GB643872A - Improvements in or relating to ammonium nitrate-containing blasting cartridges - Google Patents
Improvements in or relating to ammonium nitrate-containing blasting cartridgesInfo
- Publication number
- GB643872A GB643872A GB19451/47A GB1945147A GB643872A GB 643872 A GB643872 A GB 643872A GB 19451/47 A GB19451/47 A GB 19451/47A GB 1945147 A GB1945147 A GB 1945147A GB 643872 A GB643872 A GB 643872A
- Authority
- GB
- United Kingdom
- Prior art keywords
- per cent
- composition
- blasting
- ammonium nitrate
- charge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B3/00—Blasting cartridges, i.e. case and explosive
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B45/00—Compositions or products which are defined by structure or arrangement of component of product
- C06B45/12—Compositions or products which are defined by structure or arrangement of component of product having contiguous layers or zones
Abstract
643,872. Blasting cartridges; explosives. ATLAS POWDER CO. July 21, 1947, No. 19451. Convention date, Dec. 26, 1944. [Classes 9 (i) and 9 (ii)] A blasting cartridge has a paper case 11 crimped over a sensitized explosive charge 13 of coarse-grained ammonium nitrate composition with a central core 15 of paper-wrapped gelatinized nitroglycerine dynamite, the composition of the charge and the proportions of core to charge being chosen to give maximum blasting strength without the evolution of red fumes. In an example the main explosive composition was nitroglycerine 5 per cent, coarse ammonium nitrate (95 per cent passing a No. 10 U.S. standard screen, not more than 40 per cent passing a No. 35 screen and not more than 5 per cent passing a No. 70 screen) 84 per cent, ground soft coal 2 per cent, ground sawdust 1.5 per cent, ground apricot stones 7 per cent and calcium carbonate 0.5 per cent, percentages being by weight. The rate of detonation for this composition was 4,200 f.s. when initiated by a No. 6 blasting cap. The composition was packed in cartridges of 5¢ in. diameter and 21¢ in. long with a 1“ in diameter core of 30 per cent ammonia gelatine dynamite having a detonation velocity of 7,900 f.s. An alternative composition is given.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US643872XA | 1944-12-26 | 1944-12-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB643872A true GB643872A (en) | 1950-09-27 |
Family
ID=22055605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB19451/47A Expired GB643872A (en) | 1944-12-26 | 1947-07-21 | Improvements in or relating to ammonium nitrate-containing blasting cartridges |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB643872A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3029012A3 (en) * | 2014-12-06 | 2016-08-24 | TDW Gesellschaft für verteidigungstechnische Wirksysteme mbH | Device for the controlled initiation of the deflagration of an explosive charge |
-
1947
- 1947-07-21 GB GB19451/47A patent/GB643872A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3029012A3 (en) * | 2014-12-06 | 2016-08-24 | TDW Gesellschaft für verteidigungstechnische Wirksysteme mbH | Device for the controlled initiation of the deflagration of an explosive charge |
| US9829297B2 (en) | 2014-12-06 | 2017-11-28 | TDW Gesellschaft fuer verteidgungstechnische Wirksysteme mbH | Device for the controlled initiation of the deflagration of an explosive charge |
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