Improvements in Oil or Grease Cups.
Year: 1889

page_text: COMPLETE SPECIFICATION.
Improvements in Oil or Grease Cups.
I PETER JENSEN of 77 Chancery Lane, in the County of Middlesex, Fellow of
the Institute of Patent Agents (a communication to me from abroad by William
Frederic Mattes, residing at Scranton, in the County of Lackawanna and State of
Pennsylvania, one of the United States of America, Gentleman.) do hereby
manner the same is to bo
declare the nature of this invention and in what
performed, to be particularly described and ascertained in and by the following
štatement:
This invention relates to lubricators which are especially designed for lubricating
the moving parts of machinery, and which are supplied with heavy lubricants such
as grease or consolidated oil, which are positively expelled from the oil chamber or
cup by the power of a spring acting on a plunger.
-
The improvements consist in the peculiar construction and combination of the
parts, and, chiefly, in the means for controlling the position of the telescoping plunger,
which hereinafter will be more fully described and claimed, and shown in, the
accompanying drawings, in which
Figure 1, is a front view of a lubricator embodying our invention.
Figure 2, is a vertical section of the lubricator on the line, Y, Y, of Figure 1
and
Figure 3, is a cross-section on the line, X, X, of Figure 2, looking down.
C, is the body of the cup or receptacle for grease.
B, is a base having a shank, H, by which it is secured to the part to be
Inbricated.

page_text: H, is a hole through the shank, and, R, is a screw-plug, by. means of which the
hole, H, may be more or less closed.
P, is a piston working in the interior of the cup, C, and having a rod or tube, G,
fastened to it.
C, is a cylindrical projection of the cup, C.
F, and, F2, are interior flanges of the cylindrical projection, C2, and are notched
at, N, and, N
T, is a hollow handle or plunger which passes through the flanges, F, and, F², and
has the upper end closed by the cap, T2.
S, is a spring in compression when the cup is filled, and therefore tends to force
the hollow handle, T, upward out of the tubular projection, (2, but is prevented from
so doing by the cap, T2, coming in contact with the stop, G, the latter being fastened
to the rod, G.
D2, are stubs fastened to the hollow handle, T.
The screw-plug, R, has a hole, R2, through it, or a notch may be cut in the edge
of either the plug or the hole that it screws into. The plug is also slotted for
a screw-driver.
When the handle, T, is pushed down until one or more of the stubs, D2, have
passed through the notch, N, and is then turned around until the stub has caught
underneath the flange, F, the power of the spring, S, will be exerted to press the
piston, P, downward; but as. this action is resisted by the grease in the cup, C, it
can take place but slowly-to wit, as rapidly as the grease is expelled through the
opening, Hand in the meantime the rod, G, projecting above the cap, T2, serves
to indicate how much grease has yet to be expelled before the operation will be
arrested by the cap, G2, coming in contact with the cap, T2. If the handle, T, has
been pressed down until the uppermost of the stubs, D2, has been caught underneath
the flange, F, then when the rod, G; descends until the cap, G2, strikes it will indicate
that the cup has been entirely emptied of grease. The two flanges, F, and, F2, act
in conjunction to guide the handle, T. The notches, N, and, N2, are best in the
vertical plane, and it is immaterial to the working whether when the handle, T, is
pressed down the stubs, D2, catch beneath, F, or, F2. The rod, G, which may be
either solid or hollow, being guided near its upper end by the cap, T2, serves in turn
to guide the piston, P, and is useful for pulling the piston back when the cup is to be
refilled.
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:-
1. A lubricating device having in combination a cup with a spring-actuated piston
working therein, said cup having a feed-hole in its bottom and a cylindrical pro-
jection upon the top of the same, a hollow handle arranged to slide within the said
projection, and a spring enclosed within the handle.
2. A lubricator consisting of a cup having a feed hole, an apertured screw-plug
in its bottem, and a cylindrical projection, a hollow handle having cap, T2, at.
its top, a piston working within the cup, a piston-rod fastened to the piston and
passing through the handle, a stop fastened to the rod, and a spring surrounding said
rod.
3. A lubricating device having a cup with a feed-hole in its bottom, and a cylin-
drical projection with an inner flange, piston, P, rod, G, stop, G2, handle T, with
cap, T2, and spring, S.
4: The combination, with the cup having a feed hole in its bottom, and the cylin-
drical projection having an inner flange which is notched, of the piston, the hollow
bandle having one or more stubs, and the spring interposed between the piston and
the hollow handle, substantially as described.
5. The combination, with the cup provided with a feed-hole in its bottom, and
with a cylindrical projection having inner flanges which form guides, the flanges

page_text: being notched, and the piston, of the hollow handle having a series of stubs and
having a cap, and the spring interposed between the said cap and the piston, sub-
stantially as and for the purpose described.
6. The combination, with the cup having a feed-hole in the bottom, of a screw-
regulating plug which has an aperture passing through it, the aperture being eccentric
to said feed-hole, the parts being arranged substantially as set forth.