Year: 1886

page_text: Date of Application, 10th Aug., 1886
Complete Left, 10th May, 1887.
Complete Accepted, 10th June, 1887.
We JOHN HUBBARD and STEPHEN JOHN WHITBREAD both of 10 Great Percy
Street, Kings Cross, in the County of Middlesex, Gas Meter Manufacturers do hereby
declare the nature of this invention to be as follows:-
This invention has for its object the construction of dry gas meters in such a way
as to reduce the liability to incorrect measurement, and to reduce also the friction of
the meter, while admitting of the ordinary square form of case being used.
The invention consists in strengthening each diaphragm by the application of four
metallic shields, so arranged that while giving rigidity to the parts necessary, do not
affect the flexibility of those portions requiring to remain pliable, and the diaphragms
are not therefore so likely to become unduly distended or contracted, or destroyed by
accumulation of condensation as in the ordinary meter, and thereby rendered unfit
to be trusted as a correct measuring instrument. Each diaphragm is attached to a
rectangular metallic frame, having a vertical partition in the centre, so as to form a
measuring chamber on each side of it. At the top of each flag-rod there is an arm
which is fixed to the flag-rod at one end and pivotted to a lever at the other, the
other end of each lever being pivotted to the tangent screw of the vertical spindle.
The arms are made much longer than usual, and by arranging them so that they
cross one another, a much greater leverage is effected, and as a result the meter works
with less friction than usual, thereby ensuring greater steadiness of the lights.
Meters constructed as described are much more easily and cheaply cleaned and
repaired, the case being so arranged that by removing a small portion of the front,
or back, or both, access can be got to the interior with the greatest facility and with-
out removing the whole of the back or front as in ordinary meters.
Dated this 10th day of August 1886.
W. H. BENNETT,
Agent for the Applicants.

page_text: We JOHN HUBBARD and STEPHEN JOHN WHITBREAD, both of 10 Great Percy
Street, King's Cross, in the County of Middlesex Gas Meter Manufacturers 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 dry gas meters in such a way
as to reduce the liability to incorrect measurement, and to reduce also the friction of
the meter, while admitting of the ordinary square form of case being used.
In order that the invention may be easily understood drawings are attached hereto,
of which the following is a description. Fig. 1 is a front elevation of the meter
with part of the front casing removed. Fig. 2 is a front elevation of the meter
showing a portion of the front that is exhibited in Fig. 3 and made removable, taken
off, and Fig. 4 is a plan of the top of the meter, a portion of the top casing being
removed. In each of the Figs. similar letters.refer to the same parts.
The invention consists in strengthening each leather diaphragm A by the application
of four metallic shields B so arranged that while giving rigidity to the parts necessary
do not affect the flexibility of those portions requiring to remain pliable, and the
diaphragms are not therefore so likely to become unduly distended or contracted or
destroyed by accumulations of condensation as in the ordinary meter. Each
diaphragm is attached to a rectangular metallic frame Chaving a vertical partition in
the centre, so as to form a measuring chamber on each side of it.
flag rod D there is an arm E which is fixed to the flag rod at one end and pivotted
At the top of each
to a link or lever F at the other, the other end of each link being pivotted to the
tangent screw G of the vertical spindle. The arms E are made much longer than
usual and by arranging them so that they cross one another as seen in the drawing
Fig. 4 a much greater leverage is effected, and as a result the meter works with less
friction than usual, thereby ensuring greater steadiness of the lights.
Meters constructed as described are much more easily and cheaply cleaned
and repaired, the case H being so arranged that by removing a small portion of the
front I Fig. 3, as seen in Fig. 2, or back, or both, access can be got to the interior with
the greatest facility and without removing the whole of back or front, as in
ordinary meters.

page_text: Having now particularly described and ascertained the nature of our said invention,
and in what manner the same is to be performed, we declare that what we claim is,
1. The construction of dry gas meters with a rectangular metallic frame C, as
herein described and shown on the drawings.
2. The construction of dry gas meters with metallic shields B applied to diaphragms
of a square form, as herein described and shown on the drawings.
3. The arrangement of the flag arms E in reference to the tangent screw, in com-
bination with square diaphragm meters, as herein described and shown on the
drawings.
W. H. BENNETT,
Agent for the Applicants.