IMPROVEMENTS IN THE MEANS OF AND APPARATUS FOR PREVENTING GUNPOWDER AND OTHER COMBUSTIBLES Ex- PLODING DURING STORAGE OR TRANSMISSION."
Year: 1876

page_text: PROVISIONAL SPECIFICATION left by Herrmann Albert Otto Emil Grünbaum
at the Office of the Commissioners of Patents on the 11th October 1876.
HERRMANN ALBERT OTTO EMIL GRÜNBAUM, Dentist, of No. 10, Upper William
Street, Stratford, in the County of Essex. "IMPROVEMENTS IN THE MEANS OF
AND APPARATUS FOR PREVENTING GUNPOWDER AND OTHER COMBUSTIBLES Ex-
PLODING DURING STORAGE OR TRANSMISSION."
My said Invention consists in the construction of receptacles manufactured of a
variety of materials, iron or any other metal, stone, earthenware, leather, gutta
percha, india rubber, or wood, the choice of material depending upon the extent of
protection according to the condition of exposure to fire or shot, and each receptaclo
consists of one or more cases surrounded by a fire-proof composition, such as water
glass and calcinated magnesia, pumice, and quick lime, or cement, or a loose powder,
such as pumice, magnesia, or asbestos, as an isolator, according to the demand as
aforesaid, either of which also fully insures the contents against the injurious effects
of the atmosphere, electricity, or damp, and which are proof against any possibility
of creating steam within if exposed to great heat.
The accompanying Drawing represents the apparatus according to my Invention.
The apparatus Fig. I.-A, a powder chamber; B, fire-proof composition or loose
powder where necessary; C, top lid with holes; and i, patrix; B, b, inner com-
position lid with a matrix for greased washer; b, b, entrance to powder chamber,
showing patrix for the washer; c, inner lining of powder chamber; d, outer lining; e,
screw bolts; f, cavity for middle composition lid; h matrix, if immersion under water
be demanded.
Fig. II. g, middle composition lid.
Fig. III. B, top of powder chamber; B, b, inner composition lid; a, matrix; b,
patrix; g, middle composition lid.
The apparatus can be made in size suitable for any purpose, i. e., from powder
magazine storage to the smallest, to be worn about the body. Its construction is
both simple and sure, and can be made so as to resist the fiercest fire without
its contents becoming ignited, contaminated, or reduced in their respective value as
explosives..
For the storage of large quantities of powder or other explosives in magazines,
an outer case, larger in size, but in construction similar to the outer lining d, with
top lid C in Fig. I. is supplied, into which the whole apparatus is immersed under

page_text: water, resting at each of its six sides against perforated brackets, and which outer
case is supplied with an inner lining to admit the aforesaid compositions or powders,
and has safety valves for the outlet of steam when exposed to great heat, which
valves, if supplied with a whistle, give the signal as to the length of time at which
the utmost safety is prevailing, and will prove thus a double security against
injury; there being also an outlet for the water which can be quickly drawn off
when required in order to extract some of the powder for use.
On the same principle entire powder magazines, on land as well as on board ship,
can be constructed with a constant flow of water surrounding all the stored powder
apparatuses; also fire-proof rooms in bank and other buildings, with or without
immersion under water; also the carriages of or belonging to an artillery train.