Inside Out Library · Explore

Scientific American, Vol. 60, No. 26 (1889) (1889)

leaf 5

An illustration from Scientific American, Vol. 60, No. 26 (1889), 1889, leaf 5
this bearing projecting into an annular exposed behind an ordinary, photographic negative, a in engagement with the raised coupling pin until two chamber on the top of the arm and forming an oil drawheads come together, when the pin drops to en- very sharp print in blue may be obtained by exposure… … which he had set before him. He never scattered his DUFFY'S SUPPORT FOR SPINNING SPINDLES, energy, he never wasted an hour, and by steadily keep- mit the passage of oil from the chamber down be- coupling pin are arms passing through vertical slots.in ing at it, in spite of continual ill health and…

Internet Archive · Public domain (published before 1931). Free to use for anything.

More pictures from Scientific American, Vol. 60, No. 26 (1889)

More like this