Two factors dictate the design of an ideal brace: 1  Joints adjacent to the thumb CMC joint must be excluded to maximize function when wearing the brace; thus a design using three points of pressure cannot be used. 2  The brace must specifically prevent CMC dorsal translation.
Expansion valve. An expansion valve is a valve used for different purposes: Steam engines. A valve used to control the expansion of steam: Expansion valve (steam engine) The best-known of these was the Meyer expansion valve, the invention of Jean-Jacques Meyer.
The motorcycle we currently ride today was developed in 1885 by the German engineer Gottlieb Daimler. In 1872, his interests turned to the internal combustion engine, when he joined Gasmotorenfabrik Deutz as technical director. Here he met up with Nikolaus Otto, pioneer of the four- cycle engine. It was during this time he became convinced steam engines were an outmoded form of power for the future. Wilhelm Maybach, a man who also understood the drawbacks of steam, soon joined the quest to produce and perfect the gasoline engine. By 1876 the commercial development of the Otto four - cycle engine was complete.