Leeds & Northrup apparatus at the Louisiana Purchase Exposition 1904 (1904)
Leeds and Northrup Company · Leeds and Northrup Company · leaf 12
e of importance, since both forms of resistancestandards are to be found in most laboratories. The four ends of each pair of copper bars are also provided with mas-binding posts which may be used to clamp resistances which are usedas shunts. The remaining shorter copper bars which form the… … ] >tr.\11 s i < ii The commutator switch, which occupies a central position over thebase, is of very simple construction, of symmetrical form and effectsthe interchange of the coils by a single half revolution. Three mercury cups near the front are provided for putting in cir-cuit either one…
Electricity · Electrical Equipment · Electric Circuits · Electronics
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