AN ENGINE WORKED BY PRESSURE OF LIQUID, APPLICABLE AS A LIQUID METER to be as follows:-
Year: 1884

page_text: I, WILLIAM ANTON GOTTLIEB SCHÖNHEYDER of 81 St Stephen's Avenue,
Shepherds Bush in the county of Middlesex, Engineer, do hereby declare the
nature of my invention for "AN ENGINE WORKED BY PRESSURE OF LIQUID,
APPLICABLE AS A LIQUID METER to be as follows:-
:-
"
My invention relates to a construction and arrangement of engine worked by
pressure of water or other liquid applicable as a meter for measuring the quantity
of water or liquid passing through it. I arrange three cylinders, as in the three-
cylinder Brotherhood engine, around a central crank shaft, mounting these cylinders
within a casing, and fitting them with packed pistons or plungers, which work
directly on the one crank, without the intervention of connecting rods, so that as
the crank revolves the cylinders have to oscillate. By this oscillating movement,
ports for supply and discharge of the liquid are governed, these ports being formed
in each case through a stationary spherical base on which the cylinder oscillates, and
through the spherically hollowed bottom of the cylinder which fits this base. In
order to equalise wear of the two spherical rubbing surfaces, I cause the cylinder
not only to oscillate in obedience to the movement of the crank, but also to turn
partly round its axis. As the pressure acting within the cylinder tends to bear
these rubbing surfaces against each other, I prefer to partly balance this pressure
by causing it to act only on a spherical annulus of the bottom of the cylinder,
leaving the middle of the bottom open or balancing it by a corresponding spherical
seginent on the opposite side of the axis of oscillation.
ABEL & IMRAY,
Agents for the Applicant,
28, Southampton Buildings,
London, W.C.

page_text: COMPLETE SPECIFICATION.
An Engine Worked by Pressure of Liquid, Applicable as a
Liquid Meter.
"
I, WILLIAM ANTON GOTTLIEB SCHÖNHEYDER, of 81 St Stephen's Avenue,
Shepherds Bush in the County of Middlesex, Engineer, do hereby declare the
nature of my invention for AN ENGINE WORKED BY PRESSURE OF LIQUID
APPLICABLE AS A LIQUID METER and in what manner the same is to be
performed to be particularly described and ascertained in and by the following
statement:-
"
My invention relates to a construction and arrangement of engine worked by
pressure of water or other liquid applicable as a meter for measuring the quantity
of water or liquid passing through it. I arrange three cylinders, as in the three-
cylinder Brotherhood engine, around a central crank shaft, mounting these cylinders
within a casing, and fitting them with packed pistons or plungers, which work
directly on the one crank, without the intervention of connecting rods, so that as
the crank revolves, the cylinders have to oscillate. By this oscillating movement,
ports for supply and discharge of the liquid are governed, these ports being formed
in each case through a stationary spherical base on which the cylinder oscillates,
and through the spherically hollowed bottom of the cylinder which fits this base.
In order to equalise wear of the two spherical rubbing surfaces, I cause the cylinder
not only to oscillate in obedience to the movement of the crank, but also to turn
partly round its axis. As the pressure acting within the cylinder tends to bear
these rubbing surfaces against each other, I prefer to partly balance this pressure
by causing it to act only on a spherical annulus of the bottom of the cylinder,
leaving the middle of the bottom open or balancing it by a corresponding spherical
segment on the opposite side of the axis of oscillation.
Fig. 1 of the accompanying drawings is a plan partly in section and Fig. 2 is a
longitudinal section partly in elevation of a liquid meter according to my invention;
Fig. 3 is a front view of the base of one of the cylinders shewing the ports through
it, Fig. 4 is a section of one of the cylinders shewing some of the ratchet teeth for
effecting its step by step rotation. The three cylinders such as A have pistons B
all connected directly to one crank C on a spindle D. Each cylinder is free to
oscillate and rotate on the spherical base E, the oscillation resulting from the
connection of its piston to the crank, and the rotation being effected step by step
by means of springs F which act as pawls on ratchet teeth G formed on each of
the cylinders. The liquid enters the upper part H of the casing by an inlet I
which is preferably furnished with a check valve i, and the liquid passes from the
lower part K of the casing by an outlet O. In the base E are formed ports as and d
for supply and discharge respectively, the port s opening directly from the space H,
'and the port d communicating by the passage oo with the space K. In order to
allow of escape of liquid that might leak from s between the spherical surfaces,
I provide in the base E a recess r communicating with the outlet passage o. In
order to keep the cylinder A pressed to the base E, especially before the liquid
pressure acts upon it, I provide a spring L strained between a collar on the stem of

page_text: the cylinder and a shoulder within the base E. The counter at M is worked by
worm or other suitable gear from a small crank c driven by the main crank Č.
When the apparatus is employed as an engine, the counter may be dispensed with,
the power being communicated by the shaft D which in that case is prolongued
through a stuffing box to the exterior.
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 is
1. The construction of engine or meter substantially as described with reference
to the accompanying drawings.
2. In an engine or meter of the kind referred to in the preceding claim, in
combination with the spherical base E and the spherically hollowed cylinder
bottom, the ratchet teeth G and springs F for causing rotation as well as oscillation
of the cylinder, substantially as and for the purpose set forth.