IMPROVEMENTS IN SIGHT FEED AND 'OTHER LUBRICATORS FOR STEAM ENGINES
Year: 1884

page_text: We JAMES KITSON of Thornhill near Dewsbury in the county of York Engineer
SAMUEL BIRKETT and JAMES ROBINSON both of Northgate, Cleckheaton in the
county of York, Brass finishers, do hereby declare the nature of our Invention for
"IMPROVEMENTS IN SIGHT FEED AND 'OTHER LUBRICATORS FOR STEAM ENGINES
to be as follows:-
17
The object of our invention is to enable the lubricators to feed from the smallest
to the largest quantity of lubricant required.
In the present sight feed and other lubricators, the great defect is that the
steam does not condense sufficiently quick in the condenser, and consequently only
a limited amount of lubricant can be fed.
To ensure the steam being condensed quickly, we employ a metal coil or coils
either spiral or in any other suitable coiled form, so as to give a large cooling
surface for the steam allowing it to condense quickly, the coils being.being open
to the action of the atmospheric air it assists condensation. We also employ in
connection with the sight feed lubricator a stop valve or tap so that the lubricator
can be detached when required without stopping the Engine.
JOHN E. WALSH,
Crossley Street, Halifax,
Agent to the Applicants.
We JAMES KITSON of Dewsbury Engineer, SAMUEL BIRKETT and JAMES
ROBINSON both of Northgate Cleckheaton Brass Finishers all in the county of York
do hereby declare the nature of our said Invention for IMPROVEMENTS IN SIGHT
FEED AND OTHER LUBRICATORS FOR STEAM ENGINES, and in what manner the same
is to be performed, to be particularly described and ascertained in and by the
following statement:—
The object of our invention is to enable the lubricator to feed from the smallest
to the largest quantity of lubricant required, in the present sight feed and other
lubricators, the effect is that the steam does not condense sufficiently quick in the

page_text: condenser, and consequently only a limited amount of lubricant can be fed. To
ensure the steam being condensed quickly we employ a metal coil or coils, either
spiral, or in any other suitable coiled form, so as to give a large cooling surface, for
the steam, allowing it to condense quickly, the coils being open to the action of the
atmospheric air, it assists condensation, we also employ in connection with the
sight lubricator, a stop valve or tap, so that the lubricator can be detached, when
required, or in case of accident without stopping the engine.
DESCRIPTION OF DRAWING.
Fig 1 shews a view of a sight feed lubricator, with our improvements attached.
A is the spiral or coiled condenser which is attached to the lubricator at C, and
is open so as to allow the air to pass around it, and so give a large cooling surface for
the steam, allowing it to condense quickly, B is a stop valve or tap placed below the
lubricator so as to stop off all steam in case of accident, and allowing when required
the lubricator to be detached, without stopping the engine; F is the filling cup of
the lubricator, and G the glass filled with water, two connections are made to the
steam pipe, one from H, and the other from J, the latter being the inlet; supposing
no water to be present in pipe D, then with valves C and F¹, open, and steam
on, there will be an equal pressure in the pipes and vessel, and no tendency of the
oil to circulate through the valve F1, when sufficient condensation has taken place
to fill with water the coil A, and pipe D, then the equilibrium is disturbed, on the
glass side there is steam pressure only, and the other side an equal steam pressure
besides the weight of water, which passes into the bottom of the lubricator, causing
the lubricant to descend, along the inner tube K, through the valve F¹, and up the
glass into the steam, through pipe H, the supply being regulated by the valve F
by the above arrangement, any number of drops of lubricant can be passed in
a minute; when the lubricant is exhausted, close the connections, and opening the
valve or tap L, then open the plug M, and the water will run out.
Having now particularly described and ascertained, the nature of our said
invention and in what manner the same is to be performed, we would have it
understood that we do not limit ourselves to the exact form or construction of the
spiral or coiled condenser, or to the exact form of valve as shewn, but we declare
that what we claim is
1 The application of coiled condensers to sight feed, or other suitable lubricators
for the purposes shewn and described.
2 The use and employment of the stop valve, at the bottom of the lubricator as
shewn and described.