Hawkins electrical guide ... : questions, answers & illustrations : a progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications ; a practical treatise (1914)
Hawkins, N. (Nehemiah), 1833-1928 · New York : T. Audel & Co. · leaf 265
nternal gears reduces the capacity and increases thecar speed. This machine is built for either a. c. or d. c. current, using either electric ormechanical control in the car. Worm Gear Drive.—This form of gear is very extensivelyused and is especially suited to slow speed elevators driven byhigh… … In construction the gearing isenclosed in a cast iron box orcasing which serves to protect thegears from dust and also to form areservoir for oil used for lubrication.The worm is generally placed belowthe gear, in order that the worm may-run in an oil bath. There are twokinds of gear: 1. Single…
Electrical engineering
Internet Archive · Brigham Young University · Public Domain Mark 1.0. Free to use for anything.
![An illustration from Novo teatro di machine et edificii per uarie et sicure operationi : co[n] le loro figure tagliate in rame é la dichiaratione, e dimostratione di ciascuna : opera necesaria ad architetti, e a quelli, ch[e] di tale studio si dilettano (1607)](https://img.insideoutlibrary.com/img/200/ia-novoteatrodimach00zonc-60-36.webp)
