A Method and Means for Preventing or Localizing the Explosion of Inflammatory Gas or Dust in Coal Mines or elsewhere.
Year: 1894

page_text: Date of Application, 18th Aug., 1894
Complete Specification Left, 17th June, 1895-Accepted, 20th July, 1895
PROVISIONAL SPECIFICATION.
A Method and Means for Preventing or Localizing the Explosion
of Inflammatory Gas or Dust in Coal Mines or elsewhere.
:-
I CONRAD GAUTSCH of 12 Ickstattstrasse, Munich in the Empire of Germany,
Manufacturer do hereby declare the nature of this invention to be as follows:-
The object of this invention is to prevent explosions of inflammatory gases or
mixtures of gases with air or other gases, of air with fine coal dust, or of similar
explosive mixtures, in confined places such as the workings of coal mines or other
mines where explosive gases may be developed, by preventing the passage of any
flame or electric discharge resulting from thunderstorms or otherwise thereto from
the shaft of the mine or other part of the workings, and the invention is in a similar
manner and by the same action adapted to localize any explosion that may occur
from any cause originating in the explosive atmosphere so as to prevent. such
explosion or flame therefrom passing to other parts of the mine.
For these purposes the invention consists in providing an atmospheric screen or
series of screens of such nature that the gases or matters of which they are
composed offer no impediment to the passage of solid objects and are not deleterious
to human beings or animals but nevertheless act to arrest or quench flame. These
screens are constituted by diffusing in the air at the desired place or places in the
workings shafts or other parts of the mine or other place a material adapted to
arrest or quench flame such for instance as powdered bicarbonate of soda. I do
not confine myself to the use of this material nor to any particular means for
diffusing it in the atmosphere.
Dated this 18th day of August 1901
R. HADDAN,
Agent to Applicant.
A Method and Means for Preventing or Localizing the Explosion
of Inflammatory Gas or Dust in Coal Mines or elsewhere.
I, CONRAD GAUTSCH of 12 Ickstattstrasse Munich, in the Empire of Germany,
Manufacturer, do hereby declare the nature of this invention and in what manner
the same is to be performed to be particularly described and ascertained in and by
the following statement:-
The object of this invention is to prevent explosions of inflammatory gases or
mixtures of gases with air or other gases, of air with fine coal dust or of similar
explosive mixtures in confined places such as the workings of coal mines or other
mines where explosive gases may be developed, by preventing the passage of any
flame or electric discharge resulting from thunderstorms or otherwise thereto from
the shaft of the mine or other part of the workings, and the invention is in a similar
manner and by the same action adapted to localize any explosive that may occur
from any cause originating in the explosive atmosphere so as to prevent such
explosion or flame therefrom passing to other parts of the mine.
[Price 8d1

page_text: For these purposes the invention consists in providing an atmospheric screen or
series of screens of such nature that the gases or matters of which they are
composed offer no impediment to the passage of solid objects and are not deleterious
to human beings or animals but nevertheless act to arrest or quench flame. These
screens are constituted by diffusing in the air at the desired place or places in the
workings, shafts, or other parts of the mine or other place, a material adapted to
arrest or quench flame such for instance as powdered bicarbonate of soda to which
may be added boracic acid. I do not confine myself to the use of this particular
material or materials, nor to any particular means for diffusing it into the atmo-
sphere in the form of fine dust; any suitable spraying or atumizing device will
answer the purpose.
Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed, I declare that what I claim is :—
1. A method or means for preventing or locating the explosion of inflammatory
gases in coal or other mines or places, consisting in forming between the place of
operation or possible location of such gases and other respective places or regions
an atmospheric screen made uninflammable by the diffusion therein of suitable flame
arresting powdered substances.
Doted this 17th day of June 1905
R. HADDAN,
Of the Firm of Herbert Haddan & Co.,
18 Buckingham Street, Strand, London, W.C., Agent to Applicant.