GB417043A - Cartridge-retaining devices for preventing the blowing-out of compressed carbon-dioxide gas, or other compressed gas or air charged cartridges, during firing or blastingin mines or quarries - Google Patents
Cartridge-retaining devices for preventing the blowing-out of compressed carbon-dioxide gas, or other compressed gas or air charged cartridges, during firing or blastingin mines or quarriesInfo
- Publication number
- GB417043A GB417043A GB3307532A GB3307532A GB417043A GB 417043 A GB417043 A GB 417043A GB 3307532 A GB3307532 A GB 3307532A GB 3307532 A GB3307532 A GB 3307532A GB 417043 A GB417043 A GB 417043A
- Authority
- GB
- United Kingdom
- Prior art keywords
- levers
- cartridge
- cartridges
- compressed
- blastingin
- 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
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
- F42D1/08—Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor
- F42D1/22—Methods for holding or positioning for blasting cartridges or tamping cartridges
Landscapes
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
417,043. Blasting-cartridges. WINSTANLEY, J. P., The Laurels, Congleton, Cheshire, and WHITFIELD, L., Clifton, Milehouse Lane, Wolstanton, Stoke-on-Trent. Nov. 20, 1933, No. 33075/32. [Class 9 (i).] Relates to devices used on or against carbon dioxide and like cartridges and comprising pivoted levers adapted to grip the shot-hole to prevent the cartridge from being blown out. According to the invention, heels B<2> are provided on relatively long levers B to abut fixed shoulders A<4> permitting only a relatively small outer swing to - the levers. As shown, two independent levers are pivoted on a single pin C. This pin is screwed to the body A and may be removed for stripping cleaning and replacement of worn or damaged parts. To facilitate the engagement of the levers with the shot-hole, the points B<3> of the levers are bent out and made to project beyond the periphery of the body A. The levers may be urged outwards by springs or by the compressed gas issuing through the usual ports A3, Fig. 1, which shows a body A with a screw-threaded part A' for attachment to the cartridge. In a modification, Fig. 5, the device is intended to be used as a stemming against the cartridge, the levers B are forced outwards by a plug E, E<1> during the stemming operation, and outward gaseous pressure further increases the anchoring effect of the levers.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3307532A GB417043A (en) | 1933-11-20 | 1933-11-20 | Cartridge-retaining devices for preventing the blowing-out of compressed carbon-dioxide gas, or other compressed gas or air charged cartridges, during firing or blastingin mines or quarries |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3307532A GB417043A (en) | 1933-11-20 | 1933-11-20 | Cartridge-retaining devices for preventing the blowing-out of compressed carbon-dioxide gas, or other compressed gas or air charged cartridges, during firing or blastingin mines or quarries |
Publications (1)
Publication Number | Publication Date |
---|---|
GB417043A true GB417043A (en) | 1934-09-27 |
Family
ID=10348211
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3307532A Expired GB417043A (en) | 1933-11-20 | 1933-11-20 | Cartridge-retaining devices for preventing the blowing-out of compressed carbon-dioxide gas, or other compressed gas or air charged cartridges, during firing or blastingin mines or quarries |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB417043A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112833723A (en) * | 2021-01-07 | 2021-05-25 | 中南大学 | Explosion anti-punching device and blast hole blocking method |
-
1933
- 1933-11-20 GB GB3307532A patent/GB417043A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112833723A (en) * | 2021-01-07 | 2021-05-25 | 中南大学 | Explosion anti-punching device and blast hole blocking method |
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