✦ LIBER ✦
Effect of atmosphere on wireless telegraphy sender and receiver: A. Esau(Phys. Zeits., xii, 798.)
- Book ID
- 104117855
- Publisher
- Elsevier Science
- Year
- 1912
- Tongue
- English
- Weight
- 59 KB
- Volume
- 173
- Category
- Article
- ISSN
- 0016-0032
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✦ Synopsis
on a combination brush, of which a section is shown, Fig. 6. In this case, by a proper selection of proportions ,,f binder or pitch and the mixture, it has become possible to gain the same shrinkage in the two widely different materials, a hard brush body and a body largely composed of graphite, so that the two, are still firmly bound together after firing, A sort of laminated brush is thereby produced, and if there \ere service deman,ts fi)r such laminated brushes they could 1)e produced.