.~ Nonself supporting-type (e.g., leaned against building)
DEFINITION
Classification: 187/241
Nonselfsupporting-type (e.g., leaned against building):
(under subclass 240) Movable elevator wherein the rigid or semirigid means for contacting and limiting the travel of the load-underlying support surface to a fixed vertical path is incapable of maintaining itself in an operative position without being leaned against or propped up by another structure (e.g., building, pole).
SEE OR SEARCH CLASS
182, Fire Escape, Ladder, or Scaffold,
101+, for a vertically moving platform on a ladder.