DE154636C - - Google Patents
Info
- Publication number
- DE154636C DE154636C DENDAT154636D DE154636DA DE154636C DE 154636 C DE154636 C DE 154636C DE NDAT154636 D DENDAT154636 D DE NDAT154636D DE 154636D A DE154636D A DE 154636DA DE 154636 C DE154636 C DE 154636C
- Authority
- DE
- Germany
- Prior art keywords
- spiral
- bourdon tube
- lamp
- expanding
- dirt
- 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.)
- Active
Links
- 239000002184 metal Substances 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 2
- 238000011109 contamination Methods 0.000 claims 1
- 239000000428 dust Substances 0.000 claims 1
- 239000011521 glass Substances 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
- F21L23/00—Non-electric hand-lamps for miners
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE154636C true DE154636C (enExample) |
Family
ID=421165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT154636D Active DE154636C (enExample) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE154636C (enExample) |
-
0
- DE DENDAT154636D patent/DE154636C/de active Active
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