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Manual stairclimber wheels can be fitted to hand trucks (sack trucks) and as the name implies, are designed to aid the moving of goods up or down stairs. This type of stairclimber relies on a wheel configuration known as tri-star , three wheels set into a triangle configuration replacing the standard wheel on either side.
The Stairmaster was patented in 1987 and soon after other companies offered versions of stair type exercise equipment. In 1991 StairMaster Exercise Systems, sued Temecula, California based Tru-Trac Therapy Products Inc. who made the "Aero-Step" alleging that their 1987 patent was infringed upon.
Stair lifts are used by people of all ages and child car seats can usually be fixed a standard stair lift seat using the seat belt provided with the stair lift system. Many stair lifts are also fitted with a key, to allow the user to prevent others from using the lift. Codes of practice and technical specifications apply to stair lift manufacture.
Some climbers will use a single full-thickness climbing rope with a diameter of approximately 9 to 11 mm (0.35 to 0.43 in), and some will use double ropes, or "half-ropes", to reduce rope drag (e.g. one rope is clipped into any given anchor or protection point), which have a reduced thickness of approximately 8 to 9 mm (0.31 to 0.35 in) to ...
A Japanese-only sequel, Crazy Climber 2, was produced in 1988. The game was essentially identical to Crazy Climber in gameplay but featured more sophisticated graphics and a few new features. On February 3, 1996, Hyper Crazy Climber was released only in Japan for the PlayStation. It has similar gameplay to that of the original game but also a ...
AAW An acronym for anti-aircraft warfare. aback (of a sail) Filled by the wind on the opposite side to the one normally used to move the vessel forward.On a square-rigged ship, any of the square sails can be braced round to be aback, the purpose of which may be to reduce speed (such as when a ship-of-the-line is keeping station with others), to heave to, or to assist moving the ship's head ...