uld receive were it a the cable keeps them away from the bridge. When by two pairs of perpendicular rods, one pair at each motor wheel. the tide is running out, the cable is not used. end of the frame. The table is normally held very Directly in front of it is a gate pivoted at the bot- After… … The apparatus was erected in 1859, and is to a certain The other side of this recess is engaged by the lower extent an interesting example of old engineering prac- MILLER'S ORE WASHER. end of a spring arm, engaged by levers, actuated by tice. An effort was made to substitute for this wheel crank…
Patents · Munn · Center · Iron · Scientific American · American supplement · Patent office · Wrought iron · Iron pipe · Hudson river · Coupling pin · Perpetual motion · Trade mark · Iron pipes
Internet Archive · Public domain (published before 1931). Free to use for anything.
