LUBRICATING APPARATUS APPLICABLE TO PISTONS
Year: 1862

page_text: LETTERS PATENT to John Brown, Manager, and Joseph Davenport,
Pattern Maker, both of Bolton, in the County of Lancaster, for the
TouraD LUBRICATING APPARATUS APPLICABLE TO PISTONS."
ealed the 22nd July 1862, and dated the 25th January 1862.
PROVISIONAL SPECIFICATION left by the said John Brown and Joseph.
Davenport, at the Office of the Commissioners of Patents, with their
Petition, on the 25th January 1862.
We, JOHN BROWN, Manager, and JOSEPH DAVENPORT, Pattern Maker, both
of Bolton, in the County of Lancaster, do hereby declare the nature of the
said Invention for "AN IMPROVED LUBRICATING APPARATUS APPLICABLE TO PISTONS,"
to be as follows:-
This Invention consists of a lubricator having two thoroughfares open
the steam with a direct communication through the tap. The lubricator is
constructed as follows:-A covered reservoir or cup containing oil or other
lubricating matter is mounted on a vertical tube, the lower part of which is
furnished with an ordinary tap, which closes and opens its communication
with a lower double or syphon passage, the opening of the tap completing the
communication, and vice versâ, the lower part of this double tube being
screwed on to the cylinder of a steam engine.
The tap is turned by means of a ratchet wheel fixed to a projecting stud,
and actuated by a lever and pall, the lever being worked by suitable mechanism
to accord with each stroke of the engine, or with the revolutions of the fly
wheel. The result being that the tap is caused to perform. a complete

page_text: revolution at any specific number of strokes of the piston, according to the
number of teeth in the ratchet wheel, and to supply at every complete turn
a given quantity of oil from the reservoir, equal to the capacity of the opening
in the tap which becomes filled with oil or other lubricating matter, while
its opening passes under the vertical tube communicating with the reservoir.
The steam being allowed to pass into the double tube, causes the lubricating
matter to flow into the cylinder. and on to the piston, and thus to lubricate the
It is obvious that the amount of lubrication can be regulated by the
above means, as may be required.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said John Brown and Joseph Davenport, in. the Great Seal.
Patent Office on the 25th July 1862.
TO ALL TO WHOM THESE PRESENTS: SHALL COME,.. we; JOHN
BROWN, Manager; and JOSEPH DAVENPORT, Pattern Maker, both of Bolton, in
the County of Lancaster, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-fifth day of January, in the year of our Lord
One thousand eight hundred and sixty-two, in the twenty-fifth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto us,
the said John Brown and Joseph Davenport, Her special licence that we, the
said John Brown and Joseph Davenport, our executors, administrators; and
assigns, or such other as we, the said John Brown and Joseph Davenport,
our 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 "AN IMPROVED LUBRICATING
APPARATUS APPLICABLE TO PISTONS," upon the condition (amongst others) that
we, the said John Brown and Joseph Davenport, our executors or adminis-
trators, 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 John Brown and Joseph Davenport,
do hereby declare the nature of our said Invention, and in what manner

page_text: the same is to be performed, to be particularly described and ascertained in
and by the following statement:-
This Invention consists of a lubricator having two thoroughfares open to
the steam with a direct communication through the tap or plug, which tap
or plug may be placed in an horizontal or vertical direction. The lubricator
is constructed as follows:-A covered reservoir or cup containing oil or other
lubricating matter is mounted on a vertical tube, the lower part of which is
furnished with an ordinary tap or plug which closes and opens its communica-
tion with a lower or double syphon passage, the opening of the tap or plug
completing the communication and vice versa, the lower part of this double
tube being screwed on to the cylinder, steam box, or pipe of a steam engine.
The tap or plug is turned by means of a ratchet wheel fixed to a projecting
stud, and actuated by a lever and pall, the lever being worked by suitable
mechanism to accord with each stroke of the engine, or with the revolutions.
of the fly wheel. The result being that the tap or plug is caused to perform
a complete revolution at any specific number of strokes of the piston, according
to the number of teeth in the ratchet wheel, to supply at every complete turn
of the tap or plug double the quantity of oil or other lubricating matter, of the
capacity of the opening in the tap or plug which becomes filled with oil or
other lubricating matter, while its opening passes twice under the vertical
tube for one complete revolution of the tap or plug communicating with the
reservoir. The steam being allowed to pass into the double tube, causes
the lubricating matter to flow into the cylinder, steam box, or pipe, and on
to the piston or valves, or other parts, and thus to lubricate the same. This
apparatus may be worked by hand if required, by putting an ordinary handle
on the tap or plug, and moving the same from a horizontal to a vertical
direction and vice versa. It is obvious that the amount of lubrication can
be regulated by the above means as may be required.
In order to explain our said Invention as completely as possible, we now
proceed to refer to the illustrative Sheet of Drawings hereto annexed in which
Fig. 1, is a front view; Fig. 2, a transverse vertical section, and Fig. 3, a
horizontal section of the lubricating apparatus; Fig. 4 is a side view of the
lever and pall, and Fig. 5 is a front view of the apparatus as applied to
locomotives, and Fig. 6 is a horizontal section thereof; similar letters
denoting corresponding parts in each of the Figures respectively. a is the
reservoir mounted on the tube b; c, is the tap or plug, and d, the double
syphon passage; the tap or plug is turned by the ratchet wheel e, fixed to the
projecting stud f, and which is actuated by the lever and pall g, which lever
is worked by a tappet or excentric attached to the shaft of the engine, or by

page_text: means of a rocking lever in connection with the beam or crosshead, or by any
other method whereby motion can be communicated to the lever by the
revolution or reciprocating motion of the engine. The Drawings represent
the tap or plug in a horizontal position, but it may be placed in a vertical
position if desired, without changing the principle on which the Invention is
based. It will be evident that the steam passing up the large passage h, will
force the lubricating material through the tap and down the small passage i.
We have to remark in conclusion, that we do not limit ourselves to the
precise details herein expressed, as the same may be varied or modified in
many ways without departing from the principles of our Invention, but what
we claim and desire to be secured to us by the herein in part recited Letters.
Patent are the general arrangements and combinations of parts constituting
"An Improved Lubricating Apparatus applicable to Pistons" substantially as
herein described and illustrated by the Drawings hereunto annexed.
In witness whereof, we, the said John Brown and Joseph Davenport,
have hereunto set our hands and seals, this Nineteenth day of July,
in the year of our Lord One thousand eight hundred and sixty-two.
Witness,
ROBERT MOSCROP,
18, Blackburn Road,
Bolton.
(L.S.)
JOSEPH DAVENPORT. (L.s.)