Hiscox, Gardner Dexter, 1822?-1908 · New York, The Norman W. Henley publishing co. · leaf 82
34. MODERN HIGH-SPEED ENGINE,with pulley gover-nor, Atlas* model. … 238. SINGLE D SLIDE VALVE,with lap. The length of the valve overthe length from outside to outside otsteam ports is double the lap.
Mechanical movements
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.