by-pass
Year: 1896

page_text: Date of Application, 5th Dec., 1896-Accepted, 6th Mar., 1897
Tig. 4, Is front elevation
by-pass.
Fig. 3 shows a side elevation of Fig. 2 with valve or by-pass shown in section.
Fig. 4, shows a new indicator for gauge which shows waste in percentage of
total consumption.
A is the glass gauge tube which is partially filled with liquid preferably coloured,
and which will not freeze or evaporate, the end is covered at B, and has a cap
at C, supply nipple D, and connecting nut E, in Figs. 2 and 3 the supply nipple
terminates in a tapered plug F with by-pass opening G and a corresponding
elengated opening H in the cap passing forwards into the gauge, so that when the
two holes G and H are opposite each other the inlet is open, when turned away it is
closed. The gauge is mounted on a suitable back J of wood, composition, metal or
other suitable substance to form a guard and the marked indicator K in front to
form a guard for the glass in front such indicator being preferably of enamelled
metal, wood or other suitable composition, the whole being held together by
suitable screws or by other means.
When an escape of gas is suspected near some dark place where the meter is
often placed, and it is not desirous to approach the pressure gauge (which is like
Fig. 3.) with a naked light, the nipple is moved half a turn and the gauge is
sealed, the gas is turned off at the meter, and the gauge then can be taken off the
pipe, and taken away to the light, and will show and retain the pressure any
length of time required.
The arrows on the scale indicator (in Figs. 1 and 2) indicate the point at which
the waste commences. I prefer the new scale indicator shown at Fig. 4 the use of
which shows the waste in percentage of total consumption.
The tube is filled with the coloured liquid half way up that is opposite the
division line across the whole face of the scale, the gauge has been duly attached
and pressure turned on, it will force down the liquid at one side of the tube and
raise it equally at the other, when the pressure is excessive the liquid is forced
past the arrows which indicate that the waste of the gas begins and the amount or

page_text: percentage is indicated (if it is left at the same pressure for a given period) of
waste on the amount consumed during that period.
The liquid I employ for the tubes is coloured and one that will not freeze or
evaporate namely sulphuric acid or the like acids, ten parts and distilled water
ninety parts.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is
1. The application of a gas gauge applied to the gas pipes on the public side of
the meter, which indicates the pressure and waste of gas substantially as shown and
-described.
2. Domestic gas gauges applied to gas pipes on the public side of the meter,
-consisting of the tube A partially filled with liquid, cover B cap C, gas supply
nipple D, plain or with by pass valve formed by openings in the tapered plug F,
with indicator K forming a guard for the front, and back J guarding the back of
the glass tube, substantially as shown and described.
3. The method of indicating as shown at Fig. 4. on the domestic gas gauge
"the waste in percentage on the total consumption substantially as shown and
described.
4. The non freezing and non evaporating liquid for charging domestic gas
gauges consisting of sulphuric acid or other like acids and distilled water preferably
-in the proportions substantially as described.
Dated this 2nd day of December 1896.
JOHN E. WALSH,
Patent Agent, Royal Exchange Chambers, Boar Lane, Leeds,
Patent Agent to the Applicant.