invention of M. Schmidt, M.E., of 3 split for one half its length, and the two arms thus formed adopted this nut, and use it on the tracks, engines, cars, and i Zurich, Switzerland. It consists of a lever terminating in machinery. The Atwood Safety Nut Company manufac. are slightly separated at the… … vice which will enable the compressors and pumps to ope-! THE ATWOOD SAFETY NUT. rate with equal pressure on both sides of the delivery valve. | Further information may be obtained by addressing J. W. The invention consists of an auxiliary valve arranged out. | Labaree, Secretary and Treasurer,…
Internet Archive · Public domain (published before 1931). Free to use for anything.
