M any o f the inherent qualities in Gas contribute to its unit and overall economy in use. Further, the research achieve
ments o f the American Gas A ssociation and Gas equipment manufacturers in sponsoring ad
vanced apparatus to utilize to the utm ost the advantages o f this modern fuel, add to its econom y.
Am ong the contributions to economy o f Gas application in industrial plants arc: speed— desired temperatures are at
tained in shorter tim e in the Gas furnace;
controllability—w h ich provides and main
tains the precise temperature required; sim
plicity— Gas equipment requires less space, maintenance, attention; elimination of storage
— Gas requires no capital investm ent in stored fuels, again saves space; dependability
— Gas is there w hen you w ant it; uniformity of production and elimination of rejects— Gas users report that production has been improved, products are superior,
seconds or rejects cut to a minimum or elim inated, since sw itch in g to Gas.
The economical application o f Gas to your specific operations can best be explained by the Industrial Engineer o f your local Gas Company. H is service
is com plete, you incur no obligation.
7 8 F E B R U A R Y 1 9 4 6 • C H EM ICA L & M E T A LLU R G IC A L E N G IN E E R IN G
L E C T R O D R Y E R
u tu n L ii.L E C T H O D R Y E R S D R Y W I T H A C T I V A T E D A L U M I N A S Dehu'm idification of inactive n aval v essels and m erchant ships, and the
control of hum idities in storage warehouses— these are the im portant tasks assigned to th ese tw o typ es of Lectrodryers. H undreds are being built and shipped all over the country.
R e la tiv e hum idities of 30% or lower are autom atically m aintained w ith the h elp of these D R Y in g m achines. Ships will be k ep t ready for service on short notice. M aterials will be preserved against corrosion, m ildew , rust or rotting.
L ectrodryers w ill perform sim ilar service for you, D R Y in g air, gases and m an y organic liquids to low dew-points. Learn m ore about them by talking w ith our m en at the C hem ical Show, or write Pittsburgh Lectrodryer Corporation, 303 32nd Street, Pittsburgh 30, Pennsylvania.
In England :B irle c , Lim ited, Tyburn Road, Erdington, Birm ingham . In A u stralia: B irle c, Lim ited, 51 Parram atta Road, Glebe, Sydney.
T h is L e c tr o d r y e r h a s a c a p a c i t y o f 500 c u b ic fe e t p e r m in u te .
T h i s L e c tr o d r y e r d r ie s 15 0 c .f .m .
CHEM ICAL & M ETA LLU R G IC A L E N G IN E E R IN G • F E B R U A R Y 1 9 4 6 • 7 9
100 h o rsep o w er, th re e p h a s e , c o n tin u o u s duty, o p e n ra te d , b a ll b e a r in g m otor, d riv in g a n a ir co m p resso r in c le a n fa c tory s u r ro u n d in g s -n o s p e c ia l m otor p ro tectio n is n e c e s s a ry .
Form J
G e n e ra l P u rp o se A p p lica tio n
S p lash Proof Protection
7 * op perform ance over the lon gest period of time is the / result of selectin g the correct type' a n d size of electric motor. C entury's w id e r a n g e of types a n d sizes w ill satisfy a ll
p op u lar requirem ents.
C entury motors a re built in op en protected, sp la sh proof, totally e n clo sed fa n cooled , a n d explosion proof types; with rigid, cushion, horizontal, or v ertica l m ountings. C entury motor sizes r a n g e from 1 /2 0 to 6 0 0 horsepow er a n d a r e a v a il
a b le in sin g le p h a se, three p h a se, a n d direct current types.
There is a Century motor with the correct e le c tr ic a l ch a r
acteristics to m eet the lo a d requirem ents — a n d w ith the right fram e to a d e q u a te ly protect the motor from a n y h azard ous atm ospheres. By se le c tin g the correct Century motor you g et top p erform ance.
Be sure you g et top perform ance from your ele c tr ic motor driven in stallation s — sp ecify C entury.
C E N T U R Y E L E C T R I C CO.
1 8 0 6 P ine Street, St. Louis 3, M issouri O ff ic e s a n d S t o c k P o in t s i n P r i n c i p a l C itie s
SO F E B R U A R Y 1 9 4 6 • C H EM ICA L & M ETA LLU R G IC A L E N G IN E E R IN G
B E L IE V E IT O R N O T . . . IT 'S ONE P IE C E !
W e l d E L L S
TA Y LO R FORGE & PIPE W O RK S, G e n e r a l O f f ic e s * W o r k s : C h ic a g o , P .O .B o x - 4 8 5 N e w Y o r k O ffice: 5 0 C h u r c h S tr e e t • P h ila d e lp h i a O ffice: B r o a d S tr e e t S ta t io n B ld g .
This heavy, curved w elding neck looks like several fittings w elded together. That w ould be the easy w ay to make it, but the particular condition it serves requires a one-piece forging.
Turning out a hollow forgin g like this—involving a flanged, curved, and upset section—is a tough undertaking. A ttd yet it is typical of the kin d of jobs that many people feel w e are better qualified to handle than any other forging plant.
Yes, d oin g things w ith h ot m etal that nobody else does— know ing how to control its flow under pressure and impact — has been our specialty here for a good m any years.
It is the "know -how ” acquired in these special undertakings that explains w hy w e are able to make WeldELLS and other Taylor Forge w eld in g fittings, the fittings that have "everything” . . . w hy you find in WeldELLS extra m etal properly distributed where service stresses are greatest . . . w h y WeldELLS have tangents . . . w hy all dimensions are so extrem ely accurate.
Just check the list o f features, opposite, and w e believe you w ill agree that WeldELLS indeed have everything conducive to sound en gi
neering and utm ost econom y in every p ipe w eld in g job.
• S e a m le ss — g re a te r s tre n g th and uniform ity.
• Tangents—keep weld aw ay from zone o f highest stress— sim plify lining up.
• Precision quarter-marked ends
— sim plify layout and help insure accuracy.
• Selective reinforcement — pro*
vides uniform strength.
• Permanent and complete identi- ficatlon marking—saves time and eliminates errors in shop and field.
• Wall thickness never less than specification minimum— assures fu ll strength and long life.
• Machine tool beveled ends—pro
vides best welding surface and ac
curate bevel and land.
• The most complete line o f Weld
ing F ittin g s and F o rg e d S t e e l Flanges in the World — insures complete service and undivided re
sponsibility.
No o t h e r fittin g s f o r p ip e w e ld in g co m b in e th e s e f e a t u r e s fou n d in W e ld E L L S :
CHEMICAL & M ETA LLU R G IC A L E N G IN E E R IN G • F E B R U A R Y 1 9 4 6 8 1