Year: 1896

page_text: I, SAMUEL FRAZER of Lawnbrook Avenue, Belfast, in the County of Antrim, Ireland,
Mechanic, do hereby declare the nature of this invention to be as follows:-
This invention relates to lubricators attached to rotating parts of machinery and is
designed to provide a lubricator which will be in action while such machinery is in
motion but which is closed or out of action when such machinery is stopped.
It consists essentially in constructing the lubricator with a plug to fit the delivery
tube and a spring to hold same in position so that the centrifugal force will remove
it or carry it outwards to allow oil to enter the tube while running and the spring
will move it back again into the tube when stopped to force the oil down to the
bearing or journal.
I form the lubricator with cup to contain the oil and a nipple by which it is
attached to a pulley or rotating part of a machine and a lid or cover of suitable
construction or design.
Internally I prefer to fix a delivery tube projecting into the interior of the cup any
desired distance and' to the receiving end of this tube I fit a plug or other valve or
closing device preferably of such a shape as to be capable of forcing oil or lubricant
down the tube.
This plug is preferably in the form of a stud affixed to a disc or cross bar to which
two slide rods are attached with a second disc at the other end to fit over and slide
upon the delivery tube. A light spiral spring is placed against one of the discs to
force the plug or valve into the tube.
In action the spring will tend to hold the plug or valve closed but the centrifugal
movement will overcome the force of the spring and lift the stud or plug out of the
delivery tube allowing oil to enter the tube. When the machine comes to rest and
the centrifugal motion ceases the spring acting on the disc or discs pushes or draws
the plug or valve back into the delivery tube which acting on the oil in the tube
causes sufficient of the oil or labricant to be forced down to lubricate the bearing or
journal.
The lubricator may be applied to loose pulleys it may be also applied to other
parts of machines such as shafts, pins, journals and other parts of machinery which
run under similar conditions.
1000

page_text: Improvements in Lubricators.
I, SAMUEL FRAZER, of Cupar Street, Belfast, in the County of Antrim Ireland, late
of Lawnbrook Avenue, Belfast, aforesaid, Mechanic, 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 :-
This invention relates to lubricators attached to rotating parts of machinery, and
is designed to provide a lubricator which will be in action while such machinery is in
motion, but which is closed or out of action when such machinery is stopped.
It consists essentially in constructing the lubricator with weighted or spring
controlled valve to close the delivery tube, so that the centrifugal force will remove it
or carry it outwards to allow oil to enter the tube while running, and the weight or
spring will move it back again into the tube when stopped, to force the oil down to
the bearing or journal.
It will be fully described with reference to the accompanying drawings.
Fig. 1. Sectional elevation.
Fig. 2. Plan with cover removed.
Fig. 3. Sectional plan on line xx Fig. 1.
Fig. 4. Sectional elevation showing raised position of cross head.
The cup A of the lubricator to contain the oil, the nipple B which is attached to
pulley or rotating part to be oiled or lubricated and the lid or cover C are all of any
ordinary or suitable construction or design.
In the oil cup A I fit a delivery tube D projecting into the interior any desired
distance, through which the oil to supply the bearing must flow. The delivery tube
D is preferably screwed into the bottom of the oil cup A, but may be fixed thereto in
any other suitable manner.
To the inlet end of the delivery tube D I fit a valve E capable of closing the inlet
to the tube. The valve E is preferably in the form of a plug or piston, or of other
shape capable of forcing the oil or lubricant down the delivery tube D, and is attached
to a cross head F capable of sliding up and down in the oil cup A.
The cross head F is preferably carried by two guide rods f passing through holes in
a second cross head or guide bar G affixed to the end of the delivery tube D inside
the cup and attached at their lower ends to a disc or ring H sliding over the exterior
of the tube D.
The valve E may be guided by the guide rods f passing into the brackets attached
to the cover C or to the sides of the oil cup A,,or in other suitable manner.
The disc or ring H forms a weight to close the valve E when the oil cup A and
delivery tube D are upright, but if desired a light spring may be inserted between
it and the guide bar G.
Attached to the cross head F is a valve spindle k carrying a valve K', which closes
the outlet end of the delivery tube D, when the valve E is open, so that the tube D'is
alternately closed at one or the other.
The lubricator may be constructed either with or without the valve K to close the
outlet end of the delivery tube D, but when used without the valve K I prefer to
employ a spring to close the valve E..
In action the weighted diso H (or a spring) will tend to close the valve E when the
lubricator is upright, and at the same time open the valve K, thereby allowing
the lubricant that has filled the delivery tube D to find its way to the bearing. The
centrifugal force of the rotating pulley or other mechanism to which the lubricator is
affixed, will overcome the weight of the disc (or the force of the spring) removing the
valve E from the delivery tube, allowing oil to enter the tube, but at the same time
losing the outlet end of the tube until lubrication is again required.

page_text: When the centrifugal force of the rotating pulley or the movement of the part to
be lubricated ceases, the weight spring acting on the disc or discs pushes or draws the
plug or valve E back into the delivery tube 1) and opens the valve K. The plunger
valve E acting on the oil in the tube D, causes sufficient of the oil or lubricant to be
forced down to lubricate the bearing or journal.
The lubricator may be applied to loose pulleys. It may be applied to other parts
of machines such as shafts, pins, journals and other parts of machinery which run
under several conditions.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed I declare that what I
claim is.
1. A lubricator constructed with a delivery tube extending internally and closed or
controlled by a valve operated by a weight or spring so as to open by centrifugal force
and close when the machine is at rest by the action of the said weight or spring and
force the lubricant to the bearing substantially as described.
2. In a lubricator the combination with the oil cup and a delivery tube extending
internally of a cross head carrying valves to both ends of the delivery tube and a
weight or spring to actuate the same substantially as described and shown.
3. A lubricator having the several parts constructed and arranged in combination
substantially as described and shown.
Thatadithic 8th day of September 1897
WM. P. THOMPSON & Co.,
Manchester, Liverpool, and London, Patent Agents.