IMPROVEMENTS IN THE PURIFICATION OF COAL GAS USED FOR PURPOSES OF ILLUMINATION AND IN APPARATUS FOR THE SAME SUCH APPARATUS ALSO CONTROLLING AND REGULATING THE PRESSURE OF COAL GAS WHEN BURNING
Year: 1882

page_text: LETTERS PATENT to Thomas Edward Jones of High Road Tottenham in the
County of Middlesex Journalist for an Invention of IMPROVEMENTS IN THE
PURIFICATION OF COAL GAS USED FOR PURPOSES OF ILLUMINATION AND
IN APPARATUS FOR THE SAME SUCH APPARATUS ALSO CONTROLLING AND
REGULATING THE PRESSURE OF COAL GAS WHEN BURNING
PROVISIONAL SPECIFICATION left by the said Thomas Edward Jones at
the Office of the Commissioners of Patents on the 14th February 1882.
THOMAS EDWARD JONES of High Road Tottenham in the County of Middlesex
IMPROVEMENTS IN THE PURIFICATION OF COAL GAS USED FOR PURPOSes of
ILLUMINATION AND IN APPARATUSES FOR THE SAME SUCH APPARATUS ALSO
CONTROLLING AND REGULATING THE PRESSURE OF COAL GAS WHEN BURNING
My Invention relates to the purification of coal gas as ordinarily supplied for
illuminating purposes by the employment of chromic acid the gas being filtered
through such acid which for convenience snke I prefer shall be intimately inter-
mingled with some fibrous material especially cotton wool
In order that it may be easy to renew the acid and wool (when the former is
exhausted or the latter fouled) I construct a special apparatus for the purpose
which apparatus tends to regulate the supply of gas to the burners preventing
passing at too high a pressure. This apparatus enables me to remove the fibrous
or woolly material at any time so as to replace it with a fresh supply
The apparatus is composed of a vessel of suitable material and size into which
the chromic acid and fibrous material is placed. This is attached to the gas pipes
on any premises after such pipes have proceeded from the meter towards the
points of consumption. The gas enters at one end or side or at the top or bottom
of the vessel and after passing through the fibrous or woolly material impregnated
or intermixed with the chromic acid it comes out of the vessel at a point opposite
the orifice it entered and then passes along the gas pipes for consumption. The vessel
contains an inner vessel, box, or cylinder made of some suitable open material such
Price 41

page_text: as perforated zinc or wire gauze; this second vessel fitting closely within the exterior
one and being filled with the fibrous or woolly material charged with chromic acid.
The cover of the outer vessel must be made to fasten gas tight The inner vessel
may or may not have a cover. By such an arrangement I can at any time at a
very small expenditure of time and trouble remove the inner vessel from the outer
and replace it by another inner vessel containing a fresh supply of fibrous or woolly
material and chromic acid or any other material it may be deemed advisable to
conjoin with the contents of the vessel named to assist in the purification. Taps
or cocks are affixed at inlet or outlet holes of the apparatus to regulate the
admission or omission of gas. A bye pass pipe may also be employed so as to
enable any one to turn the gas direct into the ordinary burners without its going
through the apparatus thereby allowing the inner interior vessel to be removed
without there being any necessity to turn off the gas entirely at the meter.
For most purposes I prefer to use an apparatus formed in the shape of the
letter U constructed out of a bent metal pipe at the apexes or upward end of the
apparatus cylindrically formed interior vessels made of perforated zinc wire netting
or other porous material are inserted these being charged with fibrous or woolly
materials with or partly with chromic acid. These are closed in by any suitable
cover (preferably corks inserted into the ends of the apparatus) The gas enters in
its unpurified state near the top of one apex passing down through fibrous or
woolly material and chromic acid and other material if any be used then it circles
round the bend of one apparatus through the foot of another perforated cylinder
or vessel and after percolating the fibrous woolly or other material in this second
cylinder passes through the outlet tap into the ordinary gas pipe en route to the
burners

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Thomas Edward Jones in the Great Seal Patent Office on the
14th August 1882.
THOMAS EDWARD JONES of High Road Tottenham, in the County of Middlesex
Journalist AN IMPROVEMENT IN THE PURIFICATION OF COAL GAS USED
FOR THE PURPOSES OF ILLUMINATION AND IN APPARATUS FOR THE SAME, SUCH
APPARATUS ALSO CONTROLLING AND REGULATING THE PRESSURE OF COAL GAS
WHEN BURNING
My Invention relates to the purification of coal gas as ordinarily supplied for
illuminating purposes by the employment of chromic acid the gas being filtered
through such acid which for convenience sake I prefer shall be intimately inter-
mingled with some fibrous material especially cotton wool.
In order that it may be easy to renew the acid and wool (when the former is
exhausted or the latter fouled) I construct a special apparatus for the purpose which
apparatus tends to regulate the supply of gas to the burners preventing it passing
at too high a pressure. This apparatus enables me to remove the fibrous or woolley
material and acid at any time so as to replace it with a fresh supply.
The apparatus is composed of a vessel of suitable material and size into which
the chromic acid and fibrous material is placed. This is attached to the gas pipes on
any premises after such pipes have proceeded from the meter towards the points of
consumption. The gas enters at one end or side or at the top or bottom of the
vessel and after passing through the fibrous or woolly material impregnated or
intermixed with chromic acid it comes out of the vessel at a point opposite the
orifice it entered and then passes along the gas pipes for consumption. The vessel
contains an inner vessel box or cylinder made of some suitable open material such
as perforated zinc or wire gauze this second vessel fitting closely within the exterior
one and being filled with the fibrous or woolley material charged with chromic
acid. The cover of the outer vessel must be made to fasten gas tight. The inner
vessel may or may not have a cover. By such an arrangement I can at any time
at a very small expenditure of time or trouble remove the inner vessel from the
outer and replace it by another inner vessel containing a fresh supply of fibrous or
woolly material and chromic acid, or any other material it may be deemed advisable
to conjoin with the contents of the vessel named to assist in the purification. Taps
or locks are affixed at inlet or outlet holes of the apparatus to regulate the admission
or emission of gas. A. bye pass pipe may also be employed so as to enable any one
to turn the gas direct into the ordinary burners without its going through the
apparatus thereby allowing the inner interior vessel to be removed without there
being any necessity to turn off the gas entirely at the meter.
For most purposes I prefer to use an apparatus formed in the shape of the
letter constructed out of a bent metal pipe at the apexes or upward end of the
apparatus, cylindrically formed interior vessels made of perforated zinc, wire
netting or other porous material are inserted these being charged with fibrous or
woolly material with or partly with cromic acid-these are closed in by any
suitable cover (preferaby corks inserted into the ends of the apparatus)-the gas
enters in its impregnated state near the top of one apex passing down through
fibrous or woolly material and chromic acid and other material if any be used, then
it circles round the bend of apparatus through the foot of another perforated

page_text: cylinder or vessel and after percolating the fibrous woolly or other material in this
second cylinder passes through the outlet tap into the ordinary gas pipe en route to
burners.
In witness whereof I the said Thomas Edward Jones have hereunto set my
hand this Twelfth day of August in the year of our Lord One thousand
eight hundred and eighty two.
THOMAS EDWARD JONES. (L.S.)