We use Optical Character Recognition (OCR) during our scanning and processing workflow to make the content of each page searchable. You can view the automatically generated text below as well as copy and paste individual pieces of text to quote in your own work.
Text recognition is never 100% accurate. Many parts of the scanned page may not be reflected in the OCR text output, including: images, page layout, certain fonts or handwriting.
A Scene From America's Projector Carbon Center...
Pyrometric cones accurately check baking cycles
" This sure-fire test is one of the ways we know a projector carbon is perfectly baked"
^■k*V^Bk^
This photo isn't an abstract rendering of an artist's idea. It's a picture of one of the many important steps in projector carbon production at our Fos
tOria, Ohio, plant. Jim Hoynes
These three-sided figures are called pyrometric cones. Because they react in a predetermined way to high temperatures, we use them to help tell us exactly when National projector carbons have reached the end of their baking cycle.
When one cone is leaning and the other is sagging, we know it's time to remove the pro
-says JIM HOYNES
National Carbon Sales Engineer
jector carbon material from the baking furnaces for cutting and further processing.
Every step of the baking cycle, of course, is constantly watched over by standard heat checking instruments, such as thermocouples and highly sensitive optical devices.
In the manufacture of top quality projector carbons it is very important to know the precise moment they reach the peak point in baking. That's why at Fostoria we take every precaution in quality control to provide theatres with perfectly baked carbons. Only the finest quality can give movie audiences the finest screen lighting—indoors or outdoors.
Contact Mr. National Carbon
UNION CARBIDE
"National" and "Union Carbide" are registered trade-marks for products of
NATIONAL CARBON COMPANY
Division of Union Carbide Corporation • 270 Park Avenue • New York 17, N. Y. In Canada: Union Carbide Canada Limited, Toronto