Improvements in Lubricators.
Year: 1894

page_text: PROVISIONAL SPECIFICATION.
Improvements in Lubricators.
I, WILLIAM GREENHALGH Electrical Engineer 29 Carlton Street, Leeds,
Yorkshire, do hereby declare the nature of this invention to be as follows:-
My improvements in lubricators are for the purpose of supplying a steady flow
of oil to the surface to be lubricated & specially to provide means for returning
the oil to the source of supply so that there is a constant circulation of the oil.
To the bearing to be lubricated I attach an oil reservoir of
any convenient
shape. The contained oil is conveyed to the surface to be lubricated by a
porous wick which presses against it. Circular channels are made in the bearing
close to the ends & longitudinal channels are cut in the lowest part of the
bearing along which the oil is returned to the reservoir after it has travelled
over the lubricated surface. By this means a constant circulation of oil is
maintained without any creeping outside the bearing.
Dated this 14th day of December 1894.
Improvements in Lubricators.
1, WILLIAM GREENHALGH Electrical Engineer 29 Carlton Street Leeds,
Yorkshire do hereby declare the nature of this invention and in what manner the
same is to be performed, to be particularly described and ascertained in and by
the following statement :-
My improvements in lubricators are for the purpose of supplying a steady flow
of oil to the surface to be lubricated & specially to provide means for returning
the oil to the source of supply so that there is a constant circulation maintained.
The annexed drawings show two methods in which my improvements may be
carried out.
In Figs. 1 & 2, A is the bearing to be lubricated. B is a metal tube secured
into the underneath side of the bearing. To the tube is attached the oil vessel C
in any convenient manner. Through the tube B passes a piece of lamp wick or
other suitable material D which is pressed up against the shaft E by means of the
spiral spring F. In the bearing A are cut two circular channels G & a longi-
tudinal channel H. Two tubes J J are connected with the lowest part of the
When the shaft
channel H & serve to drain the oil back into the vessel C.
revolves oil is drawn up the wick & travels along the shaft, the excess of oil
draining back into the oil vessel through the return channel & tubes. By this
means a constant circulation of oil over the shaft is maintained while it is in
motion.
In this case two
Figs. 3 & 4 show the application to a pair of split bushes.
horizontal channels K K are cut along the longitudinal faces of the bushes & are
provided with the drain pipes L. L. L, L.

page_text: I would have it understood that I do not confine myself to the exact details of
construction as shown in the drawings, as they may be varied in many ways
without departing from the particular features of my invention.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is:
The combination, with an oil bath & a wick pressed against the surface to be
lubricated, of return oil channels substantially as described & illustrated in
Figs. 1, 2, 3, 4.
Dated this Twenty-seventh day of August 1895.
WILLIAM GREENHALGH.