GB543629A - Method and means for remote detection of bombs and fire - Google Patents
Method and means for remote detection of bombs and fireInfo
- Publication number
- GB543629A GB543629A GB1599440A GB1599440A GB543629A GB 543629 A GB543629 A GB 543629A GB 1599440 A GB1599440 A GB 1599440A GB 1599440 A GB1599440 A GB 1599440A GB 543629 A GB543629 A GB 543629A
- Authority
- GB
- United Kingdom
- Prior art keywords
- wire
- fire
- bombs
- fine
- breakage
- 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
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/06—Electric actuation of the alarm, e.g. using a thermally-operated switch
Landscapes
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fire-Detection Mechanisms (AREA)
- Insulated Conductors (AREA)
Abstract
543,629. Automatic alarms for burglars, fire, and the like. JONES, K., WARNER-, and PHILCO RADIO & TELEVISION CORPORATION OF GREAT BRITAIN, Ltd. Nov. 1, 1940, No. 15994. [Class 118 (i)] [Also in Group XXI] An electric conductor which is adapted to be stretched across a space and the breakage of which causes a signal or alarm to be operated, the breakage being caused by an agency such as bombs or debris, entry of a trespasser, or fusing due to excessive heat such as from an outbreak of fire comprises a fine frangible wire having associated therewith an inextensible yarn filament so that when the conductor is stretched or subjected to tension the fine wire is free from tensile strain. As shown the yarn thread 1 has the fine wire 2 helically wound thereon. The wire 2 may be of copper or of lead alloy and may, together with the yarn thread coated with shellac, rubber &c.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1599440A GB543629A (en) | 1940-11-01 | 1940-11-01 | Method and means for remote detection of bombs and fire |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1599440A GB543629A (en) | 1940-11-01 | 1940-11-01 | Method and means for remote detection of bombs and fire |
Publications (1)
Publication Number | Publication Date |
---|---|
GB543629A true GB543629A (en) | 1942-03-05 |
Family
ID=10069280
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1599440A Expired GB543629A (en) | 1940-11-01 | 1940-11-01 | Method and means for remote detection of bombs and fire |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB543629A (en) |
-
1940
- 1940-11-01 GB GB1599440A patent/GB543629A/en not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2832915A (en) | Alarm system responsive to sonic vibrations | |
GB543629A (en) | Method and means for remote detection of bombs and fire | |
US2236891A (en) | Fire alarm system | |
US1081884A (en) | Burglar-alarm. | |
US2369966A (en) | Smoke detector | |
US2617868A (en) | Electrical burglar alarm system | |
US3046536A (en) | Automatic fire alarm energizing means | |
EP0146272A3 (en) | Coaxial cable | |
US2870434A (en) | Detection and signaling apparatus | |
US3171116A (en) | Combined door signal and mail indicator system | |
US2202390A (en) | Television receiver | |
US1990659A (en) | Temperature responsive system and device | |
US2659789A (en) | Device for detecting blown fuses | |
US2198410A (en) | Fire alarm | |
US1814255A (en) | Floor trap for burglar alarms | |
US2059510A (en) | Automatic alarm system | |
GB226206A (en) | Improved burglary alarm device which may also serve in certain conditions as a fire alarm | |
SU1661815A1 (en) | Device for site security protection | |
US2509703A (en) | Protecting circuit | |
GB149467A (en) | Improvements in electro magnets or relays | |
GB555268A (en) | Improvements in and relating to heat-responsive elements | |
GB190926623A (en) | Automatic Fire and Burglar Alarm. | |
GB378560A (en) | Improvements in fire alarm systems | |
GB497200A (en) | Improvements in alarm systems | |
JPS55115781A (en) | Monitor unit for crime proof |