GB736550A - Improvements in electric warning apparatus - Google Patents
Improvements in electric warning apparatusInfo
- Publication number
- GB736550A GB736550A GB1091253A GB1091253A GB736550A GB 736550 A GB736550 A GB 736550A GB 1091253 A GB1091253 A GB 1091253A GB 1091253 A GB1091253 A GB 1091253A GB 736550 A GB736550 A GB 736550A
- Authority
- GB
- United Kingdom
- Prior art keywords
- circuit
- low
- tension
- switch
- indicator
- 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
- 238000010438 heat treatment Methods 0.000 abstract 2
- 230000001681 protective effect Effects 0.000 abstract 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K31/00—Housing birds
- A01K31/18—Chicken coops or houses for baby chicks; Brooders including auxiliary features, e.g. feeding, watering, demanuring, heating, ventilation
- A01K31/20—Heating arrangements ; Ventilation
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Birds (AREA)
- Zoology (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Alarm Systems (AREA)
Abstract
736,550. Protective arrangements. WHITE, G. W. March 3, 1954 [April 21, 1953], No. 10912/53. Class 38 (5). A warning apparatus comprises a warning indicator 2 and switch 6 in a batteryenergized circuit, a D.C. relay 7, a rectifier 8 in a low-tension power circuit the relay being supplied from the rectifier and holding the switch 6 open when it is energized, a low-tension power supply A and a manually operable testing switch 4 in the low-tension power circuit, the arrangement being such that if the power supply is cut the relay ceases to be energized and the indicator circuit is closed to operate the indicator 2. The low-tension power supply may be the secondary of a transformer having its primary in a mains lighting or heating circuit, so that the low tension is cut on failure of the mains or of the lighting or heating devices. Alternatively the low-tension circuit may include a thermostatic switch to give warning of temperature variations or door or window switches for burglar alarm purposes. The low-tension circuit may also include a lamp 5 and a voltage-dropping resistor 9. A manually-operated switch 3 may be included in the battery circuit, and the warning indicator may be a bell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1091253A GB736550A (en) | 1953-04-21 | 1953-04-21 | Improvements in electric warning apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1091253A GB736550A (en) | 1953-04-21 | 1953-04-21 | Improvements in electric warning apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB736550A true GB736550A (en) | 1955-09-07 |
Family
ID=9976581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1091253A Expired GB736550A (en) | 1953-04-21 | 1953-04-21 | Improvements in electric warning apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB736550A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2133192A (en) * | 1982-11-03 | 1984-07-18 | Alan Webb | Alarm unit |
| US20140299009A1 (en) * | 2013-04-04 | 2014-10-09 | Nike, Inc. | Cylinder With Recessed Portions for Holding Tubular Articles for Printing |
-
1953
- 1953-04-21 GB GB1091253A patent/GB736550A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2133192A (en) * | 1982-11-03 | 1984-07-18 | Alan Webb | Alarm unit |
| US20140299009A1 (en) * | 2013-04-04 | 2014-10-09 | Nike, Inc. | Cylinder With Recessed Portions for Holding Tubular Articles for Printing |
| US9321257B2 (en) * | 2013-04-04 | 2016-04-26 | Nike, Inc. | Cylinder with recessed portions for holding tubular articles for printing |
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