AN IMPROVED APPARATUS FOR PURIFYING AND INCREASING THE ILLUMINATING POWER OF COAL GAS
Year: 1882

page_text: LETTERS PATENT to John Fredrick Gustave Kromschröder of N° 5 Great
George Street Westminster Engineer for an Invention of AN IMPROVED
APPARATUS FOR PURIFYING AND INCREASING THE ILLUMINATING POWER OF
COAL GAS
PROVISIONAL SPECIFICATION left by the said John Fredrick Gustave
Kromschröder at the Office of the Commissioners of Patents on the
13th December 1882.
JOHN FREDRICK GUSTAVE KROMSCHRÖDER of N° 5 Great George Street
Westminster, Engineer AN IMPROVED APPARATUS FOR PURIFYING AND INCREASING
THE ILLUMINATING POWER OF COAL GAS.
My invention consists in an improved apparatus for purifying and increasing the
illuminating power of Coal Gas by passing it through hydro-carbon liquid.
The apparatus is a metal vessel of suitable size preferably made of tinned iron-
The interior of this vessel is horizontally divided into two parts by means of a
metal plate. The lower part serves as the purifying Chamber for the Gas and has
an inlet and an outlet pipe connected with it at either side. The upper part forms
the reservoir for storing the surplus hydro-carbon liquid.
The hydro-carbon liquid is supplied from the reservoir to the purifying chamber
through an aperture in the dividing plate.
In order to regulate the necessary supply of hydro-carbon liquid, I place a
floating regulator or valve in the purifying chamber fitted to a spindle passing
through the aperture in the dividing plate and kept in position by guides.
When there is a sufficient quantity of hydro-carbon liquid in the purifying
chamber the floating regulator or valve presses against the underside of the
dividing plate and closes the aperture preventing the flow of the hydro-carbon
liquid from the reservoir. As the hydro-carbon liquid evaporates in the purifying

page_text: chamber, the floating regulator descends and thus allows fresh liquid to flow into
the chamber until the necessary quantity is supplied.
The purifying chamber is fitted with a series of plates passing from side to side,.
a space being left alternately between one end of each plate and the side of the
vessel so as to allow a zig-zag passage for the gas. The intervals between these
plates are filled with horse-hair, cocoa-nut fibre or some other similar fibrous
material through which the gas can pass
The gas entering the chamber by the inlet pipe passes round the ends of the
plates through the fibrous material is discharged at the outlet pipe.
The vacuum tube for enabling the hydro-carbon liquid to flow from the reservoir
to the purifying chamber is connected directly with either the inlet or outlet pipe.

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SPECIFICATION. in pursuance of the conditions of the Letters 'Patent filed by
the said John Fredrick Gustave Kromschröder in the Great Seal Patent
Office on the 13th June 1883.
JOHN FREDRICK GUSTAV KROMSCHRÖDER of No. 5 Great George Street
Westminster "AN IMPROVED APPARATUS FOR PURIFYING AND INCREASING THE
ILLUMINATING POWER OF COAL GÄS
"
My Invention consists in an improved apparatus for purifying and increasing the
illuminating power of Coal Gas by passing it through an absorbent material
saturated with hydro-carbon liquid.
The apparatus is a metal vessel of suitable size preferably made of tinned iron.
The interior of this vessel is horizontally divided into two parts by means of a
metal plate. The lower part serves as the purifying chamber for the gas and has
an inlet and an outlet pipe connected with it at either side. The upper part forms
the reservoir for storing the surplus hydro-carbon liquid.
The hydro-carbon liquid is supplied from the reservoir to the purifying chamber
through a tapered aperture in the dividing plate. This aperture is covered with a
dome shaped fine wire gauze to prevent the passing of foreign substances.
In order to regulate the necessary supply of hydro-carbon liquid I place a
floating regulator or valve in the purifying chamber fitted to a spindle passing
through the aperture in the dividing plate and kept in position by guides.
When there is a sufficient quantity of hydro-carbon liquid in the purifying
chamber the floating regulator or valve presses against the under side of the tapered
aperture in the dividing plate and closes the aperture preventing the flow of the
hydro-carbon liquid from the reservoir.
As the hydro-carbon liquid evaporates in the purifying chamber the floating
regulator descends and thus allows fresh liquid to flow into the chamber until the
necessary quantity is supplied.
The purifying chamber is fitted with a series of plates passing from side to side
a space.being left alternately between one end of each plate and the side of the
chamber so as to allow a zig-zag passage for the gas. The intervals between these
plates are filled with horse hair, cocoa nut fibre, or other similar fibrous material
through which the gas can pass.
The gas entering the purifying chamber by the inlet pipe passes round the ends
of the plates through the fibrous material is discharged at the outlet pipe.
The vacuum tube for enabling the hydro-carbon liquid to flow from the reservoir
to the purifying chamber is connected directly with either the inlet or outlet pipe.
In the drawing accompanying this Specification Figure I is a sectional elevation
of my improved apparatus Figure II is a sectional plan of the purifying chamber→
A A A A is the case of the apparatus-B (Figure 1) is the reservoir for the surplus
hydro-carbon fluid-C is the purifying chamber-D is the inlet and E the outlet
pipe for the gas. The hydro-carbon liquid is supplied to the reservoir B (Figure I)
by the aperture F (Figure 1) which is plugged as shown-G (Figure I) is the
dividing plate which separates the reservoir from the purifying chamber-H is the
tapered aperture through which the hydro-carbon liquid flows from the reservoir
to the purifying chamber-I (Figure I) is the floating valve or regulator fitted to
a spindle as shown and kept in its place by the guides i i and i. i (Figure I)—
KK are the plates in the purifying, chambers passing from side to side as above
described the interstices being filled with the fibrous material as above stated-
L (Figure I) is the vacuum tube to enable the hydro-carbon liquid to flow from
the reservoir.

page_text: Having now described the nature of my Invention and in what manner the same
is carried out, I do not claim as new any of the separate parts of which my
apparatus is composed, but what I claim is the combination of the several parts in
the construction of an apparatus for purifying and increasing the illuminating
power of Coal Gas substantially in the manner hereinbefore described.
In witness whereof I the said John Fredrick Gustav Kromschröder have
hereunto set my hand and seal this Twelfth day of June One thousand
eight hundred and eighty three.
JOHN. FREDRICK GUSTAV KROMSCHRÖDER (L.S.)