IMPROVEMENTS IN SIGHT-FEED LUBRICATORS
Year: 1883

page_text: LETTERS PATENT to William Anton Gottlieb Schönheyder of St Stephen's
Avenue Shepherd's Bush in the County of Middlesex for an Invention of
"IMPROVEMENTS IN SIGHT-FEED LUBRICATORS"
PROVISIONAL SPECIFICATION left by the said William Anton Gottlieb
Schönheyder at the Office of the Commissioners of Patents on the
5th September 1883.
WILLIAM ANTON GOTTLIEB SCHÖNHEYDER of St Stephen's Avenue Shepherd's
Bush in the County of Middlesex "IMPROVEMENTS IN SIGHT-FEED LUBRICATORS"
"
In constructing lubricators for supplying oil or other suitable lubricant to slide
valves, cylinders or other parts of engines or machines, it is often usual to cause
the oil to pass drop by drop through water in a glass tube or transparent vessel, so
that the number of drops fed in a given time can be observed. The oil is forced
out of its receptacle by a column of water, which is constantly replensished by
condensed steam. In apparatus of this kind, when the receptacle is emptied of
oil and filled with water, this water has to be blown off and fresh oil has to be fed
to the receptacle from which the air has to be discharged; also from time to time
the glass has to be cleared by "blowing through," and when the engine stops, the
flow of oil has to be arrested. Generally also, the quantity of oil supplied must be
capable of minute regulation. For these purposes, separate taps or valves with
numerous joints and connections are ordinarily employed, and several external
pipes with unions are arranged so as to lead the fluids in the desired directions.
Now my invention relates to a construction of lubricator whereby I avoid all these
external pipes, valves or taps and connections, and simplify and cheapen the
construction. I make it of cylindrical form with a central glass, and with only
two connecting pipes, one for conveying the condensed steam which expels the oil,
and the other for conducting the oil away to the parts that are to be lubricated.
Within the cylindrical body of the apparatus. I fit an elongated plug like that of a
stopcock, and provide ports and passages so arranged that by turning this plug
into various positions the necessary communications are effected. For turning the
plug I provide an external handle or wheel on which or on a dial are marked
divisions for its different positions, as for example FEED, SHUT, CLEAN,
DRAIN, FILL or the like.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said William Anton Gottlieb Schönheyder in the Patent Office on the
8rd March 1884.
WILLIAM ANTON GOTTLIEB SCHÖNHEYDER of St. Stephen's Avenue, Shepherd's
Bush in the county of Middlesex. “IMPROVEMENTS IN SIGHT-FEED LUBRICATORS
"
In constructing lubricators for supplying oil or other suitable lubricant to slide
valves, cylinders, or other parts of engines or machines, it is often usual to cause
the oil to pass drop by drop through water in a glass tube or transparent vessel,
so that the number of drops fed in a given time can be observed. The oil is forced
out of its receptacle by à column of water, which is constantly replenished by
condensed steam. In apparatus of this kind, when the receptacle is emptied of oil
and filled with water, this water has to be blown off and fresh oil has to be feil to
the receptacle from which the air has to be discharged; also, from time to time,
the glass has to be cleared by blowing through, and when the engine stops, the
flow of oil has to be arrested. Generally also, the quantity of oil supplied must be
capable of minute regulation. For these purposes, separate taps or valves with
numerous joints and connections are ordinarily employed, and several external
pipes with unions are arranged so as to lead the fluids in the desired directions.
Now, my invention relates to a construction of lubricator whereby I avoid all these
external pipes, valves or taps and connections, and simplify and, cheapen the
construction, na I will describe referring to the accompanying drawings. Fig. 1 is
a.vertical longitudinal section of a lubricator according to my invention, fig. 2 is a
side view partly in section, fig. 3 is a view of the hand wheel, and figs 4, 5, 6, 7
and 8 are transverse sections at V, W, X, Y, Z respectively, the planes of the
sections being in some cases interrupted so that the figure may follow the lines of
the channels or passages through which the sections are taken. A is the receptacle
for oil, a is the screw plug which closes the bole for charging or emptying the
joint being made tight by a soft metal ring a forced against a projecting V-rib. To
prevent the plug a from being entirely withdrawn and so lost or mislaid, it has
screwed on the end of its stem a boss a' which cannot pass through the hole in a
lug a³, and the boss a³ is made to screw into this hole so as to hold the plug a up
from its seat as indicated at at, while the receptacle. A is being filled or emptied.
The boss a² is introduced through a hole which is closed by the plug-a, which is
pointed to serve as an index. Within A and cast in one with it is the shell B in
which is fitted the taper plug C that can be turned by the external hand wheel D,
the plug Chaving a tubular stem o which passes through packing c¹. From the
body A projects a boss E which is cut away at the sides, so as to expose a glass
tubee which is made tight in its seat by packings el c', an intermediate frame o²
open at the sides and a tubular washer e and pressing screw e³, covered by a screw
cape At F there is a connection for admitting water; and at G a connection for
emitting oil. When the parts are in the positions shewn in the figures, the word
FEED at the wheel being then at the index, the apparatus is in condition for
supplying oil to the engine. Water enters at F passes along the channel of through
the port f, passage f in the plug, port f³, and down the passage f* to the bottom
of the receptacle A, while oil from A enters by the port g, the passage g' of the
plug, passes along the reduced passage and nozzle g³, through the glass 6 and out
at G. By turning a little the hand wheel D, the passage g can be so adjusted that
the oil is made to issue from ga drop by drop, as may be seen through the glass.
When the oil is exhausted, the receptacle is emptied of water by turning the hand
wheel half round, bringing the word DRAIN to the index. This closes f¹ and g
and opens communication of f³ to c, and then, on unscrewing the plug a, the water

page_text: flows out by the passage c.
When the flow of water ceases, the handwheel is
turned to bring the word FILL to the index. By this, all the ports in B are
closed, and the receptacle A can then be filled with oil. When it is desired to
wash out the glass e, or fill it with water, the hand wheel is turned to bring WATER
to the index. By this, a port H, (shewn by dotted lines in fig. 1) is put in
communication with f¹ and so with the water supply. When the hand wheel is in
any position intermediate to those corresponding with the marks upon it, all the
ports of B are closed.
Obviously, the plug a might be dispensed with by making the supply orifice
communicate with a port in B and a passage in the plug C, an outlet for air being
also opened by a passage in the plug and a port leading to an external orifice.
The receptacle A may be provided with a gauge glass to shew the level of its
contents.
Having thus described the nature of my invention and in what manner the same
is to be performed, I claim: -
The construction of Sight feed lubricators, wherein the several passages are
governed by a single plug that can be turned by hand to various positions indicated
on a hand wheel, substantially as herein described.
In Witness whereof I the said William Anton Gottlieb Schönheyder have
hereunto set my hand and seal this twenty eighth day of February in the year of
our Lord, one thousand eight hundred and eighty-four
W. A. G. SCHÖNHEYDER. (