AN IMPROVED APPARATUS FOR LUBRICATING PARTS OF LOCOMOTIVE AND OTHER ENGINES
Year: 1870

page_text: PROVISIONAL SPECIFICATION left by William Edward Gedge at the
Office of the Commissioners of Patents, with his Petition, on the
24th January 1870.-A communication from abroad by Pierre'
Freitel, of 37, Boulevard Bonne Nouvelle, Paris, France, Machinist.
I, WILLIAM EDWARD GEDGE, of the Firm of John Gedge and Son, of
No.. 11, Wellington Street, Strand, in the County of Middlesex, Patent
Agent, do hereby declare the nature of the said Invention. for "AN
IMPROVED APPARATUS FOR LUBRICATING PARTS OF LOCOMOTIVE AND OTHER ENGINES,"
a communication to me from abroad by Pierre Freitel, of 37, Boulevard
Bonne Nouville, Paris, France, Machinist, to be as follows:-
The improved oil or grease injector the subject of this Invention
is principally intended for lubricating the cylinders and slide valves of
locomotive engines.
It is composed, as shewn on the accompanying Drawing, of a metal
reservoir A, B, C, D, enclosing the fatty matter employed for lubrication,

page_text: .
oil for example. This reservoir has within it a wire gauze basket P,
which serves as a filter to the fatty matter and frees it from any foreign
substances which it may hold in suspension; it is also provided with
a lateral opening closed by a sheet of glass, through which the level
of the oil or grease may be ascertained. The reservoir communicates
by a conduit a with a cock, the plug of which is hollow. The seat of
the cock has on its lateral surface a hole which is at the bottom of
the conduit a, and before which may come an orifice in the plug to
place it in communication with the reservoir. A metal rod T plays
within the plug and acts as a piston. A lever L is fixed to the plug
of the cock, and when this lever is in the position indicated by L' the
cock is in communication with the reservoir. On the lever being made
to pivot about 180 degrees to bring it to L' the plug turns with it,
presents a solid part of its lateral surface before the opening a, and ceases
to communicate with the reservoir, but its hole comes in front of the
conduit 6, which places it in communication with the pieces to be oiled
by tubes leading to them.
This being assumed the action of the apparatus is as follows:―The
lever being at L the rod T is pulled to the position T', and the oil thus
drawn into the cock fills its plug or stem. The lever is then brought
to L', and the rod T being pushed down in the plug injects the oil
into the conduit b, lengthened by a tube which brings the oil on to the
plane surface of the slide valves.
This apparatus has the advantage of permitting instantaneous lubrica-
tion during the working of the engine, whether the regulator be open or
closed. There is no climbing over the engine at night with a lantern
and an oil can in the hand, and the engineer is left free to inspect the
parts of his engine during stoppages. It possesses the advantage over
lubricating apparatuses oiling by suction that it works notwithstanding
defective joints, segments, or packings, and over steam lubricators that
there can be no return of steam into the apparatus, the lubricating
matter being sent direct to its destination in all its purity and free from
admixture with water. It permits the slide valves and cylinders as well
as other parts of the engine to be greased separately, as many pipes
being fitted to the seat of the cock as may be required.
If it is desired' to lubricate with melted tallow the reservoir will be

page_text: placed on the front of the fire-box, the heat of which will melt the
tallow, and the conduits which put the lubricating apparatus in com-
munication with the slide valves set between the boiler and its jacket
to prevent cooling. It may be used for marine engines with great
advantage and economy, as the oil or the tallow may be injected into
the cylinders at very short intervals and in very small quantity.