Improvements in Lubricators.
Year: 1893

page_text: Date of Application, 13th Mar., 1893
Complete Specification Left, 27th Nov., 1893-Accepted, 30th Dec., 1893
PROVISIONAL SPECIFICATION.
Improvements in Lubricators.
We THOMAS GREENWOOD, and JOHN WILLIAM WHITELEY Engineers, of
Sowerby Bridge, in the County of York do hereby declare the nature of this
invention to be as follows:-
In our improved lubricator, we have a pump or pumps, to force oil through a
sight feed or a number of sight feeds, the pump or pumps being so constructed that
The ram of
the feed can be regulated by their means, in the following manner.
the pump is inside a reciprocating cylinder, this cylinder is moved backwards and
forwards by means of a lever, ratchet, or by some other suitable method.
plunger inside the cylinder projects through one end to a suitable distance, and on
the force side of the plunger is reduced in diameter, and passes through the bottom or
end of the cylinder, projecting for a suitable distance.
The
As this cylinder works to and fro, inside a box of a suitable length, it carries
with it the plunger. At the plunger end, and through the box, there is an
adjustable screw, which can be screwed in or out at pleasure. When the cylinder is
at the end of its stroke, nearest to the adjustable screw, it forces the plunger to the
bottom of its stroke; and when the cylinder works back, the projection on the other
end of the plunger comes against a stop, and pushes the plunger outwards.
By this means the length of stroke given to the plunger, inside the movable
cylinder, can be regulated by the adjustable screw.
When the plunger is forced out by the projection that passes through the bottom
of the cylinder, the position of the cylinder being at the end of its stroke, furthest
from the adjustable screw, there is a port, which opens into the oil space, allowing
the oil to fill the cylinder; and on the return stroke, when the plunger is pushed in
by the adjustable screw, it brings the port opposite an opening through which the
oil is forced out and thence through the sight feed. The movable cylinder can be
made square, or round, and the box may contain one, two or more such cylinders, a
spring or springs being placed between them, when there is more than one, to keep
them against the face of the box in which the outlet and suction are placed. The
box or boxes are placed at the bottom of an oil tank, and according to the number
of lubricators required, these can be arranged side by side, one shaft being made to
reciprocate, or work, the whole series of cylinders, each plunger being adjusted by
its own adjustable screw.
Dated this 13th day of March 1892.
THOMAS GREENWOOD.
JOHN WILLIAM WHITELEY.
COMPLETE SPECIFICATION.
Improvements in Lubricators.
We, THOMAS GREENWOOD and JOHN WILLIAM WHITELEY, Engineers, of
Sowerby Bridge in the County of York, 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 :-
In our improved lubricator we have a pump, or pumps, to force oil through a
sight feed or a number of sight feeds, the pump or pumps being so constructed that
the feed can be regulated by their means, in the following manner-The ram of the
pump is inside a reciprocating cylinder, this cylinder is moved backwards and
forwards by means of a lever, ratchet, or by some other suitable method.
The

page_text: plunger inside the cylinder projects through one end to a suitable distance, and on
the force side of the plunger is reduced in diameter, and passes through the bottom
or end of the cylinder, projecting for a suitable distance.
As this cylinder works to and fro, inside a box of a suitable length, it carries
with it the plunger. At the plunger end and through the box, there is an
adjustable screw, which can be screwed in or out at pleasure. When the cylinder
is at the end of its stroke, nearest to the adjustable screw, it forces the plunger to
the bottom of its stroke; and when the cylinder works back, the projection on the
other end of the plunger comes against a stop, and pushes the plunger outwards.
By this means, the length of stroke given to the plunger, inside the movable
cylinder, can he regulated by the adjustable screw.
When the planger is forced out by the projection that passes through the bottom
of the cylinder, the position of the cylinder being at the end of its stroke, furthest
from the adjustable screw, there is a port, which opens into the oil space allowing
the oil to fill the cylinder; and on the return stroke, when the plunger is pushed
in by the adjustable screw, it brings the port opposite an opening through which
the oil is forced out and thence through the sight feed.
The movable cylinder can be made square, or round, and the box may contain
one, two, or more such cylinders, a spring or springs being placed between them,
when there is more than one, to keep them against the face of the box in which the
outlet and suction are placed.
The box or boxes are placed at the bottom of an oil tank, and according to the
number of lubricators required, these can be arranged side by side, one shaft being
nade to reciprocate or work the whole series of cylinders, each plunger being
adjusted by its own adjustable screw.
The object of our invention is to force oil or other lubricant into the part or
parts of a machine or engine or any other apparatus in spite of any opposing
pressure there may be.
Figures No. 1, 2, and 3 in the accompanying drawings show vessels, A., for con-
taining the lubricant in which we place one, two, or more pumps as may be required.
Figs. 2 and 3 show a disc B. on a shaft working in a bearing on the side of the
vessel A., which is rotated by an ordinary ratchet wheel and lever, or by any other
suitable means. This is connected to the lever D. Figs. 2 and 3., by the connecting
rod or link C., and thence through the shaft E. and the toothed quadrant F.
Fig. 2., to the pump barrels G. which have teeth cast on their upper side to gear
with the toothed quadrant F., thus giving the pump barrels a reciprocating
motion.
The pump barrels G. may be square, round, or any other suitable shape, and
may be worked by any other means that will give them a reciprocating motion.
The pump barrel G. works against a suitable face on the frame H., Figs. 1
and 3., in which two ports M. M. Fig. 1. are cut at a suitable distance apart,
through which the lubricant is forced to the parts to be lubricated. There are
corresponding ports N. N. Figs. 1 and 3. cut in the side of the pump barrels,
through which the lubricant is drawn in (shown O. O. in Fig. 1) from the tank A.
The pump barrels are kept up to their face by the wedge P. Figs. and 3. which
can be tightened up and locked fast by a nut at each end so as to ensure there
being no leakage between the faces. When the pump barrel approaches the
adjusting screw I. Figs. 1 & 2 in the side of the vessel A., and the end of the
ram Q. touches the adjusting screw I., the ports N in the pump barrel are opposite
the inlet ports O. in the face against which it works, and on completing its stroke
the ram is pushed back and draws the lubricant into the barrel. The barrel
then works back carrying the ram with it until the ports N. in the barrel, come
opposite to the outlet ports M, when the ram comes against the stop K. Fig. 2.
and is pushed home, forcing the lubricant through the outlet port M. to the parts
to be lubricated.
The lubricant may be passed through a sight feed or not as desired. By
screwing or unscrewing the adjusting screw I. Figs. 1 and 2. in the end of the

page_text: vessel A., the stroke of the ram can be lengthened or shortened at pleasure, thus
regulating the quantity of lubricant drawn into the barrel and forced to the points
requiring lubrication.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
1. The improved lubricator substantially as described and shown in drawings.
2. In a lubricator, the use of a pump or pumps with a variable stroke of ram,
and an arrangement of ports whereby the lubricant is drawn into and forced out of
such pump or pumps at each stroke against any pressure.
3. The method of using any number of independent plungers or pumps working
in oil tanks or chambers in the manner described and shown in drawings, each
plunger or pump feeding a separate part for lubricating purposes.
Dated this 27th day of November 1893.
THOMAS GREENWOOD.
JOHN WM. WHITELEY.