An Improved Lubricator.
Year: 1886

page_text: Date of Application, 28th Dec., 1886.
Complete Left, 30th June, 1887.
Complete Accepted, 2nd Aug., 1887
An Improved Lubricator.
1, JOSEF WILDEMANN of Schiffbauerdamm, Berlin in the German Empire, Merchant,
to be
do hereby declare the nature of said invention for "AN IMPROVED LUBRICATOR
as follows:
This invention has reference to a lubricator which operates automatically by the
agency of steam and is mainly adapted for use on steam engines, after the shutting off
of steam from which it still continues to operate for some time. It is so designed that
the lubricant issues from the same accompanied by condensed steam. It consists of a
container into which projects a portion of a body provided with two channels or
passages one straight to which is fitted a valve and one winding; the former being
for the passage of steam into the container, and the latter for the passage of the
lubricant and condensed steam therefrom, the area of such passage being regulated by
means of a screw rod. When screwed into a steam engine cylinder for the purpose
of lubrication, the steam therein lifts the valve in the straight passage passes into the
container and presses upon the lubricant so as to force it through the winding passage
into the steam cylinder. The small quantity of condensed steam passes with the
lubricant out of the container. After steam has been cut off from the cylinder there
will for some time be a sufficient pressure in the container to keep the lubricator in
operation, which would be an advantage especially in the case of locomotives.
Dated this 27th day of December 1886.
CAPITAINE & VON HERTLING,
89, Chancery Lane, London, W.C.,
Agents for the Applicant.

page_text: "
I, JOSEF WILDEMANN of Schiffbauerdamm Berlin in the German Empire, Merchant,
do hereby declare the nature of said invention for "AN IMPROVED LUBRICATOR 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 reference to an apparatus for automatically delivering oil there-
from to the part to be lubricated, for instance, a steam engine cylinder. Whilst in
lubricators hitherto used the steam entering the oil container always passes by the
same inlet as serves for the oil outlet and thereby at varying pressures delivers
varying quantities thereof, the lubricator of this invention is provided with a special
outlet for the oil placed lower down than the mouth of the steam passage, secondly,
the passages are so arranged that, the water of condensation at once flows away with
the oil, and that, particles of dirt may not get to the regulating screw, and thirdly the
opening and closing of the oil outlet passage is effected automatically by the difference
of expansion between a steel spindle and a neck in which it works made of copper or
other metal suitable for the purpose.
Referring to the accompanying sheet of drawings:
Fig. 1 is partly a vertical section and partly an elevation of the lubricator of this
invention. Fig. 2 is a horizontal section through line X Y of Fig. 1. It consists of
an oil container A; stopper screw down valve a; stem B having passages b, c ; self
acting regulating screw and plain spindle d; valve 61 with two scatings; it admits
steam to the container A. The regulating screw d is so fitted that when the container
is of the normal outside temperature-the lubricator not working-the point of the
plain spindle of d will more or less or wholly close the passage c. When the
lubricator is heated by the entrance of steam the neck d'expands to a greater extent
than the steel spindle d thus bringing about an automatic opening of the passage c.
The spindle and neck are made longer or shorter according to the quantity of the
lubricant to be delivered. The principle of the automatic closing and opening here
coming into operation is similar to that used for the discharge of waters of
condensation. To reach the part to be lubricated the oil must pass first upwards and
then downwards in the passage c which at the same time forms a syphon. This
ascent of the oil has the advantage that the particles of dirt frequently present therein
remain behind at the bottom of the vessel by reason of their weight, the lighter dirt
particles swimming on the surface and not entering the ascending passage, thus the
fine opening between the point of the spindle d and its seating is kept free.
As compared with ordinary apparatus of the kind in which the oil is passed through
fine metallic gauze, the employment of a
syphon passage
is of the greatest advantage,
because after being at work for some time the gauze becomes stopped up with dirt
which especially in winter-hardens upon cooling and prevents a sure working of
the apparatus. The valve b¹ allows to the steam a free passage into but not out of
the container. When the valve b' is moved against its upper seating the oil

page_text: container may be charged even during the working of the lubricator or engine
lubricated. The small quantity of steam coming through the opening between the
point of spindled and its seating into the container A does not in any way
interfere with this being done. When the lubricator is working the valve b¹ is
pressed against its upper seating 62, still however at the same time so much steam
enters B-especially on commencing to work if the container is charged-that a
balance of pressure is effected, a slight leakage of the valve favouring the same. To
prevent the valve during working reaching the seating and too soon closing the
passage to the steam, it may have an upper spindle e to strike against the screw down
valve a the length to be such that it will strike when the valve is midway between
the two seatings, the steam then having free entrance to the container A. Upon
unscrewing the valve a to charge the container, valve 6' will rise against its upper
seating. The steam then still on the surface and that coming past a will now issue
from, without obstructing the charging of the container A. The opening past dis
only so large as to allow from ten to fifteen drops of oil to pass per minute with
an excess pressure of several atmospheres in the container A. In cases where the
engine to be lubricated is often stopped and also run a length of time or long
distances with the steam cut off as with locomotives, the piston might get heated
unless a small quantity of oil could flow past d and its seating; much oil cannot
pass, and this is rendered practicable by the application of the separate steam inlet
and oil outlet of this invention. This lubricator therefore operates quite automatically,
the oil supply to the part to be lubricated ceasing when the engine is put out of
work, further, the choking of the small oil outlet is avoided.
Having now particularly described and ascertained the nature of my said invention
and in what manner the same is to be performed I declare that what I claim is :
1. In a lubricator provided with separate steam and oil passages; a syphon
shaped passage c for the discharge of the oil and water of condensation in com-
bination with steam passage b, valve for the periodical admission of steam into the
oil container and preventing the withdrawal of the oil, the mouth of the oil outlet
being placed lower down than that of the steam passage for the purpose of obtaining
an excess weight of the oil column in the syphon passage in the case of accidental
entrance of oil into the steam passage substantially as described and shewn.
2. In a lubricator of the kind referred to, the combination of the valve b', spindle e
and seating, for enabling the container to be charged whilst working substantially as
described and shewn.
1: 20th love of T 1007