This Divining Rod Talks to Searchers . . . p r o m p t e d b y DPi H I G H V A C U U M
T
HE divining rod in this case is a helium probe. It is moved slowly along suspected areas. If it "sniffs" a leak so minute that a thimbleful of air would take 30 years to get through, an alarm sounds. The probe is part of a highly sensi tive instrument used to show presence or absence of any leak in pressure or vacuum lines and equipment—in lines buried underground, in welds, soldered joints, gasket connections.
Leak-finding can be a difficult and costly process with ordinary methods. The Consolidated Leak Detector, em bodying DPi high vacuum pumps, pro vides a unique and inexpensive method for locating the defective line or faulty spot and for accurately measuring rate of leakage. Scores of industries can use this device for controlling production pro cesses or testing finished products. It is one of many fine instruments made
available by D P i for broader and more efficient use of high vacuum techniques. We shall be glad to work with you on any problem involving the use of high v a c u u m . For c o m p l e t e i n f o r m a t i o n write t o : Vacuum Equipment Depart ment, Distillation Products Industries, 741 Ridge Rd. West, Rochester 4, Ν . Υ. (Division ofEastman Kodak Company).
high vacuum research a n d engineering Also · . . vitamins A and Ε . . . distilled monoglycerides . . . more than 3 3 0 0 Eastman Organic Chemicals for science and industry.
VOLUME
2 8,
NO.
51
» DECEMBER
18,
1950
4463
