Improvements in Certain Kinds of Lubricators.
Year: 1895

page_text: Date of Application, 3rd Aug., 1899
Complete Specification Left. 23rd Mav. 1896-Accepted. 27th June. 1896
Date of Application, oro Aug., 1993
Complete Specification Left. 23rd May. 1896-Accepted. 27th June, 1896
PROVISIONAL SPECIFICATION.
Improvements in Certain Kinds of Lubricators.
I, THOMAS EVANS MITTON, trading as Hunt and Mitton, of Oozells Street
North, in the City of Birmingham, Engineers' Brass Founder, do hereby declare
the nature of this invention to be as follows:-
This invention has reference to lubricators for the bearings of revolving,
reciprocating and other moving bodies, such as revolving pulleys and wheels, crank
pins, reciprocating cross heads and the bearings of the various moving parts of steam
engines and other machines.
The object of this invention is to so construct the said lubricators that they will
feed the oil to the bearings in proper regular quantities as required and only when
the lubricator is moving and so that they will automatically stop feeding the oil
when the lubricator is stationary thus preventing waste. Moreover, I provide means
whereby the quantity of oil fed by the lubricator to the bearing can be regulated
as required.
In carrying out this invention I provide a glass or other closed vessel for
containing the oil. This oil vessel has a filling opening at the top which is closed
by any suitable means as by an internal spring valve which can be opened by
pressure from without. The said oil vessel has a small outlet at the bottom through
which the oil flows as hereinafter described to the bearing when the lubricator is in
motion. Within the oil vessel there is an eduction pipe in connection with the oil
outlet which eduction pipe is carried upwardly for some distance and terminates in
a trumpet shaped mouth so arranged that as the lubricator revolves or reciprocates
the oil is washed against the inside of the walls of the oil vessel and some of the oil
enters the trumpet shaped mouth and passes down the eduction pipe and through
the outlet at the bottom of the lubricator. When the lubricator is stationary the
oil does not reach the trumpet shaped mouth and therefore ceases to flow. In
order to regulate the quantity of oil which passes out through the eduction pipe as
aforesaid I provide in the eduction passage a regulating valve which is normally
closed by its dead weight or by a spring and weight acting through a lever or
acting directly on the valve so arranged that when the lubricator is moving the
inertia of the weighted valve causes the valve to open at the change of direction of
motion, as at the end or at the beginning of the stroke of an engine cross-head,
thus allowing a small quantity of the oil to pass out of the lubricator to the bearing
until the spring overcomes the inertia of the weight and closes the valve again.
Thus the oil only flows from the lubricator in certain small quantities at regular
periods at certain parts of the stroke or of the revolution and ceases to flow when
the lubricator is stationary.
The lift of the said valve can be regulated by a screw and spring or by other
means so as to regulate the quantity of oil which passes through the outlet at
each lift as aforesaid. The said valve may very conveniently be arranged in a
chamber in the neck of the lubricator and the size of this chamber and the
lift of the valve being regulated by the chamber being made in two parts screwed
together.
Dated this 2nd day of August 1895
CHARLES BOSWORTH KETLEY,
Agent for the Applicant.

page_text: Improvements in Certain Kinds of Lubricators.
1, THOMAS EVANS MITTON, trading as Hunt and Mitton, of Oozells Street
North, in the City of Birmingham, Engineers' Brass Founder, 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 lubricators for the bearings of revolving,
reciprocating and other moving bodies, such as revolving pulleys and wheels, crank
pins, reciprocating cross heads and the bearings of the various moving parts of
steam engines and other machines.
The object of this invention is to so construct the said lubricators that they will
feed the oil to the bearings in proper regular quantities as required and only
when the lubricator is moving and so that they will automatically stop feeding
the oil when the lubricator is stationary thus preventing waste. Moreover, I
provide means whereby the quantity of oil fed by the lubricator to the bearing can
be regulated as required.
I will describe my invention by referring to the accompanying drawings on
which
Fig. 1 is a sectional elevation of a lubricator constructed according to this
invention; Fig. 2 shews the upper part of the same with the filling valve open;
Fig. 3 is a sectional elevation of another form of my invention; Fig. 4 is a
sectional elevation of a portion of a modified form of the same;
Fig. 5 is a sectional elevation of another form of lubricator constructed according
to this invention; Fig. 6 shews part of the same separately and
Fig. 7 is a sectional elevation of a further modification of my invention.
The same letters of reference indicate the same or corresponding parts in all the
figs. of the drawings.
Referring firstly more particularly to Figs. 1 and 2 :-In carrying out this
invention I provide a glass or other closed vessel A for containing the oil. This
vessel may for instance consist of a glass cylinder A which is enclosed in a metallic
casing B made with a screwed cover C or be otherwise constructed. This oil
vessel has a filling opening D at the top which is closed by any suitable meaus as
by the screwed cover E which can be screwed up as shewn in Fig. 2 for filling.
The oil vessel A has a small outlet a' at the bottom through which the oil flows as
hereinafter described to the bearing when the lubricator is in motion. Within the
oil vessel A there is an eduction pipe F in connection with the oil outlet a¹ which
eduction pipe is carried upwardly for some distance and terminates in a trumpet
shaped mouth fa little above the normal level of the oil. As the lubricator
revolves or reciprocates the oil is washed against the inside of the walls of the oil
vessel A and its cover C and some of the oil enters the trumpet shaped mouth fand
passes down the eduction pipe F and through the outlet a¹ at the bottom of the
lubricator. When the lubricator is stationary the oil does not reach the trumpet
shaped mouth f and therefore ceases to flow. In order to regulate the quantity of
oil which passes out through the eduction pipe F as aforesaid I provide a regulating
valve G which can be regulated as by the screw gl passing out through the cover C
and made with a head g by which the valve can be turned so as to increase or
diminish the opening of the eduction passage and thus regulate the quantity of oil
which passes through the outlet at each lift as aforesaid. In combination with the
screw regulating valve G, I may as shewn in Fig. 3, employ a dead weight valve H
preferably of globular form arranged in the chamber I in the neck of the lubricator.
In this case the neck of the lubricator is by preference made in two parts as shewn
in Fig. 3 that is to say there is a lower part J which is screwed on to the neck

page_text: proper a both being chambered out for the valve H so that by screwing the neck
part J farther from or on to the neck a' the size of the chamber I and the lift of
the valve H can be regulated as desired. When the lubricator is moving the
inertia of the dead weight valve H causes the valve to open at the change of
stroke of motion as at the end or at the beginning of the stroke of an engine cross
head thus leaving a small quantity of the oil to pass out of the lubricator to the
bearing whilst the valve H is lifter and until this valve closes the outlet a¹ again.
Thus the oil only flows from the lubricator in certain small quantities at regular
periods at certain parts of the stroke or of the revolution and ceases to flow when
the lubricator is stationary.
Instead of the valve H being arranged in the chamber I at the bottom of the
eduction pipe F, the said valve H may if desired be arranged as shewn in Fig. 4
near the top of the eduction pipe F. In this case the part of the eduction pipe F
which has the trumpet shaped mouth is made separate from the main portion
of the eduction pipe and screwed thereon and recessed to form the chamber I
for the valve H the lift of which can thus be regulated as desired.
Fig. 5 shews a modified form of my invention in which the oil vessel A is
made of a globular form and is secured between a collar B near the bottom of
the eduction pipe F and a top cup or cap C which is screwed on to the upper
part of the eduction pipe F, which in this case is continued above its trumpet
shaped mouth and is made with side openings ; through which the oil washes
from the oil vessel A out of the eduction pipe F. The filling opening D is in
this case closed by an internal spring valve K which is pressed upwardly by
the spring so as to close the inlet D, and then when the lubricator is required
to be filled the top k' of the valve K has to be pressed down against the spring
to open the valve inlet D and permit of the oil being poured into the oil
vessel A.
In a modification of my invention shewn by Fig. 7 the regulating valve G is
normally closed by the spring M acting upon the outer end of the lever N
which is fixed to the top of the vulve spindle g¹ which in this case is not screw
threaded but is made to move up and down through the upper part of the valve K.
Thus the spring M forces the valve G downwardly and when the lubricator is at
rest the valve G closes the eduction pipe F. The lever N has an arm n¹ on
which is a counter weight O standing upwardly and so arranged that when the
lubricator is moving the inertia of the weight O causes the valve G to open at the
change of the direction of motion, as at the end or at the beginning of the stroke
of an engine cross head, similarly as does the valve H so that a small quantity of
oil will pass out of the lubricator to the bearing until the spring M overcomes
the inertia of the weight O and closes the valve G again. It will be evident
that when the valve G is used, the self acting valve H may if desired be dispensed
with.
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 :-
1. In the closed oil vessel of a lubricator of the kind herein referred to, the
employment of an open top eduction pipe standing up from the bottom of the same
and arranged to catch some of the oil when the lubricator revolves or reciprocates
and lead the oil through the hole at the bottom of the lubricator, in combination
with a screwed or other valve or valves adapted to control the flow of the oil
through the eduction pipe when the lubricator is moving, substantially as herein-
before described.
2. In a lubricator of the kind herein referred to, the combination with the oil
vessel A B made with a cover C and filling valve E, of the eduction pipe F standing
up above the oil level and the screwed valve G adapted to regulate the flow of oil
through the eduction pipe F and made either with or without the self closing
valve H in a chamber in the eduction pipe, substantially as and for the purposes

page_text: herein before described and illustrated by Figs. 1, 2, 3 and 4 of the accompanying
drawings.
3. In a lubricator of the kind herein referred to the combination with the oil
vessel A B made with a cover C, of the spring controlled filling valve K, the
eduction pipe F standing up above the oil level and the valve H adapted to regulate
the flow of oil through the eduction pipe F, all substantially as and for the purposes
.herein described and illustrated by Fig. 5 of the accompanying drawings.
4. In a lubricator of the kind herein referred to the combination with the oil
vessel A made with a cover C, of the valve G and spring controlled weighted
lever N arranged to open and close the eduction pipe at the change of motion of the
said lubricator and the valve H in the chamber in the eduction pipe, all substantially
as and for the purposes herein before described and illustrated by Fig. 7 of the
accompanying drawings.
Dated this 21st day of May 1896.
CHARLES BOSWORTH KETLEY,
Agent for the Applicant.