GB190908759A - Improvements in Fire Alarms. - Google Patents
Improvements in Fire Alarms.Info
- Publication number
- GB190908759A GB190908759A GB190908759DA GB190908759A GB 190908759 A GB190908759 A GB 190908759A GB 190908759D A GB190908759D A GB 190908759DA GB 190908759 A GB190908759 A GB 190908759A
- Authority
- GB
- United Kingdom
- Prior art keywords
- drum
- contact
- section
- tube
- fire alarms
- 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 - Lifetime
Links
Landscapes
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
8759. Baptifaut, A., and Sydenham, H. J. April 10, 1908, [Convention date]. Void. [Published under Section 91 of the Act.] Alarms operated by expansion and evaporation of liquids.-A curved copper tube A of oval cross-section is filled with a volatile liquid, such as alcohol, ether, or petroleum, and is fixed at one end A' to the base of the apparatus, its other end being connected by a chain C to a drum B, which is rotated against the action of a spring K when the tube A is acted upon by heat. A needle D, which is clamped by a screw to the spindle F of the drum B and is counter-weighted at I, is thus moved into contact with an adjustable contact-stop G, thereby closing an electric circuit comprising wires attached to terminals M, N.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR190908759X | 1908-04-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB190908759A true GB190908759A (en) |
Family
ID=32407142
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB190908759D Expired - Lifetime GB190908759A (en) | 1908-04-10 | 1909-04-13 | Improvements in Fire Alarms. |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB190908759A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2698890A (en) * | 1951-07-09 | 1955-01-04 | Edward H Hughes | Automatic fire alarm |
US3150526A (en) * | 1959-11-04 | 1964-09-29 | Tinius Olsen Testing Mach Co | Linear response measuring instrument |
US3707089A (en) * | 1970-12-03 | 1972-12-26 | Giuseppe Stradella | Constant ratio calibration and transmission device for movements of bourdon type pressure gages and the like |
-
1909
- 1909-04-13 GB GB190908759D patent/GB190908759A/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2698890A (en) * | 1951-07-09 | 1955-01-04 | Edward H Hughes | Automatic fire alarm |
US3150526A (en) * | 1959-11-04 | 1964-09-29 | Tinius Olsen Testing Mach Co | Linear response measuring instrument |
US3707089A (en) * | 1970-12-03 | 1972-12-26 | Giuseppe Stradella | Constant ratio calibration and transmission device for movements of bourdon type pressure gages and the like |
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