IMPROVED AIR ECONOMIZER APPLICABLE FOR MINING AND OTHER PURPOSES "
Year: 1882

page_text: LETTERS PATENT to William Teague, Junior, of Tincroft, Redruth in the
County of Cornwall, for an invention of IMPROVED AIR ECONOMIZER
APPLICABLE FOR MINING AND OTHER PURPOSES
"3
"
PROVISIONAL SPECIFICATION left by the said William Teague, junior,
at the Office of the Commissioners of Patents on the 1st April 1882.
WILLIAM TEAGUE Junior of Tincroft, Redruth in the County of Cornwall
IMPROVED AIR ECONOMIZER APPLICABLE FOR MINING AND OTHER PURPOSES
"
This invention consists mainly in the adoption of air economizers specially
adapted to mining and tunnelling where speed is required.
During blasting a larger amount of air is used, and it is not unusual for all the
air to be left out of the reservoir.
Now according to my invention the work may be resumed without the delay of
filling the reservoirs before having the desired pressure to commence drilling; at
the same time it prevents an unnecessary waste of air.
In carrying out my invention I proceed mainly as follows:-The air from the
compressor is forced into a pipe which leads to any required place, the air entering
the reservoir only at a certain pressure through a safety valve which is regulated
by a lever. A compensation piston is used with suitable rod to counteract the
pressure of air in the reservoir said rod being attached to the safety valve.---An
equilibrium valve allows the air to freely escape from the reservoir when required
by the absence of pressure in the air pipe and at the same time when the pressure
is greater in the air pipe the said valve will prevent its escape to the reservoir.
Important point or feature is that my self acting air economizer can be worked
by two valves and one piston, but I do not confine myself to same

page_text: t
SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said William Teague, junior, in the Great Seal Patent Office on
the 30th September 1882.
WILLIAM TEAGUE Junior of Tincroft Redruth in the County of Cornwall
"IMPROVED AIR ECONOMIZER, APPLICABLE FOR MINING AND OTHER PURPOSES
33
This Invention consists substantially in the adoption of air economizers, specially
adapted to mining and tunnelling where speed is required.
During blasting a larger amount of air is used and it is not unusual for all the
air to be left out of the reservoir.
Now according to my Invention, the work may be resumed without the delay
of filling the reservoirs before having the desired pressure to commence drilling, at
the same time, it prevents an unnecessary waste of air.
In carrying out my Invention, I proceed mainly as follows:-The air from the
compressor B is forced into a pipe which leads to any required place, the air
entering the reservoir A only at a certain pressure, through a safety valve C, which
is regulated by a lever C.--A compensation piston D is used, with suitable rod as
shown, to counteract the pressure of air in the reservoir A, said rod being attached
to the safety valve C-The equilibrium valve E allows the air to freely escape
from the reservoir A, when required by the absence of pressure in the air pipe B,
and at the same time when the pressure is greater in the air pipe B, the said
valve E will prevent its escape to the reservoir A,
An important point or feature is that my self acting air economizer can be
worked by two valves and one piston, but I do not confine myself to same.
It is evident that the Invention above described can be adapted for water or
steam as well as air.
Having now particularly described and ascertained the nature and object of the
said Invention, and in what manner the same is to be performed or carried out
in practice, I hereby declare that I claim the Invention of "Improved air
economizer, applicable for mining and other purposes," substantially as hereinbefore
set forth and described and illustrated by the accompanying drawing.
In Witness whereof I the said William Teague Junior have hereunto set my
hand and seal this thirtieth day of September in the year of our Lord
one thousand eight hundred and eighty two.
Witness
T. MORGAN
21 Cockspur Street
London S. W.
WILLIAM TEAGUE J³. (L.S.)