Jean Jacques Meyer

Jean-Jacques Meyer (1804-1877) was a French engineer, originator of articulated locomotives which bear his name.

Meyer registered his first patent describing the system in 1861. The Meyer locomotive comprised:
* a rigid single frame supporting cabin, and boiler;
* two revolving units like bogies made up each one of a steam engine involving a group of driving wheels and possibly comprising carrying wheels.

The first engine of this type built by the Cail company in 1868 was a 0-4-0+0-4-0 named "the Future". But the most significant example of this system was the series of 0-6-2+2-6-0 tender goods engines built by Gaston du Bousquet.

"The above information is taken from the [http://fr.wikipedia.org/wiki/Jean-Jacques_Meyer French Wikipedia] article on the subject."