IMPROVEMENTS IN APPARATUS FOR LUBRICATING THE CYLINDERS AND OTHER PARTS OF STEAM ENGINES
Year: 1863

page_text: LETTERS PATENT to James Johnson, of Peterborough, in the County
of Northampton, Engineer, for the Invention of "IMPROVEMENTS IN
APPARATUS FOR LUBRICATING THE CYLINDERS AND OTHER PARTS OF STEAM
ENGINES."
Sealed the 3rd May 1864, and dated the 7th November 1863.
PROVISIONAL SPECIFICATION left by the said James Johnson at the
Office of the Commissioners of Patents, with his Petition, on the 7th
November 1863.
I, JAMES JOHNSON, of Peterborough, in the County of Northampton,
Engineer, do hereby declare the nature of the said Invention for "IMPROVE-
MENTS IN APPARATUS FOR LUBRICATING THE CYLINDERS AND OTHER PARTS OF STEAM
ENGINES," to be as follows:-
This Invention consists of a cylindrical oil vessel or cup, with a tube cast in
the centre extending nearly to the cover of the cup, through which a screw
valve is introduced, with a seating on the top of the tube; by altering the
distance of the valve from the seating the quantity of oil or other lubricating
matter flowing out from the apparatus may be regulated; at the bottom of the
tube is another valve seating and a spherical valve. The apparatus is filled

page_text: through an opening in the cover, which is afterwards closed by a taper screw.
The condensed steam is ejected when required through a screw valve near the
bottom of the oil vessel. A union pipe connects the oil vessel with a steam pipe.
When steam is put on the spherical valve is forced up on its seating, and com-
munication between the oil vessel and the steam pipe is cut off, at the same
time a portion of steam escapes past the spherical valve while raising it into
the oil vessel, where it condenses and raises the oil to the level of the central
tube. When the steam is shut off the spherical valve falls from its seating and
allows the oil to be drawn or to flow out and lubricate the parts required.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said James Johnson in the Great Seal Patent Office on the
7th May 1864.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JAMES
JOHNSON, of Peterborough, in the County of Northampton, Engineer, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Seventh day of November, in the year of our Lord
One thousand eight hundred and sixty-three, in the twenty-seventh year of
Her reign, did, for Herself, Her heirs and successors, give and grant unto
me, the said James Johnson, Her special licence that I, the said James
Johnson, my executors, administrators, and assigns, or such others as I, the
said James Johnson, 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 "IMPROVEMENTS
IN APPARATUS FOR LUBRICATING THE CYLINDERS AND OTHER PARTS OF STEAM
ENGINES," upon the condition (amongst others) that I, the said James
Johnson, 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.

page_text: NOW KNOW YE, that I, the said James Johnson, do hereby declare
the nature of my said Invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement thereof, reference being had to the Drawings hereunto annexed,
that is to say:-
My Invention consists of an oil vessel or cup, with a tube extending nearly
to the cover of the cup, through which a screw valve is introduced, with a
seating on the top of the tube; by altering the distance of the valve from the
seating the quantity of oil or other lubricating matter flowing out from the
apparatus may be regulated; at the bottom of the tube is another valve
seating and a spherical valve. The apparatus is filled through an opening
in the cover, which is afterwards closed by a taper screw. The condensed
steam is ejected when required through a screw valve near the bottom of the
oil vessel.
In the accompanying Drawings I shew one of my lubricators adapted to
the cylinders of a locomotive and fixed to the smoke box.
Figure 1 is an elevation, and Figure 2 a vertical section of the lubricator.
A is a cylindrical oil vessel or cup, with a tube B in the centre extending
nearly to the cover of the cup, through which cover a screw valve C is intro-
duced, with a seating on the top of the tube B; by altering the distance of the
valve C from the seating, the quantity of oil or other lubricating matter
flowing out from the apparatus may be regulated; D is another valve seating
with a spherical valve E; the apparatus is filled as before mentioned through
an opening in the cover, which is afterwards closed by a taper screw F; G is
a screw valve through which the condensed steam is ejected when required.
The apparatus is fastened to the smoke box K by a lug H and nut I; J is a
union connecting the apparatus to the steam pipe. When steam is put on,
the spherical valve E is forced up on its seating and communication
between the oil vessel and the steam pipe is cut off. At the same time a
portion of steam escapes past the spherical valve E while raising it into the oil
vessel, and raises the oil to the level of the top of the tube B. When the steam
is shut off the valve E falls from its seating D and allows the oil in the tube B
to be drawn or to flow out into the steam pipe and thus lubricate the cylin-
ders. The lubricator being actuated by the steam obviates the necessity of
the fireman walking along the foot plate of the locomotive to put oil in the
cylinder cocks when going down an incline with the steam shut off.
D,
And having now described the nature of the said Invention, and in what
manner the same is to be performed, I declare that I claim, the apparatus for

page_text: lubricating the cylinders and other parts of steam engines, constructed and
acting substantially in manner herein-before described.
In witness whereof, I, the said James Johnson, have hereunto set my
hand and seal, this Sixth day of May, One thousand eight hundred
and sixty-four.