Year: 1897

page_text: Date of Application, 15th May, 1897-Accepted, 31st July, 1897.
I, GEORGE LEWIS BRISBIN, of McKeesport, County of Allegheny, Pennsylvania,
U.S.A., Assistant Superintendent of Gas Company, 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:-
The lubricator of this invention is shewn in the accompanying drawing in part
vertical section and connected to a steam pipe leading to the cylinder of a steam
engine.
I is a cylinder of cast metal capable of holding a quantity of lubricant, said
cylinder having an opening at the top fitted with a stopper 2 and serving for filling
in the lubricant, and also a hole 3 at the base fitted with a stopper 4 for cleaning
and draining the device. Surrounding the cylinder 1 is a jacket 5 forming a steam
space 51 connected by tubes 6, 8, to the steam pipe 22 of the steam engine, by means
of which a constant supply of live steam is kept circulating round the outside of
cylinder 1, thereby keeping the lubricant contained therein at a high temperature.
The pipe 8 is fitted with a cock or valve 9 and it extends downwards and is
connected with the base of the gauge glass 10 with an intermediate condensing
reservoir 13, the latter serving to take up the surplus lubricant due to expansion
and having about one fifth the capacity of cylinder 1, will gradually return the
lubricant to the cylinder after the quantity in the same has been somewhat reduced.
The gauge glass is in communication with cylinder 1 through top and bottom
passages 23, 24, and shews the level of the oil and water.
Formed at the opposite side of cylinder 1 is a passage 14 having at the bottom
a drain cock 15, and drain pipe 15* and at the top a screw plug, and also com-
municating with the interior of the cylinder 1 by a passage 141. The passage 14
communicates with a duct 16 leading past a suitable valve 27 to a jet nozzle 18
pointing upwards into a glass tube 17 which through pipe 20 communicates with
the steam pipe 22 of the engine. Between the tube 17 and steam pipe 22 are two
valves, the one 21 to close entirely the passage to the steam pipe and the other 19
to close the passage to the glass tube 17. Arranged between these two valves is a
tube 25 leading direct to the passage 14 and which by the aid of a valve 26 serves
as a bye pass for the lubricant should the tube 17 break or require to be replaced.
It is generally understood that the oil or other lubricant must attain the same
temperature as that of the live steam before it will assimilate with the steam and
reach all points of the steam chest and steam cylinder, and that when the lubricant
is fed into the steam cylinder at a temperature of say, 75° Fahrenheit, from 30
to 60 per cent. of it is carried away through the exhaust outlet before it has time to
attain the same temperature as that of the steam, but with a lubricator such as above
described, the proper temperature is attained before leaving the cylinder or holder 1,
and by the use of the steam jacket the oil may be heated to such a degree that it
will immediately vaporise upon coming in contact with the steam, thus insuring
perfect lubrication from the fact that the heating process developes and holds in
readiness all the lubricating qualities the oil contains.
In use, the lubricant is placed in the cylinder or holder I through the opening at
the top and the stopper screwed tightly in, the valves or cocks 7, 9, 19, 21 and 27

page_text: opened to admit live steam into the annular steam space 5¹ and bring the lubricant
to a high temperature, and steam to the holder 1 through the pipes 6 and 8. This
steam owing to condensation will accumulate in the bottom of the cylinder 1 and
gradually elevate the oil to the passage 14 and eventually to the nozzle 18. The
quantity of the lubricant passing through the latter can be regulated by the
valve 27 to the desired number of drops per minute as seen through the glass
tube 17.
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. The combination of the lubricant holder, a discharge pipe therefor, the gauge
glass connected to the lubricant holder, the condenser connected to and arranged
beneath the gauge glass whereby the lubricant in the holder is permitted to
expand, and means for supplying steam to the condenser, for the purpose specified,
substantially as described and shewn.
2. The combination of the lubricant holder, a discharge pipe therefor, the gauge
glass connected to said lubricant holder, the condenser connected to and arranged
beneath the gauge glass, and means for supplying steam thereto, said lubricant
holder having a surrounding steam jacket, the sight glass, and means for supplying
steam to the steam jacket, substantially as described and shewn.
Dated this 15th day of May 1897.
THOMAS R. SHILLITO,
89 Chancery Lane, London, W.C., Agent for the Applicant.