Improvements in and relating to Lubricators.
Year: 1892

page_text: COMELDIN DI PARTIATION.
[Communicated from abroad by MARTHA J. MARSDEN, of Bridgetown, St. Louis
County, Missouri, United States of America, Manufacturer.]
Improvements in and relating to Lubricators.
I, HENRY HARRIS LAKE, of the firm of Haseltine Lake & Co., Patent
Agents, 45 Southampton Buildings, in the County of Middlesex, 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:-
The present invention when fully carried out comprises an oil or grease cup
attached to an hydraulic cylinder and having means whereby its contents are injected
into the cylinder to oil the same at each stroke of the cylinder piston said piston in
its movement actuating mechanism for opening and closing the passage leading from
said cup to the cylinder, substantially as is hereinafter described.
In the accompanying drawings I have shown how my said invention may be
conveniently and advantageously carried into practice.
Figure 1 is a longitudinal sectional elevation exhibiting the improved mechanism
and also a portion of an hydraulic cylinder sufficient to enable the working of the
improvement to be understood, the parts being in the position they occupy before
the piston has been moved into the position for adjusting the valvular orifices of the
grease cup.
Figure 2 is a similar view showing the piston moved out so as to engage with but
not to operate the valve mechanism.
Figure 3 is a similar view the piston having completed its stroke and the passage
for supplying the grease to the cylinder being open, and
Figure 4 is an end elevation of the device looking in the direction of the arrow in
Figure 4.
The same letters of reference denote similar parts.
The cylinder A is of the usual construction saving that as it is modified or
supplemented for the improvement under consideration. B represents any vessel or
cup suitable for containing the lubricating material C. If said material is
sufficiently fluid it will when the passage is open, flow into the cylinder,
but in many instances it is desirable to use grease for the lubricating material
or some form of lubricating material which requires an application of force
to effect its delivery into the cylinder; provision is made for producing the
downward pressure upon the contents of the cup. G represents a piston which
by reason of its weight and the spring g, presses downward upon the material C
with sufficient force to cause the said material to flow readily into the cylinder when
the passage E, leading from the cup to the cylinder is opened by means of a valve F
the passage E may be opened or closed or partly opened, as may be desired. The
cylinder is suitably perforated at a to complete the passage E. When the cylinder
is to be lubricated the valve F is suitably opened to permit of the passage of the
lubricating material. The introduction of the lubricating material into the cylinder
however is effected at intervals, namely at each stroke of the cylinder piston D and
to this end another valve H is employed. This valve is inserted in the passage E
substantially as shown and the action of the piston is communicated to the stem / to
open the valve preferably in the following manner; the piston is provided with a
projection which is preferably in the form of a roller I journalled in an arm i which
is suitably attached to the piston; a lever J is pivoted at ; to a bracket N which

page_text: by means of the bolt R is fastened to the cylinder; the lower end J' of said
lever extends into the path of the movement of the roller I; the upper end
of the lever J by means of the rod L is connected to the lever h¹ of the valve
stem h.
The action of the parts is illustrated in Figures 1, 2 and 3; in Figure 1 the
piston is withdrawn into the cylinder, and the valve H, is closed; in Figure 2 the
piston has moved outward, and the roller I has encountered the lever J; at this
point in the stroke of the piston the device preferably employed for distributing the
lubricating material is nearly in position for receiving the lubricant; this device is
attached to the piston upon the outer side thereof, moving to and fro with the same,
and consisting as follows:
M represents a ring composed, say of copper which by means of the bolts d is
attached to the piston, the ring is projected first horizontally from the piston, and
then radially outward at m¹ to meet or come quite near to the internal surface of the
cylinder and thereby to inclose a space N, in front of the piston and next to the
inner surface of the cylinder suited to receive and carry the lubricant delivered from
the passage E; a part O composed preferably of a piece of rubber tubing, and
serving partly as a packing and partly as a lubricant-distributor, is secured to the
ring within its flange m¹.
In the position of the piston shown in Figure 2 said part O, is opposite the outlet
from the passage E, and the piston has not yet completed its stroke, and the valve H,
is still closed. In Figure 3 the piston has moved outward to the end of its stroke;
its motion by means of the parts G J and L has been communicated to the stem h
and the valve H has been thereby opened and the lubricant has been injected into
the space
N; the piston now makes its return stroke, and as the piston projection G
withdraws from the lever J, a weight P, upon an arm of the lever Jacts to turn
said arm and lever again into the position shown in Figures 1 and 2, thereby closing
the valve H. The said valve H and the parts for operating it remain in that
position until the piston is again moved outward when the operation is repeated.
The packing O, is held in place by any suitable means, such as the rivets which
pass through the ring M into the packing.
0,
Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed, as communicated to me by my
foreign correspondent, I declare that what I claim is :-
First. In a piston-lubricator, the combination of the cylinder the piston D working
therein and having an arm i, the lever J in front of the cylinder, and the oil pipe E,
and valve H, and mechanism connecting the lever J with said valve H, substantially
as and for the purpose set forth.
Second. In a piston-lubricator, the combination of the cylinder having thereon
the ring M, inclosing the space N in front of the piston and the packing and
lubricant distributor O, secured to the ring, the armi and the oil pipe having
valve H, and mechanism for automatically opening and closing same, substantially as
described.
Third. In a piston-lubricator, the combination of the cylinder and the piston,, as
described, operating in it and having an arm i, the pipe E, communicating with the
interior of the cylinder at a, and the weighted lever J pivoted to the bracket K, the
rod L, and the valve. H in said pipe, the said rod connected with and adapted to
operate said valve, all substantially as described.
Fourth. In a piston-lubricator, the combination of the cylinder carrying an
automatic force-feed reservoir, as set forth and a piston operating in it and provided
with armi, of the pipe E, communicating with the interior of the cylinder at a, the
weighted lever J, pivoted to the bracket K, the rod L and the valve H in said
pipe E, said rod L being connected with and adapted to operate said valve,
substantially as shown and described.
Fifth. The combination of the cylinder, the lubricant cup, the passage leading

page_text: from said cup to the interior of said cylinder, and the piston within said cup for
forcing the lubricant from said cup, substantially as described.
Dated this 20th day of April 1892.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.