IMPROVED MEANS OR ARRANGEMENTS FOR FACILITATING THE APPLICATION AND USE 07 PROVISIONAL SPATION
Year: 1883

page_text: LETTERS PATENT to Joseph John Tylor of N° 11 Little Queen Street, in
the City of Westminster, Civil Engineer for an Invention of " IMPROVED
MEANS OR ARRANGEMENTS FOR FACILITATING THE APPLICATION AND USE 07
PROVISIONAL SPECIFICATION left by the said Joseph John Tylor at the
Office of the Commissioners of Patents on the 17th April 1883.
JOSEPH JOHN TYLOR, of N° 11, Little Queen Street, in the City of West-
minster, Civil Engineer, "IMPROVED MEANS OR ARRANGEMENTS FOR FACILITATING
THE APPLICATION AND USE OF APPARATUS FOR DETECTING LEAKS IN WATER OR
GAS PIPES
"
This Invention relates to improved means for facilitating more especially the use
of telephones or microphones for detecting leaks on the system for which a
patent was granted to Abbott Quincey Ross, bearing date the 19th day of July,
A.D. 1882, and numbered 3430, and has for object the avoidance of the necessity
for fixing a stop-cock in the service pipe before the existence of waste can be
ascertained, but it is also applicable to cases where means other than telephones or
microphones are employed for distinguishing the sounds occasioned by the passage
of water or gas running to waste.
The Invention consists in connecting to the pipe or channel in which leakage or
flow is to be detected, a prolongation or projecting piece composed of a material which
is a good conductor of sound, such prolongation or projecting piece being continued
from the said pipe or channel up to, or as far as, the ground or other accessible
position, the telephone, microphone, or other apparatus for detecting the sound can
then easily be applied to the end of the said prolongation or projecting piece with-
out disturbing the ground or other material surrounding the pipe, and without
requiring a stop cock and special box to surround the same.

page_text: As leakage in water mains and communication pipes unaccompanied by consump-
tion generally occurs only at night, it is necessary that the inspector of waste
should have some simple means of finding the position of each house connection,
and of being able to hear leakage through it, without touching the pipe itself,
which may be at a distance of two feet or more below the ground, and as in many
water works these communication pipes are not provided with any stop cocks or
means of access from the surface, the present invention is designed to supply the
place of such means of access, and to provide a cheaper means of access in the case
of new services than any heretofore in use; it also marks the position of the pipe
or channel so that the inspector has no difficulty in finding such position, and in
ascertaining by the sound, either by day or night, whether leakage is going on
or not

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Joseph John Tylor in the Great Seal Patent Office on the
17th October 1883.
JOSEPH JOHN TYLOR, of 11 Little Queen Street, in the City of Westminster
Civil Engineer "IMPROVED MEANS OR ARRANGEMENTS FOR FACILITATING THE
APPLICATION AND USE OF APPARATUS FOR DETECTING LEAKS IN WATER OR GAS
PIPES
»
This invention relates to improved means for facilitating, more especially, the
use of Telephones or microphones for detecting leaks on the system for which a
patent was granted to Abbott Quincey Ross, bearing date the 19th day of July
A.D. 1882. and numbered 3430, and has for object the avoidance of the necessity
for fixing a stop cock in the service pipe before the existence of waste can be
ascertained, but it is also applicable to cases where means other than telephones or
microphones are employed for distinguishing the sounds occasioned by the passage
of water or gas running to wasto.
The invention consists in connecting to the pipe or channel, in which the leakage
or flow is to be detected, a prolongation or projecting piece composed of a material
which is a good conductor of sound; such prolongation, or projecting piece forming
what may be called a sound chamber which is continued from the said pipe or
channel up to, or as far as the surface of the ground or other accessible position,
the telephone, microphone, sounding rod, or other apparatus for detecting the
sound can then easily be applied to the end of the said prolongation or sound
chamber without disturbing the ground or other material surrounding the pipe,
and without requiring a stop cock and special box to surround the same.
In the sheet of drawings hereto annexed are represented various arrangements
of apparatus in accordance with the invention.
Figure 1 illustrates one arrangement. A is the pipe or channel in which the
leakage or flow is to be detected. B is the prolongation or projecting piece which
forms the sound chamber and which may be conveniently formed of a length of
iron pipe to the lower end of which is welded or otherwise attached a forked
piece C in the branches of which are formed holes through which is passed a bolt D
for securing the prolongation or sound chamber to the pipe or channel A. and for
obtaining good contact between the sound chamber and the said pipe or channel.
The upper end of the sound chamber B may be closed by a cap E or by being
welded over, and in some cases it may be broadened out as shown to offer a larger
surface so as to make it more easily found for the application of the telephone,
microphone sounding rod or other sound transmitting or increasing device. By
removing the
cap
E access can be had to the pipe A through the hollow sound
chamber B for the application direct thereto of the stem of the telephone or other
instrument employed.
Figure 2 illustrates an arrangement more especially applicable to new pipes or
channels, the pipe A being threaded through the bow C or the latter passed over
the pipe A when the latter is being fixed, the set screw D serves to secure the
apparatus to the pipe A in the required position.
Figures 3 and 4 illustrate arrangements in which the prolongation or sound
chamber B is connected to the pipe A by clips or cramps and bolts and nuts.

page_text: Figure 5 illustrates the sound chamber B composed of a plain piece of pipe, the
lower end of which is notched out so as to fit over the pipe A, and in order to
cause the sides of the said notch to spring tightly against the pipe A the lower
end of the sound chamber B may be split up a short distance as at G. The
sound chamber B may be filled with dry wood F to facilitate the transmission of
sound.
Figure 6 illustrates an arrangement in which the sound chamber B is connected
to the pipe A by means of a short length of lead pipe H the lower end of which
is split and the two branches thus formed are squeezed round the pipe A after the
manner of a clip. This arrangement combines great cheapness with good contact
between the sound chamber and the pipe and avoids galvanic action between
them.
In the examples above described and shown in the Figures 1 to 6 of the
drawings, the prolongation or sound chamber B is not connected internally with
the pipe or channel A. so as to allow water or gas to pass into it but in Figure 7
the prolongation or sound chamber B is screwed into a T piece I in the wrought
iron pipe A so that water or gas, as the case may be, can pass from the pipe A to
the end of the sound chamber B.
Figure 8 shows a similar arrangement applied to a lead pipe A, the T piece I
being furnished at each end with screw unions K K.
Instead of filling the sound chamber with dry wood as shown in Figure 5, it
may be filled with cement, or with carbon or other good sound conducting
material. If carbon be employed it may be prepared as for microphonic use
or be employed as a rod.
As leakage in water mains and communication pipes unaccompanied by
consumption generally occurs only at night, it is necessary that the inspector of
waste should have some simple means of finding the position of each house
connection, and of being able to hear leakage through it, without touching the
pipe itself, which may be at a distance of two feet or more below the ground; and
as in many water works these communication pipes are not provided with any
stop cocks, or means of access from the surface, the present invention is designed to
supply the place of such means of access, and to provide a cheaper means of access
in the case of new services than any heretofore in use; it also marks the position
of the pipe or channel so that the inspector has no difficulty in finding such position,
and in ascertaining by the application of a telephone, microphone, sounding rod
or other sound conducting or sound increasing device to the end of the prolongation
or sound chamber B hereinbefore described and illustrated in the drawing whether
leakage is going on or not, either by day or night. The arrangements hereinbefore
described and illustrated in the drawings are much more sensitive to sound than
means which have been heretofore experimented with, illustrations of which
are given in Figures 9 and 10 and with which it has been found difficult to
determine whether the leakage is near to or at some distance from the point at
which the detecting apparatus is employed, but with my improved apparatus the
determination of the position of the leak is much facilitated.
Having now described the nature of the said invention and the manner in
which the same is to or may be carried into effect, I would have it understood that
what I claim is :-
First. For the purpose of facilitating the use of telephones, microphones, sounding
rods or other sound conducting or sound increasing devices for detecting
leaks in water or gas pipes, the employment of a hollow sound chamber
with or without a cap at the outer end such hollow sound chamber being
connected with the pipe or channel through which the water or gas flows
and continued to the surface of the ground or other convenient point as
herein before described and illustrated in Figures 1 to 8 of the drawings
hereto annexed.

page_text: Second. Connecting the hollow sound chamber with the pipe or channel so that
water or gas can pass into it from the said pipe or channel as hereinbefore
described and illustrated in Figures 7 and 8 of the drawings hereto annexed.
In witness whereof, I, the said Joseph John Tylor have hereunto set my hand
and seal this sixteenth day of October in the year of our Lord One thousand
eight hundred and eighty three.