An Indicator or Detector of Gas Escapes.
Year: 1895

page_text: Date of Application, 6th June, 1895
Complete Specification Left, 2nd Mar., 1896-Accepted, 6th June, 1896
PROVISIONAL SPECIFICATION.
An Indicator or Detector of Gas Escapes.
We CHARLES JOHN BAILEY of 961 Ashton Old Road Fairfield near
Manchester and SAM WILSON of 163 Wilmslow Road Rusholme Manchester, both
in the County of Lancaster, Plumbers do hereby declare the nature of this
invention to be as follows:-
The object of this invention is to supply apparatus for dectecting whether there
is or there is not an escape of gas from a pipe or set of pipes in a house or other
place, where such escape is considered possible or probable.
The apparatus consists of a small receiving vessel of suitable size and shape
(preferably cylindrical) open at the top and covered by a bell dipping into a space
surrounding the said receiving vessel, this space being filled, or nearly so, with
water or other suitable liquid to act as a lute, and prevent the gas from escaping,
as in a gasholder or gasometer.
This receiving vessel is provided with an inlet and tap at the bottom communi-
cating by a suitable pipe with the gas pipes of the house or other place where
gas is laid on.
دو
This communicating pipe may be flexible tubing in cases, where the detector or
indicator is to be carried from place to place, say for use by plumbers.
At the top of the bell is a guide-rod passing through a suitable fixed eye or
bush preferably made in the top of a containing box or case enclosing the said
receiving vessel, and limiting the action of the bell as hereafter described.
The jacket surrounding the receiving vessel is made with an enlargement or a
spout at the top for convenience of filling and with a suitably closed outlet at the
bottom in case it may be required to run off the liquid forming the lute.
This indicator or detector may as before stated be portable, or it may be a fixture
in the house or other place where it is to be used.
The action and use thereof are as follows:
:-
If it is suspected that the gas fittings or pipes in a house to which one of our
indicators has been applied, are not gas-tight, the gas inlet tap of the said indicator
is opened, and the gas entering will raise the bell, which when it has risen as high
as desired (its action being limited by the eye through which the guide rod
protrudes) is arrested by closing the said gas inlet tap.
The tap of the meter of the house or other place is then closed, and the gas
inlet tap of the indicator is opened.
If the guide rod then shows that the bell remains stationary, the gas pipes and
gas fittings in communication with the indicator are quite gas-tight. If the
rod and bell descend, there is a leakage or escape of gas which should receive
attention:
The rapidity of the descent of the bell and rod indicate the extent of the escape,
and the indicator may be so formed that this extent can be gauged by a watch or
clock, or by suitable mechanism applied to the apparatus.
Dated this 5th day of June 1895.
GEO. DAVIES & SON,
4, St. Ann's Square, Manchester, Agents for the Applicants.

page_text: An Indicator or Detector of Gas Escapes.
CHARLES JOHN BAILEY, Plumber, 961, Ashton Old Road, Fairfield
near Manchester and SAM WILSON, Plumber, 163 Wilmslow Road, Rusholme
Manchester both in the County of Lancaster 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 :-
The subject of this invention is an indicator or detector for gas escapes for
use in connection with gas services applied to dwelling houses and other buildings,
whereby any leakage in the service can be detected, and the amount or volume
of gas lost by the leakage is registered by an indicator or graduated scale.
In order to more clearly describe the nature of this our said invention, we
attach hereunto a sheet of drawings on which similar letters refer to similar
parts.
On reference to Fig. 1 it will be seen that the drawing represents an indicator or
detector enclosed in a box a of wood or other suitable material, which is con-
veniently fixed in any portion of the house or building, and consists of an external
stationary cylindrical vessel of copper or other suitable material partly filled with
water or other liquid and having a vertical tube or cylindrical vessel c secured to,
and projecting through its base, immediately under which is fitted a tap or valve d
which is connected to a main or branch pipe of the service d'.
The inverted cylindrical vessel e is fitted with a guide rod f having at the top
adjustable balance weights g and is free to ascend or descend within the external
stationary cylindrical vessel b.
On opening the tap or vaive d the gas enters the interior of the inverted
cylindrical vessel e causing it to ascend to the top of the box a,-the taps or valves
of all chandeliers, brackets, and other fittings connected with the service of the
house or building, being previously closed-the tap or valve d is then closed, as is
also the main tap or valve at the meter, thus cutting off the entire supply of gas to
the house or building.
The adjustable balance weights g are then placed on the top of the guide rod f
and the tap or valve d is opened, when, if the inverted cylindrical vessel e retains
its highest position, the entire gas service throughout the house or building is
proved to be free from leakage, if, on the contrary, the inverted cylindrical
vessel e descends, the amount or volume of the gas escaping is shown by the
indicator or graduated scale, which is marked off in inches and fractions of au inch
on the inverted cylindrical vessel e.
The external stationary cylindrical vessel b is fitted with an outlet / to enable
the water to be replaced by a fresh supply whenever necessary.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is
- 66
A combination of cylindrical or other shaped vessels or tubes, by which means
the gas service of any dwelling house and other buildings can be tested and any
leakage in same be indicated or detected."
Dated this 2nd day of March 1896.
CHARLES JOHN BAILEY.
SAM WILSON.