IMPROVEMENTS IN AND CONNECTED WITH LUBRICATORS
Year: 1885

page_text: DIECIFICATION
I, PHILIP MIDDLETON JUSTICE of 55 and 56 Chancery Lane in the County of
Middlesex Fellow of the Institute of Patent Agents do hereby declare the nature
of the said invention for IMPROVEMENTS IN AND CONNECTED WITH LUBRICATORS, &
communication to me from abroad by the Peerless Oil Ejector Company (Incor-
porated) of Quincy, Illinois, United States of America Manufacturers and in what
manner the same is to be performed, to be particularly described and ascertained
in and by the following statement:-
This Invention relates to the construction and arrangement of lubricator cups of
that class in which the oil is fed to the engine by displacement, caused by the con-
densation of the steam conducted from the boiler space into the oil cup.
The displaced oil is thence conducted to the working parts of the engine. The
object of the invention is to render the parts more compact, and to simplify the
construction. To clearly explain the invention, reference is made to the accom-
panying drawings which form part of this specification and in which,
Figure 1. represents an elevation of the improved cup.
Figure 2. is a detail sectional view of the drip tube and its valve showing also
the connection with the equalizing pipe.
Figure 3. is a detail sectional view.
Figure 4. is a side elevation with the reservoir, and the branched stem, in
section.
Figure 5. represents in elevation the cup modified and adapted to be attached to
& locomotive.
•
Figure 6. is a front elevation of the same with a portion partly in section.
Figure 7. is a side elevation with some of the parts in section,
Figure 8. is a sectional view of a slightly different form.
I will first proceed to describe the stationary cup, shown in Figs 1 to 4 inclusive,
wherein A represents the oil reservoir of the ordinary cylindrical form but cast
without any bosses or projections. It is supported upon a branch stem B which is
screwed into any suitable steam connection, whereby steam may be taken from the
boiler space and oil may be transmitted to the parts which are to be lubricated.
The stem B is threaded at its lower end for this connection. It has two branches a. b;
the branch a. being solid and supporting the reservoir A. The branch bis
tubular and is connected with the glass tube which forms a sight feed. The lower
end of the glass tube c is connected by suitable coupling pieces d e. and packing,
to the branch b. The upper end of the tube is connected by a coupling fand
packing to a cap G. This cap G has a stem g screwed into the body of the cup
[Price 6d.]

page_text: near its upper end, and through this stem and the cap, a passage is formed for the
displaced oil to a drip nozzle i, in the glass tube. It will be understood that
the stem forms a communication between the reservoir and the glass tube. At the
junction of the passage, in the branches a. b. with the tube leading into the steam
space is a pipe D inserted into a nipple k cast into one piece with the stem B.
Upon the other side of the stem directly opposite the connection of the pipe D, but
seated a little lower, is a valve E which is adapted to close the communication
between the cup and the steam space, below the junction of the passages in the
branch band the pipe D, so that, by closing this one valve, steam may be wholly
shut off from the.cup, and the flow of oil excluded at the same time, and this single
valve takes the place of two valves heretofore used.
The cap G is provided with a regulating valve F and it also has an equalizing
pipe l, connected with it and also connected at the other end with the pipe D by
means of an ordinary T coupling.
The upper end of the pipe D is bent over, and coiled about itself to form a
condenser.
The end is then carried laterally, and is connected by a suitable coupling to a
plug H which is connected to the upper end of the reservoir, and in this plug is
the filling orifice provided with an ordinary screw stopper. At the bottom of the
reservoir is a drain cock m, for drawing off the water of condensation. In the opera-
tion of the machine, the steam is introduced through the stem B, and rises through
the pipe D, in the coil of which it condenses, and flows as water of condensation
into the cup where it displaces the oil in the ordinary manner. The oil displaced
runs off through the stem g into the cap G and drops from the nipple through the
glass tube, flows down through the branch b into the steam passage, and thence to
the parts to be lubricated. Part of the steam from the pipe D is diverged to the cap
and equalizes the pressure in the passage between the oil cup and the glass tube
thereby aiding to keep those passages warm, and prevent any obstruction therein.
The cup as modified for locomotive engines is shown in Figs 5 to 8 inclusive,
I representing the oil reservoir on a suitable bracket H' which may be attached to
any convenient base. On each side of the reservoir is located a sight feed tube a¹.
At the upper ends of the tubes are caps b¹ connected with the reservoir at its upper
end as before described. At the bottom are fittings T connected on one side by a
solid coupling S with the sides of the reservoir.
The other side of the lower fittings are connected each to a pipe U leading to the
steam chest. From the caps b¹ on each side, equalizing branch pipes D' are led to
a four way connection O. These branch pipes serve to balance the pressure in the
glass pipes and to promote the feed.
To this connection is attached a pipe P in communication with the boiler. This
is provided with a valve C¹ which shuts off steam both from the reservoir and from
the equalizing pipes. The connection between the pipes Paud A', and the pipes D',
is a single casting in cross form. The steam is led to the reservoir through a pipe A¹
having a condensing coil formed by coiling the pipe back upon itself. The lower
end of the coil enters the top of the reservoir aud extends near to the bottom.
The coil. itself surmounts in compact form, the reservoir and forms a condensing
chamber thereon and by its side is the filling cap H2 Regulating valves E' E¹ are
placed in the caps b₁ and control the flow of oil to the steam chests. Stop
valves G G are placed in the fittings T. In order to regulate the supply of steam
to the condensing coil, without interfering with the passage of steam in the
equalizing and feed pipes, I provido a check valve m¹ in the fitting just above the
junction of the pipes D¹. The whole steam supply is obtained for the reservoir and
for the equalizing pipes, through the pipe P. This furnishes the water of condensa-
tion for the displacement of the oil in the reservoir, and it also supplies steam
through the reservoir and the pipes D¹ to the upper part of the drip tubes of the
sight feed tubes, thus equalizing the pressure in these tubes against the steam from
the pipes U and facilitates the feed of the oil These latter pipes U with the single
pipe P are the only pipes connecting with the steam space.

page_text: In Figure S is shown a modified form of the cup in which the oil reservoir is
supported on a bracket which bracket has arms k¹ k¹. To these arms the lower
fittings of the glass tubes are fixed instead of being attached to the sides of the
reservoir. Whether made in this form or in the form shown in the other figures
the lubricator is compact, and is easily applied to the locomotive.
The sight feed tubes have their connections with the reservoir near the upper
part of the reservoir and their lower fittings with the pipes leading to the dry
steam pipes. These sight feed tubes are therefore filled with steam when the cup
is working.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed as communicated to
me by my foreign correspondents I declare that what I claim is
1. A lubricator consisting of a reservoir I, a steam supply pipe connected with a
condensing coil communicating with the reservoir, sight feed tubes on each side
of the reservoir, equalizing branch pipes D¹, extending from the main supply
pipe P to the caps of the sight feed tubes, and direct connections between the sight
feed tubes, and the parts to be lubricated substantially as described.
2. In combination, the oil reservoir of the lubricator cup, the steam supply pipe P
and its lateral branches D', the sight feed tubes arranged upon each side of the
reservoir, condensing coil, and the regulating valve m³ placed in the said pipe A'
above the junction of the branches D₁ with the pipe P all substantially as
described.
3. In combination with the reservoir of a lubricator cup, the pipe P, and its
branches D the pipe A¹ extending from the junction of the pipe P, and D' and
terminating in the coil wound around the said pipe A¹ and communicating with
the reservoir at the top thereof substantially as described.
4. The combination in a lubricator of a central stem B adapted to be connected
with the steam space, branches a. b extending laterally from said stem, the branch a,
being solid and adapted to support the reservoir, and the branch b being adapted
to support the glass tube arranged parallel, with the reservoir substantially as
described.
5. The combination in a lubricator of the reservoir A, the stem B having
branch a, for the support of the said reservoir, and branch b for the support of the
glass tube arranged parallel to the said reservoir, the pipe D connected with the
stem B extending upward and coiled about itself, the end of the coil being
connected with the reservoir, and communicating therewith substantially as
described.
6. The combination in a lubricator of the reservoir A, the stem B, having
branches a. adapted to support the reservoir and branch b adapted to support the
glass tube, the pipe D extending from the stem B to the upper end of the reservoir
with the branch pipe between the said pipe D and the glass tube all substantially
as described.
7. The combination in a lubricator of the reservoir, the steam pipe D adapted
to be connected to the plug H said plug having a passage extending through one
part thereof for the admission of steam, and a second passage for the admission of
oil to the reservoir, all substantially as described.
Dated this thinkinth I of Tun AD 100