AN IMPROVED CONSTRUCTION OF LUBRI CATING APPARATUS FOR STEAM ENGINE PURPOSES
Year: 1865

page_text: LETTERS PATENT to Ewing Pye Colquhoun and John Pardoe Ferris,
both of No. 1, Laurence Pountney Hill, Cannon Street, in the City
of London, for the Invention of "AN IMPROVED CONSTRUCTION OF LUBRI
CATING APPARATUS FOR STEAM ENGINE PURPOSES."
Sealed the 28th July 1865, and dated the 31st January 1865.
PROVISIONAL SPECIFICATION left by the said Ewing Pye Colquhoun
and John Pardoe Ferris at the Office of the Commissioners of Patents,
with their Petition, on the 31st January 1865.
We, EWING PYE COLQUHOUN and JOHN PARDOE FERRIS, both of No. 1,
Laurence Pountney Hill, Cannon Street, in the City of London, do hereby
declare the nature of the said Invention for "AN IMPROVED CONSTRUCTION OF
LUBRICATING APPARATUS FOR STEAM ENGINE PURPOSES," to be as follows:-
The object of this Invention is to simplify the construction of lubricating
apparatus for steam engine purposes, and we propose to effect this object in
the following manner-In the body of the lubricator is formed a chamber
for containing oil; passing through the chamber of oil is a tube or passage,
through which the steam travels and condenses, and falls into and among the
oil, which is thereby displaced and forced down the tube to the part to be
lubricated. When all or any portion of the oil has been consumed the
chamber will be found to contain water, which can be released by the screw
at the lower part of the lubricator. The upper portion of the lubricator has

page_text: a cock so arranged that the chamber for containing the oil can be readily
filled, or so adjusted as to dispense any given quantity of oil or suspend
lubrication entirely.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Ewing Pye Colquhoun and John Pardoe Ferris in the
Great Seal Patent Office on the 29th July 1865.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, EWING
PYE COLQUHOUN and JOHN PARDOE FERRIS, both of No. 1, Laurence Pountney
Hill, Cannon Street, in the City of London, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Thirty-first day of January, in the year of our
Lord One thousand eight hundred and sixty-five, in the twenty-eighth
year of Her reign, did, for Ierself, Her heirs and successors, give and
grant unto us, the said Ewing Pye Colquhoun and John Pardoe Ferris, Her
special licence that we, the said Ewing Pye Colquhoun and John Pardoe
Ferris, our executors, administrators, and assigns, or such others as we, the
said Ewing Pye Colquhoun and John Pardoe Ferris, our executors, adminis-
trators, 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 "AN IMPROVED CONSTRUCTION OF LUBRICATING APPARATUS FOR
STEAM ENGINE PURPOSES," upon the condition (amongst others) that we, the
said Ewing Pye Colquhoun and John Pardoe Ferris, our executors or
administrators, by an instrument in writing under our, 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 we, the said Ewing Pye Colquhoun and John
Pardoe Ferris, do hereby declare the nature of our 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
Drawings hereto annexed, and to the figures and letters marked thereon.
This lubricator acts by condensation, and has been designed to lubricate

page_text: only under pressure of steam, consequently when an engine is not in action
Jubrication is suspended.
Fig. 1 represents a full size vertical section of the lubricator, with the handle
in position to produce lubrication; Fig. 2 is also a full size vertical section,
with the handle in position for filling the chamber with oil, lubrication being
suspended.
The body of the lubricator contains a chamber for the reception of oil;
passing through this chamber is a tube or passage, through which the steam
travels, and condensing falls into and among the oil, which is thereby displaced
and forced down the tube to the part to be lubricated. When all or any
portion of the oil has been consumed the chamber will be found to contain a
volume of water equal to the displacement of oil; this water, which naturally
falls to the bottom, can be released by the screw tap at the lower part of the
lubricator. The upper portion of the lubricator is furnished with a cock, so
arranged that the oil chamber can be readily filled or so adjusted as to
dispense a greater or less quantity of oil, or suspend lubrication entirely.
The body of the lubricator forms the chamber A, A, into which oil is passed
through the passages B, C, D, the handle E being previously adjusted for the
purpose, as illustrated in Fig. 2. In this state steam is shut off, and the
action of the lubricator suspended. By placing the handle E in a vertical
position, as shown in Fig. 1, the passages F, G, D, are then connected, and
through these steam passes to the chamber A, condenses and falling into and
among the oil forces it out through the same passages, the passage D serving
for the double purpose of filling and discharging. The chamber A can be
emptied through the aperture H by slackening the screw I.
Having now described the nature of our said Invention, and the manner in
which the same is to be performed, we wish it to be understood that we
simply claim the mechanical arrangements as herein described and illustrated
by the annexed Drawings.
In witness whereof, we, the said Ewing Pye Colquhoun and John
Pardoe Ferris, have hereunto set our hands and seals, this Twenty-
ninth day of July, in the year of our Lord One thousand eight hundred
and citer five
EWING PYE COLQUHOUN. (L.S.)
JOHN PARDOE FERRIS.
(L.S.)