Improvements in Meters for Liquids or Gases under Pressure.
Year: 1891

page_text: Date of Application, 21st Dec., 1891
Complete Specification Left, 16th Sept., 1892-Accepted, 5th Nov., 1892
PROVISIONAL SPECIFICATION.
Improvements in Meters for Liquids or Gases under Pressure.
1, BENJAMIN JOSEPH BARNARD MILLS, of 23 Southampton Buildings in the
County of Middlesex, Patent Agent, do hereby declare the nature of this invention,
a communication to me by Tony Blein, of 74 Cours de la Liberté, Architect and
Edouard Béraud of 5 Quai de l'Hopital Plumber both of Lyons in the Republic
of France, to be as follows, reference being had to the accompanying drawings and
to the figures and letters marked thereon:
The present invention relates to meters for measuring liquids or gases, by the
alternating movement of the piston, pushed by the pressure of the fluid itself,
which latter is admitted alternately to one or the other side of the piston.
The improvements consist in new means of obtaining the distribution of the fluid
on the two sides of the piston, and of transmitting to an exterior counter the
movements of the said piston.
The accompanying drawings represent these improvements applied to a vertical
liquid meter.
Figures 1 and 2 represent two vertical sections of the meter drawn at right angles
to each other on the vertical axis of the same.
The piston A moves freely within the cylinder B and slides upon a rod C, which
passes through its centre. This rod passes through the upper end E through a
stuffing box into the inlet chamber F, where it carries a sleeve G which gives
movement to the distribution slide valve H.
The slide valve H slides upon a surface having three ways, the two extreme of
which a. a' communicate with the opposite ends of the cylinder, whilst the central
way e communicates with the outlet orifice 1 for the liquid.
The liquid enters the chamber F by the tube J, the play of the distribution slide
valve distributes the liquid alternately to the two sides of the piston and causes it
to escape by the outlet tube I, after having filled one or the other spaces formed by
the piston.
The distribution rod C carries near the ends of the cylinder, two stops D. D¹
which are alternately pressed by the springs K. K' interposed between these stops
and the piston. At each end of the cylinder are fixed two sockets L. L, L'L' each
of which contains a stud or button M acted upon by a spring, the rod of this stud
or button is traversed by the tail of a trigger N or N', oscillating on the axis O.
and whose upper angle can engage under the stop D₁ as represented in the upper
part of Figure 2.
In this figure, the slide valve, being at the lower end of its stroke, allows the
liquid to enter below the piston, which latter in rising forces out the liquid which
is above it. In approaching the stop D', the piston will compress first the spring K
upon this stop, it will then push the studs or buttons M', which acting upon the
triggers N', will disengage the stop D'.
This latter will again rise under the pressure of the spring K', drawing with it
the rod C, and the slide valve, the liquid arriving thus above the piston, the latter
will again fall without being able to carry the rod C with it, as the lower stop D,
being raised at the same time as the rod C is resting upon the triggers N, in the
position before occupied by the upper stop D'.
The piston in its descent will therefore find the parts of the lower triggers ready
to work, and the movement will continue as long as the liquid passes through the
meter.
To enable the quantity of liquid entering at each stroke of the piston A to be
accurately adjusted the heads of the studs or buttons M M are screwed on their

page_text: shafts, and their projection is regulated during the construction of the apparatus, in
such manner as to effect the unlatching at the precise moment when the required
quantity of liquid has been introduced.
A counter of any known or suitable construction, not shown on the drawing,
placed on the outside of the meter at P registers each to and fro motion of the
piston, and enables to be read at any moment the quantity in litres or cubic meters
passed through the apparatus since the commencement of its working.
With this object a small shaft R passes through the side of the cylinder through
a stuffing box. This shaft carries at the inner end a ratchet wheel S operated by a
pawl T shown at Figure 3 fixed to a piston U which is raised at each upward stroke
of the piston A, and is lowered by a spring when this piston again descends, the
ratchet wheel S thus receives at every second stroke of the piston a forward motion
of one tooth which is transmitted to the counter by the wheel V fixed at the outer
end of the shaft R.
The dimensions of the apparatus and its mode of construction may be varied
according to its applications, and it can be arranged either vertically or
horizontally.
Dated Decembo 01 1001
COMPLETE SPECIFICATION.
Improvements in Meters for Liquids or Gases under Pressure.
I, BENJAMIN JOSEPH BARNARD MILLS, of 23 Southampton Buildings in the
County of Middlesex, Patent Agent, do hereby declare the nature of this invention,
a communication to me from Tony Blein, of 74 Cours de la Liberté, Architect
and Edouard Béraud of 5 Quai de l'Hôpital, Plumber, both of Lyons in the
Republic of France, and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement, reference
being made to the drawings accompanying my Provisional Specification and to the
figures and letters marked thereon:-
The present invention relates to meters for measuring liquids or gases, by the
alternating movement of the piston, pushed by the pressure of the fluid itself,
which latter is admitted alternately to one or the other side of the piston.
The improvements consist in new means of obtaining the distribution of the
fluid on the two faces of the piston, and of transmitting to an exterior counter the
movements of the said piston.
The drawings accompanying my Provisional Specification represent these
improvements applied to a vertical liquid meter.
Figures 1 and 2 represent two vertical sections of the meter drawn at right
angles to each other on the vertical axis of the same.
The piston A moves freely within the cylinder B, and slides upon a rod C, which
passes through its centre. This rod passes through the upper end E through a
stuffing box into the inlet chamber F, where it carries a sleeve G which gives
movement to the distribution slide valve H.
The slide valve H slides upon a surface having three ways, the two extreme of
which a. a communicate with opposite ends of the cylinder, whilst the central way e
communicates with the outlet orifice I for the liquid.
The liquid enters the chamber F by the tube J, the play of the distribution
slide valve distributes the liquid alternately to the two sides of the piston and
causes it to escape by the outlet tube I, after having filled one or the other spaces
formed by the piston.
The distribution rod C carries near the ends of the cylinder, two stops D. D',
which are alternately pressed by the springs K. K¹ interposed between these stops

page_text: and the piston. At each end of the cylinder are fixed two sockets L L, L' L' each
of which contains a stud or button M or M' acted upon by a spring; the rod of
this stud or button is traversed by the tail of a trigger N or N', oscillating on the
axis O, and whose upper angle can engage under the stop D' as represented in the
upper part of Figure 2. In this figure the slide valve being at the lower end of
its stroke, allows the liquid to enter below the piston, which latter in rising forces
out the liquid which is above it. In approaching the stop D', the piston will
compress first the spring K upon this stop, it will then push the studs or buttons M',
which acting upon the triggers N' will disengage the stop D'. This latter will
again rise under the pressure of the spring K, drawing with it the rod C, and the
slide valve, the liquid arriving thus above the piston, the latter will again fall
without being able to carry the rod C with it, as the lower stop D being raised at
the same time as the rod C is resting upon the triggers N, in the position before
occupied by the upper stop D'.
The piston in its descent will therefore find the parts of the lower triggers ready
to work, and the movement will continue as long as the liquid passes through the
meter.
To enable the quantity of liquid entering at each stroke of the piston A. to be
accurately adjusted the heads of the studs or buttons M, M³, are screwed on their
shafts, and their projection is regulated during the construction of the apparatus,
in such manner as to effect the unlatching at the precise moment when the required
quantity of liquid has been introduced.
A counter of any known or suitable construction, not shown on the drawing,
placed on the outside of the meter at P registers each to and fro motion of the
piston, and enables to be read at any moment the quantity in litres or cubic metres
passed through the apparatus since the commencement of its working.
With this object a small shaft R passes through the side of the cylinder through
a stuffing box. This shaft carries at the inner end a ratchet wheel S operated by a
pawl T shown at Figure 3 fixed to a piston U which is raised at each upward
stroke of the piston A and is lowered by a spring when this piston again descends;
the ratchet wheel S thus receives at every second stroke of the piston a forward
motion of one tooth which is transmitted to the counter by the wheel V fixed at the
outer end of the shaft R.
The dimensions of the apparatus and its mode of construction may be varied
according to its applications, and it can be arranged either vertically or
horizontally.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what I
claim is,
1. In a meter for measuring liquids or gases under pressure, a piston A, sliding
upon a central rod giving motion to the distribution slide valve, by the combination
of springs K K' compressed alternately by the piston upon the stops D D' of the
rod, with the levers N N' latching the said stops, and the studs or buttons M M¹
unlatching the levers N N at the precise moment when the piston has completed
its course substantially as herein shown and described.
2. In a meter for measuring liquids or gases under pressure, a shaft R passing
through the side of the cylinder and giving motion at the exterior to a counter
registering the to and fro motions of the piston, the said shaft R being operated
directly by the piston by means of an internal ratchet wheel substantially as herein
shown and described.
Dated this 16th day of Sentombor 1209
B. J. B. MILLS,
By Harris & Mills,
23, Southampton Buildings, London, W.C., Agents.