Year: 1888

page_text: Date of Application, 25th Jan., 1888
Complete Specification Left, 25th Oct., 1888
Complete Specification Accepted, 30th Nov.. 1888
We, WALTER GRIMES of Ivy Bank, Eccles, in the County of Lancaster, Salesman,
and CHARLES CHEERS WAKEFIELD of 51 Russian Drive, Liverpool, in the said County,
Manager, do hereby declare the nature of this invention to be as follows:-
This invention has for its object a series of improvements in sight-feed lubricators
so as to obviate disadvantages hitherto existing and enable the apparatus to be made
more compact and efficient, especially in cold weather, and where exposed to wind and
rain as on a locomotive.
The reservoir of oil is made as ordinarily and is screwed or otherwise attached
in the usual manner on to any convenient position and is filled through the glass gauge
as usual.
The passage for the water of the condensed steam, and the passage for the overflow
oil are both bored through the same block parallel to each other and are both opened
and closed by the same cock, the conical plug of the cock having two elongated
transverse holes, one for each passage.
The condenser instead of being a coil of pipes extending above the apparatus is a
simple bulb immediately above the aforesaid double cock and a small passage from the
top of this bulb leads into a small dome above, the steam from the boiler enters
this passage between the dome and the condenser. A stand-up pipe in the dome
takes steam from the dome to the injecting apparatus. The oil that is passed
through the double-cock passes up by a branch through the sight-glass to the injecting
apparatus.
The injecting apparatus preferably consists of a barrel closed at one end by a plug,
which plug has a continuation turned smooth either cylinderical or conical and fitting
the said barrel when the plug is screwed down. Above and below the turned part of
the barrel we widen out the latter into an annulus and to one of these annuli the oil is
brought, to the other steam is brought from the dome, and from these two annuli
passages are brought to a nozzle and they are arranged in such way that the steam

page_text: hall in ject the oil from the nozzle forward into the steam-chest or steam-pipe of the
engine. A second plug closes the exit of the nozzle when required thus closing both
passages at the same time.
In conclusion, we do not confine ourselves to the exact arrangement which we have
described, this being merely a description of our experimental apparatus. It can be
varied among other ways as follows-Instead of the two passages from the reservoir
being closed by one cock in the manner described, two cocks connected together
rigidly or by mechanism can be used, and as regards the injector the steam and oil can
be brought in any convenient arrangement, such for instance, as through a double
cock to a nozzle for injection into the steam chest.
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool,
Agents for the Applicants.

page_text: Improvements in Sight Feed Lubricators for Steam Engines.
We, WALTER GRIMES of Ivy Bank, Eccles, in the County of Lancaster, Salesman,
and CHARLES CHEERS WAKEFIELD of 51, Russian Drive, Liverpool, in the said County,
Manager, 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 for its object a series of improvements in sight feed lubricators
so as to obviate disadvantages hitherto existing, and to enable the apparatus to be
made more compact and efficient, especially in cold weather, and where exposed to
wind and rain as on a locomotive.
One convenient way in which our invention may be carried into effect is shown in
the accompanying drawings, in which,
Figure 1 is a vertical section of the lubricator on line xx, Figure 2, and
Figure 2 is an elevation of same, partly in section, and taken at right angles to
Figure 1.
The oil reservoir A is of the ordinary construction, and is screwed or otherwise
attached to a support as at a in the usual manner, and in any convenient position,
being filled through the glass gauge A¹ as usual, by means of the screw down
valve a¹, Figure 2. The reservoir A is provided with a drain valve A² and with
a vent plug A³.
The passage B for the water of the condensed steam, and the passage (for the oil,
are both bored through the same block D parallel to each other and are both opened
and closed by the same cock E, the conical plug of the cock having two transverse
holes bc corresponding respectively to the passages B and C. The passage B
communicates at its upper end with the condenser, and at its lower end by a dip pipe 6¹
with the lower part of the reservoir A.
The condenser instead of being a coil of pipes extending above the apparatus, is a
simple hollow bulb F placed immediately above the aforesaid double cock E. G is a
block of any suitable form attached to the top of the bulb. A small passage H in the
block G leads from the top of the bulb into a small dome J above the block. The
steam from the boiler enters this passage between the dome and the condenser by
means of a passage K communicating with a steam pipe K¹. A stand pipe H' in the
dome takes the steam from the latter to an annular or circular chamber I forming
part of the injecting apparatus by means of a passage H². The dome and stand
pipe device serve as a steam trap to prevent condensed steam from being carried along
to the injection orifice.
The oil passes up the passage C aforesaid, through the double cock E along a
branch passage C and through the sight glass C to the chamber L of the injecting
apparatus.
The injecting apparatus preferably consists of a barrel or chamber L closed at one
end by a plug L'. This plug may have a continuation turned smooth either

page_text: cylindrical or conical so as to fit the said barrel or chamber (or the central
orifice M thereof), when the plug is screwed down. Or the plug may be a fixture,
and may be provided with a separate plug or screw down valve N as shown.
The oil and the steam are both brought into the annular chamber L by the
passages PH2 respectively. Or separate annular chambers may be provided for the
steam and oil, and suitable passages may lead from them to the injecting nozzle or
orifice M aforesaid. The flow through the injection orifice M. is controlled by the
valve N and the said orifice communicates by a passage R and pipe R' with the steam
chest or other part of the engine.
The mode of action is as follows:-
The double cock E being opened, part of the steam entering at K₁ passes into the
condenser F where some of it condenses, and finds its way by the passages B and b
and the pipe to the lower end of the oil reservoir, and acts as a medium for
conveying the pressure of the steam to the lower surface of the oil. Another part
of the steam passes into the chamber L through the dome and stand pipe, and there
meets with the oil which has been forced up through the passages c C and C¹ and
through the sight glass C². On opening the valve N, the steam rushes through the
orifice M and along the pipe R' carrying the oil with it.
In conclusion, we do not confine ourselves to the exact arrangement which we
have described, this being merely a description of our apparatus in the form which
we at present prefer. It can be varied among other ways as follows: Instead of
the two passage B from the reservoir being closed by one cock in the manner
described, two cocks connected together rigidly or by mechanism can be used, and
as regards the injector, the steam and oil can be brought in by any convenient
arrangement, such for instance as through a double cock to the nozzle or orifice M
for injection into the steam chest or other part.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
1. In combination with a sight feed lubricating apparatus, an injection orifice or
nozzle to or into which there is simultaneously led a supply of steam from the boiler
or other source, and a given regulated quantity of lubricant from the sight tube,
and through which it is injected into the part to be lubricated, substantially as
set forth.
2. In combination with a sight feed lubricating apparatus, a steam trap device
such as JH H¹, substantially as and for the purpose described.
3. The herein described improvements in sight feed lubricators, whereby the
pressure inlet and the oil outlet of the oil reservoir are both controlled by one cock or
its equivalent, the steam is led to the injection orifice in a comparatively dry state,
and the whole apparatus is rendered simpler and more compact, substantially as
set forth.
4. The sight feed lubricating apparatus as a whole, constructed substantially as
herein shown and described.