r, more even, and better matted, so er, /, that is connected by a link, g, to the top bar. This bar carries front and rear sight tubes, h i, the lat- ter of which is fitted with crossed wires, and the former GEAVITY FEICTION CLUTCH, with an eye piece consisting of a disk of metal with a The object… … HUHFOED'S LEVELING INSTEUMENT. tangents, the latter meeting the arcs at the centers of SIMPSON'S GEAVITY FEICTION CLUTCH. the sides of the triangle. The recessed disk carries three disk segments, which bind against the triangular apertured disk was used without the notches, the cen- that it makes…
Patents · Iron · Inventor · Apparatus · Patented · Scientific American · Steam chest · Side bars · Horse power · Trade catalogs · Address munn · Type writing · Wooden magnet · Hot air · Railway rail
Internet Archive · Public domain (published before 1931). Free to use for anything.
