Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 443
>l lol, t~^ (d |o) ^^ … ■m ^Yic^ Fig. 16. (B) Wiring Diagram of Controller with Separate Switch. device; the cutting out of the resistance upon the starting of theelevator is purely medianicah The arm or cross head on the con-troller, which cuts out the resistance in steps, is made to move over the contact pieces arranged…
Architecture · Building · Carpentry
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer03inte-106-45.webp)
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer03inte-64-16.webp)