GB191506586A - Improvements in or relating to Thermic Telephones and Microphones. - Google Patents
Improvements in or relating to Thermic Telephones and Microphones.Info
- Publication number
- GB191506586A GB191506586A GB191506586DA GB191506586A GB 191506586 A GB191506586 A GB 191506586A GB 191506586D A GB191506586D A GB 191506586DA GB 191506586 A GB191506586 A GB 191506586A
- Authority
- GB
- United Kingdom
- Prior art keywords
- support
- conductor
- terminals
- heating
- laid
- 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
- 239000004020 conductor Substances 0.000 abstract 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 2
- 241000206607 Porphyra umbilicalis Species 0.000 abstract 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 abstract 1
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 210000003298 dental enamel Anatomy 0.000 abstract 1
- 230000005611 electricity Effects 0.000 abstract 1
- 238000005530 etching Methods 0.000 abstract 1
- 239000004579 marble Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 239000000615 nonconductor Substances 0.000 abstract 1
- 239000000049 pigment Substances 0.000 abstract 1
- 239000002966 varnish Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R23/00—Transducers other than those covered by groups H04R9/00 - H04R21/00
- H04R23/002—Transducers other than those covered by groups H04R9/00 - H04R21/00 using electrothermic-effect transducer
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Insulated Conductors (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB191506586T | 1915-05-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB191506586A true GB191506586A (en) | 1916-04-27 |
Family
ID=32674784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB191506586D Expired GB191506586A (en) | 1915-05-03 | 1915-05-03 | Improvements in or relating to Thermic Telephones and Microphones. |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE297633C (enrdf_load_stackoverflow) |
| FR (1) | FR481660A (enrdf_load_stackoverflow) |
| GB (1) | GB191506586A (enrdf_load_stackoverflow) |
| NL (1) | NL4054C (enrdf_load_stackoverflow) |
-
0
- DE DENDAT297633D patent/DE297633C/de active Active
- NL NL4054D patent/NL4054C/xx active
-
1915
- 1915-05-03 GB GB191506586D patent/GB191506586A/en not_active Expired
-
1916
- 1916-05-03 FR FR481660A patent/FR481660A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL4054C (enrdf_load_stackoverflow) | |
| FR481660A (fr) | 1917-01-05 |
| DE297633C (enrdf_load_stackoverflow) |
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