IMPROVEMENTS IN LUBRICATORS
Year: 1884

page_text: I, AUGUST BAUR of Cologne in the Empire of Germany, merchant, do hereby
declare the nature of my invention for "IMPROVEMENTS IN LUBRICATORS to be
as follows:-
According to the present invention, lubricators for solid or viscous lubricants
are constructed of a cylindrical vessel containing the lubricant, into which is fitted
a plunger or piston to the head of which is fixed a cylindrical cap that fits over
the outside of the cylinder and is provided with a series of holes or notches, so
arranged in combination with one or more pins or projections fixed on the cylinder,
that on first pressing the plunger and cap down to a certain extent, so as to force
a certain quantity of the lubricant out of the cylinder, and then turning the cap
and plunger slightly round the pin or pins is or are made to catch in one of the
notches or holes, so as to hold the cap or plunger in that position until a further
supply of lubricant is required.
According to one arrangement of the above described lubricator the cylindrical
cap that fits over the outer surface of the cylinder has, at two opposite points,
longitudinal bulges forming channels in which fit pins fixed to the cylinder, and in
the sides of such channels are formed rows of slots, so that on pressing the plunger
and cap down to a certain extent, and then turning them slightly, each pin will be
made to enter one of the slots so as to hold the cap and plunger in that position
until the next supply of lubricant is required. The distances between the con-
secutive slots being made to correspond with the quantity of lubricant required to
be supplied to the bearing at one time, it will be seen that by depressing the piston
from one slot to the next one at given intervals of time, a uniform supply of
lubricant will be insured.
In order to prevent the pins from becoming disengaged from the slots through
vibration of the bearing or other part, one or both of the pins may be provided
with a spring for holding the cap in position.
According to another modification the cap is formed with a single longitudinal
slot instead of the said channels, in the sides of which are formed notches into
which the pin fixed on the cylindrical vessel is made to catch on turning the cap
slightly in one direction or the other, after pressing it downwards as before. In
order to prevent the pin from becoming disengaged from the notches through
vibrations, a longitudinal pin is provided passing through two eyes on the cap,

page_text: which pin is withdrawn when the plunger and cap require to be shifted, and which,
on being inserted after the pin has been made to enter one of the notches prevents
it from coming out again.
The longitudinal pin can be held in position by a spring so as to prevent it from
falling out when the lubricator is applied to parts of machinery with which it is
made to revolve.
The slot of the cap is made with an opening at bottom, in order to enable the pin
on the vessel to pass out of it when the cap and plunger require to be withdrawn
for filling the vessel.
The notches may be numbered for readily determining the quantity of lubricant
supplied from time to time.
If, in either of the above arrangements, the cap be turned so that the pins do
not enter the slots or notches, and the plunger be loaded to any desired extent, the
lubrication will be automatically effected, as the plunger will be gradually moved
downwards, so as to force out the lubricant.
If it be desired to enable the lubricator to be employed automatically in this
manner the cap may conveniently be provided with a second slot, or channel,
without notches or holes, so that, by withdrawing the notched slot from the pin
and turning the cap so as to cause the pin to enter the slot without notches, there
will be no chance of the pin interrupting the automatic action by entering the
notches in consequence of vibrations.
In a similar manner, additional channels without slots may be provided in the
first described arrangement.
1
ABEL & IMRAY,
Agents for the Applicant,
28, Southampton Buildings,
London, W.C.

page_text: I, AUGUST BAUR, of Cologne in the Empire of Germany, Merchant do hereby
declare the nature of my invention for "IMPROVEMENTS IN LUBRICATORS" and in
what manner the 'same is to be performed to be particularly described and
ascertained in and by the following statement:-
According to the present invention, lubricators for solid or viscous lubricants are
constructed of a cylindrical vessel containing the lubricant into which is fitted a
plunger or piston to the head of which is fixed a cylindrical cap that fits over the
outside of the cylinder and is provided with a series of holes or notches so arranged
in combination with one or more pins or projections fixed on the cylinder, that on
first pressing the plunger and cap down to a certain extent, so as to force a certain
quantity of the lubricant out of the cylinder, and then turning the cap and
plunger slightly round, the pin or pins is or are made to catch in one of the notches
or holes so as to hold the cap or plunger in that position, until a further supply of
lubricant is required.
Fig. 1 of the accompanying drawings shews a sectional elevation and Fig. 2 a plan
of one arrangement of the above described lubricator. a is the cylindrical vessel,
into which is accurately fitted the piston or plunger c, to the head of which is
fixed the cylindrical cap b, that fits over the outer surface of the cylinder. This
cap has at two opposite points longitudinal bulges d forming channels in which fit
pins e, fixed to the cylinder, and in the sides of such channels are formed rows of
slots ff, so that on pressing the plunger and cap down to a certain extent, and
then turning them slightly, each pin will be made to enter one of the slots, so as
to hold the cap and plunger in that position until the next supply of lubricant, is
required. The distances between the consecutive slots being made to correspond
with the quantity of lubricant required.to be supplied to the bearing at one time,
it will be seen that by depressing the piston and cap from one slot to the next one
at given intervals of time, a uniform supply of lubricant will be insured.
In order to prevent the pins from becoming disengaged from the slots through
vibration of the bearing or other part, one or both of the pins may be provided
with a spring for holding the cup in position.
In the modification shewn in elevation and plan at Figs. 3 and 4 the cap b¹ is
formed with a single longitudinal slot instead of the channels d, in the sides of
which are formed the notches f', into which the pin e¹ fixed on the cylindrical
vessel a¹ is made to catch on turning the cap slightly in one direction or the other
after pressing it downwards as before.. In order to prevent the pin el from
becoming disengaged from the notches through vibrations, a longitudinal pin g, is
provided passing through two eyes on the cap, which pin is withdrawn when the
plunger and cap require to be shifted, and which on being inserted after the pin
has been made to enter one of the notches, prevents it from coming out again.
The pin g is slightly bent, so that it is held in position by a spring action, which
prevents it from falling out.
Fig. 5 shews an elevation and Fig. 6 a plan of a modification in which, in place
of the lateral notches or slots of the previous arrangements, a series of notches or

page_text: serrations are made to project from the surface of the cap b', while the pin e² is
fixed on the end of a spring arm attached to the vessel a², so that on depressing the
cap the pin e will spring from one notch into another.
If, in either of the above arrangements, the cap be turned so that pins e, e¹, et do
not enter the slots or notches, and the plunger be loaded to any desired extent, the
lubrication will be automatically effected, as the plunger will be gradually moved
downwards so as to force out the lubricant.
If it be desired to enable the lubricator to be employed automatically in this
manner, the cap may conveniently be provided with a second slot, or channel
without notches or holes, as indicated in dotted lines at Fig. 3, so that by with-
drawing the notched slot from the pin and turning the cap so as to cause the pin
to enter the slot without notches, there will be no chance of the pin interrupting
the automatic action by entering the notches in consequence of vibrations. In
a similar manner, additional channels without slots may be provided in the
arrangement' at Figs. 1 and 2.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim in respect of lubricators in which the descent of a piston or plunger is
caused to force the lubricant out of the vessel containing the same, is
1, The use of a cap fixed to the piston or plunger and fitting over the cylindrical
vessel, which cap has a row of slots, notches or holes into one or other of which
a pin or projection connected to the vessel enters so as to hold the piston in any
position into which it is moved, substantially as and for the purposes herein
described.
2, In combination with the vessel a with pins e, the plunger c with cap b,
channels d, and slots f, arranged and operating substantially as herein described
with reference to Figs. 1 and of the drawings.
3, In combination with the vessel a¹ with pin e', a piston or plunger with slotted
cap b' having notches f¹ and pin g, arranged and operating substantially as herein
described with reference to figs. 3 and 4 of the drawings.
4, In lubricators such as are referred to in the preceding claims, providing
additional channels or slots without notches or holes for the pins e or el to work in
when the supply is required to be effected automatically by loading the piston.
5, In combination with the vessel a' with spring pin e², a piston or plunger with
cap having a row of notches or serrations into which the pin e takes,
substantially as herein described with reference to Figs. 5 and 6 of the drawings.
Dated this 6th day of February 1885.