Improvements in Lubricators.
Year: 1891

page_text: Date of Application, 21st July, 1891-Accepted, 22nd Aug., 1891
COMPLETE SPECIFICATION.
Improvements in Lubricators.
I, CHARLES MARVIN EVEREST of 350 West Avenue, Rochester, State of
New York, United States of America, Manufacturer, 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 relates to certain novel and useful improvements in lubricators
for steam engine cylinders, but more particularly is it designed for use upon
locomotives. The objects of my invention are: first, to provide a lubricator in
which by means of a single cock or valve both the inflow of steam and the outflow
of oil may be controlled; second, to provide means for warming the upper portion
of the oil reservoir so that the oil at the top of said reservoir and therefore
nearest to the educt passages, may be retained in fluid condition even in the coldest
weather; third, to provide independent means for the regulation of each of the
educt passages; and finally and in addition to the foregoing, my invention consists
in the details of construction and combination of co-operating clements hereinafter
to be fully set forth and explained and then recited in the claims.
In order that those skilled in the art to which my invention appertains may
fully understand its construction and operation, I will describe the same in detail,
reference being had to the accompanying drawings which form a part of this
Specification, and in which,
Figure 1, is a front elevation partly in vertical section, showing a lubricator
made in accordance with my invention,
Figure 2, is a sectional elevation from one side of the lubricator, the section
being central and vertical,
Figure 3, is a plan view,
Figure 4, is a horizontal transverse section at the line y-y of Figure 2,
Figure 5, is a transverse section at the line - of Figure 2,
Figure 6, is a view similar to Figure 2, but showing a modified arrangement of
the induct pipe.
Like numerals denote the same parts in each of the figures.
By the numeral 1 is designated a reservoir adapted to contain the supply of
oil and to receive the condense-water after the manner common to lubricators
operating by condensation displacement. The top wall of this reservoir, as
indicated by 2, is of considerable thickness and transversely of this wall is bored a
seat in which is arranged and adapted to turn a cock 3 having an operating
handle 4. The upper wall of the reservoir just referred to is provided with two
vertical educt passages or ways 5, both intersecting the seat and registering with
holes through the cock, and 6 is a transversely extended passage intersecting in
like manner the cock and the seat. The educt passages 5 are designed, as will be
hereinafter explained, to admit of the upward flow of the oil, while the passage 6,
by means of a suitable connection 7, is connected with the boiler or other source
of steam supply and thereby serves to admit steam to the lubricator. It will
therefore be understood that by means of the single cock the ingress of steam to
the lubricator may be modified or entirely shut off, and at the same time the exit
of oil from the reservoir proportionally controlled and varied.
The transverse passage 6 extends horizontally inward to a point beneath a
condenser 8 which is mounted upon the reservoir and has a suitable conduit 9
opening from its bottom end and extending downward to a point near the bottom
of the reservoir. At its inner end said passage 6 has connected therewith a
vertical steam pipe 10 which extends upward through the condenser. The upper
end of the condenser connects with a T-shaped casting 11 which immediately over

page_text: the condenser carries a steam dome 12 connected with said conḍenser and in which
the upper end of the steam pipe 10 terminates.
connects
Referring now to Figure 1, the end of each of the vertical oil educts
with a sight feed glass 13, which latter in turn through a choked orifice 14, see
Figure 4, permits the oil to pass to the discharge pipes 15 which connect with the
cylinders. Between the reservoir and the sight feed glasses are interposed
regulating valves 16 by means of which the feed of oil may be varied as desired.
In the casting heretofore referred to are equalizing tubes 17 which extend from
the steam dome outward through said casting and communicate with the oil exit
passages so as to create a uniform pressure at each end of the lubricator.
In the operation of my invention steam is taken in through the connection 7,
and the oil, as heretofore explained, passes from the reservoir outward through the
passages 15. In its entrance through the thickened upper wall of the reservoir
the steam so heats said wall as to impart a considerable degree of warmth to the
oil within the reservoir, and particularly to such portion of said oil as is nearest
to the educt passages that connect with the sight feed tubes. This, while warming
the oil sufficiently to cause it to flow freely, does not to the same degree heat the
stratum of water at the bottom of the reservoir and thereby the two fluids do not
tend to saponify and mix. From the passage in the top wall of the reservoir the
steam passes upward through the pipe 10 and is discharged into the steam dome
whence it freely enters the condenser, and its pressure likewise is exerted through
the equalizing tubes at the discharge passages. The condense-water from the
condenser passes freely downward through the tube 9 to the bottom of the reservoir
thereby forcing an equal bulk of oil upward through the sight feed tubes.
In Figure 6 I have shown a slightly modified construction in which the pipe 10
is displaced by means of a pipe 18 which does not pass through the condenser,
but extends upwardly from the reservoir outside of said condenser and discharges
into the latter at any convenient point, the precise construction in this regard
being immaterial. The advantage gained by this construction is that the condenser
is kept at a somewhat lower temperature than in the construction shown at
Figure 2.
From an examination of the drawings, and particularly Figures 1 and 3, it will
be observed that while I have embodied in this lubricator a condenser and two
separate and disconnected sight feed glasses, each providing for an independent
feed of oil to the cylinder, I have arranged said condenser and sight feed glasses
in the form of a triangle on the top of the reservoir. This conduces greatly to
strength and economy of space and furthermore the two sight feed glasses are
side by side so that their rate of feed is readily apparent for purposes of com-
parison as is highly desirable, for instance, in adjusting the regulating valve 16.
Having thus 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. In a lubricator having a condenser, the combination with an induct passage
for the live steam, and one or more educt passages for the outflow of oil, of a cock
having a plurality of ways, a cock adapted to control both the steam and oil
passages, substantially as set forth.
2. In a lubricator, the combination with the reservoir, the condenser, and a
plural cock seated in the top of said reservoir, of a steam induct passage entering
the top of said reservoir, and oil educt passages extending upward at right angles
to the steam passages, all of said passages controlled by said cock, substantially as
described.
3. In a lubricator, the combination with the reservoir, and a condenser and
suitable sight feed glasses mounted upon said reservoir, of a live steam passage
entering through the top wall of said reservoir and thence discharging into the
condenser, whereby warmth is imparted to said reservoir by the steam prior to
the condensation of the latter.

page_text: 4. In a lubricator, the oil-holding reservoir having a thickened top wall provided
with oil educt passages, and a steam induct passage, in combination with a plural
cock seated in said thickened wall and adapted to control the inflowing steam and
the outflowing oil, a condenser mounted upon the reservoir and connected with
the steam induct passage, a pair of sight feed glasses mounted upon the reservoir
and each connected with one of the oil passages, and supplemental regulating
cocks as 16, interposed between the reservoir and the sight feed glasses, sub-
stantially as described.
5. In a lubricator, the combination with the reservoir and a condenser, and a
pair of sight feed glasses mounted upon said reservoir, said reservoir having a
thickened top wall, of the live steam passage entering the top wall of said
reservoir and extending therethrough between the oil educt passages, the pipe or
tube whereby said steam is conveyed upward and discharged into the condenser,
and a transversely arranged shut-off cock seated in the thickened top wall of
the reservoir and adapted to control both the steam and oil, substantially as
described.
6. In a lubricator, the combination with the reservoir and a condenser, and a
pair of sight feed glasses mounted upon said reservoir, said reservoir having a
thickened top wall, of the live steam passage entering the top wall of said reservoir
and extending therethrough between the oil educt passages, the pipe or tube
whereby said steam is conveyed upward and discharged into the condenser, &
transversely arranged shut-off cock seated in the thickened top wall of the
reservoir and adapted to cut off the flow of the oil and the steam, and regulating
cocks 16 entering the oil passages above the reservoir, substantially as described.
Dated this 21st day of July 1891.
HUGHES, ELI & HUGHES,
76, Chancery Lane, London, W.C., Agents for the Applicant.