CERTAIN IMPROVEMENTS IN FLUID METERS
Year: 1873

page_text: LETTERS PATENT to Henri Adrien Bonneville, of the British and'
Foreign Patent Offices, 18, Rue de la Chaussée d'Antin, Paris, France,
and 6, Piccadilly, in the County of Middlesex, Patent Agent, for
the Invention of "CERTAIN IMPROVEMENTS IN FLUID METERS."— A.
communication from John Orlando Johnson, residing in the City,
County, and State, of New York, United States of America,
Gentleman.
COMPLETE SPECIFICATION filed by the said Henri Adrien Bonneville
at the Office of the Commissioners of Patents, with his Petition and
Declaration, on the 7th July 1873, pursuant to the 9th Section
of the Patent Law Amendment Act, 1852.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, HENRI
ADRIEN BONNEVILLE, of the British and Foreign Patent Offices, 18, Rue.
de la Chaussée d'Antin, Paris, France, and 6, Piccadilly, in the County:
of Middlesex, Patent Agent, send greeting.
. }

page_text: WHEREAS I am in possession of an Invention for "CERTAIN IM-
PROVEMENTS IN FLUID METERS," communicated to me by John Orlando
Johnson, a person resident in the City, County, and State, of New
York, United States of America, Gentleman, and have petitioned Her
Majesty to grant unto me, my executors, administrators, and assigns,
Her Royal Letters Patent for the same, and made solemn declaration
that it is a communication.
NOW KNOW YE, that I, the said Henri Adrien Bonneville, do hereby
declare that the following Complete Specification, under my hand and
seal, fully describes and ascertains the nature of the Invention, and
the manner in which the same is to be performed, reference being had
to the accompanying Drawing and to the letters marked thereon, that
is to say:
The Invention consists in a fluid meter composed of a spiral blade
mounted on a shaft, one end of which extends through a hole formed
in an elbow joint of the fluid supply, pipe, and connects by suitable
gear with a registering apparatus, while its other end is stepped in the
end of a screw or pin extending through another elbow joint that
connects with the fluid discharge pipe in combination with a spiral
guide curve, which is firmly secured in the pipe which encloses the
measuring blade in such a manner that whenever the fluid supply pipe
is opened and the fluid allowed to pass over the guide curve to the
measuring blade a revolving motion is imparted to the shaft, and
thereby the revolutions of the measuring blade and the number of.
gallons or cubic feet of fluid which pass through the pipe are registered.
The registering mechanism is enclosed in a chamber which is cast
solid with or otherwise rigidly attached to the supply pipe, and from
the lowest point of this chamber extends a pipe into that part of the
supply pipe which contains the measuring blade, so that the fluid which
may leaks past the shaft into the registering chamber runs back on
the measuring blade and assists in imparting motion to the same.
This Invention is illustrated in the accompanying Drawing, which
represents a vertical central section of the meter.
In this Drawing the letter A designates a cylindrical case or piece of
pipe, which connects by an elbow E with the fluid supply pipe, and by s
an elbow F with the fluid discharge pipe. In the pipe A is firmly
secured a spiral guide curve B; and through this guide curve extends a

page_text: shaft D, on which is mounted the spiral measuring blade C. The form
of this measuring blade, and also that of the guide curve, resembles an
auger; but the threads of the guide curve run in an opposite direction
to those of the measuring blade, so that the fluid passing down over
the guide curve strikes the measuring blade to the best possible
advantage for the purpose of imparting to the same a revolving motion.
The shaft D is stepped in the end of a screw G which passes through
the elbow joint F, and its upper end extends through a hole in the
elbow joint E, and is steadied by a screw I with a centre point, so that
the same revolves with the least possible friction. Said shaft connects
by a worm J with the registering mecanism, which is enclosed in a
chamber H that is cast solid with or otherwise firmly attached to the
elbow E, and provided with a transparent face through which the
motions of the registering mechanism may be observed. From the
lowest corner of the chamber H extends a pipe K down into the
pipe A, so that the fluid which leaks past the shaft D falls down upon
the measuring blade and assists in turning the same round.
When the supply pipe and the discharge pipe are both opened the
fluid which passes through pipe A. imparts to the spiral blade Ca
revolving motion, and by the registering mechanism the quantity of
fluid which has passed through the meter is correctly indicated.
It must be remarked that this meter can be placed in an upright or
in a horizontal or inclined position, as may be desirable.
Having thus described the nature of the said improvements, and
the manner of carrying them into effect, what I claim is the com-
bination of the spiral guide curve B with the auger shaped measuring
blade C, pipe A, shaft D, and with a suitable registering mechanism
enclosed in a chamber H, all constructed and operating substantially
in the manner herein shown and described.
In witness whereof, I, Henri Adrien Bonneville, have hereto set
my hand and seal, this Second day of July, in the year of our
Lord One thousand eight hundred and seventy-three.