (all of which devices have their risks and
uncertainties of action due to sticking or clogging of the moving parts, and the
unreliability of the condensation principle) my invention accomplishes the same
object without these risks and uncertainties as it displaces the oil or other
lubricant by hydraulic pressure which is so regulated as to overcome any opposing

page_text: force, and to deliver the required amount of oil or other lubricant with regularity
and certainty. I prefer to obtain the requisite amount of pressure by means of
an ordinary pump worked by a lever actuated by some convenient moving part of
the engine or other source of power having a constant to-and-fro motion.
My invention is applicable to various forms of lubricator but for the sake of
illustration I will describe it as applied to that form known as a "sight-feed"
lubricator and the manner in which my said invention is to be performed or
carried into practical effect will be readily understood on reference to the
lustrative drawing hereunto annexed and the following explanation thereof.
The drawing represents an elevation (partly in section) of a hydraulic
lubricator constructed according to my invention. a is a cold water cistern on
which is located an oil receiver b. This latter is provided with "sights" c of the
usual construction which I prefer to make in "duplex" form as shewn, each
sight" being provided with two tubes and the necessary taps, the second glass
to each "feed" acting as a reserve and each glass being readily removable for
cleaning or replacement.
66
The oil receiver b is also fitted with a screw plug or valve d for charging the
same.
Connected with the cold water cistern a is a small force pumpe (the suction f
of which is preferably protected by wire gauze) and this pump e is actuated by a
lever rocking on a fulcrum h, and attached to any suitable and convenient
working part of the engine.
The fulcrum of this lever is provided with a tappet i working in a slotted head k
attached to or forming part of the plunger of the pump e. This slotted head is
provided with a regulating screw 7 by adjusting which the stroke of the plunger
and consequently the amount of oil or other lubricant supplied can be regulated
with the greatest accuracy, the taps of the "sight-feeds" always remaining fully
open, so that the regular flow of the lubricant is not in any way obstructed.
m is the delivery pipe for the cold water which is provided with an escape valve
at n for the return of any excess of water, which falls back again into the cistern a,
and o is a water outlet plug for emptying the oil receiver 6 when required.
By the method above described the oil being propelled by the pressure of the
column of water (and not by direct pump stroke) only sufficient water goes into
the oil receiver to replace the oil forced out, and thus the required slow "drop"
speed, or any other required velocity up to a continuous flow, can be easily and
steadily maintained by merely regulating the stroke of the cold water pump e by
means of the screw 7, the "feed" taps being always fully open.
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 :-
The improvements in lubricators consisting principally in the application
thereto of hydraulic force for the feeding of the oil or other lubricant substantially
in the manner herein before described and illustrated by the drawing annexed.
Dated this 8th day of June 1897.
GEO. DAVIES & SON,
4, St. Ann's Square, Manchester, Agents for the Applicant.