Year: 1899

page_text: Date of Application, 28th Jan., 1899-Accepted, 4th Mar., 1899
I, ALFRED LUTZE, of No. 58, Linden Strasse, Halle on the Saale, Germany,
Manufacturer, do hereby declare the nature of my said invention and in what
manner the same is to be performed, to be particularly described and ascertained
in and by the following statement:—
The present invention relates to lubricators and consists in certain improve-
ments in the construction of the same by means of which the fitting together
of the parts is facilitated whilst the operation of the lubricator is rendered more
effective.
In order to render the present specification more easily intelligible reference is
had to the accompanying drawing in which similar letters of reference denote
similar parts throughout the several views:
Fig. 1 is a vertical section through the lubricator showing the valve closed,
Fig. 2 a similar section with the valve raised and a sleeve indicated in dotted
lines which may be screwed on to the lower end or stem of the lubricator, by
means of which the latter may be simply slid into position on the machine with-
out having the screw threaded end engage the orifice. Fig. 3 is a plan of
Fig. 1 and Fig. 4 a detail. Fig. 5 is a part sectional elevation showing the
valve fitted tightly on to the stem but also adjustable thereon, the valve being
closed, Fig. 6 is a similar elevation partly in section with the valve open. Fig. 7
is a vertical section showing a valve stem having rings turned in the lower end
so that sections of the latter may be clipped off if it is found to be too long.
Figs. 8 and 9 show a valve stem with removeable lower sections so that the length
of the same below the valve may be shortened or lengthened at will, Fig. 9* is
a detail view of such section and Fig. 10 a vertical section of a lubricator in
which the stem extends through the oil outlet opening.
Referring first to Figures 1 to 4:--The oil vessel A is stamped from sheet
metal, has a pan-like bottom, with a downwardly extending flange a which forms
a conical throat tapering towards the lower end. The fitting 13 forms the holder.
for the vessel A, and is advantageously hexagonal on the exterior. This fitting
is provided with a boring b which is conically enlarged at the top forming the
interior annular shoulder d and the upper part of the flare is again enlarged to
form a second shoulder c, the depth of which is not quite as great as the thickness
of the metal of the throat a. A cone C having central boring and conical valve
seat at the top, fits properly into the flared part of the boring of the fitting B
and the throat of the vessel A fits approximately into the upper flared part,
the lower edge of the throat closing down on to the shoulder c. When the
ecnical plug C is driven properly home, the vessel A will be securely fastened
to the fitting B. The vessel A is fitted with a cover D having its downwardly
extending rim made of resilient material and cut out as at I)' so as to spring close

page_text: on to the cylindrical sides of the vessel A. The valve stem is provided with
a screw thread at its lower end and the conical valve f is interiorily screw threaded
to fit and is adjustable on the said stem. The latter projects downwardly through
the valve a certain distance into the oil outlet opening and is suitably guided
in the cover D of the vessel.
In
but
The valve stem, and valve may be periodically raised by hand or automatically
from any suitable part of the machine and when raised a certain quantity of oil
passes through the outlet to the machine for lubricating purposes. When the
valve is closed the stem g acts to force a certain quantity of the lubricating
material out, according to the length to which the said stem extends below the
valve, the oil below the stem remaining to be consumed gradually as soon as
the valve is properly down on its seat. As indicated at Fig. 2 the sleeve h (Fig. 4)
may be screwed to the lower end of the valve support B said sleeve having a smooth
stem at its lower end which may be fitted into the orifice on the machine and in
which it should fit tightly, in which case the screw thread is not necessary.
Figures 5 and 6 the valve f is simply fitted tightly on to the smooth stem
may be adjusted thereon if desired. In Figure 6 this valve is shown open. In
Figure 7 the lower end of the valve stem g is provided with a series of incisions,
so that the same may be shortened according to requirement by clipping off
one or more of the lengths indicated, in this case the valve fis-not adjustable
on the stem and if the stem has been shortened too much below the valve a new
stem must be inserted. In Figure 8 the lower end of the valve stem is provided
with removeable sections as shown in detail in Figure 9* said sections being
provided with an interiorily threaded hole on one side and a threaded stem on
the other by means of which they may be screwed together and thus the lower
end of the valve stem lengthened or shortened according to requirement. Fig. 9
shows the same construction with the valve in its raised or open position.
In Figure 10 a plain stem is shown which extends downwardly through the
outlet and rests on the part of the machinery to be lubricated. The vibration
of the machine keeps the stem g in a constant state of vibration so that a constant
gradual oil feed takes place. In addition to this the stem may be raised and
lowered again occasionally.
The apparatuses described with reference to Figures 1 to 9 are suited for
periodical lubrication whilst the device illustrated in Figure 10 is intended for
continual lubrication.
Having now particularly described and ascertained the nature of my said in-
vention and in what manner the same is to be performed I declare that what I
ciaim is:
1 In a lubricating apparatus the combination of an oil vessel stamped from
sheet metal, having a downwardly extending tapering throat a, a fitting B having
boring and conically flared at its upper end, said flared part having two annular
shoulders therein c and d and a conical plug C having boring to correspond
with boring B said plug being adapted to be driven into the flare of the fitting
and to clamp the throat of the vessel therein substantially as described and for the
purpose specified.
2: In a lubricator of the class covered by Claim 1 the combination of a
valve stem 9 passing through the oil vessel cover and extending down into the
oil outlet opening, said stem being capable of vertical reciprocal movement by
hand or automatically and a valve thereon to close the oil outlet, said stem
being exended downwardly below the said valve for the purpose of forcing a
certain quantity of the oil out of the outlet channel, the valve being either adjust-
able on the said stem or the end of the stem adjustable in length by means of
removeable sections substantially as described.
3; A modified form of the lubricator covered by Claim 2 which consists in
omitting the valve and allowing the stem to extend throughout the length of the
outlet opening or channel and rest with its lower end of the object to be lubricated,
so that the vibration of the machine may be transmitted to the said stem and thus

page_text: allow the oil to flow gradually and unintermittently through the outlet, in which
case the effect may be increased by occasionally raising and lowering the said
stem substantially as described.
4: The lubricating device substantially as herein before described and illus-
trated in the 'accompanying drawings.
Dated this 28th day of January 1899.
REGINALD W. BARKER,
Applicant's Agent, 56, Ludgate Hill, London, E.C.