Air carbon arc cutting is common in industries that work with stainless steels, cast iron, or ordinary carbon steel.
22.
Thorium fluoride was used in manufacturing carbon arc lamps, which provided high-intensity illumination for movie projectors and search lights.
23.
Emil Behnke used a carbon arc lamp, lenses and reflectors to photograph human vocal cords at exposures of ?second.
24.
Thorium tetrafluoride was also used in manufacturing carbon arc lamps, which provided high-intensity illumination for movie projectors and search lights.
25.
Mitchell also made a pin-registered background plate projector with a carbon arc lamphouse which was synchronized with the film camera.
26.
Unlike single-carbon arc welding, in "'twin-carbon arc welding "'the arc is maintained between two carbon electrodes held in a special holder.
27.
The plant was operated by the Anglo Great Lakes Corporation and produced high grade carbon for use in carbon arc burning.
28.
They looked at the old mechanism that opened and closed the curtains and the generator for the old carbon arc lights.
29.
The only major change is that in 2003 the lamp houses were changed from carbon arc lamp to powerful light bulbs.
30.
The sheets were exposed to the artwork via a carbon arc lamp, washed with water and process chemicals, and then dried.
