IMPROVEMENTS IN LUBRICATORS
Year: 1881

page_text: PROVISIONAL SPECIFICATION left by John Gallie at the Office of
the Commissioners of Patents on the 17th October 1881.
JOHN GALLIE, of Olinda Cottage, Oxford Road, Saint Helier, in the Island
of Jersey, one of the Channel Islands, Engine Fitter. " IMPROVEMENTS IN
LUBRICATORS."
This Invention relates to lubricators for steam engines, &c., and its essential
features are as follows:-
It consists of a vessel of brass or other suitable material, closed at both top &
bottom;
the bottom end has a branch by which it is attached to the cylinder, steam
pipe, &c., and standing up within the body or vessel on two concentric pipes, the
inner one secured to the bottom or branch, which may be screwed into the bottom,
and the outer one secured at top to the inner pipe but open at its lower end to the
interior of the cup. Holes are required at the top of the inner tube to establish a
connection between it and the inside of the cup. A passage is formed in the
bottom or bottom branch, at the exterior end of which is a valve having a long
spindle which reaches up inside the inner tube, and is headed or carries a nut
against which presses a small helical spring, so that the valve automatically closes,
unless intentionally kept open.
A cup is attached to the top of the vessel for filling it by; and in this is a
screwed spindle valve which, when screwed down, entirely closes the opening; an
intermediate spindle rests upon the end of the spindle of the lower valve and
reaches so high that when the top spindle is screwed down, it presses down
the intermediate spindle and lower spindle valve and opens it, so as to establish a
connection between the cylinder, steam pipe, &c., and the inside of the vessel.
The action is as follows:-
The lubricant is poured in through the cup at the top & the vessel filled.
The top spindle valve is next screwed tight down, thus closing the aperture, and
by means of the intermediate spindle opening the bottom spindle valve at the same
time; steam enters by the bottom valve, passes up past its spindle into the inner
tube, passes through holes prepared for the purpose in the top of the outer tube,
is there condensed, and forces down the oil or tallow which finds its way up the
annular space between the two tubes through the holes into the inner tube, and so
Price 1

page_text: down into the cylinder, &c. These details may of course be modified, but I have
well tested a valve made in accordance with the above description and it works
well.
The connection or passage from the cup at the top to the interior of the vessel
may be more particularly described. The hole down the centre is screw threaded,
and into this is screwed the top spindle valve, as above described. Around and
above the screwed part is the seating upon which the valve takes a bearing, and
underneath this and parallel with the axis of the spindle are formed holes,
preferably opening into the screwed central hole and not reaching quite to its
bottom, so that the last few threads of the female screw are complete threads, whereas
those above are broken at intervals. By this arrangement, when the spindle is
unscrewed from the complete threads, a clear passage is opened between the cup
and vessel. This is one way, though of course not the only way in which this may
be arranged.