Equipment measures roll temperature without touching surface of roll

• Publisher: Elsevier Science
• Year: 1951
• Tongue: English
• Weight: 194 KB
• Volume: 251
• Category: Article
• ISSN: 0016-0032
• DOI: 10.1016/0016-0032(51)90035-x

✦ Synopsis

action which resulted in partial discharge of the negative plate. In this process, the by-product, stibine gas, was being produced.

It seemed clear, then, that if they could eliminate the antimony, a better battery would result.

Searching for a way to do this, they turned to another field of telephone research. They learned that in experimenting with hardening agents for the lead covering of cables, Bell Laboratories metallurgists had successfully used small amounts of calcium instead of the usual antimony.

Less than 0.10 per cent of calcium, compared with the 12 per cent of antimony usually employed in battery alloy, could do the job. And the battery chemists found, too, that calcium does not cause any of the troubles for which antimony had been responsible.

From here it was only a brief step to development of the new, lead-calcium storage battery, although it has taken several years to prove its suitability and endurance under actual operating conditions.