FOUR CYLINDER COMPOUND EXPRESS ENGINE 1898
CHENIN de FER du NORD - FRANCE

     These engines were built for the above company by the Alsatian Engine Co. of Belfort Frances.

     The outside high pressure cylinders are 13½" x 25.2" stroke and the inside low pressure 21" x 25.2" stroke; weight in working order 51½ tons, steam pressure 220 lbs per square inch. This type of engine is now used on most of the leading French Railways and the type illustrated has attained the continental record for speed with the Calais-Rome express, weighing about 160 tons by running nearly 82 miles in 85 minutes.

     Note, the high pressure pistons drive one axle and the low pressure pistons drive the other, all wheels however being coupled together; the Walscheart valve gear is used.