GB869665A - Apparatus for firing explosive charges - Google Patents
Apparatus for firing explosive chargesInfo
- Publication number
- GB869665A GB869665A GB10669/58A GB1066958A GB869665A GB 869665 A GB869665 A GB 869665A GB 10669/58 A GB10669/58 A GB 10669/58A GB 1066958 A GB1066958 A GB 1066958A GB 869665 A GB869665 A GB 869665A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gear
- wheel
- mainspring
- shaft
- unwinding
- 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
- 239000002360 explosive Substances 0.000 title 1
- 238000010304 firing Methods 0.000 title 1
- 238000004804 winding Methods 0.000 abstract 4
- 210000000078 claw Anatomy 0.000 abstract 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
- F42D1/04—Arrangements for ignition
- F42D1/045—Arrangements for electric ignition
-
- G—PHYSICS
- G04—HOROLOGY
- G04F—TIME-INTERVAL MEASURING
- G04F3/00—Apparatus which can be set and started to measure-off predetermined or adjustably-fixed time intervals with driving mechanisms, e.g. dosimeters with clockwork
- G04F3/02—Apparatus which can be set and started to measure-off predetermined or adjustably-fixed time intervals with driving mechanisms, e.g. dosimeters with clockwork with mechanical driving mechanisms
- G04F3/027—Apparatus which can be set and started to measure-off predetermined or adjustably-fixed time intervals with driving mechanisms, e.g. dosimeters with clockwork with mechanical driving mechanisms using electrical contacts, e.g. for actuating electro-acoustic device
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Air Bags (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
869,665. Driving generators. WASAGCHEMIE A.G. April 2, 1958 [April 4, 1957], No. 10669/58. Class 35. An electric detonator comprising a generator driven by a mainspring through a gear-wheel is provided with means to prevent rotation of the gear-wheel during winding of the mainspring and to ensure that the gear-wheel is free to rotate during unwinding of the mainspring. The mainspring 7 is wound by a shaft 5 which it counter-rotates when it unwinds. A gearwheel 14 is coupled to the shaft by a pawl 13 and ratchet 12 so that, during winding the rotation of the shaft will not be transmitted to the gear-wheel, but during unwinding it will. An arresting device 15 meshes with the teeth of the gear-wheel during winding to positively prevent rotation thereof, the arresting device being urged into this position by a leaf-spring 52; subsequently, to permit unwinding, it is moved away to position 15<SP>1</SP> to free the gearwheel by manual rotation of shaft 19 carrying a claw 18. A cam 46 blocks the device 15 in each of its positions, this cam being momentarily moved aside at the beginning and completion of the winding and unwinding cycles by an arrangement of gearing and cams (Fig. 3, not shown). The gear-wheel 14 drives the armature 22 of the generator which is provided with contact segments 36 carried on a ring gear 35 and so disposed that they contact bolts 40 connected to terminals 4 and fire the detonator when the generated current reaches its maximum value.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE869665X | 1957-04-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB869665A true GB869665A (en) | 1961-06-07 |
Family
ID=6803045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB10669/58A Expired GB869665A (en) | 1957-04-04 | 1958-04-02 | Apparatus for firing explosive charges |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2924721A (en) |
| FR (1) | FR1205299A (en) |
| GB (1) | GB869665A (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1072511A (en) * | 1913-02-04 | 1913-09-09 | Konrad Schaffler Rekte Gloessl | Dynamo-electric apparatus for firing mines. |
| US1363585A (en) * | 1919-08-14 | 1920-12-28 | Atlas Powder Co | Blasting-machine |
| US1479152A (en) * | 1921-03-08 | 1924-01-01 | California Cap Company | Dynamo-electric machine |
| FR686180A (en) * | 1928-08-12 | 1930-07-23 | Kienzle Uhrenfabriken Ag | Synchronous motor with automatic start for controlling pendulums and the like |
| DE706927C (en) * | 1936-06-03 | 1941-06-09 | Anonima Fax Soc | Electric igniter for mines, hand grenades and projectiles |
| US2524005A (en) * | 1948-05-27 | 1950-09-26 | Specialties Inc | Spring powered electric generator |
-
1958
- 1958-04-02 GB GB10669/58A patent/GB869665A/en not_active Expired
- 1958-04-03 FR FR1205299D patent/FR1205299A/en not_active Expired
- 1958-04-04 US US726577A patent/US2924721A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FR1205299A (en) | 1960-02-02 |
| US2924721A (en) | 1960-02-09 |
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