IMPROVEMENTS IN WET GAS METERS
Year: 1862

page_text: LETTERS PATENT to John Winsborrow, of No. 4, Samson Terrace,
Marlborough Road, Dalston, in the County of Middlesex, Gas Meter
Maker, for the Invention of "IMPROVEMENTS IN WET GAS METERS."
Sealed the 17th October 1862, and dated the 24th April 1862.
PROVISIONAL SPECIFICATION left by the said John Winsborrow at the
Office of the Commissioners of Patents, with his Petition, on the 24th
April 1862.
I, JOHN WINSBORROW, of No. 4, Samson Terrace, Marlborough Road,
Dalston, in the County of Middlesex, Gas Meter Maker, do hereby declare
the nature of the said Invention for "IMPROVEMENTS IN WET GAS METERS,"
to be as follows:-
The object of the improvements is to facilitate and render more uniform the
supply of gas by wet gas meters. For this purpose the inlet valve in place of
being applied direct to the float is attached to it by leverage in such manner
that when the float rises and falls a short distance the distance of motion of
the valve is increased in proportion to the difference in the difference of length
of leverage employed. The float moves in a chamber sealed above the water
line from the inlet valve so as to have gaseous communication only with the
measured gas chamber.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said John Winsborrow in the Great Seal Patent Office on the
24th October 1862.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
WINSBORROW, of No. 4, Samson Terrace, Marlborough Road, Dalston, in .the
County of Middlesex, Gas Meter Maker, send greeting. .

page_text: WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-fourth day of April, in the year of our Lord
One thousand eight hundred and sixty-two, in the twenty-fifth year of
Her reign, did, for Herself, Her heirs and successors, give and grant unto
me, the said John Winsborrow, Her special licence that I, the said John
Winsborrow, my executors, administrators, and assigns, or such others as I,
the said John Winsborrow, my executors, administrators, and assigns, should
at any time agree with, and no others, from time to time and at all times
thereafter during the term therein expressed, should and lawfully might
make, use, exercise, and vend, within the United Kingdom of Great Britain
and Ireland, the Channel Islands, and Isle of Man, an Invention for "IMPROVE-
MENTS IN WET GAS METERS," upon the condition (amongst others) that
I, the said John Winsborrow, my executors or administrators, by an in-
strument in writing under my, or their, or one of their bands and seals,
should particularly describe and ascertain the nature of the said Invention,
and in what manner the same was to be performed, and cause the same to
be filed in the Great Seal Patent Office within six calendar months next
and immediately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said John Winsborrow, do hereby declare
the nature of the said Invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement thereof, that is to say:-
The object of the improvements is to facilitate and render more uniform the
supply of gas by wet gas meters. For this purpose the inlet valve in place of
being applied direct to the float is attached to it by leverage in such manner
that when the float rises and falls a short distance the distance of motion of
the valve is increased in proportion to the difference in the length of leverage
employed. The float moves in a chamber sealed above the water line from the
inlet valve so as to have gaseous, communication only with the measured gas
chamber.
But that the nature of the Invention, and means which I adopt in carrying
the same into effect may be better understood, I will proceed to describe the
Drawing annexed.
DESCRIPTION OF THE DRAWING.
Figure 1 shows a sectional side view; and Figure 2 a transverse section of
part of a wet gas meter, with improvements according to my Invention applied
to it. In each of the Figures the same letters are used to indicate corre-
sponding parts wherever they occur.

page_text: a, a, is the main framing of the meter; 6 the inlet passage for the un-
measured gas; and c the outlet for the gas after being measured in its passage
to be consumed. The gas entering by the passage b to be measured, first
enters the chamber d, thence through the valve passage e to the chamber f
from which it passes by an arm from the pipe f³ in the opening f¹ to the
measuring compartments. Water is supplied to the chamber f up to the
line f, and any excess passes away by the overflow pipe f³ to the receiver f",
all which is well understood by persons acquainted with the construction of
wet gas meters. e¹ is the float regulating the extent of opening of the valve e*,
and according to my improvements the valve e in place of being connected
direct to the float e' is attached to it by means of the lever e², one end of which
is supported so as to turn in bearings e³, whilst its other end is by pin joint e
connected to the stem e' of the valve e*, and the float e' is connected to the
levere by pin joint at e, whilst its upper end has a stem, by which it is guided
in its motion as shown.
By these means it will be seen that when a variation takes place in the
height of the water in the chamber f, raising or lowering the float, an increased
amount of motion will be imparted to the valve e, proportionate to the relative
difference in the distance of the points and e', from the point e, which may
be varied.
The upper portion of the float moves in the chamber g, which is sealed off
from the chamber f, to below the water line, by a partition g', and the gaseous
communication to this chamber g, is alone by a passage g with the chamber
containing the measured gas.
Having thus described the nature of the said Invention, and means which
I adopt in carrying the same into effect, I would have it understood that I
do not confine myseif to the precise details shown, so long as the peculiar
character of the Invention be retained, substantially as explained.
In witness whereof, I, the said John Winsborrow, have hereunto set
my hand and seal, this Twenty-third day of October, in the year
of our Lord One thousand eight hundred and sixty-two.
JOHN WINSBORROW. (L.S.)