AN IMPROVED METER AND MOTIVE POWER APPARATUS
Year: 1872

page_text: PROVISIONAL SPECIFICATION left by William Edward Gedge at the
Office of the Commissioners of Patents, with his Petition, on
the 30th March 1872.-A communication from abroad by Jean
Baptiste Piau, of No. 37, Boulevard Bonne-Nouvelle, Paris,
France.
I, WILLIAM EDWARD GEDGE, of No. 11, Wellington Street, Strand,
in the County of Middlesex, Patent Agent, do hereby declare the
nature of the said Invention for "AN IMPROVED METER AND MOTIVE POWER
APPARATUS," a communication to me from abroad by Jean Baptiste
Piau, of No. 37, Boulevard Bonne-Nouvelle, Paris, France, to be as
follows:-
This Invention relates to an apparatus combining the functions of
a water meter and of a driving engine of small power; its construction
will be most readily understood by reference to the accompanying Sheet
of Drawing, upon which Figure 1 represents an elevation of an apparatus
embodying this Invention; Figure 2 a horizontal section of same
at A, B, Fig. 1, and Figure 3 a vertical section at A, B, and C. D.
The apparatus is composed of four cylinders E, E, E, E; these four
cylinders have at the lower part four holes F, F, F, F, permitting

page_text: the entrance of the water by the tubes G, G, G, G, communicating
with the distributing seat H. These cylinders are traversed by four
pistons J, J, J, J, coupled two and two by the rods K, K, bent at the
ends L, L, so as to leave a slot to form slide. The cylinders E, E, E, E,
are set in form of a cross, and unite at their central point.
,
.
pistons J, J, J, coupled two and two by the rous A, A, bent at the
ends L, L, so as to leave a slot to form slide. The cylinders E, E, E, E,
are set in form of a cross, and unite at their central point.
Fig. 4 represents two coupled rods K, K, uniting the pistons J, J.
Fig. 5 represents the distribution seat with the four orifices to which
are fixed the tubes G, G, G, G, with a fifth orifice M, which serves for
the escape.
Fig. 6 represents the distributing slide valve N, with circular slot O
and a stop P (Fig. 6*).
Fig. 7 represents the crank Q pulled by the two rods K. This crank
rests on the two bearings R (Fig. 3) and has at its lower part a piece S
which takes into a fork T carrying with it the stop P. In its upper part
there is a rod V which passest hrough the stuffing box gland, and gives
the outer movement, represented Figs. 1 and 3, by the bevel pinion X.
Working of the Apparatus.-The water coming from any conduit,
entering at Y (Fig. 1) penetrates to the distributing seat, and from
thence by the orifices F, F, F, F, into the tubes G, G, G, G, (Fig. 3) to
come behind the pistons J, J, J, J. The distributing slide valve N
(Fig. 6) receiving the water from the tubes G, G, G, G, closes alter-
nately the openings F, F, F, F, and thereby gives a to-and-fro movement
to the pistons J, J, J, J, which by means of the rods K and fork T
cause the crank Q to rotate, at the same time actuating the distributing
slide valve. The motor thus set at work permits the distributed and
now useless water to escape at 2, (Fig. 1.)
By changing the packing this apparatus may be adapted for steam or
any other compressible body, and may be used as a lifting pump or as a
fixed or portable forcing pump.