316 each other and with the semi-circular bands NEW INVENTIONS. … water per second from each pump with a ve- What they claim asan improvement upon the f Much attention is now being directed to supply the partial vacuum created in pipe A, locity of 40 feet per second and a force of 11.3 magnets is the construction of the electromag- what has been long neglected,…
Internet Archive · Public domain (published before 1931). Free to use for anything.