Apparatus for Feeding Lubricating Oil Dropwise for Use in connection with Motors.
Year: 1898

page_text: Date of Application, 16th Sept., 1898-Accepted, 6th May, 1899
-רשענ-VVL
Apparatus for Feeding Lubricating Oil Dropwise for Use in
connection with Motors.
I, ALFRED LUTZE, of 10, Alte Promenade, Halle-on-the-Saale, Germany, Manu-
facturer, 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 consists of an apparatus for feeding lubricating oil drop-
wise, the said apparatus being more especially constructed for use in connection
with motors driven by explosive force. The apparatus is connected up to the
cylinder of such motor in such manner as to cause a slight air pressure to pass
to the interior or oil receptacle at each backward or forward stroke of the motor.
And 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 sectional elevation of the device, Fig. 2 a plan and Fig. 3
a cross section through the neck or stem on line M--M Fig. 1 showing the scale.
The oil receiver A is provided with a central stem as usual, at the lower part
of which an outlet opening a extends slantingly downwards meeting a vertical
channel, which opens into a chamber g formed in the end of the stem of the
receiver. Into this chamber is screwed the upper end of a stem having an upper
pointed end f adapted to enter the lower end of the channel a and if forced far
enough into the same to entirely stop the outlet. The stem d is provided with a
central boring c which opens laterally into the chamber g. The lower part of the
stem d is screwed into the fitting 6 which is stationary and provided at its upper
surface with a scale h adapted to indicate how far the cone f is in the outlet
channel a. A pointer extending from the neck, to which it may be suitably
attached co-operates with the said scale h. If the stem of the receptacle, forming
the chamber is turned on the stem the cone f will be extended further into
or out of the channel a according to the direction of rotation, as will be evident.
The inlet orifice k to the oil reservoir is closed by a disc having suitable packing
and a cross bar m which is clamped down on to the cover by means of suitable
clamping serew on the central spindle of the apparatus, rendering the reservoir
air-tight.
r
If now the device is placed into communication with one end of the cylinder
of an engine or motor as specified at each stroke of the piston a small quantity
of air will be forced along and a and into the interior of the reservoir. It will
there rise through the oil in the form of bubbles and create a slight increase in
the density of the air above the oil, which tends to keep the pressure of the oil
on the bottom of the receptacle and consequently against the outlet, independently
of the amount and weight of the oil in the reservoir. Thus when once the open-
ing a has been regulated by the cone f, the oil will always drop out of the
apparatus dropwise and evenly whatever quantity may be present in the reservoir,

page_text: owing to the compensating influence of the air density or pressure above the upper
surface of the oil.
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 Apparatus for feeding lubricating oil dropwise, for use in connection with
motors, characterised by an air tightly closed oil reservoir (A) having an oil outlet a
attached to a stem d with through passage, and upper cone (f) to enter said outlet a,
and close or partially close the same when rotated on a scale (h) in the manner and
for the purpose substantially as described.
2: In an apparatus as above claimed the combination of an open sleeve (b)
at the bottom of the stem (7) by means of which the device is connected to the
cylinder of a motor in such a manner as to cause a weak current of air to enter
the reservoir (A) when the channels ca are open, for the purpose of creating
a slight density of the air above the liquid and effecting an even dropwise feed
of the same substantially as described.
3: The device for feeding lubricating oil dropwise constructed substantially
as described and illustrated in the accompanying drawings and for the purpose
specified.
Dated this 13th day of Santambar 1900
J. B. FLEURET,
5, Hatton Garden, Holborn Circus, London, E.C., Agent for the Applicant.