Improvements in and relating to Lubricators.
Year: 1894

page_text: PROVISIONAL SPECIFICATION.
Improvements in and relating to Lubricators.
$
We, GEORGE BEN GOODFELLOW of Hyde in the County of Chester Engineer
and EDWIN ARTHUR PICKUP of 208 Mottram Road Hyde as aforesaid Engineer
do hereby declare the nature of this invention to be as follows:-
Our invention has for its object improvements in the construction of a lubricator.
by means of which small quantities of lubricant can be successively supplied to the.
cylinders of steam or other engines or to moving parts of machinery.
In carrying our said invention into effect we employ a ram placed below the oil.
space in a lubricator the said ram fitting loosely in one portion of the stem of the
lubricator. The ram wben in its lowermost position, rests upon a seat formed to
receive it thus acting as a valve and effectually preventing the passage of oil. The
rain is so constructed that the application of a pressure below it in excess of that
above it will cause it to lift on its seat and permit the flow of oil past it. When,
the operative pressure acting on the ram above and below it is in equilibrium or
when the pressure above is in excess of that below it the ram falls upon its seat
and shuts off the supply of oil. The range of the upward motion of the ram is.
limited by means of a suitable stop which can be adjusted to provide for various
quantities of oil to flow.
When our said invention is applied to any reciprocating moving part of any
machine or to a similar purpose the inertia of the ram is sufficient to raise it during
each downward movement and to cause it to fall during the upward movement,
'Dated this 15th day of December 1894.
Improvements in and relating to Lubricators.
We GEORGE BEN GOODFELLOW of Hyde in the County of Chester Engineer
and EDWIN ARTHUR PICKUP of 208 Mottram Road Hyde as aforesaid Engineer
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 :-
'
Our invention has for its object improvements in the construction of lubricators,
by means of which small quantities of lubricant can be successively supplied to the
cylinders of steam or other engines or to moving parts of machinery.
In order that our said invention may be the more easily understood and readily
carried into effect we have hereunto annexed a sheet of drawings wherein
Fig. 1 shows a lubricator constructed in accordance with our said invention in
partially sectional elevation and
.
tom through the line X Y
,

page_text: In carrying our said invention into effect we form the lubricator with the usual
reservoir or oil receiving chamber 'A which is closed at its upper end by a screwed
cap B which is threaded at its lower end at C in order to form a guide for the
threaded spindle D fitting within it and has also fitted into it a central plug E by
means of which oil can be introduced into the reservoir A when required. Attached
at the points shown is an air cock F and a valve G which when the lubricator is
employed in connection with a steam engine regulates the entrance of 'steam from
the receiver or its equivalent being coupled thereto by the pipe G'. The lower
end of the reservoir A is screwed on to a shank or stem the upper part of
which J is formed into a chamber, or mouth having at its lower end an annular
ring or chamber in which the oil collects so as to be readily delivered when the
plunger Lis raised and the lower part Kinto a throat or pipe through which the oil
can flow directly.to the cylinder as shown in the drawing Within the chamber' J
is placed a ram or plunger L which is formed with a 'cone at its underside the said
cone normally resting on the upper edge of the throat K thus forming 'a'valve and
closing the outlet. Immediately below the top of K. is placed a small valve, M
which when open permits the oil to enter the cylinder freely through K, and the
passages shown and when M is closed a portion of the steam raising. Lis.conveyed
by a small pipe N to the upper part of the reservoir, thus establishing an
equilibrium in the reservoir.
.; 1. ..
The 'action of the said lubricator is as follows. The reservoir A being duly
filled with oil and the plug E fixed in position the air valve F is closed and a
connection established with the receiver or other convenient part by means of the
valve G and the pipe G¹. A certain pressure is thus established within A which
acting on the plunger L presses it on to the throat K and thus closes the orifice.
So long therefore as the pressure above L is greater than or equal to that below it
the outlet is closed and no oil can flow but when the pressure entering through K is
sufficient to overcome' that in the reservoir A and the weight of the plunger L the
latter is raised and permits oil to flow past it into the steam cylinder. As soon as.
the pressure in the steam cylinder falls sufficiently to reestablish. a superior
pressure in the reservoir' A or an equilibrium of pressure above and below L then.
the plunger L will fall and close the orifice thus again shutting off the supply of
oil. The action thus depends upon the pulsations caused by the variation of the
steam pressure within the cylinder. By the introduction of a sight tube O in the
shank 'P the supply of oil can be made visible. The quantity of oil supplied
depends directly upon the pressure within the reservoir and upon the range of
movement of the plunger L which is limited by means of the screwed stop
spindle D. In the event of an extra supply of oil being required the valve M is
opened and the oil flows freely from the chamber J through the passages shown
into the throat K and so into the cylinder.
When a lubricator constructed according to our said invention is used for the purpose
of lubricating the bearings of reciprocally moving parts of machinery we dispense
with the valve G the valve M and their connected parts and the sight. feed
arrangement O and P.. When used for this purpose the lifting of the plunger L
depends upon its inertia which during the descent of the moving part causes it to
rise from its seat to fall on it again as the moving part ascends. If the
reciprocations of the said moving part are in a horizontal direction we can dispose
of the plunger L in such a manner that the forward movement will close and the
backward movement open the outlet or vice versa.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what
we claim is
First. An automatic lubricator having as its essential feature a plunger normally
closing the outlet orifice but operated to open the said outlet by pressure applied
below it or by the action of inertia and constructed substantially as hereinbefore
described and illustrated.

page_text: Second. The employment and combination with a lubricator of an internally
disposed plunger operated in the manner and for the purpose as hereinbefore
described and illustrated.
1
1005
G. B. GOODFELLOW.