WEKSLER INSTRUMENTS
on Five out of Five
I/EC
REPORTS
be used. Because the outside 14inch casing will not have as much thermal stress, Grade X-42 steel with a 42,000-p.s.i. yield will be used. A 10,000-p.s.i. tension will be placed on the outer casing through temporary anchors at each end, before burying it. At the casing's operating temperature of 110° F., the tensile stress will be relieved. The inner lines will be heated to 225° F., allowed to expand about 35 feet, and permanently fastened to the outer casing. In normal operation then at about 300° F., the thermal stress will be compressive. The thermal and tensile stresses combined at 300° F. thus will be about 60% of the yield strength. If the inner pipelines are cooled to near the soil temperature, the thermal stress will be tension and equal to about 70% of the yield strength. Longitudinal movement of the pipelines is almost zero and no expansion joints will be needed. Freeport expects that after soil
is replaced around the pipeline, the soil resistance will prevent much appreciable movement, hence use of temporary anchors. Movement, if it occurs, would be in the section near the mine, which will be buried in clay, while the near shore section (roughly 2 miles) will be in fine sand. Work was expected to begin on the line May 1. Total cost is estimated to be $2,000,000. B.F.G.
Peekaboo N o v e l c a r d system speeds up literature searching for Jersey Production Research
W.
HAT is the chemist or engineer doing nowadays? Well, if he's anywhere near average, he's spending better than half his time coping with scientific communications problems —reading, writing, talking, and list-
For t h e finest, nothing but t h e finest design, engineering, construction and
\
equipment. Baseball W h a t ' s aboard the T R I T O N , t h e nation's fifth
nuclear
powered
s u b m a r i n e in t h e w a y of instrum e n t s to
indicate a n d
temperature,
record
pressure
and
humidity?
N e w Y o r k City
W e k s l e r . . .just as it's Weksler on t h e Nautilus, Seawolf, Skate a n d
Skipjack.
W e ' r e proud of t h e distinction a n d of our contribution to t h e nation's defense, a n d just as proud of our
instruments
for earning for us this honor.
Write t o d a y for condensed Weksler
National League
bulletin
of
instruments.
Photograph Courtesy of Electric Boat Company Div. General Dynamics Corp,
WEKSLER INSTRUMENTS FREEPORT,
L. I., N E W
CORP. YORK
INDICATING AND RECORDING INSTRUMENTS FOR TEMPERATURE. PRESSURE AND HUMIDITY
34 A
P e e k a b o o i n g is d o n e b y superimposing I B M c a r d s with the l i t e r a t u r e r e f e r e n c e s on a d e s i r e d subject. C o r r e c t r e f e r e n c e s a r e f o u n d b y noting only the holes which match up a n d through which the searcher c a n see d a y l i g h t . This is shown a b o v e b y the t w o b l a c k lines passing through the m a t c h e d holes
Circle No. 78 on Readers' Service Card INDUSTRIAL AND ENGINEERING CHEMISTRY
