e tank and times that of copper. If German silver wire cannot be placed on the main truck. conveniently procured, iron wire may be substituted. ro oe oe RHEOSTAT AND RESISTANCE COLUMN.* In this case the coils will have to be longer. Besides the carefully constructed resistance boxes Eisenlohr’s… … Fig. 1—GERMAN SILVER RHEOSTAT, Ohms. Ft. Ohms. Ft. +9 +e 1........ 8714 No. 24 Am. W. G. 6........ 56 No. 30 Am. W.G. IMPROVED LOCK AND SHACKLE FOR RAILWAY requires adjustable resistances for heavy and light cur- Deuce: IBS “No. 24 $2 8 12.. . 704% No. 32 * e SWITCHES, rents, which need be only…
Internet Archive · Public domain (published before 1931). Free to use for anything.
