ties from 3,000 pounds to 5,000 pounds. of the two switch knives directly to the operating sheave. In the small illustration is shown a machine for speeds This sheave is loose on the drum shaft and is rotated ranging from 10 feet per minute to 100 feet per minute by the wire rope from the car at… … which surrounds the electric light chandelier and with electric annunciator PBIVATE BESIDENCE same. On this screw are connected to call buttons at each landing. ELEVATOB. As shown in the illustration, the control of the car is two stationary nuts and one traveling nut so adjusted that when the car…
Patents · Munn · Scientific American · Apparatus · Ice cream · Gas engine · Horse power · Operating sheave · Water tube · Mother lode · Seventh avenue · Pig iron · Declination south
Internet Archive · Public domain (published before 1931). Free to use for anything.
