IMPROVEMENTS IN WET GAS METERS AND LOW PRESSURE WATER METERS
Year: 1882

page_text: LETTERS PATENT to William Coulson Parkinson of Cottage Lane City Road,
in the County of Middlesex for an invention of "IMPROVEMENTS IN WET GAS
METERS AND LOW PRESSURE WATER METERS,"
PROVISIONAL SPECIFICATION left by the said William Coulson Parkinson
at the Office of the Commissioners of Patents on the 6th May 1882.
WILLIAM COULSON PARKINSON of Cottage Lane, City Road, in the County of
Middlesex "IMPROVEMENTS IN WET GAS METERS AND LOW PRESSURE WATER
METERS,"
This invention has for its object the production of gas meters and low pressure
water meters in such a manner as to effect a saving of both material and labour,
and to construct them so that greater facilities are afforded for cleansing them,
while a tendency to reduce the friction of the instrument when at work is a
result.
The invention has reference to the measuring drum or wheel of the meter. The
ordinary measuring drum is made with four compartments separated from one
another by partitions, or as they are technically called "quarters," each compartment
being covered by a corresponding hood both at back and front.
The present improvements consist in dividing the drum or wheel into three
compartments only, whereby the metal contained in one partition and two hoods,
which would be used if the drum were made in the ordinary way, is saved, and the
labour entailed in the construction is reduced in the like proportion. In order
however to ensure the proper action of the meter, the lap of the inlet and outlet
hoods has to be reduced, and the form of the hoods so altered as to adapt them to
the new arrangement. There being less metal in these than in ordinary drums,
they are lighter, and as a consequence have a tendency to revolve with less friction.
In the ordinary drums great difficulty is often experienced in removing the deposit
which sometimes accumulates in them, but from the peculiar arrangement of the
partitions and the form of the hoods of the improved drum, much greater facilities
are offered for cleaning it, when necessary, by means of brushes or other suitable
instruments which can be passed into the compartiments and applied through the
central opening.
By these means considerable improvements both economical and otherwise aro
effected, while the capacity and general efficiency of the meter remain unimpaired.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said William Coulson Parkinson in the Great Seal Patent Office on the
3rd November 1882.
WILLIAM COULSON PARKINSON of Cottage Lane, City Road, in the County of
Middlesex "IMPROVEMENTS IN WET GAS METERS, AND
METERS"
.
LOW PRESSURE WATER
This invention has for its object the production of gas meters and low pressure
water meters in such a manner as to effect a saving of both material and labour,
and to construct them so that greater facilities are afforded for cleansing them,
while a tendency to reduce the friction of the instrument when at work is a
result
The invention has reference to the measuring drum or wheel of the meter. The
ordinary measuring drum is made with four compartments separated from one
another by partitions, or as they are technically called "quarters," each compartment
being covered by a corresponding hood, both at back and front.
The present improvements consist in dividing the drum or wheel into three
compartments only, whereby the metal contained in one partition and two hoods
which would be used if the drum were made in the ordinary way is saved, and
the labour entailed in the construction is reduced in the like proportion.-In order
however to ensure the proper action of the meter, the lap of the inlet and outlet
hoods has to be reduced, and the form of the hoods so altered as to adapt them
to the new arrangement. There being less metal in these than in ordinary drums,
they are lighter, and as a consequence have a tendency to revolve with less friction.
In the ordinary drums great difficulty is often experienced in removing the deposit
which sometimes accumulates in them, but from the peculiar arrangement of the
partitions and the form of the hoods of the improved drum, much greater facilities
are offered for cleaning it, when necessary, by means of brushes or other suitable
instruments which can be passed into the compartments and applied through the
central opening.
By these means considerable improvements both economical and otherwise are
effected, while the capacity and general efficiency of the meter remain unimpaired
In order that the foregoing may be more easily understood drawings are attached
hereto of which the following is a description. Fig. 1 is an end view of the inlet
hoods, three in number, which are so altered in form as to give the same amount of
seal as in the ordinary drum, while the area of each hood is no greater than that
of each of the ordinary ones, although there are only three in lieu of four. Fig 2
is a view of the outlet end of the wheel or drum showing the three hoods of similar
forin and construction. Fig. 3 is an interior view of the drum, that is to say, a
view as seen when part of the cylindrical case is removed and a part of the hollow-
cover attached. Fig 4 shows the three partitions. which are precisely the same as
those ordinarily used, the number only being reduced from four to three. In each
of the Figs similar letters refer to the same parts.-In Figs 1 and 2 A is the
cylindrical part of the drum or wheel, B the shaft and C, C, C: the hoods shaped
as shown and overlapping to the extent also as shown. In Fig 3 part of the hollow-
cover D is depicted, and in Fig 4 E, E, E represent the partitions.
Having now described and particularly set forth the nature of this invention and
the manner in which the same is or may be carried into effect I would observe in
conclusion that I do not confine or restrict myself to the precise details or arrange-
ments that I have described or referred to as variations may be made therefrom
without deviating from the principles or main features of this invention, but what

page_text: I consider to be novel and original and therefore claim as the invention secured
to me by the herein-before in part recited Letters is,-The construction of gas
meters, and low pressure water meters, each having three partitions and three
inlet and three outlet hoods only, shaped and arranged as herein described and
shown on the drawings.
In witness whereof I the said William Coulson Parkinson have hereunto
set my hand and seal this Third day of November in the year of our
Lord One thousand eight hundred and eighty two.
WILLIAM COULSON PARKINSON (L.s.)