AN IMPROVED METHOD OF EXTRACTING DELETERIOUS AND EXPLOSIVE GASES FROM MINES as follows
Year: 1884

page_text: I, JOHN HEATH of Sneyd House, Burslem in the County of Stafford, Colliery
Manager do hereby declare the nature of my said Invention for "AN IMPROVED
METHOD OF EXTRACTING DELETERIOUS AND EXPLOSIVE GASES FROM MINES
as follows:-
22 to be
The object of this Invention is to provide a means of extracting the deleterious
and explosive gases from mines or underground workings, whether such gases issue
from newly broken ground, old gobs, goafs or other abandoned workings, which
means does not allow the gases to enter the ordinary air courses and is independent
of and entirely separate from the means of ventilation employed.
The gases when extracted may be utilized for lighting, generating steam, heating,
firing bricks, earthenware or any other such purpose and chemicals. or other
properties may be extracted therefrom.
According to this Invention I place pipes or tubes down the shaft and through
the underground roads to wherever the gas exudes from the strata or is collected
from gobs, goafs or old abandoned workings or I bore holes from the surface down
to the mines or strata or wherever large quantities of gas exist and by means of
fans, exhausting engines or other mechanical appliance I draw the gases through
the pipes or tubes or holes bored and discharge the said gases through other tubing
leading where required.
This Invention differs from all others having a similar object inasmuch as by my
arrangement of tubing and exhausting appliances & suction is formed throughout
the whole length of the piping until clear of the shaft so should there be a slight
deficiency at any joint of the pipes or tubing it would draw in from the mine and
gas would not escape from such deficiency or leakage into the air courses as in other
arrangements is the case. It also differs in its being entirely separate from the
ventilation, or from the ventilating pipes and apparatus introduced by other
Inventions.
By this my Invention all risk is obviated of vitiating and rendering dangerous
the ventilating current.

page_text: I, JOHN HEATH, of Sneyd House, Burslem in the County of Stafford, Colliery
Manager, do hereby declare the nature of my said Invention for "AN IMPROVED
METHOD OF EXTRACTING DELETERIOUS AND EXPLOSIVE GASES FROM MINES" and
in what manner the same is to be performed to be particularly described and
ascertained in and by the following statement reference being had to the accom-
panying drawings and to the letters of reference marked thereon that is to say :-
The object of this invention is to provide a means of extracting the deleterious
and explosive gases from mines or underground workings whether such gases
issue from newly broken ground, old goba, goafs, or other abandoned workings,
which means does not allow the gases to enter the ordinary air courses and is
independent of and entirely separate from the means of ventilation employed.
Chemicals or other properties may be extracted from the gases when drawn from
the mines, and such gases may be utilized for lighting, generating steam, heating;
firing bricks, earthenware &c; or any other such purposes.
According to this invention I place pipes or tubes down the shaft and through
the underground roads to wherever the gas exudes from the strata or is collected
from gobs, goafs, or old abandoned workings; or I bore holes from the surface
down to the mines or strata, or wherever large quantities of gas exist, and I draw
the gases through the pipes or tubes, or holes bored aforesaid, and discharge the
said gases through other tubing leading where required. When said pipes or tubes
are placed in the downcast shaft, I employ fans, exhausting engines, or other
mechanical appliances for drawing off the gases, but if placed in the upcast shaft
the atmospheric pressure is sufficient to carry gases to the surface without the aid
of exhausting appliances.
And in order that this my invention may be fully understood reference is had to
the accompanying drawings and to the letters of reference marked thereon:-
a are the pipes or tubes placed down the shaft A and through the underground
roads to where the gas exudes. b is the fan (or other mechanical exhausting
appliances) by which the gases are drawn through other pipes c to gasometer B and
thence it is conducted where required. Back pressure valves d d may be fitted as
shewn when desired, C is the coal seain.
.
This invention differs from all others having a similar object inasmuch as by
my arrangement of tubing and exhausting appliances (when such exhausting
appliances are requisite) a suction is formed throughout the whole length of the
piping until clear of the shaft so should there be a slight leakage at any joint of
the pipes or tubing the gas or air would be drawn in from the mine and gas would
not escape from such deficiency or leakage into the air courses as in other arrange-
ments is the case. There is in this my arrangement no accumulation or storage of
gas in the mine itself as in other inventions which accumulation or storage is
prohibited by the Mines Regulation Act.
This my invention also differs in its being entirely separate from the ventilation
or from the ventilating pipes and apparatus introduced by other inventions.
By this my invention all risk is obviated of vitiating and rendering dangerous
the ventilating current.

page_text: Having now particularly described and ascertained the nature of this my
Invention and in what manner the same is to be performed I declare that what
I claim is
The mode or method of extracting deleterious and explosive gases from mines
substantially as herein before set forth and described.

page_text: I, JOHN HEATH of Sneyd House, Burslem in the County of Stafford, Colliery.
Manager do hereby declare the nature of my said Invention for "AN IMPROVED
METHOD OF EXTRACTING DELETERIOUS AND EXPLOSIVE GASES FROM MINES
as follows:
"
to be
The object of this Invention is to provide a means of extracting the deleterious
and explosive gases from mines or underground workings, whether such gases issue
from newly broken ground, old gobs, goafs or other abandoned workings, which
means does not allow the gases to enter the ordinary air courses and is independent
of and entirely separate from the means of ventilation employed.
The gases when extracted may be utilized for lighting, generating steam, heating,
firing bricks, earthenware or any other such purpose and chemicals or other
properties may be extracted therefrom.
According to this Invention I place pipes or tubes down the shaft and through
the underground roads to wherever the gas exudes from the strata or is collectel
from gobs, goafs or old abandoned workings or I bore holes from the surface down
to the mines or strata or wherever large quantities of gas exist and by means of
fans, exhausting engines or other mechanical appliance I draw the gases through
the pipes or tubes or holes bored and discharge the said gases through other tubing
leading where required.
This Invention differs from all others having a similar object inasmuch as by my
arrangement of tubing and exhausting appliances a suction is formed throughout
the whole length of the piping until clear of the shaft so should there be a slight
deficiency at any joint of the pipes or tubing it would draw in from the mine and
gas would not escape from such deficiency or leakage into the air courses as in other
arrangements is the case. It also differs in its being entirely separate from the
ventilation, or from the ventilating pipes and apparatus introduced by other
Inventions.
By this my Invention all risk is obviated of vitiating and rendering dangerous
the ventilating current.

page_text: I, JOHN HEATH, of Sneyd House, Burslem in the County of Stafford, Colliery
Manager, do hereby declare the nature of my said Invention for "AN IMPROVED
METHOD OF EXTRACTING DELETERIOUS AND EXPLOSIVE GASES FROM MINES" and
in what manner the same is to be performed to be particularly described and
ascertained in and by the following statement reference being had to the accom-
panying drawings and to the letters of reference marked thereon that is to say:-
The object of this invention is to provide a means of extracting the deleterious
and explosive gases from mines or underground workings whether such gases
issue from newly broken ground, old gobs, goafs, or other abandoned workings,
which means does not allow the gases to enter the ordinary air courses and is
independent of and entirely separate from the means of ventilation employed.
Chemicals or other properties may be extracted from the gases when drawn from
the mines, and such gases may be utilized for lighting, generating steam, heating;
firing bricks, earthenware &c; or any other such purposes.
According to this invention I place pipes or tubes down the shaft and through
the underground roads to wherever the gas exudes from the strata or is collected
from gobs, goafs, or old abandoned workings; or I bore holes from the surface
down to the mines or strata, or wherever large quantities of gas exist, and I draw
the gases through the pipes or tubes, or holes bored aforesaid, and discharge the
said gases through other tubing leading where required. When said pipes or tubes
are placed in the downcast shaft, I employ fans, exhausting engines, or other
mechanical appliances for drawing off the gases, but if placed in the upcast shaft
the atmospheric pressure is sufficient to carry gases to the surface without the aid
of exhausting appliances.
And in order that this my invention may be fully understood reference is had to
the accompanying drawings and to the letters of reference marked thereon:-
a are the pipes or tubes placed down the shaft A and through the underground
roads to where the gas exudes is the fan (or other mechanical exhausting
appliances) by which the gases are drawn through other pipes c to gasometer B and
thence it is conducted where required. Back pressure valves d d may be fitted as
slewn when desired, C is the coal seam.
This invention differs from all others having a similar object inasmuch as by
my arrangement of tubing and exhausting appliances (when such exhausting
appliances are requisite) a suction is formed throughout the whole length of the
piping until clear of the shaft so should there be a slight leakage at any joint of
the pipes or tubing the gas or air would be drawn in from the mine and gas would
not escape from such deficiency or leakage into the air courses as in other arrange-
ments is the case. There is in this my arrangement no accumulation or storage of
gas in the mine itself as in other inventions which accumulation or storage is
prohibited by the Mines Regulation Act.
This my invention also differs in its being entirely separate from the ventilation
or from the ventilating pipes and apparatus introduced by other inventions.
By this my invention all risk is obviated of vitiating and rendering dangerous
the ventilating current.