IM- PROVEMENTS IN GREASE CUPS
Year: 1866

page_text: LETTERS PATENT to William Clark, of 53, Chancery Lane, in the County
of Middlesex, Engineer and Patent Agent, for the Invention of "IM-
PROVEMENTS IN GREASE CUPS."-A communication from abroad by
Gebhard Hagenmeyer, of Big River, Mendocino County, Stato of
California, United States of America.
Sealed the 28th September 1866, and dated the 12th July 1866.
PROVISIONAL SPECIFICATION left by the said William Clark at the
Office of the Commissioners of Patents, with his l'etition, on the
12th July 1866.
I, WILLIAM CLARK, of 53, Chancery Lane, in the County of Middlesex,
Engineer and Patent Agent, do hereby declare the nature of the said Invention
for "IMPROVEMENTS IN GREASE CUPS," to be as follows.-
This Invention relates to an oil or grease cup which is provided with two
cone valves, the stems of which are connected so that they are compelled to
turn together, but free to move a short distance towards or from each other.
These valves close into corresponding seats, and from their peripheries project
studs which work against circular, inclined, or spiral planes surrounding the
seats, and arranged so that the highest part of one of these spiral planes is in
line with the lowest part of the other in such a manner that when the valves
are subjected to the action of a suitable spring, which has a tendency to keep

page_text: the same closed, by turning the valves one will open when the other closes,
and vice versa, and the globe of the grease cup is alternately brought in
connection with the supply cup and then with the steam chest or other part
to be lubricated. This grease cup is constructed in the usual form or shape
and composed of the supply cup at top and a globe or close receiver below
which is fitted into the socket that is intended to screw into the part to be
lubricated This grease cup is provided with two valves; the upper end
of the stem of the lower valve being fitted into a socket in the bottom end
of the upper valve, while a cross pin forms the means of communicating
torsion between the two valves. This pin passes through the socket of the
upper valve and through a slot in the stem of the lower valve, so that the two
valves are compelled to turn together, but are free to rise and fall a short
distance, one independent of the other. The stem of the upper valve extends
up through the supply cup and bears a handle, by means of which the valves
can be turned in either direction, a spring on the stem of the upper valve has
a tendency to force that valve up, the lower valve being closed by the pressure
of the steam. The upper valve closes into a seat on the bottom end of the
screw shank of the supply cup, and the upper valve into a seat at the bottom
end of the screw shank of the globe or close receiver, from the bottom edges
of these seats project inclined or spiral planes, while pins projecting from the
peripheries of the valves bear against these spiral planes, said spiral planes
are so situated that the highest part of the one spiral plane is opposite the
lowest part of the other, and vice versa. By making the inclined planes
inclined in both directions the handles can be turned fieely in either direction.
The operation is as follows:-When the handle is turned either way one
half turn the pin on the lower valve will first descend its spiral plane, when
the pressure of the steam closes the lower valve, cutting off the communication
between the reservoir and the steam chest. The pin on the upper valve will
then ascend its spiral plane, forcing the upper valve off from its seat and
opening communication between the supply cup and the globe. When the
globe is full the handle is turned again one half turn either way, the pin on
the upper valve first descends its spiral frame, allowing the upper valve to
close by the action of the spring on its stem before mentioned; the pin on the
lower valve then ascends its spiral plane forcing the lower valve off from its
seat and opening communication between the globe and the steam chest or
other pait to be lubricated. A suitable vent valve on the side of the globe
permits the steam from the interior of the said globe to escape when the
lower valve is closed and the upper valve opened; this vent valve is made
to open and close automatically, or it can be operated by hand. It must

page_text: be remarked that the connection beween the upper and lower valves can be
effected by screw threads or other means, and I do not wish to confine myself
to the precise means herein described.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said William Clark in the Great Seal Patent Office on the
9th January 1867.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
CLARK, of 53, Chancery Lane, in the County of Middlesex, Engineer and
Patent Agent, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twelfth day of July, in the year of our Lord
One thousand eight hundred and sixty-six, in the thirtieth year of Her
reign, did, for Herself, Her heirs and successois, give and giant unto
me, the said William Clark, Her special licence that I, the said William
Clark, my executors, administrators, and assigns, or such others as I, the
said William Clark, my executors, administrators, and assigns, should at any
time agree with, and no others, from time to time and at all times there-
after during the term therein expressed, should and lawfully might make,
use, exercise, and vend, within the United Kingdom of Great Britain and
Ireland, the Channel Islands, and Isle of Man, an Invention for "IMPROVE-
MENTS IN GREASE CUPS," a communication to me from abroad by Gebhard
Hagenmeyer, of Big River, Mendocino County, State of California, United
States of America, upon the condition (amongst others) that I, the said
William Clark, my executors or administrators, by an instrument in writing
under my, or their, or one of their hands and seals, should particularly
describe and ascertain the nature of the said Invention, and in what manner
the same was to be performed, and cause the same to be filed in the Great
Seal Patent Office within six calendar months next and immediately after
the date of the said Letters Patent.
NOW KNOW YE, that I, the said William Clark, do hereby declare
the nature of the said Invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement, reference being had to the Sheet of Drawings hereunto annexed,
and to the letters and figures marked thereon (that is to say):
Figure 1 represents a vertical central section of this Invention; Figures 2
and 2* are side elevations of the upper valve seat; Figure 3 is a transverse

page_text: section of the lower valve seat; Figure 3 is a side elevation of the same.
Similar letters of reference indicate corresponding parts.
This Invention relates to an oil or grease cup which is provided with two
cone valves, the stems of which are connected so that they are compelled to
turn together, but free to move a short distance towards or from each other;
these valves close into corresponding seats, and from their peripheries project
studs which work against circular, inclined, or spiral planes surrounding the
seats and arranged so that the highest part of one of these spiral planes is in
a line with the lowest part of the other in such a manner that when the
valves are subjected to the action of a suitable spring, which has a tendency to
keep the same closed, by turning the valves one will open when the other
closes, and vice versa, and the globe of the grease cup is alternately brought
in connection with the supply cup, and then with the steam chest or other part
to be lubricated.
A represents the grease cup, which is constructed in the usual form or
shape and composed of the supply cup a and the globe o which is filed mis
the stem or shank c that is intended to screw into the part to be lubricated.
This grease cup is provided with two valves f, f, and the upper end of the
stem of the valve f is fitted into a socket in the bottom end of the valve
and a pin d forms the connection between the two valves. This pin passes
through the socket of the valve f¹ and through a slot in the stem of the valve f,
so that the two valves are compelled to turn together, but free to rise and
tall a short distance, one independent of the other The stem of the valve f¹
extends up through the supply cup a, and it bears a handle g by means of
which the valves can be turned in either direction, and a spring k bas a
tendency to force the valve f up, the valve f being closed by the pressure of
the steam. The valve f¹ closes into a seat e¹ on the bottom end of the screw
shank of the supply cup, and the valve f into a seat eat the bottom end of
the screw shank of the globe b, and from the bottom edges of these seats
project inclined or spiral planes 2, 2, and pins h, h', projecting from the
peripheries of the valves bear against these spiral planes, said spiral planes
are so situated that the highest part of the plane is opposite the lowest
part of the plane i, and vice veisa. By making the inclined planes
doubly inclined, as shown in Figures 2 and 2*, the handles can be turned
freely in either direction. The operation is as follows -When the
handle 9 is turned either way one half turn the pin h will first descend the
spiral plane, and the pressure of the steam closes the valsef, cutting off
the communication between the reservoir and the steam chest The pin h¹
will then ascend the spiral plane i, forcing the valvo f' off from its seat and
21

page_text: opening communication between the supply cup and the globe. When the
globe is full the handle g is turned again one half tuin either way, the pin h¹
descends the spiral plane 2, allowing the valve f¹ to close by the action of the
spring k, and the pin h ascends the spual plane i, forcing the valve f off from
its seat and opening communication between the globe and the steam chest
or other part to be lubricated. A suitable vent valve on the side of the
globe permits the steam from the interior of said globe to escape when the
valve f is closed and the valve f¹ opened, this vent valve is made to open and
close automatically, or it can be operated by hand. It must be emaiked that
the connection between the two valves f, f, can be effected by screw threads
or other means, and I do not wish to confine myself to the precise means
herein shown and described.
Having described the nature of this Invention, and the manner of per-
forming the same, I declare that what I claim as the Invention to be pro-
tected by the herein-before in part recited Letters Patent is,
1st, the valves f, f, connected substantially as herein described or in any
other equivalent manner which will produce the same result, in combination
with the cup a and globe 6 of a grease cup, constructed and operating in
the manner and for the purpose substantially as set forth.
2ndly, the inclined planes h, h¹, and pins 2, 1, in combination with the
valves f, f, supply cup C, and globe 6 of a grease cup, constructed and operating
substantially as and for the purpose described
In witness whereof, I, the said William Clark, bave hereunto set my
hand and seal, this Ninth day of January, in the year of our Loid
One thousand eight hundred and sixty-seven.
Witness,
JAMES DAISH,
53, Chancery Lane,
London.
W. CLARK. (LS)