Year: 1891

page_text: Date of Application, 14th Mar., 1891
Complete Specification Left, 14th Jan., 1992-Accepted, 12th Mar., 1892
Figure 15 view
In these figures-
A is a small rotary motor of suitable capacity mounted on the stand A'. a is its
shaft at the end of which the small toothed wheel is mounted; a' is the inlet
pipe for the fluid to be measured. This pipe is provided with a cock; a' is a pipe
establishing communication with the pressure gauge B. a is the pipe leading the
fluid from the meter.
B is the metal pressure gauge of ordinary construction. is its pointer. This
pointer has at its end a small triangular block of bronze or other material.
Behind the pointer is a bar . C is the cylinder of the integrating machine. This
cylinder is enveloped with a helicoidal cam as is seen in the drawings. It is mounted
on a shaft e turning between two adjustable screws ele placed in prolongations c³ ³
of the sides of the oscillating frame. This frame oscillates on the screw
pivots c. On the shaft of the cylinder C two toothed wheels are mounted.
is a regulating screw for limiting the movement of the oscillating frame is
D is the dial
a spiral spring bringing the frame back to its original position.
register driven by the toothed wheel d. On the shaft d' of this wheel an endless
worm is mounted which controls the toothed wheel driving the recording
train.
The working of the apparatus is as follows.
The compressed air or other fluid to be measured comes by the pipe a' into the
motor A and causes it to turn the shaft a and the toothed wheel a. This wheel
drives the wheel a' and turns the cam cylinder (. When the air, by the opening
of the cock placed in the pipe a', enters into the motor, it also enters the pressure
When
gauge B, in which it displaces the pointer & proportionally to its pressure.
the pointer bis at " it cannot be placed in contact with the cam of the cylinder.
As soon as the pointer is displaced and the cylinder Crotates, its cam meets the
block 6 of the needle & once in each revolution and for a periol proportional to
the pressure; the block then comes against the fixed bar 12. At this time
the cylinder C is displaced parallel to its axis and causes the movable frame ³ to
1

page_text: oscillate. The wheel c' then gears with the wheel d which turns the endless worm d
and moves the needles of the register D.
Directly the cam of the cylinder C is no longer in contact with the pointer b, the
spring brings back the frame and the cylinder to its original position. This
position is regulated by means of the screw
The number of turns of the cylinder (being proportional to the volume of fluid
to be measured and the cam allowing of registration proportional to the pressure;
the product of the volume into the pressure is obtained.
Dated this 14th day of March 1891.
CARPMAEL & CO.,
Agents for the Applicant.
COMPLETE SPECIFICATION.
An Air, Vapour, or other Fluid Meter.
I, Jules CauDERAY, of 27 Avenue Laumière, Paris, Electrician, 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 :-
This invention has for its object the construction of an air, vapour or other fluid
meter an apparatus it may be for measuring the volume of Huid distributed at
variable pressures.
There are already several apparatus of this class such as gas meters, compressed
air meters and others but none of these apparatus take account of the pressure of
the fluid at the moment of its utilisation.
The apparatus which is the object of the present invention measures exactly the
quantity of the fluid distributed during a given time.
My apparatus consists :-
1. Of an air, gas or vapour motor or meter of any kind, rotary or with cylinder.
2. Of a pressure gauge preferably of metal.
3. Of a suitable integrating machine.
4. Of a dial register.
The drawings left with the Provisional Specification show my apparatus.
Figure 1 is a front view of the meter.
Figure 2 is a plan.
Figure 3 is a side view.
In these figures :-
A is a small rotary motor of suitable capacity mounted on the stand A'. a is its
shaft at the end of which the small toothed wheel a' is mounted; a' is the inlet
pipe for the fluid to be measured. This pipe is provided with a cock; a² is a pipe
establishing communication with the pressure gauge B. is the pipe leading the
fluid from the meter.
B is the metal pressure gauge of ordinary construction. is its pointer. This
pointer has at its end a small triangular block of bronze or other material.
Behind the pointer is a bar . C is the cylinder of the integrating machine. This
cylinder is enveloped with a helicoidal cam as is seen in the drawings. It is
mounted on a shaft c turning between two adjustable screws c'e' placed in
prolongations of the sides of the oscillating frame c. This frame oscillates on
the screw pivots c. On the shaft c of the cylinder C two toothed wheels care
mounted. is a regulating screw for limiting the movement of the oscillating
frame is a spiral spring bringing the frame back to its original position. D is
the dial register driven by the toothed wheel d. On the shaft d' of this wheel an
endless worm is mounted which controls the toothed wheel driving the
recording train.
The working of the apparatus is as follows:-
The compressed air or other fluid to be measured comes by the pipe a' into the

page_text: When
motor A and causes it to turn the shaft a and the toothed wheel a'. This wheel
drives the wheel and turns the cam cylinder C. When the air by the opening of
the cock placed in the pipe a', enters into the motor, it also enters the pressure
gauge B, in which it displaces the pointer b proportionally to its pressure.
the pointer is at o' it cannot be placel in contact with the cam of the cylinder.
As soon as the pointer is displaced and the cylinder Crotates, its cam meets the
block of the needle once in each revolution and for a period proportional to
the pressure; the block &' then comes against the fixed bar b³. At this time the
cylinder is displaced parallel to its axis and causes the movable frame
oscillate. The wheel then gears with the wheel d which turns the endless worm d'
and moves the needles of the register D.
Directly the cam of the cylinder C is no longer in contact with the pointer b, the
spring brings back the frame c and the cylinder to its original position. This
position is regulated by means of the screw e
The number of turns of the cylinder C being proportional to the volume of fluid
to be measured and the cam allowing of registration proportional to the pressure ;
the product of the volume into the pressure is obtained.
The arrangement of the mechanism in adapting it to the requirements of the user
admits of much variation without departing from my invention.
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. The combination substantially as described of a motor or meter for air,
gas vapour or other fluid with a pressure gauge, integrating apparatus and a
counter.
2. In apparatus such as herein described the cam cylinder operating as set forth
in conjunction with the pointer of the pressure gauge.
3. In apparatus such as herein described the cam cylinder and oscillating frame
intermittently driving the wheels of the counter.
4. Apparatus substantially as described and illustrated by the annexed drawings.
Dated this 14th day of January 1892.
CARPMAEL & Co.,
Agents for the Applicant.