✦ LIBER ✦

Mining and metallurgical section: A meeting of the section was held in the Hall of the Institute on Thursday evening, February 15, 1917, at 8 p.m.

✍ Scribed by T.R. Parrish

Publisher: Elsevier Science
Year: 1917
Tongue: English
Weight: 51 KB
Volume: 183
Category: Article
ISSN: 0016-0032
DOI: 10.1016/s0016-0032(17)90727-6

No coin nor oath required. For personal study only.

✦ Synopsis

Discussion of the limits of direct-current machines. Development of direct-current machines in the last ten years, showing the effect of interpoles and compensating windings on the speed and output.

Development of turbo and of water-wheel driven alternators, with a discussion of the problems of mechanical design and ventilation; also the effect of the automatic regulator on the design and on the output.

Development of the Rotary Converter, giving the reasons for the success of the sixty-cycle rotary in large sizes and for the high speeds now in use.

After an interesting discussion, a rising vote of thanks was extended to the speaker, and the meeting adjourned.

T. R. PARRISH,

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