IMPROVE- MENTS IN WET GAS METERS
Year: 1864

page_text: LETTERS PATENT to Edward Myers, of Millbauk Row, Westminster, in
the County of Middlesex, Civil Engineer, for the Invention of "IMPROVE-
MENTS IN WET GAS METERS."
'
Sealed the 31st March 1865, and dated the 8th December 1864.
PROVISIONAL SPECIFICATION left by the said Edward Myers at the Office
of the Commissioners of Patents, with his Petition, on the 8th December
1864.
I, EDWARD MYERS, of Millbank Row, Westminster, in the County of
Middlesex, Civil Engineer, do hereby declare the nature of the said Invențion
for "IMPROVEMENTS IN WET GAS METERS," to be as follows:-
This Invention relates to improvements in the arrangement of the overflow
and air tubes for maintaining the proper level of the water in the measuring
drum of. wet gas, meters, and also to prevent the passage of unmeasured gas
through the waste water. chamber. For this purpose, in place of employing
separate tubes for the water overflow and air passages employed for main-
taining the level of the water in wet gas meters, as was described in tho
+

page_text: Specification of a Patent granted to William Esson, dated the 27th day of
August 1858, No. 1942, and also in the Specification of a Patent granted to
myself and William Richard Williams, dated June 24th, 1863, No. 1592,
according to my present improvements I simplify the construction by form-
ing or combining the overflow and air passages in one tube, which tube
connects the water reservoir and waste water chamber together; the stuffing
boxes through which it passes into those chambers being formed with cup
leathers for the tube to slide up and down through; in order to adjust the
capacity of the meter and level of the water therein. A wire is fixed or sol-
dered on the tube, and passes up through the meter to regulate the position
of the overflow passage as desired. The air passage to the reservoir is formed
by a division (by preference inclined) fixed in the tube, and an opening for
the admission of air upwards is formed at the water level; just below this
opening a lip or short branch is applied to form the opening for the overflow
to the waste chamber.
In place of having a division in the waste water chamber, the waste is con-
ducted by a pipe or tube to the bottom of the waste water chamber, and
when the waste water rises to a certain level it passes down a U-shaped over-
flow tube connected to the discharge orifice. I also apply shields to protect
the inlet and outlet passages of wet gas meters to prevent any fraudulent
tampering with the internal parts of the meters...
"
The shields above mentioned consist by preference of metallic plates or
surfaces surrounding the inlet and outlet passages within the case of the meter
to prevent the introduction of any instrument into the interior thereof
Suitable openings or perforations are formed in such shields for the passage
of the gas.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Edward Myers in the Great Seal Patent Office on the
8th June 1865.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, EDWARD
MYERS, of Millbank Row, Westminster, in the County of Middlesex, Civil
Engineer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by. Her. Letters
Patent, bearing date: the Eighth day of December, in the year of our Lord.
One thousand eight hundred and sixty-four, in the twenty-eighth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me, the

page_text: said Edward Myers, Her special licence that I, the said Edward Myers, my
executors, administrators, and assigns, or such others as I, the said Edward
Myers, my executors, administrators, and assigns, should at any time agrec
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 "IMPROVEMENTS IN WET GAS
METERS," upon the condition (amongst others) that I, the said Edward Myers;
my executors or administrators, by an instrument in writing under my, or
their, or one of their hands and seals, should particularly describe and ascer-
tain 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 Edward Myers, 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 :--
This Invention relates to improvements in the arrangement of the overflow
and air tubes for maintaining the proper level of the water in the measuring
drum of wet gas meters, and also to prevent the passage of unmeasured gas
through the waste water chamber. For this purpose, in place of employing
separate tubes for the water overflow and air passages employed for main-
taining the level of the water in wet gas meters, as was described in the
Specification of a Patent granted to William Esson, dated the 27th day of
August 1858, No. 1942, and also in the Specification of a Patent granted
to myself and William Richard Williams, dated June 24th, 1868, No. 1592,
according to my present improvements I simplify the construction by form-
ing or combining the overflow and air passages in one tube, which tube
connects the water reservoir and waste water chamber together, the stuffing
boxes through which it passes into those chambers being formed with cup
leathers for the tube to slide-up and down through, in order to adjust the
capacity of the meter and level of the water therein. A wire is fixed or sol-
dered on the tube and passes up through the meter to regulate the position of
the overflow passage as desired. The air passage to the reservoir is formed
by a division (by preference inclined) fixed in the tube, and an opening for
the admission of air upwards, is formed at the water level; just below this
opening a lip or short branch is applied to form the opening for the overflow
to the waste chamber."

page_text: lip covers an orifice in the side of the tube b, through which orifice the
excess of water passes down the tube 6 into the waste water chamber D.
When the level of the water in the drum case B and chamber C unseals the
orifice a' in the tube a, the gas in the chamber C will pass up through the
orifice a' and tube a into the upper part of the tank or reservoir A, and the
water therein will be caused to flow through the passage or opening A¹ into
the drum case B, and from the case B through the hole or passage c into the
chamber C, until the orifice a¹ in the air tube a is again sealed. a², 6², are
stuffing boxes, furnished with cupped leather packings, through which the
combined tube a, b, passes upwards out of the chamber C into the chamber A,
and downwards into the waste water chamber D, the position of the orifice a¹
being readily adjusted to the proper water line to suit the capacity of the
meter by means of the rod 63 and external screw nut 6 thereon, by which the
tube a, b, can be raised or lowered as required, and it may then be firmly
secured by a seal or otherwise. The waste water as it is discharged from the
lower end of the tube 6 is conducted by the pipe d to the lower part of the
chamber D, and when the water in the chamber D has risen above the outlet
tube e, the excess can be let off by removing the screw plug e'; f is an
inclined plate (having an opening or perforations therein for the passage of the
measured gas) placed across the upper part of the chamber C to prevent the
introduction of any instrument through the outlet pipe c¹ into the interior of
the meter. The inlet passage is also protected in a similar manner by the
plate f, as shewn. The inlet valve g and float g' are the same as described
in the Specification of the Patent last referred to, and as the other parts of the
meter shewn are well known and understood, it will not be necessary for me
to give any further description thereof.
Figure 5 is a vertical section, and Figure 6 an external view, of a modified
arrangement of the air and overflow tube, in which arrangement in place of
employing a separate tube for the passage of the air upwards into the fountain
or supply chamber A, I simply employ a parallel tube a, with a division a**
therein, and I prefer to employ two orifices a', a*, in the upper part of such
tube, as shewn, for the passage of air to the supply chamber; when the upper
orifice a¹ is unsealed by the descent of the water in the chamber C, by which
arrangement of the air passage directly a globule of air passes up the air
tube, the partial vacuum formed in the supply chamber A will be destroyed,
and the water will flow from the chamber C into the measuring druin to re-
adjust the level of the water therein, and to re-seal the orifice a' in the air
tube, the lower orifice a* acting to prevent the rising of the water in the air
tube caused by the partial vacuum formed in the chamber A, thus facilitating

page_text: the action of the "fountain" to re-adjust the level of the water in the
chamber C.
In witness whereof, I, the said Edward Myers, have hereunto set my
hand and seal, the Seventh day of June, in the year of our Lord
One thousand eight hundred and sixty-five.
Witness,
J. G. TONGUE,
Patent Agent,
EDWARD MYERS. (Ls.).
34, Southampton Buildings,
Chancery Lane, W.C.