Page 14

14          THE INTERNATIONAL EXHIBITION, I876.
brated-solid, substantial and neat, with no useless ornamentation, every
part
fitted to gauges and thoroughly interchangeable, the whole being an excellent
specimen of American manufacture.
In connection with the motive-power exhibits we may very appropriately
mention Lonergan's Patent Oil-Cups and Automatic Lubricators. The principles
upon which they work have been beautifully carried out, resulting in most
excellent forms of apparatus for the requirements. The oil-cups are of several
varieties to suit different purposes. Our first engraving, on page 15, shows
the
usual construction for stationary motion, being partly in section and partly
an
exterior view.
It consists of a metallic cup or casing, A, A, pierced by diamond-shaped
openings in the cylindrical part, with a tube, B, to be connected with, and
passing
to, the part to be lubricated. Inside of this casing is a glass cylinder,
C, with
cork rings, D, D, at top and bottom. The cap, E, screws down tightly on to
the
cork, making an oil-tight joint. A plug, F, with ground joint, and held in
place
by a spiral spring, G, effectually closes the tube B and prevents the passage
of
oil unless desired otherwise. This plug connects with the handle, H, H, on
top,
the connection being movable through the cap, E, of the casing and hollow
in
the upper portion as shown at I, I, there being openings, K, at the lower
end
of this hollow space, and a cap, L, screwed on at the top, the latter having
an
air-hole, 0, pierced through it. A set screw, M, passes through the rim of
the
handle, H, with a rest, N, for the same in the cap, E. When it is desired
to fill
the cup, the cap, L. is unscrewed and the oil poured in, the handle, H, being
turned around until the set-screw, M, is off of its rest, N, the plug, F,
then tightly
closing the entrance to the tube, B. After filling and replacing the cap,
L, then
by turning the handle, H, and placing the set-screw, M, on its rest, we can,
by
adjusting this screw, regulate exactly the required amount of opening necessary
at F for the proper oiling of the machine. When the machine is at rest and
no oiling needed, it is only requisite to raise the handle, H, and turn it
so as
to move the set-screw from its rest, and the spring, G, at once closes the
plug, F,
into the opening of B and stops the consumption of oil.
Figure 2 shows a modification adapted to movable parts under rotary motion.
The spring, G, is dispensed with and the loose plug, F, has a little stop,
P, in it, the
set-screw, M, being differently arranged as shown. At each rotation the loose
plug,