IMPROVEMENTS IN LUBRICATORS FOR LOOSE PULLEYS; WHEELS AND THE LIKE
Year: 1888

page_text: RESER
Date of Application, 1st May, 1888
Complete Specification Left, 26th Jan., 1889
Complete Specification Accepted, 2nd Mar., 1889
I, JOHN KITTLE CLARKE, of 18 Grey Friars Road Ipswich in the County of
Suffolk, engineer, do hereby declare the nature of my invention for "IMPROVEMENTS
IN LUBRICATORS FOR LOOSE PULLEYS; WHEELS AND THE LIKE" to be as follows
:-
When loose pulleys, wheels or other revolving parts have, oil cups or feeders attache
to them for the purpose of constant lubrication, it frequently happens that the efficiency
of the lubricator is entirely destroyed by the centrifugal action; notably so when the
ordinary syphon lubricator with a cotton wick is employed, the centrifugal action in
such cases causing the wick to fly out of the tube altogether, unless fitted in very light,
after which the oil is quickly wasted and the lubrication ceases.
:
Now my improvement consists in a mode of attaching any ordinary oil feeder (but
preferably one fitted with a cotton wick) in such a manner that the centrifugal action
will not affect the proper action of the lubricator. Instead of fixing the lubricator as
usual into a hole in the boss of the pulley or wheel so that it projects radially from the
centre, I attach the lubricator to a short bent tube, one end of which is fixed into the
boss of the pulley, and to the other end of the tube I fix the lubricator; the bend of
the tube is such that the lubricator itself when in position lies in a tangent to the
circle in which it revolves. The centrifugal action will thus have no tendency to
displace the cotton wick in the tube; and I have found in practice that the lubrication
is effected with as much certainty as in the stationary oil cups of ordinary fixed
bearings.
And my invention further consists in an improved glass oil cup, which I prefer to
use with my bent-pipe-attachment. The body of the oil cup is of a curved form, so as
to be when in position more or less concentric with the boss of the pulley, and has a
hole at the bottom in which the bent pipe is to be secured, and the upper end is
provided with an opening having a coarse screw thread inside to receive an ordinary
cork stopper.

page_text: COMPLETE SPECIFICATION.
Improvements in Lubricators for Loose Pulleys, Wheels, and the like.
I JOHN KITTLE CLARKE Engineer of 18 Grey Friars Road, Ipswich in the County.
of Suffolk 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 :-
When loose pulleys, wheels, or other revolving parts have oil cups or feeders
attached to them for the purpose of constant lubrication, it frequently happens that
the efficiency of the lubricator is entirely destroyed by the centrifugal action; notably
so when the ordinary syphon lubricator with a cotton wick is employed, the centrifugal
action in such cases causing the wick to fly out of the tube altogether, unless fitted in
very tight, after which the oil is quickly wasted and the lubrication ceases.
Now my improvement consists in a mode of attaching any ordinary oil feeder (but
preferably one fitted with a cotton wick) in such a manner that the centrifugal action
will not affect the proper action of the lubricator. Instead of fixing the lubricator as
usual into a hole in the boss of the pulley or wheel so that it projects radially from the
centre, I attach the lubricator to a short bent tube, one end of which is fixed into the
boss of the pulley, and to the other end of the tubo I fix the lubricator; the bend of
the tube is such that the lubricator itself when in position lies in a tangent to the
circle in which it revolves. The centrifugal action will thus have no tendency to
displace the cotton wick in the tube; and I have found in practice that the lubrication
is effected with as much certainty as in the stationary oil cups of ordinary fixed
bearings.
And my invention further consists in an improved glass oil cup, which I prefer to
use with my bent pipe attachment. The body of the oil cup is of a curved form, so as to
be when in position more or less concentric with the boss of the pulley, and has a hole
at bottom in which the bent pipe is to be secured, the upper end is provided with an
opening having a coarse screw thread inside to receive an ordinary cork stopper.
The accompanying drawing shows my improved lubricator attached to an ordinary
loose pulley.
A is the oil cup of a curved form as shown, B is the bent tube with the end c fixed
into the boss of the pulley, the other end d is fixed into the oil cup A. The arrow
indicates the direction in which the pulley must revolve; if the pulley is to revolve in
the opposite direction, the lubricator must be reversed so that the end d of the tube B
shall always run in advance.

page_text: 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 :-
1st. The bent tube, one end of which is fixed into the boss of the pulley and to the
other end is fixed the lubricator; the bend of the tube being such that the forward
end lies in a tangent to the circle in which it revolves.
2nd. In combination with the bent tube the curved oil cup as described and
shown.