An Apparatus for the Measurement of Liquids.
Year: 1893

page_text: Date of Application, 19th May, 1893
Complete Specification Left, 17th Mar., 1894-Accepted, 21st Apr., 1894
PROVISIONAL SPECIFICATION.
An Apparatus for the Measurement of Liquids.
OSCAR ELPHICK, 4 Putney Hill London S. W., Engineer do hereby declare the
nature of this invention to be as follows:-
The apparatus consists of a vertical cylinder with a solid top & open end.
A piston with double cup leathers moves freely inside. On the top end of the
vertical cylinder two ports are arranged to lead to top & bottom of the piston, a
third port is constructed inside of vertical cylinder at the highest point & leads
into the outlet. These ports are covered by separate slide valves. In the centre
of the solid top a small cylinder is fixed leading into the large cylinder; this small.
cylinder acts as a stuffing box but cup leathers are used instead of packing, these
cup leathers also prevent the supply mixing with the discharge. Attached to the
top part of the main cylinder & covering the ports & slides is a second
cylinder or cover & in it is formed the inlet. Across the top part of the packing
cylinder a mandril is fixed in bearings, from this mandril an arm projects which
carries a weight. At the bottom end of vertical cylinder a flange with a
horizontal cylinder is fixed. Inside of this latter cylinder a piston with double
cup leathers travels backwards & forwards. At the back of the horizontal
piston a relief valve is fixed which leads by a port into the main outlet.
The action is as follows:-
The water or other liquid enters through the top chamber & runs through the
down port & forces the vertical piston down, at the same time it forces the
horizontal piston back from its seat & allows the liquid to escape-which is
forced down by the vertical piston. As the vertical piston is descending it forces
by means of a cranked arm the weight over the dead point, by this action the down
port closed & the up and outlet ports are opened.
The vertical piston is then forced up & the horizontal piston forced against the
seat, the liquid on top of vertical piston is thus forced through the outlet port into
the main outlet, the up port is then closed & the action repeated.
The index or register which may be of many forms, may be connected either to
the oscillating weight or to the spindle of the main piston.
Dated this 18th day of May 1893.
OSCAR ELPHICK,
COMPLETE SPECIFICATION.
An Apparatus for the Measurement of Liquids.
I OSCAR ELPHICK, 4 Putney Hill London S. W., do hereby declare the nature
of this invention and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement :-
The apparatus consists of a vertical cylinder with a solid top and open end.
A piston with double cup leathers moves freely inside.
On the top end of the vertical cylinder two ports are arranged to lead to top
& bottom of the piston, a third port is constructed inside of vertical cylinder at
the highest point and leads into the outlet.
These ports are covered by separate slide valves. In the centre of the solid top
a small cylinder is fixed leading into the large cylinder. This small cylinder acts

page_text: ;
as a stuffing box, but cup leathers are used instead of packing. These cup
leathers also prevent the supply mixing with the discharge.
Attached to the top part of the inain cylinder and covering the ports and slides is
a second cylinder or cover, and in it is formed the inlet. Across the top part of the
packing cylinder a mandril is fixed in bearings; from this mandrilan arm projects
which carries a weight.
At the bottom end of the vertical cylinder a flange with a horizontal cylinder is
fixed, inside of this latter cylinder a piston with double cup leathers travels
backwards and forwards: at the back of the horizontal piston a relief valve is fixed
which leads by a port into the main outlet.
The action is as follows:-
r"
The water or other liquid enters through the top chamber, and runs through the
down port and forces the vertical piston down, at the same time it forces the
horizontal piston back from its seat and allows the liquid to escape which is forced
down by the vertical piston..
As the vertical piston is descending it forces by means of a cranked arm the
weight over the dead point, by this action, the down port is closed and the up and
outlet ports are opened.
'
The vertical piston is then forced up and the horizontal piston forced against the
seat the liquid on top of vertical piston is thus forced through the outlet port
into the main outlet: the up port is then closed and the action is repeated..
To enable my invention to be more clearly understood I will describe the same
more particularly by means of the accompanying drawings in which :
}
Fig. 1 is a part sectional elevation of my invention taken upon line A B Fig. 3.
Fig. 2 is a part section upon line A B Fig. 3 but shewing the valves in a position
reverse to that shewn in Fig. 1.
:
Fig. 3 is a plan with hood or cover removed.
Fig. 4 shews one method of coupling up the indicating mechanism.
Fig. 5 shews a modified valve arrangement.
In the drawings a, is the vertical cylinder c, the piston fitted with cup leathers
or equivalent water tight packing d, upon the upper end of the cylinder a, are two
ports e el one of which e, opens communication with the upper side of the piston c, the
other e', communicating with the underside of piston. A third port: f, constructed
within the cylinder near the top leads to the outlet 9. The ports e, e, f, are covered
by metallic valves h, h, h In the centre of the top cover of measuring
cylinder a, is fixed a small cylinder j, which acts as a stuffing box or guide for the
piston rod c', of piston c; the upper end of which is packed by cup leathers d,
which prevent the supply mixing with the discharge; attached to the top end of
the cylinder a, and forming a cover for the ports and valve motion is a hood, in
which is formed the inlet m, a mandril or spindle n, see Fig. 3 is mounted in
bearings p, secured to the top of the cylinder a, by screws or the like. Upon this
spindle is keyed an arm 7, which carries a weight r. The upper end of piston c,
carries two rods u u', which are fastened to a yoke, v, carrying a cranked arm y
which engages with lever when descending, and when ascending, these levers
together with the small tappit lever we are all keyed to the spindlen, the valves h,
,, are actuated by the rod el carrying two tappits, which are driven to and
fro by the lever will.
Bolted to the flanges, forming the base of cylinder a, is a horizontal cylinder t,
within which is a piston c", fitted with cup leathers d, and a valve w; which when
in the position shewn in Fig. 2 closes a relief: port or bye pass k. communicating
with the outlet g, by a port el
The operation of my invention is as follows:-
.::
.j.
Fig. 1 which is a part sectional elevation shews the piston and its attachments in
the upper position whereby the port e, is.opened so as to permit the liquid to press
upon the upper side of piston c, forcing it down and closing the valve 2. The liquid
beneath the piston passes through the opening: 21, forcing the piston.c", into the
position shewn and opening communication through port e" to the exhaust or outlet g.

page_text: The liquid collected in the opposite side of horizontal cylinder t, makes its escape.
under the relief valve w, which is forced off its seat and through the bye pass k,
to outlet port g.
As the piston descends the cranked army engages with the
lever w, tilting the weight r. and thereby causing it and the valves h, h, h" to
occupy the position shewn in Fig. 2. The port e, is now closed while the ports el
and f, are open, the liquid now passes through the port e', to cylinder t, forcing the
piston c, into the position shewn and closing relief valve to, and exit port el,.
passing through valve 2, it lifts piston c, into position shewn in Fig. 1, thus
completing the cycle of operations. A variation of my invention is shewn in
Fig. 5 wherein the main piston c, actuates through the mechanism already described
a pair of hollow slide valves h, h', which operate admission ports e e¹ and exhaust
ports g g both of which are formed upon the upper end of cylinder; by this
means I dispense with the horizontal cylinder previously described. Any suitable
form of registering mechanism may be coupled to the spindle n. In Fig. 4 have
shewn an escapement wheel 3, driven by a pawl 4, keyed thereto.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is-
1. In apparatus for measuring liquids the particular combination and arrange-
ment of parts herein described for effecting the purpose set forth.
2. In apparatus for measuring liquids the combination of the main cylinder a,
having admission ports e, e¹ formed in its closed end operated by slide valves h h
which together with the valve h", receive their motion from the piston c, rods uu
mandril 1, and lever 1, actuating tappits al and rod vl, the horizontal cylinder t,.
having opening 2¹ and valve 2 piston ci arranged for closing exhaust port ell, and
carrying valve w, opening relief to exhaust g, the cover l, containing inlet valve m,
the whole co-operating for the purpose of measuring liquids in the way and manuer
described.
3. In apparatus for measuring liquids the combination with the main piston c,
of a cylinder j, acting as a stuffing box or guide in which a leather packed piston
rod c moves, the rods u u¹ fitted thereto and carrying the yoke r, and cranked
lever
y, for the purpose of actuating the valve motions described herein by means.
of the levers y counterbalance r, and levers w¹, ", substantially as described.
Dated March 17th 1894
FRANCIS M. ROGERS,
Agent.