(under the class definition) Device including a chair provided with means mounted on the chair to prevent the chair from falling over backwards, which means either (1) prevents any tipping movement, or (2) permits a limited amount of tipping but prevents tipping beyond the set limit.
SEE OR SEARCH THIS CLASS, SUBCLASS:
270.1+, for means to limit or immobilize the rocking motion of a rocker mounted chair.
325+, for a bottom and a back articulated to a base member and tiltable as a unit relative to the base member.
SEE OR SEARCH CLASS
182, Fire Escape, Ladder, or Scaffold,
165+, for a prop pivoted to a ladder to prevent tipping of the ladder. 248, Supports,
351+, for a prop to hold an article from falling against the action of gravity.