GB512157A - Improved alarum gun - Google Patents
Improved alarum gunInfo
- Publication number
- GB512157A GB512157A GB871038A GB871038A GB512157A GB 512157 A GB512157 A GB 512157A GB 871038 A GB871038 A GB 871038A GB 871038 A GB871038 A GB 871038A GB 512157 A GB512157 A GB 512157A
- Authority
- GB
- United Kingdom
- Prior art keywords
- weights
- hand
- alarum
- gun
- improved
- 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
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M29/00—Scaring or repelling devices, e.g. bird-scaring apparatus
- A01M29/16—Scaring or repelling devices, e.g. bird-scaring apparatus using sound waves
- A01M29/20—Scaring or repelling devices, e.g. bird-scaring apparatus using sound waves with generation of periodically explosive reports
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Birds (AREA)
- Engineering & Computer Science (AREA)
- Insects & Arthropods (AREA)
- Pest Control & Pesticides (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Air Bags (AREA)
Abstract
512,157. Detonator apparatus. FRASER, J. H., and HEWSON, L. W. Nov. 22, 1938, No. 8710. [Class 118 (ii)] In a bird-scaring apparatus of the type wherein a hand is rotated slowly to release, at intervals, weights 7 held in a disc 3 by pawls 6 which pass through slots (not shown), the weights falling upon strikers to fire blank cartridges, the hand or hands 15 that cause the weights to fall remain stationary until propelled forward by an auxiliary hand 17 driven by a clockwork motor.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB871038A GB512157A (en) | 1938-11-22 | 1938-11-22 | Improved alarum gun |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB871038A GB512157A (en) | 1938-11-22 | 1938-11-22 | Improved alarum gun |
Publications (1)
Publication Number | Publication Date |
---|---|
GB512157A true GB512157A (en) | 1939-08-30 |
Family
ID=9857748
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB871038A Expired GB512157A (en) | 1938-11-22 | 1938-11-22 | Improved alarum gun |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB512157A (en) |
-
1938
- 1938-11-22 GB GB871038A patent/GB512157A/en not_active Expired
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