Improvements in Lubricating Appliances.
Year: 1891

page_text: Date of Application, 3rd Nov., 1891
Complete Specification Left, 21st Jan., 1892-Accepted, 27th Feb., 1892
PROVISIONAL SPECIFICATION.
Improvements in Lubricating Appliances.
We, THOMAS PARKER Works Director of The Electric Construction Corpo-
ration Limited of Wolverhampton in the County of Stafford and EDMUND
SCOTT GUSTAVE REES of Wolverhampton aforesaid Electrical Engineer to said
Corporation do hereby declare the nature of this invention to be as follows:-
:-
This invention relates to lubricating devices in which the lubricant is pumped so
as to be continuously supplied to the part to be lubricated the invention having for
its object to provide appliances which are efficient in action and which can be
applied in situations in which such appliances as hitherto constructed are not
applicable the same lubricant also lubricating the pumping appliances. The
lubricant is pumped from the receptacle therefor by means of a piston working in a
cylinder suitably secured to the bearing or other part in which lubrication is to be
effected the stem of the piston protruding from the cylinder and being operated in
the cylinder by the movement of a part of the machine in which lubrication is to be
effected such as by an eccentric collar or cam ring formed on or fixed to a shaft
rotating in the bearing and its return motion may be effected by a spring so that
as the shaft rotates the piston works in the cylinder and draws lubricant from the
receptacle and pumps it through the pump and through pipes or passages to the
place where the lubricant is to be supplied from, which surplus returns to
the receptacle to be again circulated through the system. The number of cams or
eccentric surfaces on the collar or ring by which the piston is operated may be one
or more so as to reciprocate the piston the necessary number of times during each
rotation of the shaft. The inlet and outlet passages for the lubricant are preferably
controlled by ball valves and the lubricant may be made to pass through passages
in the piston itself.
Dated this 2nd dow of Navamber 1801
J. H. JOHNSON & Co.,
47, Lincoln's Inn Fields, London, Agents.
COMPLETE SPECIFICATION.
Improvements in Lubricating Appliances.
I, THOMAS PARKER, Works Director of the Electric Construction Corporation
Limited of Wolverhampton in the County of Stafford and EDMUND SCOTT
GUSTAVE REES of Wolverhampton aforesaid Electrical Engineer 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 lubricating devices in which the lubricant is pumped so
as to be continuously supplied to the part to be lubricated the invention having for
its object to provide appliances which are efficient in action and which can be
applied in situations in which such appliances as hitherto constructed are not
applicable the same lubricant also lubricating the pumping appliances. The
lubricant is pumped from the receptacle therefor by means of a piston working in
a cylinder suitably secured to the bearing or other part in which lubrication is to
be effected the stem of the piston protruding from the cylinder and being operated
in the cylinder by the movement of a part of the machine in which lubrication is to
be effected such as by an eccentric collar or cam ring formed on or fixed to a shaft
rotating in the bearing and its return motion may be effected by a spring so that
as the shaft rotates the piston works in the cylinder and draws lubricant from the
ID 17

page_text: receptacle and pumps it through the pump and through pipes or passages to the
place where the lubricant is to be supplied from which surplus returns to the
receptacle to be again circulated through the system. The number of cams or
eccentric surfaces on the collar or ring by which the piston is operated may be one
or more so as to reciprocate the piston the necessary number of times during each
rotation of the shaft. The inlet and outlet passages for the lubricant are preferably
controlled by ball valves and the lubricant may be made to pass through passages
in the piston itself.
The figures in the accompanying drawings are illustrations of the best means
with which we are acquainted for carrying our invention into effect.
Figure 1 and 2 are vertical sections at right angles to each other of an arrange-
ment of lubricating device according to this invention. The lubricant is drawn
from a receptacle (not shewn in the drawings) by means of a piston A working
in a cylinder B secured to the bearing X in which lubrication is to be effected the
said cylinder and bearing being so arranged as to enclose all the working parts of
the device. The stem A² of the piston A protrudes from the cylinder B and is
operated in one direction by means of cam surfaces on a collar or ring C formed on
or fixed to the shaft Y rotating in the bearing which it is desired to lubricate.
The return motion of the said piston is effected by means of a spring D arranged
within the cylinder B above the piston A. The piston A in its upward movement
compresses the spring D and draws in the lubricant from the receptacle_through
the passage a and past the valve b into the interior of the cylinder B and on the
return stroke of the piston effected by the spring D the lubricant passes up by
the passages c (formed in the piston) and past the valved into the upper part of the
cylinder B above the piston whence it passes into the passage e and by the pipe f
to that portion of the bearing which it is desired to lubricate. For this purpose
the pipe fis shewn as entering a fitting F passing through the bearing and having
a passage therein for the lubricant to pass to the shaft Y. If desired the lubricant
may be caused to pass from the pipe finto splayed passages in the bearing so as to
; efficiently distribute the lubricant over the axle to be lubricated.
d' is a pin fixed in the piston for keeping the valve d in position. The stem of
the piston A is provided with recesses a into which lubricant enters and so this
stem is efficiently lubricated and the lubricant is also prevented from leaking down
the stem.
Figures 3 and 4 shew in sections at right angles to each other a modification
wherein the parts which correspond with those shewn in Figures 1 and 2 are
marked with the same letters of reference. The arrangement is substantially the
same as that shewn in Figures 1 and 2 the principal difference being that the
outlet passage e is led down to a lower level and the pipe f is correspondingly
lowered in position so as to allow the piston to be taken out without disturbing
the pipes.
Figures 5 and 6 shew a modification in which the arrangement is such that the
lubrication is performed on that portion of the shaft which is situated immediately
beneath the lubricating device. The device consists of a piston and a cylinder
secured to the bearing X and operated by the motion of the cam surface C and
spring D as described with regard to the preceding figures and the parts which
corresponds thereto are marked with the same letters of reference. The lubricating
liquid is drawn in as hereinbefore described by the passages a cc and valves b
and d in the cylinder and piston into the upper part of the cylinder it then returns
by the passages fand. f formed in the piston A. and piston stem A' to the bottom
of the cylinder whence it passes by the splayed passages f' in the bearing to the
surface of the shaft Y to be lubricated.
Figure 7 shews another modification wherein the movement of the piston A
under the action of the cam or the like effects the expulsion of the lubricant whilst
the motion for the drawing in of the lubricant is effected by the spring D. The
piston A is hollow and fits over an inner hollow portion A which contains the
spring D. The lubricant is drawn in through the passage a and valve b as before

page_text: as the piston A is moved upward by the spring D and by the return stroke of the
said piston A the lubricant is forced out through the passage e ball valve d and
passage f to the part which it is desired to lubricate. a are recesses formed in the
piston A and inner portion A³ for receiving lubricant for lubricating these parts
and preventing leakage.
Figures 8 and 9 show another arrangement according to this invention in which
the lubricant after lubricating the bearings passes off to the oil chamber where it
is filtered and again pumped to the part to be lubricated whereby a circulation of
the lubricant is maintained. In this arrangement the pump is covered by the
lubricant which prevents, in starting up, any chance of failure which might other-
wise arise by the sucking of air through bad joints which might exist.. A is the
piston working in a cylinder B and provided with a stem A' operated by the cam
surface C and the spring D contained in a hollow part formed in the piston A.
The cylinder and piston are enclosed within an oil receptacle E secured to the
bearing X and having windows at n for inspecting the interior. As the shaft
rotates, and the pump is operated, lubricant is drawn into the passage a from the
receptacle E past the valve b into the cylinder B and on the return stroke of the
piston it is forced past the valve d and through the passage e into the pipe f by
which it is conducted to the part to be lubricated. Surplus lubricant working out
from the bearings passes down by the passages g whence it flows into a filtering
device such as the tray k and filters therefrom into the tray from which it passes
back into the oil receptacle E to be again used. m are supports formed with
shoulders for holding the trays in position.
Figures 10 and 11 shew an arrangement for circulating the lubricant in which
the oil receptacle is arranged below the bearing and receives the waste oil from the
bearings. The oil is drawn from the receptacle E by means of the lubricating
device B which is similar to those hereinbefore described the lubricant entering the
lubricator B through the pipe whence it is passed to the bearing X as herein-
before described. The surplus lubricant is conducted by pipes 9 g from the
bearings X to troughs h h arranged on either side of the pedestal J and connected`
to the oil receptacle E by means of pipes ³ ³ through which the lubricant passes
onto the trays k k through which it filters and drops into the receptacle E which
has preferably a sloping bottom so as to ensure a proper depth of oil to be con-
tinually drawn off by the pipe e whose inlet is shewn as being provided with a
perforated shield *.
It will be evident that in the foregoing arrangements in situations where it may
be convenient to use a cam groove to operate the piston that its stem may have a
projection engaging in such groove so that the piston is operated in both directions
by the said groove instead of a spring being used to effect the movement of the
piston in one direction.
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 :-
First. A lubricating device having a piston enclosed and working in a cylinder
the stem of the said piston being operated by the movement of an eccentric collar
or the like formed on or fixed to a part of the machine which is to be lubricated
and the whole being enclosed and operated and self lubricating substantially as
hereinbefore described.
Second. The several general arrangements and combinations of parts constituting
the lubricating devices substantially as hereinbefore described and illustrated in
the several figures of the accompanying drawings.
Dated this 19th day of January 1892.
J. H. JOHNSON & Co.,
47, Lincoln's Inn Fields, London, Agents.