NO ADMITTAVCIÏ
m^ffTfH
• . so Alcoa DRYs the r o o m w i t h a Lectrodryer" W E T t h in this room at Alcoa's St. Lawrence Rectifier Station w o u l d attack the highly polished surfaces of the mercury arc rectifier tanks—almost in a matter of minutes. So A l u m i n u m Company of America installed a Lectrodryer right along Avith the plant's other pro duction equipment. It's been on t h e j o b since 1942. A Lectrodryer is a production
machine,
D R Y i n g air,
gases or organic liquids. I t s original cost is virtually its only cost, b u t i t p a y s for itself o v e r and over again, speeding your production, holding quality constant, cutting other costs. Let our engineers show yc ι h o w a Lectrodryer will produce for you. Write
Pittsburgh This Lectrodryer has been D R Y i n g air for Alcoa since 1942, to prevent damage t o rectifiers under repair.
Lectrodryer Corp., 305 32nd St., Pittsburgh 30, P a . In Jo ID In
England: Birlec, Limited, Tyburn Road, Erdington, Birmingham. Australia: Birlec, Limited, 51 Parramatta Road, Glebe, Sydney. France: Stein e t Roubaix, 2 4 Rue Erlanger, Paris XVI. Belgium: S. A. Beige Stein e t Roubaix, 320 Rue du Moulin, Bressoux-Liege.
WCTRODWERS DRV WITH ACTIVATED A L P H A S
LECTRODRYER
* REGISTERED TRADEMARK U.S. PAT. OFF.
3194
CHEMICAL
AND
ENGINEERING
NEWS