An early experimenter with high-pressure steam was Jacob Perkins.
(His design was modified by Jacob Perkins, who obtained the first patent for a refrigerating machine in 1834.)
The uniflow engine was first used in Britain in 1827 by Jacob Perkins and was patented in 1885 by Leonard Jennett Todd.
Jacob | John Jacob Astor | Jacob M. Appel | Ann Perkins | Jacob Epstein | Perkins and Will | Jacob Zuma | Jacob Obrecht | Carl Perkins | Sue Perkins | Jacob Lawrence | Jacob Appel | John Jacob Astor IV | Irène Jacob | John Perkins | John Perkins (author) | Jacob Jordaens | Charlotte Perkins Gilman | Tex Perkins | Paul Jacob | Maxwell Perkins | Kleiner Perkins Caufield & Byers | Perkins+Will | Perkins | Millie Perkins | Mike Perkins | Meshullam ben Jacob | Jacob Riis | Jacob Grimm | Jacob Christian Schäffer |