Abstract :
Safety and economy are the keynotes of the specially designed, all-steel, window-washing and exterior maintenance machine recently placed in operation at Lever House, headquarters of Lever Brothers Company, New York, N. Y. The 24-story office building has 1,404 fixed, nonopening windows nearly flush with the exterior with only 1 inch of sill. It is estimated that $100,000 have been saved in building costs alone by installing fixed instead of conventional windows. Costs of washing have been cut by two-thirds and substantial savings in interior cleaning, heating, and air conditioning will be achieved. Two men can clean the outside of all 1,404 windows in 6 days.
