AN IMPROVED ECONOMICAL CAN OR VESSEL FOR CONTAINING AND DELIVERING LUBRICATING OR OTHER FLUIDS
Year: 1862

page_text: PROVISIONAL SPECIFICATION left by Christian Collett Steenstrup at
the Office of the Commissioners of Patents, with his Petition, on the
25th June 1862.
I, CHRISTIAN COLLETT STEENSTRUP, of Horten, in the Kingdom of Norway'
do hereby declare the nature of the said Invention for "AN IMPROVED
ECONOMICAL CAN OR VESSEL FOR CONTAINING AND DELIVERING LUBRICATING OR
OTHER FLUIDS," to be as follows:-
My Invention consists in constructing a can or vessel principally intended
for lubricating purposes in such a manner that the oil or other lubricating
fluid contained therein is ejected from the same in determined quantities and
with a certain force, which may be regulated at the pleasure of the manipulator.
For this purpose I fix inside the can or vessel a small cylinder or pump
barrel, which has one aperture through which it communicates with the interior
of the can, and a second aperture through which it communicates with the
spout of the can, to which it is attached. Both apertures are closed by
valves, that to the first named aperture opening inwards, similar to the suction
valve of an ordinary force pump, whilst that to the last-named aperture opens
outwards, similar to the delivery valve of a force pump, and both these valves
are pressed down on their seats by means of small springs. Beyond both
the above-named apertures is a piston capable of being worked up and
down inside the cylinder to a variable extent by a means of a piston rod
passing out to the outside of the can or vessel, where it is provided with a knob
or disc which is depressed by the. hand. A spring pressing against the under

page_text: side of this knob forces the piston rod, and with it the piston, back into a certain
position, after it has been depressed by the manipulator, and maintains it in
this position when it is not acted upon. Projecting from the outside of the can
or vessel, by the side of the piston rod, is. a graduated scale, the divisions upon
which indicate the distances to which the piston must be depressed for a certain
number of drops of oil or other fluid to be ejected from the spout of the can or
vessel. A regulating screw with a knob or disc is provided close by the side
of this scale, and can be raised or lowered along the same according to the
number of drops or quantity of oil or other fluid required to be ejected each time.
Thus as the piston rod, and with it the piston, is depressed by the pressure
of the thumb or finger of the manipulator upon the external knob, the oil or
other fluid is ejected from the spout of the vessel until the progress of the
piston is stopped by the knob of the piston rod coming in contact with
the knob of the regulating screw, when such a quantity of the oil or
other fluid will have been ejected as is marked' upon the division of the
scale at which the knob of the set screw stands. It will be readily seen
that, as the arrangement of the piston, piston rod, and the two valves is just
the same as that of an ordinary force pump, the oil or other fluid will be ejected
to a greater or smaller distance according to the force with which the
piston is depressed. On releasing the knob of the piston rod the before-
mentioned spring draws the piston back into its original position, by which
a fresh quantity of oil or other fluid is drawn into the cylinder or barrel through
the suction valve. A separate aperture closed with a stopper is provided for
filling the can or vessel when required, and a sieve of fine wire gauze or per-
forated metal is fixed beneath the same inside the can or vessel, so as to prevent
any dirt or solid particles from passing into the can or vessel together with
_the oil or other fluid. The can or vessel may be formed of any suitable
material, size, or shape, according to the nature of the fluid which it is to
contain, or the purpose for which it is employed, and by preference I place the
handle of the same in such a position relative to the knob of the piston rod,
that the manipulator can depress the latter with the thumb or finger of the
same hand with which he holds the can or vessel. Although I have stated that
this apparatus is more particularly intended for lubricating purposes, yet it may
also be employed for containing and delivering any other fluids of which it
is required to eject certain regulated quantities at a time.