IMPROVEMENTS IN LUBRICATORS
Year: 1884

page_text: ROBERT THOMPSON BAINES and ANDREW THOMSON both of 6 Fenchurch
Buildings Fenchurch Street in the City of London Iron & Brassfounders, do
hereby declare the nature of our invention for IMPROVEMENTS IN LUBRICATORS, to
be as follows:-
The object of our invention is to manufacture Lubricators applicable to Steam
Engine Cylinders Valve Chests and analogous purposes in an improved manner.
In the following description its application to Steam Engine Cylinders will be
shown from which discription its application to Valve boxes and analagous purposes
will be understood without further details.
Our Lubricator is of a cylindrical form the lower end of which is provided with
a screwed neck to screw into the cylinder cover as usual-The upper end is
furnished with a cup which screws into and forms the cover of the cylindrical
portion or body of the Lubricator-The joint being made steam tight-The centre
of the cup is furnished with a boss which is bored through longitudinally and
tapped with an internal screw thread-The space in the cup is therefore of annular
form-One, two or more small holes are made at the bottom of this annular space
for the passage of lubricant into the central bore of the cup-The lower end of the
central bore of the cup is countersunk, or coned to form a seat for a conical valve,
the spindle of which is tapped to fit the screw in the centre of the cup-The
upper end of this spindle is fitted to a cup cover which is also formed as a hand
wheel for turning the screw thus forming a combined cup cover and hand-wheel
for turning the screw and opening and closing the inlet grease valve-The cup
cover is formed to allow air to pass between it and the cup-The cup cover has
also a port for admitting the lubricant which port is covered with a slide-The
cone which fits the valve seat is a ring of gun metal ground to a steam tight fit
and is free to revolve on the spindel-This valve is opened and closed by means of
the screw spindle actuated by the hand wheel.
The lower end of the body of the lubricator is fitted with two valves the
spindles of which are horizontal, and the valves being made on the same principle
as that above described or equivalent thereto the conical valves being so formed, as
to be capable of revolving independently of their spindles one of these valves is
for the purpose of drawing off the condensed water from the lubricator—The third
valve controls a passage leading (through the neck of the lubricator) from the

page_text: Steam Cylinder to the body of the lubricator-This valve has a spindle which
passes a stuffing box and a portion of the spindle has a screw thread fitting the
block below the gland-When this valve is opened the steam has access to a
horizontal passage at the lower end of the body of the lubricator-The horizontal
passage has two small vertical tubes fitted thereto both being in the body of the
Jubricator and reaching nearly to the inside of the cover-One of these tubes is
rather shorter than the other-The action is as follows:-
The two lower valves being shut and the upper valve open the lubricant is
placed in the cup through the opening in the cup cover The slide is then shut
over this opening and the upper valve is shut-Steam is then admitted to the
lubricator by the steam valve being opened the steam passing up the small enclosed
pipes into the body of the lubricator which soon becomes partially filled with
condensed water, The lubricant floats on the condensed water until it rises just
above the height of the shorter of the small pipes-The lubricant then runs
down the shorter of the small vertical pipes through the steam passage into the 1
Cylinder.
Dad Li 10th

page_text: COMPLETE SPECIFICATION,
We ROBERT THOMPSON BAINES and ANDREW THOMSON both of Fenchurchi
Buildings, Fenchurch Street in the City of London, Iron and Brass Founders do
hereby declare the nature of our invention for IMPROVEMENTS IN LUBRICATORS and
in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement :—
The object of our Invention is to manufacture lubricators, applicable to steam
engine cylinders, valve chests and analogous purposes, in an improved manner..
In the following description, its application to steam engine cylinders is shewn,
from which description its application to valve boxes and analogous purposes will
be understood, reference being had to the accompanying drawings, in which similar
letters of reference indicate corresponding parts.
Fig. 1 is an elevation of the lubricator complete ready for insertion into the
cylinder cover Fig. 2 is a section of the same on the line 1-2 of Fig. 5-Fig. 3 is
an elevation partly in section, on the line 3-4 of Fig. 5-Fig. 4 is a section of
the same on the line 5-6 of Fig 5-Fig. 5 is a top view of the lubricator-
Fig. 6 represents in detail the parts of the lower regulating valve, partly in section,
and Fig. 7 and 8 are detail views and sections of the top valve, cover and
connections.
The body of the lubricator a. is of a cylindrical form, the lower end of which
is provided with a screwed neck b. to screw into the cylinder cover, as usual.
The upper end is furnished with a cup c. which screws into and forms the cover
of the cylindrical portion of the lubricator, the joint being made steam tight-The
centre of the cup is furnished with a boss d. which is bored through longitudinally
and tapped with an internal screw thread-The space in the cup is therefore of an
annular form One, two or more small holes e. is or are made at the bottom of this
annular space for the passage of the lubricant into the central bore of the cup-The
lower end of the central bore is countersunk or coned at f. to form a seat for a
conical valve, the spindle f¹ of which is tapped to fit the screw in the centre of the
boss The upper end of this spindle is fitted to a cup cover g. which is also formed
as a hand wheel for turning the screw, thus forming a combined cup, cover and
hand wheel, for turning the screw, and opening and closing the inlet grease valve.
The cup cover is constructed so as to allow air to pass between it and the cup-
The cup cover has also a port h. for admitting the lubricant, which port is covered
by the slide i.
The cone which fits the valve seat f. is a ring of gun metal ground to a steam
tight fit, and is free to revolve on the spindle-This valve is opened and closed by
means of a screw spindle f¹ actuated by the hand-wheel g.
The lower end of body of the lubricator is fitted with two valves k and l. the
spindles of which are horizontal, and the valves are made on the same principle as
that above described or equivalent thereto, the conical valves being so formed as to
be capable of revolving independently of their spindles This method of construction
will be clearly understood on reference to the detail drawing Fig. 6.
The valve k. is for the purpose of drawing off the condensed water from the
lubricator.

page_text: The third valve controls a passage m. leading (through the neck of the lubricator)
from the steam cylinder to the body of the lubricator-This valve has a spindle n.
which passes through a stuffing box o, and a portion of the spindle has a screw
thread at p. fitting the block below the gland.
the
When the valve l. is opened the steam has access to a horizontal passage m',
upper part of which passage is fitted with a vertical tube 9 rising in the body of
the lubricator nearly to the inside of the cover, as shown.
The action of the lubricator is as follows:-The valves k and Z. being shut, and
the valve f. open; the lubricant is placed in the body of the lubricator through the
opening in the cup cover. The slide i. is then shut over this opening h. and the
valve f. is shut. Steam is then admitted to the lubricator by the steam valve l.
being opened, the steam passing up the pipe q. into the body of the lubricator,
which soon becomes partially filled with condensed water-The lubricant floats on
the condensed water until it rises just above the height of the pipe q. down which
pipe the lubricant then runs through the steam passage m' and m. to the cylinder.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
we claim is
1. The manufacture and use of lubricators constructed arranged and operating in
the manner and for the purpose substantially as hereinbefore described and shewn
on the drawings.
2. The general construction, arrangement and combination of the several and
respective parts together forming our improvements in lubricators, substantially as
bereinbefore described and shewn on the drawings.