Watchmen's Time Detectors Operated by Batteries or Magneto Generators (1900)
Holtzer-Cabot Electric Company · Holtzer-Cabot Electric Company · leaf 118
its speed being 2000 rev. per minute, and is maintained practicallyconstant under all loads. It is an efficient machine and is thoroughly built; its shaft being of Stubbssteel and its bearing of phosphor bronze. Its height is S inches, thickness 3 inches, and weight 20 lbs. PRICE. 52 or 104 volts,… … JglflHE above cut represents our Non-Synchronous, Alternating Current Motor. The^ armature, whose speed is constant at 2000 revolutions per minute, is made wholly oflaminated iron. Copper bars insulated by a special process pass through holes nearthe periphery and are connected at their ends bv…
