 Virgil C. Anderson Marine Propulsion Invention Atlantic Liner old Photo 1920's Voir autre(s) scan(s) en bas Taille (pouces/inches): about 8x10; 20,3cm X 25,4cm Description:Claims invention will pump ship across Atlantic in 36 hours. Virgil C. Anderson, who served as submarine and airplane mechanic during the World War, claims to have perfected a new method of marine propulsion, whereby approximately thirty-six hours. Instead of the ordinary screw propellers and dudder with which boats commonly are equipped, young Anderson's freak eighteen foot model crant is propelled through the water by the apparent simple method of pumping. Motive power is transmitted to twin pistons, working in cylindrical pipes which draw in the water and discharge it under high pressure. Nozzles at the end of these pipes can be revolved at will, to guide the boat in any desired direction or to spin it on its own centre of gravity like a top. Anderson figures that twenty-four inch pistons, with a six foot stoke would carry an ordinary ocean liner across the Atlantic in less than three days, declaring hulls can be redily constructed which would withstand the speed up to 100 miles an hour. Virgil Anderson pointing the nozzles which are also used for steering. Date: late 1920's Lieu: San Francisco, California Photographe/Studio: NEWS SERVICE (Misc) Etat: good condition, poor quality, Bon �tat, quelques d�fauts ,voir scans. dans notre boutique ebay Aux Vieux Papiers   |