f Albany, right, the other to the left, to a small drum inside the oil and black off so clean that it won't dirty a clean N. Y., is now producing heaters depending for their case of the instrument. Under this drum, and at- effect upon the heating of a conductor by an electric piece of rag. tached… … as this oil dries it does not take dirt. Tops Remarkable Armor Plates. INTERIOR C. C. H. CO. ELECTRIC HEATER. that have been done up four years in suc- A test of a new nickel steel armor plate cession by this method look better than those treated Every movement of the cords transmits its action to…
Patents · Railroad · Horse · Power · Horse power · Apparatus · External resistance · Vortex blast · Scientific American · Nose gate · Sewing machine · Hot water · Supply pipe · Internal resistance · Total eclipse
Internet Archive · Public domain (published before 1931). Free to use for anything.
