US789252A - Blasting composition. - Google Patents

Description

states I Patented may 9, 1905.

Pat ent QFF CE;

' MAX BIELEFELDT, or BERLIN, GERMAN Y ems-"rears oorasosarioa,

seaczrxeamon forming part of Letters Patent a. 739,252, dated ma 9, 1905.

Application filed January 8,1902. Sorisltio. 83,607. i

flo-u-llwhom it may concern' cent." ot' wood-flour, which additions, however, consulerably reduce the disruptive power of the dynamite. In order to avoid this (lefcct, l substitute for about half the quantity of cereal tiour andcellulose-flour hydrocarbons which have a high molecular weight and are rich in carbon, such as liquid paraffin, eeresin, naphthalene, and anthracene. Dynamites containing approximately from thirtylive to forty-live per cent, ot nitroglycerin thereby acquire a considerably higher disruptive power in comparison with the products containing the full quantity of the said Hours. The power of these explosives may he further enhanced by adding a suitable, quantity of ammonium nitrate, and a small part of the latter may be replaced by potassium or sodium nitrate.

An eminently safe and powerful dynamite may he obtained by mixing nitroglycerin willrliydrocurbons of high molecular weight. Hour of cereals and cellulose, and inorganic nitrates, preferably ammonium nitrate, in such proportions that the finished explosive composition containsaboutthirty-iive to fortytive per cent. of nitro eonniounds andthat the quantity of hydrocarbons of high molecular weight is from one-fourth to one-half that of the organic nitro compound and is approximately equal to the quantity of cereal andceliulose flour.

The following composition has b f d,

to possess great disruptive power without being liable to cause explosions of fire -dam'p:-

t'orty parts of nitroglycerin, two parts of col,-

lodion-cott0n,ei,9;ht partsof paraflinroil, (paratiinum liquidum,) four parts of naphthalene,

twelve parts of rye-tiour, two parts of wood:-

tiour, twenty'seven parts of ammonium 'ni-' trate; (ammoniasaltpeter,) five parts of po-- tassium nitrate, (potash saltpeter.)

The principal object of the collodion-cotton in the above example istogelatinize the blasting composition. If this efie-ct'is not desired,

the collodion-cotton may be omitted.

What I claim is 1. A blasting composition containing nitro" glycerin, a hydrocarbon of high molecular.

weight and rich in carbon, cereal flopr, cellulose-flour and aninorga-nic nitrate, the quantity of the hydrocarbon being approximately from one-fourth to one-half the quantity of the organic nitro compound and approxi-' mately equ al to the quantity of flour of cereals and cellulose, substantially as described.

2; A blasting composition com posed of forty parts of nitroglycerin, two parts of collodion-' cotton, eight parts of paratlin-oil, four parts of naphthalene, twelve parts of rye-flour, two parts of wood-flour, twenty-seven parts of ammoniiim nitrate, tive parts of potassium mtratc, substantially as described.

in testimony whereof I have hereunto set my hand in presence of two subscribing wit- HOSSGS.

' MAX 'BIELEFELDT.

\Nitnesses:

Lnnwio MOELLER, it. KREFI'.