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In the year 2000, at the turn of the century, the U.S. Federal Occupational Safety & Health Administration, OSHA, issued a Letter of Interpretation wherein it opined that aerial lifts known as scissors lifts (see illustration) are not aerial lifts but instead are mobile scaffolds.  The opinion was...
As with all scaffolds, there are design, construction, and safety issues with mobile scaffolds.  The idea here is to discuss some engineering issues, leaving the obvious safety issues to the “competent person, qualified in scaffold construction.”  Now that I think about it, perhaps the safety...
People do the most amazing things. Take the “scaffold” application illustrated in the two photographs. The photos, contributed by Mr. Steve Schuler of Carl Schuler Masonry Construction Company in Waterloo, Iowa, depicts a scaffold constructed of lumber and mounted to a Ford Pick-up Truck. A cursory...
Previous articles discussed scaffold regulations and scaffold training requirements, issues that obviously are important but don’t necessarily tell us how to erect or use a mobile scaffold properly. Mobile scaffolds, also known as rolling towers (formerly known in the old OSHA regulations as...