g shafts has been patented It can readily be imagined that a device of this kind Engineers' Society of Western Pennsylvania and the by W. Stanley and F. Darlington, of Pittsfield, Mass. might prove a very useful adjunct to a steamship, large Pittsburg Foundrymen's Association. It is proposed… … be transmitted instantly or necessarily at all to the fans, R. M. FRYER-AUXILIARY PROPELLING DEVICE. for the action of the gear wheel upon the worms is two- fold. It may drive the worm at a speed depending cost of about $200,000 ; upon this will rest a mammoth R. M. Fryer, of Washington, D. C, is…
Patents · Steel · Blast · Shaft · Munn · Scientific American · Iron · Gas engine · Second class · Horse power · Hot blast · Plate holder · Lord kelvin · Patent office · Sewing machine · Licensed engineer
Internet Archive · Public domain (published before 1931). Free to use for anything.
