Watchmen's Time Detectors Operated by Batteries or Magneto Generators (1900)
Holtzer-Cabot Electric Company · Holtzer-Cabot Electric Company · leaf 108
all cells The H.-C. Motor Generator is now in use in many telephone exchanges, andon a number of fire alarm systems throughout the country, and the success of ourmachines is largely due to the smooth running, slow speed and careful construction ofArmature and Bearings. Our Motor Generators are now… … We have recently designed a special type of Motor Generator, shown above, formedical purposes. It will be seen that the Motor is insulated from, and electricallyseparate from the Generator, and connected thereto by an insulated coupling. Theobjection sometimes made by physicians to this class of…
