Improvements in Lubricators.
Year: 1895

page_text: Date of Application, 19th Oct., 1895
Complete Specification Left, 10th July, 1898-Accepted, 22nd Aug., 1898
BOY BIVAATIOTATION.
Improvements in Lubricators.
FRIEDRICH KAUFHOLD .in Merseburg, Germany, Engineer do hereby declare
the nature of this invention to be as follows :-
The spindles of the two pistons..are connected at their extremities by a cross-
bar with two engaging spur-wheeler which..by..their opposite rotation; cause the
pistons to rise and fall alternately.
The spur-wheels are combined with two worm-wheels, which are .moved
alternately by a sorew.
The latter, sliding on a guide, is set in motion by a crank-arm in such a manner
that at one time it is engaged with one of the worm-wheels, another time with the
other. A lever has its fulcrum, by way of a hollow, in a tap-box of which a tap key
serves to turn the lever which is connected with the screw. Aireservoir, from
which the oil is conveyed in the first place, to the tap-hollow, is supported by the
latter. The hollow has two.oponings, or perforations, which communicate with
the cylinders by three suction and pressure channels,
One of the pistons, by its descent, drives the oil through the right channel
towards the central one, whilst the other piston exhausts the oil from the reservoir,
through the left-channel; if the tap-key is turned to the right-side, the screw
slides from right to left and the contrary, effect is produced; the-left-channel
becoming a pressure, channel,.and the, right channel an exhaust: one, whilst the
central channel still continuos a pressure channel.
Dated this 18th day of October 1895.
Improvements in Lubricators.
FRIEDRICH KAUFHOLD, 'of. Merseburg in the German Empire, 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-:-
'My invention has relation to lubricators wherein two cylinders each having a
piston. are employed which by their alternately reciprocating movements.serve. to
force the lubricant to the part to be lubricated.
My invention has for its object among others to provide simple, efficient and
inexpensive means, whereby lubrication of any device or part thereof may be
uniformly lubricated, and the invention consists in the novel construction, arrange
ment and combination of parts as hereinafter fully described, illustrated in the
drawing and pointed out in the appended claim.
In the drawing
=
Fig. 1 is asentional elevation of a fabricator constructed in nerordance with m

page_text: .
Fig. 2 is a vertical sectional view at right augles to Fig. 1.
Fig. 3 is a sectional plan view.
Fig. 4 is a horizontal sectional view on line - of Fig. 2.
In carrying out my invention I provide two cylinders (a', 6') within which are
adapted to reciprocate respectively the pistons (a, b). With the said pistons are
engaged screw-spindles (2), which carry at their upper ends gear wheols (0),
and (d) meshing with each other. Integral with said gear wheels are worm
wheels (e,f) adapted to be engaged alternately by a worm-shaft or screw (g) the
extended spindle or shaft of which carries a pulloy (f") and a crank (i)
whereby said screw-shaft may be driven from any suitable source of power or
by hand.
The screw or worm portion (9) is in practica adapted to he slided so as to
engage alternately with the worm wheels (e) and (7) for which purpose it is
guided by a guide ("), and is suitably connected with an arm (h) connected with a
plug valve (n), provided with a lever or operating handle 1.
It will thus be seen that by throwing the lever 1, to one side or the other, the
worm (g), will be caused to ongage with either the worm wheel (e) or (f), to thus
reverse the direction of rotation of the screw spindles (2).
(m) indicates an oil reservoir which communicates with a channel (m') in the
valve (n), by means of ports (m2), and said valve is also provided with a
channel (m 3) which latter channel when the parts are in the position represented
in the drawings is adapted to communicate with a channel (m 4) in the casing (5)
and with the channel m³ iu communication with the eduction or feed channel (9)
which is to conduct the lubricant to the device to be lubricated. The channel (m4)
is in communication with a channel (p) which leads into the cylinder (6). The
abannel (m²) at the same time communicates with a channel (m 7) in the caring (n 5)
which channel in turn communicates with a channel (o) which leads into the
cylinder (u').
It will be noted that when the worm (g), is in gear with worm wheel (e), as
shown with the piston (a), lowered and the piston (6), in its raised position, the
valve (a) is in a position to bring the various channels into the relative position as
just above described, the lubricant having then been forced out of cylinder (a¹)
and cylinder (6) then containing Inbricant. As the piston (b), commences its
deacent the lubricant within cylinder (6') will be forced through the channels (p),
(m4), (m3), into the chanuel (m5) and the feed channel g and during the descent
of said piston (b), the piston (a), will be ascending and drawing into cylinder (a')
lubricant from the oil reservoir through channels (m2, m³, m7, o). The forcing
of lubricant to the device or part thereof to be lubricated will continue until the
piston (6), bas descended fully by which time the piston (a), will have reached its
highest limit.
By moving the lever, so as to bring the worm (g), in gear with worm
wheel (), and the chanuel (m 3) into communication with channels (m7) (g) and
channel (m) into communication with channel (m4), the lubricant in cylinder (a')
will be forced therefrom into feed channel (m5), and lubricant drawn from the
reservoir (m), into cylinder (6'). In other words the piston (a) now becomes the
force piston and the pieton (b), the auction piston, the feed channel (9), in either
caso serving for the feed of the lubricant to the device to be lubricated.
The diagrain at the right of Fig. 4 indicates the positions r¹ s'assumed by the
lever 1, when reversing the device.
·
Having now particularly described and ascertained the nature of my said
invention, and in what manuer the same is to be performed, I declare that what
] claim is :-
1. In a lubricator, the combination with the cylinders, and their pistons, of
screw spindles connected with said pistons, gear wheels ou said spindles and
engaging so as to rotate the spindles in opposite directions, worm-wheels connected
with the gear wheels, a worm adapted to be brought into engagement with either

page_text: of said worm wheels, and an oil eduction channel adapted to be brought into
communication with said cylinders alternately, as and for the purpose specified.
2. In a lubricator, the combination with the cylinders, and their pistons, of
screw spindles connected with said pistons, gear wheels on said spindles and
engaging so as to rotate the spindles in opposite directions, worm-wheels connected
with the gear wheels, a worm adapted to be brought into engagement with either
of said worm wheels, a valve in communication with an oil-supply, and having a
channel adapted to bring the cylinders alternately into communication with an
oil-eduction channel, and menus for operating the valve simultaneously with the
operation of the worm, for the purpose described.
Reusele the 0th do of Juli 1908
L. DUVINAGE,
Agent for Applicant..