upon the shaft which If, then, we were to keep the contact carries the armature ; collecting brushes points the same as when no current was make contact with the commutator as passing, we should short circuit the sec- shown in the diagram. If the external tions of the armature at a time when… … magnets excited by a current from a through the armature, the greatest dif- smnll dynamo -electric machine, were in- ference of potential between the two troduced by Wilde; these may be de- brushes would be found when they made scribed shortly as dynamos with separate contact at points at right…
Engineering
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer02inte-354-199.webp)
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer02inte-346-195.webp)
