IMPROVEMENTS IN LUBRICATOR ATTACHMENTS FOR RAILWAY AND OTHER ENGINES
Year: 1882

page_text: LETTERS PATENT to Philip Middleton Justice of Southampton Buildings in
the county of Middlesex Patent Agent for an Invention of "IMPROVEMENTS
IN LUBRICATOR ATTACHMENTS FOR RAILWAY AND OTHER ENGINES." A com-
munication to him from abroad by Ross Jones Hoffman of Binghamton, State
of New York, United States of America.
PROVISIONAL SPECIFICATION left by the said Philip Middleton Justice at
the Office of the Commissioners of Patents on the 14th November 1882.
PHILIP MIDDLETON JUSTICE of Southampton Buildings in the County of
Middlesex Patent Agent IMPROVEMENTS IN LUBRICATOR ATTACHMENTS FOR
RAILWAY AND OTHER ENGINES A communication to me from abroad by Ross
Jones Hoffman of Binghamton, State of New York United States of America
This Invention relates to automatic lubricators for Railway and other engines.
Heretofore so far as I am aware it has been found impossible to apply practically
to Railway engines, the automatic feed lubrication generally applied to stationary
engines As is well known Locomotive or railway engines vary greatly and
constantly in the steam pressure When going down grades steam is shut off
wholly and between this and the full head there are all intermediate degrees of
pressure.
This great and perpetual variation prevents the use of the ordinary steam feed.
Hence it happens that when the steam is shut off the engine runs without that
lubrication which the moisture of the steam supplies and in consequence not only
is the lubrication less uniform, but more oil is needed To overcome this irregularity
of steam pressure and to produce an uniform and constant steam feed of the
lubricant is the object of the invention hereinafter set forth This invention
consists principally of a constant steam feed lubrication in connection with an
engine subject to variable work It consists further of an automatic valve and an
arrangement of steam pipes in relation to the lubricator the boiler and the
cylinders whereby the back pressure of the steam in the cylinder is made to
regulate the flow of steam which carries the lubricant to the working parts of the
engine. It consists further of details of construction all as hereinafter described
In applying this invention to a boiler such as those now in common use the
ordinary pipe which conducts the oil from the ordinary cup to the cylinder is made
use of to conduct the oil or other lubricant
To the upper end of this pipe I attach my valve mechanism

page_text: The valve chamber has a short pipe for connection with the lubricator pipe
extending longitudinally and another short pipe on the opposite side for connection
with the lubricator cup A third pipe connects with the pipe leading to the dome
of the boiler Steam from the dome is conducted through this pipe to the lubricator
cup and through ports in the valve chamber to the cylinder through the lubricator
pipe These ports are constantly open to a greater or less degree so that there is
always some flow of steam from the dome to the valve chests and cylinders. The
valve in the valve chamber works closely fitting in a tubular case in which are the
ports Its stem passes down through the passago and extends into the socketted
end of a supplemental stem threaded through the solid end of the valve chamber.
A stem is provided with a collar and the supplemental stem is also provided with
a collar Between these collars is a spring coiled about the stems which spring is
regulated in pressure by the supplemental stem and tends constantly to lift the
valve When the engine is still this valve is set for a certain amount of flow The
steam from the dome passes down around the tubular case and through the ports
to the lubricator pipe meeting there with no resistance But when steam is let
into the cylinders the back pressure checks the flow of steam from the dome At
the same time this back pressure reinforces the spring and both together overcome
more or less the pressure of steam above the valve thereby lifting said valve and
opening the ports wider to facilitate the flow of steam froin above and counteract
the back pressure Manifestly the amount of back pressure will lift the valve
more or less as it varies but always in exact proportion to its tendency to retard
the flow of steam from above In this way the steam supply froin the dome is
regulated and kept uniform and thereby an uniformly regulated supply-of oil-is
obtained mixed with steam and carried thereby under all circumstances In
applying my apparatus to new engines I may dispense with the outside pipes and
use a slightly modified arrangement in which I carry the lubricator pipe into the
dry steam pipe beneath the throttle valve thus shutting this pipe and dispensing
with the outside pipe I-do-not-confine-myself_to_the_precise form of valve
described as this may be varied it being only essential that the valve should be so
arranged as to receive the pressure of steam carrying the lubricant, and that the
back pressure of steam from the cylinders should reinforce a constant force acting
underneath the valve against the pressure of the steam from the dome which supplies
the lubricant I have described my invention as particularly applied to locomotive
or railway engines but the same arrangement of apparatus may be applied with
like effect to engines in mines and other places where there is a great variety of
back power
SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Philip Middleton Justice in the Great Seal Patent Office on the
21st April 1883.
PHILIP MIDDLETON JUSTICE of Southampton Buildings in the County of
Middlesex Patent Agent "IMPROVEMENTS IN LUBRICATOR ATTACHMENTS FOR
RAILWAY AND OTHER ENGINES" A communication from abroad by Ross Jones
Hoffman of Binghamton State of New York, United States of America
This Invention relates to automatic lubricators for railway and other engines
Heretofore so far as I am aware it has been found impossible to apply practically

page_text: to railway engines the automatic feed lubrication generally applied to stationary
engines As is well known locomotive or railway engines vary greatly and
constantly in the steam pressuro
When going down grades, steain is shut off wholly and between this and the full
head there are all intermediate degrees of pressure. This great and perpetual
variation prevents the use of the ordinary steam feed
Hence it happens that when the steam is shut off the engine runs without that
lubrication which the moisture of the steam supplies and in consequence not only
is the lubrication less uniform but more oil is needed To overcome this irregularity
of steam pressure and to produce an uniform and constant steam feed of the
lubricant is the object of the invention hereinafter set forth. The invention
consists principally of a constant steam feed lubrication in connection with an
engine subject to variable work It consists further of an automatic valve and an
arrangement of steam pipes in relation to the lubricator, the boiler and the cylinders
whereby the back pressure of the steam in the cylinder is made to regulate the
flow of steam which carries the lubricant to the working parts of the engine It
consists further of details of construction all as hereinafter described and pointed
out in the claims In the drawings accompanying and forming part of this
specification Figure 1 represents a side elevation of a locomotive boiler with the
apparatus attached Figure 2 represents a like view of such a boiler with a
modified mode of application of the tubes Figure 3 is a central vertical section of
the valves In these drawings Fig 1 represents the mode of applying this invon-
tion to a boiler such as those now in common uso; the ordinary pipe a. which
conducts the oil from the ordinary cup to the cylinder is made use of to conduct
the oil or other lubricant To the upper end of this pipo marked d is attached the
valve mechanism D shown more clearly in Fig 3. The valve chamber has a short
pipe 1 for connection with the lubricator pipe d extending longitudinally and
another short pipe 2 on the opposite side for connection with the lubricator cup
A third pipe 3 connects with the pipe cleading to the dome of the boiler Steam
from the dome is conducted through this pipe through pipo 3 to the lubricator
cup E by pipe 2 and through ports h. h. in the valve chamber to the cylinder
through the lubricator pipe a. These ports are constantly open to a greater or less
degree so that there is always some flow of steam from the dome to the valve
chests and cylinders The valve fin the valve chamber works closely fitting in a
tubular case g. in which are the ports h. h. Its stem passes down through the
passage and extends into the socketted end of a supplemental stem m. threaded
through the solid end of the valve chamber A stem l. is provided with a collar 5
and the supplemental stem m. is also provided with a collar 4 Between these
collars is a spring k. coiled about the stems which spring is regulated in pressure
by the supplemental stem m. and tends constantly to lift the valve f. When the
engine is still, this valve is set for a certain amount of flow. The steam from tho
dome passes down around the tubular case g. and through the ports h. h. to the
lubricator pipe a. meeting there with no resistance But when steam is let into
the cylinders the back pressure checks the flow of steam from the dome. At the
same time this back pressure reinforces the spring k and both together overcomo
more or less the pressure of steam above the valve f thereby lifting said valve aud
opening the ports h. h. wider to facilitate the flow of steam from above and
counteract the back pressure. Manifestly the amount of back pressure will lift the
valve more or less as it varies but always in exact proportion to its tendency to
retard the flow of steam from above In this way the steam supply from the
lome is regulated and kept uniform and thereby an uniformly regulated supply of
il is obtained mixed with steam and carried thereby under all circumstances In
pplying this apparatus to new engines, the out-ide pipes a. 2. may be dispensed
vith and the arrangement shown in Fig 2 may be used. In this arrangement the
abricator pipe is carried into the dry steam pipe F beneath the throttle valve,
hus shutting this pipe and dispensing with the outside pipe a. I do not confine
yself to the precise form of valve described, as this may be varied, it being only

page_text: essential that the valve should be so arranged as to receive the pressure of steam
carrying the lubricant and that the back pressure of steam from the cylinders
should reinforce a constant force acting underneath the valve against the pressure
of the steam from the dome which supplies the lubricant I have shown only one
pipe to the cylinder but obviously they are the same on both sides I have
described the invention as particularly applied to locomotive or railway engines,
but the same arrangement of apparatus may be applied with like effect to engines
in mines and other places where there is a great variety of back power.
Having thus described the nature of the said invention What I claim and desire
to secure by Letters Patent is
1 In connection with the boiler and steam cylinder of the class described, an
automatic lubricator cup connected to a valve chamber above the valve thereof, a
pipe connecting said valve chamber above the valve with the interior of the boiler,
a valve having ports constantly open as described for the passage of a small escape
of the steam, means for giving a constant pressure underneath the said valve and n
steam pipe connecting the valve chamber below the valve to the interior of the
cylinder substantially as described
nd The combination of the lubricator cup E valve mechanism D having valvo
and ports h. h. constantly open to some extent; variable mechanism for pressing
said valve upward; pipe c leading to the interior of the dome or boiler, and pipe d
leading to connection with the cylinder substantially as described
3rd In.connection with a boiler and cylinders of a locomotive, a steam supply
pipe leading from the dome and connected-with-the-cylinders, a suitable automatic
lubricator valve chamber and valve between the lubricator and the cylinders,
ports allowing a constant flow of steam in limited quantity from the valve to the
cylinders, and..means substantially as described whereby the back pressure of the
steam in the cylinders may lift the valve and increase-tho-flow of steam substantially
as described-
4 In combination with the boiler and cylinder-of-a-locomotive_a_lubricator
cup E and a valve mechanism D-consisting of a chamber having pipe connections
1. 2. 3 and valve f having telescoping stems L. and m. collars 4 and 5, and spring k
and ports h. h the said valve mechanism and lubricator being connected to each
other, to the steam cylinder and boiler by pipe connections as described whereby
the steam from the boiler is constantly supplied in limited quantity to the cylinder
and the supply of steam varied all as set forth
In Witness whereof I the said Philip Middleton Justice have hereunto set my
hand and seal this twentyfirst day of April in the year of Our Lord one
thousand eight hundred and eightythree.
תזזזזזת
TTTOMAN
Signed, sealed and delivered
in the presence of
HENRY B HATCHWELL
55 & 56 Chancery Lane
W.C
זו תזזית
THIN
TTTOMIAD
COMES
MIN