tionwide agreement with Great Lakes C a r b o n C o r p . T h e C P S l i n e of G r a p h i t e A n o d e s f e a t u r e s an u n u s u a l l y s t r o n g l e a d
PRODUCTION
NEW EQUIPMENT Detergent Tester A l a r g e - a r e a color a n d c o l o r d i f f e r e n c e m e t e r is b e i n g m a d e b y G a r d n e r L a b o r a t o r y . It will m e a s u r e t h e c o l o r or f a b r i c samples that h a v e b e e n laundered. The instrument is s u i t a b l e l o r the m e a s u r e m e n t of c o l o r c h a n g e s from c l e a n f a b r i c —to soiled—to l a u n d e r e d , t h u s s h o w ing t h e effectiveness of t h e detergent u n d e r t e s t . T h e i n s t r u m e n t ' s 9 in. b y 1 2 ' in. e x p o s u r e a r e a a l l o w s a c c u r a t e m e a s u r e m e n t in s p i t e of t h e nonuniforinity of soil o n t h e s a m p l e s . T h e c o l o r i m e t e r is a l s o e q u i p p e d w i t b s p e c i a l filters w h i c h mav b e u s e d t o e l i m i n a t e a n y u l t r a v i o l e t r a d i a t i o n from t h e t u n g s t e n l i g h t s o u r c e for t h e p u r p o s e of m e a s u r i n g t h e d e t e r g e n t p r o p e r t i e s w i t h o u t i n c l u d i n g t h e effects of t h e f l u o r e s c e n t d y e s . O t h e r s p e c i a l fea t u r e s h a v e b e e n i n c o r p o r a t e d in t h e in s t r u m e n t , including a special ultraviolet s o u r c e w h i c h c a n b e used to a c c e n t u a t e t h e effects of f l u o r e s c e n t d y e s , a n d a s p e cial m e a s u r i n g circuit lor r e a d i n g .blue reflectance. Ε 1
For further information on any item mentioned here, see cou pon on p a g e 4204 e v a p o r a t o r s , hot w a t e r h e a t e r s , h e a t e x c h a n g e r s , t u b e sheets, t a n k s , a n d vessels. A v a i l a b l e in p l a t e g a g e s o n l y , L u k e n s C o p p e r - C l a d S t e e l c o n s i s t s of a l a y e r o f copper permanently and uniformly b o n d e d to o n e s i d e of a c a r b o n s t e e l b a c k - ' i n g p l a t e . C l a d d i n g p e r c e n t a g e s of 10, 1 5 , o r 20rc of total p l a t e t h i c k n e s s will b e f u r n i s h e d in p l a t e s i z e s u p to 1 2 0 in. w i d t h , 8 8 0 in. l o n g , a n d Vie t o Γ Λ in. thick. C o p p e r - c l a d steels a r e also a v a i l a b l e in flanged o n l y o r f l a n g e d a n d d i s h e d heads. T w o t y p e s of c l a d d i n g a r e f u r n i s h e d ; oxygen-free high conductivity copper for special electrical applications, a n d p h o s p h o r o u s d e o x i d i z e d c o p p e r for i m p r o v e d weldability. Other copper and copper al l o y s c a n a l s o b e p r o d u c e d in t h e form of clad steels. Ε 2
Graphite Ground Anodes Copper-Clad Steel Plate L u k e n s S t e e l C o . is in c o m m e r c i a l p r o d u c t i o n of c o p p e r - c l a d s t e e l p l a t e . A p p l i c a t i o n s will i n c l u d e e l e c t r i c a l a p p a r a t u s ,
C a t I iodic P r o t e c t i o n S e r v i c e h a s a n e w l i n e of G r a p h i t e G r o u n d A n o d e s for u s e in corrosion protection services. The source* is m a d e a v a i l a b l e t h r o u g h a n a
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w h i c h is s e c u r e d t o t h e a n o d e b y m e a n s of a m e t h o d of a t t a c h m e n t p e r m i t t i n g ex c e p t i o n a l l y h e a v y l o a d s o n t h e l e a d itself. T h e l e a d itself will s u p p o r t t h e full w e i g h t of t w o y o u n g ladies ( s e e a b o v e ) . Ε 3 Compressor. A centrifugal compressor has b e e n d e v e l o p e d b y t h e S a w y e r - B a i l e y Corp. for h a n d l i n g gases in s y s t e m s oper a t i n g at 6 0 0 l b . / s q . in. a n d h i g h e r . I t will o p e r a t e efficiently a t flows a s l o w a s 12Ô eu. f t . / m i n . A b u i l t - i n l u b r i c a t i o n s y s t e m e n s u r e s a n oil-free flow of g a s , as t h e imp e l l e r r e q u i r e s no l u b r i c a t i o n . I t l e n d s itself to p r e s s u r e d i f f e r e n t i a l s u p t o 5( l b . / s q . i n . T h e c o m p r e s s o r is p a r t i c u l a r ! ) a d a p t e d t o f l u i d i z i n g p o w d e r e d or g r a n u lar m a t e r i a l s lor a c c u r a t e f e e d i n g i n higl pressure systems. Ε A Pyrometer Accessories. Minneapolis H o n e y w e l l R e g u l a t o r C o . h a s a d d e d thre< t y p e s of i n s u l a t e d t h e r m o c o u p l e w i r e s a n d a s c r e w c o v e r t h e r m o c o u p l e h e a d to its l i n e of p y r o m e t e r a c c e s s o r i e s . T h e l a t e s t w i r e a d d i t i o n s i n c l u d e i n s u l a t i o n m a d e of p l a s t i c i z e d v i n y l c h l o r i d e for a m b i e n t t e m p e r a tures b e t w e e n —20° F. a n d 2 2 5 ° F . , a noni m p r e g n a t e d glass for a m b i e n t t e m p e r a t u r e u p to 1 2 0 0 ° F . , a n d a f i b r o u s silica for a m b i e n t t e m p e r a t u r e s u p t o 2 0 0 0 ° F . T h e s c r e w c o v e r t h e r m o c o u p l e h e a d , foi p o w e r g e n e r a t i o n , r e f i n e r y , c h e m i c a l , glass a n d c e r a m i c p l a n t s , will n o t f r e e z e o r r u s t . It can b e u s e d for s i n g l e o r d u p l e x t h e r m o couple or high-resistance t h e r m o m e t e r ele ments. Ε 5 I n s t r u m e n t C a l i b r a t o r . R e p u b l i c Flow M e t e r s C o . is m a k i n g a p o r t a b l e p n e u m a t i c i n s t r u m e n t for c a l i b r a t i o n a n d t e s t i n g of l o w p r e s s u r e i n s t r u m e n t s a n d c o n trols s u c h a s flow m e t e r s , d r a f t g a g e s , dif f e r e n t i a l p r e s s u r e t r a n s m i t t e r s , w i t h range?0 to 2 0 in w a t e r . M e a s u r e s p r e s s u r e oi v a c u u m in i n c r e m e n t s of 0 . 0 1 in. Ksscntially a m a n u a l l y o p e r a t e d force b a l a n c e , t h e c a l i b r a t o r c o n s i s t s of a s t a n d a r d c h e m i c a l w e i g h s c a l e a n d a n o i l sealec bell. W e i g h t s o n t h e s c a l e a r c b a l a n c é e a g a i n s t a n o p p o s i n g a i r p r e s s u r e in tin
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Wide, flat j a w s a l l o w gripping pressure to be spread e v e n l y and s a f e l y against the s υ μ sorted g l a s s w a r e . Jars h a v e no sharp edges to cut into their protective rubber or asbestos sleeves.
Large Hat w i n g nut bears on flat surface . . . does not b i n d . Thumb screw is m a c h i n e d o f high-strength a l u m i n u m a l l o y . The h e a d is large a n d easy to turn.
Securely locked i n place, screw h e a d cannot reseat s u d d e n l y , opening j a w s a n d relaxing grip on g l a s s w a r e .
Heavily nickel-plated pressure formed alloy provides o u t s t a n d i n g strength, corrosion re sistance.
Finish w i l l not mar through repeated a s s e m b l y and dis assembly.
J a w s m a y be rotated on shank, s a f e l y locked at a n y angle b y m e a n s of a brass w i n g nut. This pivot also a l l o w s overall length of c l a m p to be extended an additional % inch. Either rubber or f i n e - w e a v e a s bestos sleeves are a v a i l a b l e ; j a w s are neat a n d n o n - b u l k y .
T w o sizes: small c l a m p is 7 inches long (for holding objects up to IV2 inches in diameter); large clamp is 7V2 inches l o n g (for supporting objects up to 2 V i inches in diameter).
CASTALOY a CLAMP with a past... and a future T h i s Castaloy Utility Clamp, like the other 41-odd laboratory appliances that make u p the proven, conveniently-packaged Castaloy line, is the result of exceptional care in de sign and manufacture. Over twenty years ago Fisher researchers tried and rejected a great variety of features and finishes before Castaloy appliances became a reality. Since then Casialoy clamps, holders, sup p o r t s — t h e most c o m p l e t e line available today—have been proving their mettle in the world's laboratories.
BUT A FEW OF THE 4 2 CASTALOY . CLAMPS • HOLDERS • SUPPORTS Complete stocks of laboratory instruments, apparatus, reagent chemicals, furniture, and supplies at: 717 Forbes St., Pittsburgh 19, Pa. · 0 3 5 Greenwich St., New York 14, N.Y. · 2850 S. Jefferson Ave., St. Louis 18, Mo. · 7722 Woodbury Dr., Silver Spring, Md. · 904 St. James, Montreal, P.O., Canada · 245 Carlaw Ave., Toronto 8, P.O., Canada.
If possible, they'll be even better in the years ahead.
FISHER | | SCIENTIFIC
Write for FREE Castaloy Booklet ! » America'* largei» Manufacturer-Diitribirtor of Laboratory Appliance» and Reagent Chemico!»
VOLUME
30,
NO.
40
»
» OCTOBER
6,
1959
4199
NEED ALKALIES 7
GMSob Because? Solvay gives you the dependable quality and uniformity of America's oldest and largest producer of alkalies. Because Solvay can give you delivery service from strategically-located major plants and over 200 local stock points. Because? Solvay offers you a Technical Service that is operated on an Industry-Wise basis . . . providing expert advice t o individual industries. B e c a u s e Solvay sales service is handled by a staff of thoroughly trained, helpful salesmen operating from thirteen convenient branch sales offices . . . plus a nation-wide organization of selected jobbers, distribu tors and dealers.
SOLVAY ALLIED
PROCESS CHEMICAL
&
DYE
DIVISION
Caustic Potash
Sodium N i t r i t e
Chlorine
ArnMin'îit'fM t?ir;r:••• nate
Potassium Cat Donate
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