IMPROVEMENTS IN LUBRICATORS APPLICABLE FOR USE WITH LOOSE PULLEYS
Year: 1884

page_text: I WILLIAM PHILLIPS THOMPSON of the firm of W. P. Thompson and Co, Agents
for Foreign Patent Solicitors, of 6 Lord Street Liverpool in the county of
Lancaster and 323 High Holborn in the county of Middlesex, Civil Engineer do
hereby declare the nature of the said invention for "IMPROVEMENTS IN LUBRICATORS
APPLICABLE FOR USE WITH LOOSE PULLEYS (a communication from abroad by
Louis E. Kane, of Cincinnati, in the State of Ohio, United States of America,
Engineer) to be as follows:-
"
The object of this invention is a device for lubricating loose pulleys which can
be cheaply constructed and readily applied, and when applied will automatically.
supply the oil when the pulley is in motion, and automatically cut off the supply
so soon as the pulley stops revolving.
The invention consists of a cup or oil reservoir which is arranged in an inverted
position with relation to the stem by which it is to be connected with the pulley
hub, so that the oil will be fed from the top of the cup or reservoir by centrifugal
force when the pulley rotates. It also consists in providing the reservoir with a
movable yielding or flexible bottom which will exert a pressure upon the body of
oil in the cup when the pulley is in motion, and thus insure a steady flow of oil to
the shaft, and when the pulley stops will assume its normal position and thus
cause a partial vacuum which will arrest the flow of oil from the discharge orifice.
It also consists in certain details of construction and combination of parts herein-
after described.
The upper part of the cup, of the lubricator, preferably made of glass, is fitted
with a screw-threaded metal neck, to engage an internal screw-thread in a cap; a
flange projects from the inner end of the threaded metal neck, to engage the inside
of the cup; the tube is held from turning by spurs upon the inside of the glass
which pass between slots in the flange of the neck. The upper end of the cup has
a groove or channel around the neck to receive an elastic gasket of cork or other
suitable material which is pressed into a groove by the edge of the cap, when it is
screwed down to make a close joint. The bottom of the reservoir is made of
ת.
.

page_text: rubber or other suitable elastic or flexible material, and it is secured around the
rebated end of the glass cup by a wire or cord. In the lower centre of the
diaphragm is a weight riveted in.
In the opposite sides of the cap are tubes, which curve around opposite sides of
the reservoir and are connected beneath it to a tapered screw-threaded stem or
plug which is to connect the oiler to the pulley hub. These tubes register with a
longitudinal perforation in the stem, thus making the communication between the
reservoir and the discharge port in the stem.
From one side of the stem a transverse perforation extends inward and across
the oil duct, this is closed by a screw plug which is for the purpose of regulating
the supply of oil or closing it entirely off if desired.
The reservoir is supplied with oil through an opening in the cap, which opening
is stopped by a screw-plug.
It is evident that the form of the device may be varied without departing from
the principle of the invention, for instance the tubes passing round the reservoir
might be dispensed with, and instead of them a tube from the stem be passed
through the reservoir up into the neck, or the upper part of the reservoir and the
bottom part could either be fitted to slide upon this tube or the bottom part could
be drawn inward and secured permanently to the tube and a follower put outside
of the reservoir around the tube which would force in the flexible bottom as the
weight does.
Dated thin South
1001

page_text: I, WILLIAM PHILLIPS THOMPSON, of the firm of W. P. Thompson and Co.,
Agents for Foreign Patent Solicitors, of 6 Lord Street, Liverpool in the County of
Lancaster, and 323 High Holborn in the County of Middlesex, Civil Engineer do
hereby declare the nature of the said invention for "IMPROVEMENTS IN LUBRI-
CATORS APPLICABLE FOR USE WITH LOOSE PULLEYS" A communication from
abroad by Louis E. Kane, of Cincinnati, in the State of Ohio, United States of
America, Engineer 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 this invention is a device for lubricating loose pulleys which can
be cheaply constructed and readily applied, and when applied will automatically
supply the oil when the pulley is in motion, and automatically cut off the supply
so soon as the pulley stops revolving.
With these objects in view the invention consists of a cup or oil reservoir which
is arranged in an inverted position with relation to the stem by which it is to be
connected with the pulley bub, so that the oil will be fed from the top. of the cup
or reservoir by centrifugal force when the pulley rotates, it also consists in
providing the reservoir with a movable yielding or flexible bottom which will exert
a pressure upon the body of oil in the cup when the pulley is in motion, and thus
insure a steady flow of oil to the shaft, and when the pulley stops will assume its
normal position and thus cause a partial vacuum which will arrest the flow of oil
from the discharge orifice. It also consists in certain details of construction and
combination of parts all of which will be fully understood from a description of
the accompanying drawings, in which :-
Figure 1 is a side elevation of a lubricator embodying the invention and Figure 2
is a view partly in side elevation and partly in central vertical section.
.
The upper part of the cup A which is preferably made of glass is fitted with a
screw threaded metal neck B to engage an internal screw thread in the cap C, a
flange projects from the inner end of the tube B to engage the inside of the cup A,
the tube is held from turning by spurs upon the inside of the glass which pass
between slots in the flange of neck B. The upper end of the cup A has a groove
or channel around the neck B to receive an elastic gasket d of cork or other suitable
material which is pressed into the groove by the edge of the cap C, when it is
screwed down to make a close joint. The bottom D of the reservoir is made of
rubber or other suitable elastic or flexible material, and it is secured around the
rebated end of the glass cup A, by a wire or cord d. In the lower centre of the
diaphragm D is a weight g which has a shank that passes through the shell of D
to receive a burr n; the weight is secured by riveting the shank down upon the
burr. The weight g should be heavy enough to compress or force in the end of
the part D by centrifugal force when the pulley is running, and yet allow the
part D to return to its normal position should the pulley stop in a position that
the oiler would be underneath the hub.
In the opposite sides of the cap C are tubes E which curve around opposite
sides of the reservoir, and are connected beneath it to the tapered screw threaded
stem or plug F, which is to connect the oiler to the pulley hub. These tubes
register with a longitudinal perforation in stem F (shown in dotted line Figure 2)
thus making the communication between the reservoir and the discharge port in
the stem. The parts C, E F may be united in any suitable manner. In the
drawing they are shown united by screw-thread connection. The threads upon the
opposite lower ends of the tubes E, and in the opposite sides of the plug Fare

page_text: right and left, so that when the tubes are secured to the cap C, the lower ends may
be sprung apart to receive the plug F, the ends of the tubes are then drawn into
the stem or plug by turning it around through the space to be occupied by the
reservoir, after which the reservoir A D is placed in position and screwed up until
the cap forces the cork d into its groove to make a tight joint.
From one side of the stem F a transverse perforation extends inward and across
the oil duct, this is closed by a screw plug f which is for the purpose of regulating
the supply of oil or closing it entirely off, if desired.
It will be seen that when the pulley is revolving the oil will be thrown by
centrifugal force in the direction of the cap C, the same force impels the weight g
from the axis of rotation thus compressing the part D and forcing the oil through
the tubes E and oil duct in the stem F and that so soon as the pulley stops the
part D will assume its normal position causing a partial vacuum to supply which
air will pass through the oil duct forcing the oil back through the tubes into the
reservoir, when the pulley is again started the air that has entered the reservoir
will pass between the oil and the weighted end of part D, and act as a cushion to
force the oil out through the tubes, thus the device will accomplish its work so
long as any oil remains in the reservoir. The reservoir is supplied with oil through
an opening in the cap C which opening is stopped by a screw plug c.
It is evident that the form of the device may be varied without departing from
the principle of the invention, for instance the tubes E might be dispensed with
and instead of them a tube from stem F be passed through the part D up into the
neck B or the upper part of the reservoir, and the bottom part D could either be
fitted to slide upon this tube or the bottom of part D could be drawn inward and
secured permanently to the tube and a follower put outside of the reservoir around
the tube which would force in the flexible bottom as the weight g does.
Having now particularly described and ascertained the nature of the said
invention as communicated to me, and in what manner the same is to be performed,
I declare that what I claim is :-
1st. In a lubricator for loose pulleys the combination, substantially as specified,
of the stem F and a reservoir having its discharge orifice inverted with relation to
the stem, with suitable means such as shown to connect the discharge orifice with
said stem.
2nd. In a loose pulley lubricator the combination of the stem F, tubes E and
cap C with the inverted reservoir A B, D, substantially as specified.
3rd. An oil reservoir for loose pulley lubricators, consisting substantially as
before set forth of a rigid part A, open at one end and terminating at its other end
in a tubular neck B and a flexible part D, the open end of which is secured to the
open end of the rigid part A to form a single vessel."
4th. The combination, substantially as specified, of the stem F, cap C, and
tubes E, with the rigid part A, neck B, the flexible part D, and weight g.
5th. The combination substantially as specified of the stem F, the curved
tubes E, and cap C, with a reservoir suspended from said cap between the tubes,
said reservoir having a weighted flexible part D.
Dated this 22nd day of October 1884
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