IMPROVE- MENTS IN OIL CANS OR LUBRICATING VESSELS
Year: 1864

page_text: LETTERS PATENT to William Clark, of 53, Chancery Lane, in the County
of Middlesex, Engineer and Patent Agent, for the Invention of "IMPROVE-
MENTS IN OIL CANS OR LUBRICATING VESSELS."-A communication from
abroad by Jules de la Coux Desrozeaux, Merchant, of 29, Boulevart
St. Martin. Paris.
Sealed the 23rd September 1864, and dated the 6th April 1864.
PROVISIONAL SPECIFICATION left by the said William Clark at the Offico
of the Commissioners of Patents, with his Petition, on the 6th April
1864.
I, WILLIAM CLARK, of 53, Chancery Lane, in the County of Middlesex,
Engineer and Patent Agent, do hereby declare the nature of the said Inven-
tion for "IMPROVEMENTS IN OIL CANS OR LUBRICATING VESSELS," to be as
follows:-
This Invention relates to an improved lubricator or oil can which is formed
of a reservoir of any suitable shape, for containing oil or other lubricating
matter; this reservoir is closed at top by a plug, having a small tube at its
centre projecting about equally above and below said plug; this tube is open
at the upper part, the lower end being closed, while that portion of the tube
which is below the plug and dipping into the reservoir containing the lubri-
cating liquid is provided with two small openings, the first up near the plug
and the other in the bottom closed end of the pipe. The one opening affords
passage for the lubricating liquid when the can is tilted in pouring, while the
other permits air to enter the reservoir to take the place of the liquid which
has been withdrawn. These openings are of very small diameter in order

page_text: that the liquid shall flow out very slowly; with an apparatus so arranged there
will be no loss of oil in case it should be overturned.
For the better elucidation of this Invention I have represented three
illustrations of the apparatus in the accompanying Drawings.
Fig. 1 shows a central vertical section of one arrangement of oil can; Fig. 2
an elevation of an oil can differing from the preceding only in being of larger
dimensions; Fig. 3 shows an elevation of another arrangement of oil can
partly in section in order to show the method of fitting the tube thereto.
The same letters serve for the three Figures.
a, reservoir which may be made of any suitable form, dimensions, or
material; b, tube, fixed in a plug or socket c, which latter may be screwed as
shown in the Drawing, or otherwise fitted to the neck of reservoir a;
d, opening made in tube b, for the passage of the lubricating liquid; e, second
opening made in the closed end of said tube. In Fig. 3 the tube b is con-
nected to the socket c by a screw thread f; g, lubricating liquid contained in
reservoir a; h, foot of the oil can.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said William Clark in the Great Seal Patent Office on the 5th
October 1864.
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 Sixth day of April, in the year of our Lord
One thousand eight hundred and sixty-four, in the twenty-seventh year of
Her reign, did, for Herself, Her heirs and successors, give and grant 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 thereafter
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 "IMPROVEMENTS IN OIL
CANS OR LUBRICATING VESSELS," a communication to me from abroad by Jules
de la. Coux Deşrozeaux, Merchant, of 29, Boulevart St. Martin, Paris, upon
the condition (amongst others) that I, the said William Clark, my executors

page_text: 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 per-
formed, 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 per-
formed, 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) :-
matter.
This Invention relates to an improved lubricator or oil can, which is formed
of a reservoir of any suitable shape for containing oil or other lubricating
This reservoir is closed at top by a plug having a small tube at its
centre projecting equally above and below said plug. This tube is open at
the upper part, the lower end being closed, while that portion of the tube
which is below the plug and dipping into the reservoir containing the lubricating
liquid is provided with two small openings, the first up near the plug and the
other in the bottom closed end of pipe, the one opening affords passage for
the lubricating liquid when the cup is tilted in pouring, while the other
permits air to enter the reservoir to take the place of the liquid which has
been withdrawn. These openings are of very small diameter in order that
the liquid shall flow out very slowly; with an apparatus so arranged there
will be no loss of oil in case it should be overturned.
For the better elucidation of this Invention I have represented three
illustrations of the apparatus in the accompanying Drawing.
Fig.1 shows a central vertical section of one arrangement of oil cup; Fig. 2
an elevation of an oil cup differing from the preceding only in being of larger
dimensions; Fig. 3 shows an elevation of another arrangement of oil cup
partly in section, in order to show the method of fitting the tube thereto;
Fig. 4 shows an oil cup filled with liquid and applied to a bearing, while
Fig. 5 shows various modifications of the apparatus herein-after described.
The same letters of reference indicate similar parts in the several Figures.
a, reservoir which may be made of any suitable form, dimensions, or
material; b, tube fixed in a cap c, which latter may be screwed on chamber a,
or by means of a screw thread in the neck of the reservoir itself; d, opening
made in tube b for the passage of the lubricating liquid; e, second opening
made in the closed end of said tube for the passage of air. In Fig. 8 the
tube b is connected to the cap c by a screw thread f; 9, lubricating liquid

page_text: contained in reservoir a; h, foot of the oil cup. In Fig. 5 I have represented
several modifications of the tube b; the end of this tube dipping in the liquid
may be closed by means of a small cap i fitted thereto either by screwing or
otherwise; the cap i is further furnished with an orifice e. The advantage of
this arrangement is, that by removing cap i the tube b may be readily cleaned
when desired. This tube may also be furnished with a screw thread j, as
shown at Fig. 5 when used for lubricating pivots and movable bearings, in
which case the oil cup is fixed to the bearing by screwing or otherwise.
In this Figure I have further represented the cap c as screwing into the
neck of the reservoir. This being understood the action of the lubricator
is as follows:-I first remove the cap c and fill the cup a with oil, which
being done, the cap c is again screwed on the neck of the reservoir, and the
apparatus reversed, so as to introduce the projecting part of the tube b into
the hole made for the introduction of the oil in the cap of the bearing, as seen
in Fig. 4. The tube 6 should be fitted so as to nearly touch the shaft to be
lubricated. In this position the first movement of the shaft causes the oil to
flow out drop by drop alternately with an air bubble, and so on so long as the
rotation of the shaft continues. The flow ceases on the shaft ceasing to
rotate, and again proceeds as it starts afresh, the supply being proportionate
to the speed of rotation."
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 protected
by the herein-before in part recited Letters Patent is, the improved oil can
or lubricator herein described, based on the purely physical principle, whereby
its action is rendered regular and certain as described.
In witness whereof, I, the said William Clark, have hereunto set my
hand and seal, this Fourth day of October, in the year of our Lord
One thousand eight hundred and sixty-four.
Witness;
JAMES DAISH,
53, Chancery Lane,
London.
W. CLARK. (LS.)