GB857178A - Improvements in seismic prospecting devices - Google Patents
Improvements in seismic prospecting devicesInfo
- Publication number
- GB857178A GB857178A GB21893/59A GB2189359A GB857178A GB 857178 A GB857178 A GB 857178A GB 21893/59 A GB21893/59 A GB 21893/59A GB 2189359 A GB2189359 A GB 2189359A GB 857178 A GB857178 A GB 857178A
- Authority
- GB
- United Kingdom
- Prior art keywords
- delay
- explosive
- charge
- june
- cord
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
- C08G59/42—Polycarboxylic acids; Anhydrides, halides or low molecular weight esters thereof
- C08G59/4223—Polycarboxylic acids; Anhydrides, halides or low molecular weight esters thereof aromatic
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Epoxy Resins (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
857,178. Blasting devices. DU PONT DE NEMOURS & CO., E. I. June 25,1959 [June 27, 1958]. No. 21893/59. Class 9(1). A delay element 2, for propagating explosion, comprises a rigid tubular element 5 having at least two perforations 6 at different positions along its length, to prevent collapse as the result of unequal internal and external pressures, one perforation being near the upper end thereof, and also a delay producing unit 7, and connecting means at each end for an explosive charge, or another such delay element. The delay unit 7 comprises a closely folded length of low energy connecting cord, each end of which is capped by a metal shell 8 containing an initiating explosive, and is retained on the end of the cord by a peripheral crimp 9. The shell 8 is held adjacent an initiating charge (not shown) in the internally threaded end B, and a priming charge 11 of a pressed high-velocity detonating explosive in the externally threaded end B<SP>1</SP>. Specification 748,816 is referred to.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US857178XA | 1958-06-27 | 1958-06-27 | |
| US81800559A | 1959-06-04 | 1959-06-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB857178A true GB857178A (en) | 1960-12-29 |
Family
ID=26773013
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB21893/59A Expired GB857178A (en) | 1958-06-27 | 1959-06-25 | Improvements in seismic prospecting devices |
| GB19601/60A Expired GB957178A (en) | 1958-06-27 | 1960-06-02 | Epoxy resins |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB19601/60A Expired GB957178A (en) | 1958-06-27 | 1960-06-02 | Epoxy resins |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE591557A (en) |
| DE (1) | DE1112831B (en) |
| GB (2) | GB857178A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110047141A (en) * | 2019-03-02 | 2019-07-23 | 长沙迪迈数码科技股份有限公司 | Surface mine current mining threedimensional model update method |
-
0
- BE BE591557D patent/BE591557A/xx unknown
-
1959
- 1959-06-25 GB GB21893/59A patent/GB857178A/en not_active Expired
-
1960
- 1960-06-02 GB GB19601/60A patent/GB957178A/en not_active Expired
- 1960-06-03 DE DEST16561A patent/DE1112831B/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110047141A (en) * | 2019-03-02 | 2019-07-23 | 长沙迪迈数码科技股份有限公司 | Surface mine current mining threedimensional model update method |
Also Published As
| Publication number | Publication date |
|---|---|
| BE591557A (en) | |
| DE1112831B (en) | 1961-08-17 |
| GB957178A (en) | 1964-05-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1431600A (en) | Method of blasting and a detenator firing device therefor | |
| FR1221093A (en) | Explosive cartridge generating propellant gas | |
| SE8306352D0 (en) | DEVICE FOR CREATING AN EXPLOSIVELY EXPANDED ROR-RAVER PLATE CONNECTION | |
| GB865756A (en) | Improvements in or relating to initiating devices | |
| BE596303A (en) | Ignition device using a piezoelectric ignition generator | |
| GB857178A (en) | Improvements in seismic prospecting devices | |
| GB782305A (en) | Delay blasting device | |
| GB984594A (en) | A nuclear reactor for use underground in boreholes or shafts | |
| GB1024256A (en) | Detonation interrupter | |
| GB815533A (en) | Improvements in or relating to connectors for explosive cord | |
| Bauer et al. | Detonation study of gaseous mixtures at initial pressure reaching 10 MPa | |
| CA562263A (en) | Multiple unit oil and gas well explosive cartridge | |
| GB868279A (en) | Improvements in seismic prospecting devices | |
| BE588747A (en) | Current pulse generator, in particular for igniting explosive charges and propellant charges. | |
| SU128348A1 (en) | Electrical ignition tube for electric ignition blasting explosive charges | |
| GB992619A (en) | Improvements in and relating to acoustic transducers for the priming of explosives | |
| BUSCO | Study of the implosion phenomenon, showing the transformation of a convex detonation wave into a concave wave, using optics of explosives laws | |
| SU118139A1 (en) | Charge for air explosions during seismic exploration | |
| GB1367013A (en) | Hollow-charge explosive device adapted for underwater operation | |
| GB693810A (en) | Improvements relating to field mines | |
| GB962274A (en) | Improvements in fireworks and similar pyrotechnic devices | |
| BE596394A (en) | Electric ignition device for explosive charges. | |
| FR1251730A (en) | Current pulse generator, in particular for igniting explosive charges and propellant charges | |
| GB659413A (en) | Improvements relating to detonating assemblies for blasting and like purposes | |
| FR2205188A5 (en) | Priming device for bulk explosives - fired by a detonator contd in a (semi) rigid plastic cylinder |