hus imparting to them a slight coat- is cleared out, and the walls of the square transverse ed irregular shape on the map of the beginning of our ing of plumbago, to which the oiled silk wilf not ad- hole are smoothed. One of the walls of the square here. As an elastic rubber pump barrel, of the… … published documents which permit us to estimate the this kind for compressing air or for a U>w 1.-TESTIN0 SIKPLE AIB FTTMF. rapidity of the process.—P. K., Nature. vacuum, the elastic tube forming the pump barrel may be larger and thinner, and the ■ < < > >» -— Broinldla. one valve seat, and the…
Patented · Patents · Munn · Valve · Scientific American · Chevreul · American supplement · Years ago · Address munn · Wooden valve · Square miles · Coal Tar · Express money · Rubber tube · Valve casings
Internet Archive · Public domain (published before 1931). Free to use for anything.
