IMPROVEMENTS IN THE MANUFACTURE OF CHLORIDE OF LIME A
Year: 1882

page_text: LETTERS PATENT to Gerard Wenzeslaus von Nawrocki, Proprietor of the firm
of J. Brandt & G. W. v. Nawrocki, Patent Solicitor and Civil Engineer of
124 Leipzigerstrasse, Berlin, Germany for an Invention of IMPROVEMENTS
IN THE MANUFACTURE OF CHLORIDE OF LIME A communication from C.
Op), of Hruschau, Austria-Hungary. -
PROVISIONAL SPECIFICATION left by the said Gerard Wenzeslaus von
Nawrocki at the Office of the Commissioners of Patents on the 19th October
1882.
GERARD WENZESLAUS VON NAWROCKI, Proprietor of the firm of J. Brandt,
and G. W. v Nawrocki, Patent Solicitor and Civil Engineer of 124 Leipzigerstrasse,
Berlin, Germany, "IMPROVEMENTS IN THE MANUFACTURE OF CHLORIDE OF LIME,"
a communication from C. Opl, of Hruschau, Austria-Hungary,
Chloride of lime has hitherto in the greatest part been produced chiefly in
chambers by spreading on the floors or different stories or shelves of said chambers,
hydrate of lime to the extent of 2 to 5 centimeter in thickness, and then conducting
chlorine gas over it. Rotary apparatus has also been tried in which the absorption
of the chlorine gas by the hydrate of lime is accelerated by continual stirring.
The new process consists in accelerating the absorption of the chlorine gas by the
hydrate of lime by forcing the chlorine gas by means of pressure or suction to pass
through the dry slaked lime. This new process is carried out by spreading the
dry slaked lime in any quantity on the double floor of the chlorine-chamber and
forcing the chlorine gas to pass or suck through the lime by means of a pump or a
blast apparatus. To produce specially strong chloride of lime it is necessary to
purify the chlorine gas before the absorption, which is done by forcing the gas
through pulverised caustic lime. The chloride of lime chambers must also be kept
cool by water or air during the process.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Gerard Wenzeslaus von Nawrocki in the Great Seal Patent
Office on the 17th April 1883.
GERARD WENZESLAUS VON NAWROCKI, Proprietor of the firm of J. Brandt,
and G. W. v. Nawrocki, Patent Solicitor and Civil Engineer of 124 Leipzigerstrasse,
Berlin, Germany "IMPROVEMENTS IN THE MANUfacture of chloride of lime;”
a communication from C. Opl, of Hruschau, Austria-Hungary.
Chloride of lime has hitherto been produced chiefly in chambers by spreading
on the floors or different stories or shelves of said chambers, hydrate of lime to the
extent of 2 to 5 centimeters in thickness and then conducting chlorine gas over it.
Rotary apparatus has also been tried in which the absorption of the chlorine gas
by the hydrate of lime is accelerated by continual stirring. The new process
consists in accelerating the absorption of the chlorine gas by the hydrate of lime
by forcing the chlorine gas by means of pressure or suction to pass through the
dry slaked lime. This new process may be carried out by spreading any desired
quantity of the dry slaked limo on the double floor of the chlorine-chamber and
forcing or sucking the chlorine gas through the lime by means of a pump or a blast
apparatus. To produce specially strong chloride of lime it is necessary to purify
the chlorine gas before the absorption, which is done by forcing the gas through
pulverized caustic lime. The chloride of lime chambers must also be kept cool
CLAIM.
The manufacture or production of chloride of lime by causing chlorine g asto
pass through lime by suction or pressure, and the purification of chlorine gas by
causing it to pass through a layer of lime, substantially as described
In Witness whereof I, the said Gerard Wenzeslaus von Nawrocki have
hereunto set my hand and scal this fourteenth day of April A.D. 1883.