Hardeninq of Copper, etc. 67 Hardening of (lopper and Copper Alloys.--Everitt gives the following recipe: Melt together and stir until thoroughly incorporated, copper, and from one to six per cent. of manganese oxide. The other ingredients for bronze or other alloys may then be added. The coplaer b
โฆ LIBER โฆ
New electric lamp
โ Scribed by C.
- Publisher
- Elsevier Science
- Year
- 1877
- Tongue
- English
- Weight
- 56 KB
- Volume
- 104
- Category
- Article
- ISSN
- 0016-0032
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
New electric lamp
๐
Article
๐
1878
๐
Elsevier Science
๐
English
โ 55 KB
A new electric lamp
โ
Elihu Thomson; Edwin J. Houston
๐
Article
๐
1878
๐
Elsevier Science
๐
English
โ 91 KB
New electric bicycle lamp
๐
Article
๐
1912
๐
Elsevier Science
๐
English
โ 73 KB
Crystolon (silicone carbide ).--Amorphous silicon carbide, in the form of " carborundum fire sand," makes a good lining for elec-
Welsbach's new electric incandescent lam
โ
W.
๐
Article
๐
1898
๐
Elsevier Science
๐
English
โ 187 KB
Semi-incandescent electric lamp
๐
Article
๐
1884
๐
Elsevier Science
๐
English
โ 125 KB
A prize for a new electric lamp for mine
๐
Article
๐
1911
๐
Elsevier Science
๐
English
โ 66 KB
## 289 large electrodes. With a tube 6 metres long, fitted with electrodes presenting a surface corresponding to 5 square dcm. per ampere, ~a period of incandescence of 400 hours was attained.