Year: 1888

page_text: Date of Application, 15th Dec., 1388
Complete Specification Left, 2nd Jan., 1339
Complete Specification Accepted, 6th Apr., 1859
1, JEAN WILHELM SKOGLUND of No. 13 Floragatan Stockholm in the Kingdom of
Sweden, Engineer, do hereby declare the nature of this invention to be as follows:-—
In experimenting with organic nitro compounds for use in fire-arms various
difficulties are met with, the chief among which are their too great explosive power,
the development of nitrogeneous gases at the time of explosion, which has a very
injurious effect on the firearm and further their liability to decompose when stored
and in consequence thereof to explode.
My invention relates to the manufacture of explosive compounds (which will not
explode with too great violence and will not be liable to decompose) from nitro-
cellulose or trinitrophenol (picric acid) or compounds in which the said nitrocom-
bination enters, by mixing them with carbonates, oxalates or carbaminatos of
ammonium or of other volatile radical bases.
In consequence of the heat required for the disassociation and volatilization of this
ingredient the speed of explosion and the explosive power are reduced, so that a
quantity of explosive compound many times as great as that of the explosive alone can
be employed before the same degree of explosive power is attained if a suitable
quantity (ordinarily 10 to 20 %) has been added. The quantities of the nitro
compound and the material added in order to reduce the explosive power are united,
are thus 10 to 20 parts by weight of the last mentioned for 100 parts by weight of the
first named. By this means it is possible to use large enough charges to attain the
effect desired, without danger of damaging the fire-arm. By reason of the basic
qualities of the ingredients which I use and because of the ineffectiveness of the
carbonic, oxalic and carbamic acid the decomposition is prevented, so that the explosive
compound may be stored for a longer time without danger. As the explosion does
not take place so quickly the report is more prolonged, similar to other slowly
burning compounds, as for instance common gun-powder although it evidently
becomes more feeble which is a great advantage in firing because comparatively little
smoke is produced.

page_text: For adding the salts which I use to the nitro compound or to the composition in
which it occurs I proceed in the following manner nainely, either so that the volatile
material, which is employed in ordor to reduce the explosivo-power together with the
nitro composition is at first finely divided and intimately mixed and then pressed in
order to gain consistency, or the nitro compound is soaked with a concentrated 5
solution of the said salts after which it is dried.
Dated this 15th dow of December 18RR

page_text: nitro composition is at first finely divided and intimately mixed and then pressed in
order to gain consistency, or the nitro-compound is soaked with a concentrated
solution of the said salts after which it is dried.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed I declare that what
I claim is:
An explosive compound which will not explode with too great violence consisting of
nitrocellulose (nitrate of cellulose) or trinitrophenol (picric acid) or in combinations
or compositions in which one or both these materials enter, together with compositions
of the radical of carbonic, oxalic or carbamic acid with ammonium or another volatile 1
radical base or hydroxyl with or without amfogenic oxygen.