GB190707043A - Improvements in and relating to Miners' Lamps. - Google Patents
Improvements in and relating to Miners' Lamps.Info
- Publication number
- GB190707043A GB190707043A GB190707043DA GB190707043A GB 190707043 A GB190707043 A GB 190707043A GB 190707043D A GB190707043D A GB 190707043DA GB 190707043 A GB190707043 A GB 190707043A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lamp
- bolt
- cylinder
- miners
- flame
- 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
Landscapes
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
7043. Ferrette, L. March 23. Miners' safety lamps.-Relates to a miner's lamp of the type in which a safety locking-device ensures that the lamp is extinguished before it can be opened. According to the present invention, the lamp must be inverted before it can be opened. The reservoir a of the lamp is provided with ratchet teeth f. When the usual top part c, e, d of the lamp is screwed on the reservoir, a bolt h, which slides in a cylinder g fixed to the part c, engages one of the teeth f, and prevents the top part of the lamp from being unscrewed until the bolt is released from the tooth by turning the lamp upside down. This movement causes a disk i, Fig. 3, provided with a socket j which surrounds the burner, to move, and the socket j extinguishes the flame. Projections l on the disk are adapted to prevent it from sticking. The bolt h slides freely in the cylinder g, but its movement is limited by a thick lubricant in the cylinder, which is adapted to cause the flame to be extinguished before the bolt h is free of the ratchet.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB190707043T | 1907-03-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB190707043A true GB190707043A (en) | 1907-12-19 |
Family
ID=32548359
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB190707043D Expired GB190707043A (en) | 1907-03-23 | 1907-03-23 | Improvements in and relating to Miners' Lamps. |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB190707043A (en) |
-
1907
- 1907-03-23 GB GB190707043D patent/GB190707043A/en not_active Expired
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