PREVIEW OF EXHIBITS Aetna Scient i f ic C o . B o o t h 168 Second a n d Spring- Sts . Everett 49» M a s s .

Various types of laboratory stills for production of pure water, with photo­graphs illustrating their design, and auto­claves, both rolling door and full opening type.

AIOJC Corp. B o o t h N24 Buffalo Ave. a n d Iroquois S t . N i a g a r a Fa l l s , Ν . Y .

Oxygenated hydrocarbons derived by partial oxidation in the liquid phase under pressure and elevated temperatures of petroleum fractions. Isolated organic acids ranging from C« to C», alcohols, ketones, and esters. Literature on physi­cal and chemical properties of Alox oxy­genated hydrocarbons and isolated prod­ucts , and suggested uses.

A m e r i c a n C y a n a m i d Co . B o o t h N 4 9 30 R o c k e f e l l e r P laza N e w York 2 0 , Ν . Υ .

Ionao ion-exchange resins and their use in Filt-R-Stil demineralizing units for the production of chemically pure water. Several smaller Filt-R-Stil units, a sche-.matie drawing and flow diagram of larger units, and a picture story of two typical successful applications.

A m e r i c a n H e a t R e c l a i m i n g Corp. 1270 S ix th Ave. B o o t h 115 N e w York 2 0 , Ν . Υ .

Smal l (10 square feet) spiral heat ex­changer. T o illustrate i ts variation from the conventional type, a plastic model of this unit and photographs of various units will be shown.

A m e r i c a n I n s t r u m e n t C o . B o o t h 103 8010-8020 G e o r g i a Ave. S i l ver Spr ing , M d .

Scientific instruments and controls such as electric immersion heaters, automatic temperature controls and relays, electric hydrometer with operating demonstra­t ion, electric oven, superpressure (shaker type ) autoclave, superpressure fittings, film and coating thickness gages, absorp­t ion cells, Warburg apparatus, and rub­ber testing apparatus.

A m e r i c a n Pulverizer C o . B o o t h N31 1249 M a c k l i n d Aye . S t . L o u i s , M o .

A model rolling ring crusher in opéra-t ien, showing constructional features, with constructional features of various crushers.

Anderson-Pr ichard Oil Corp . 3921 N o r t h R a v e n s w o o d Ave . Chicago 13 , 111. B o o t h N28

Samples of petroleum products, exhibits, and displays demonstrating usage and ad­vantages in working qualities. Depolar­ized petroleum solvents for D D T solutions for moth treating of fabric, petroleum dry cleaning solvent, industrial solvents from petroleum, and asphaltic specialties and paving asphalts.

IF. R e e v e Angel & C o . , I n c . B o o t h 112 52 D u a n e St . New York 7, Ν . Υ.

Whatman and Reeve Angel filter papers. Technical personnel will be present to ex­plain the qualities recommended for the analytical laboratory and industry.

Ansu l C h e m i c a l C o . B o o t h 11 M a r i n e t t e , W i s .

Fingertip control method of metering and applying AnsuPs industrial chemicals, sulfur dioxide and methyl chloride. The continuous method of preparing sulfur dioxide and water solutions of constant concentration.

At las P o w d e r Co. B o o t h 126 D e l a w a r e Trus t B l d g . W i l m i n g t o n 99, D e l .

Now chemicals for the cosmetics indus­try, textiles, paints and varnishes, plasti-cizers, and parasiticides, including Atlas Spans and Tweens, which are nonionic surface-active agents, as well a s many other new complex derivatives of the hcxatols, mannitol, and sorbitol.· Featured are the new Zapak package lacquer, Revo-lite plastic laundry roll cover material, and Kerazon reinforced plastic.

Barco M a n u f a c t u r i n g C o . B o o t h N20 1801 W e s t W i n n c m a c Ave . C h i c a g o 40, 111.

.Ball , swivel, and revolving joints for carrying pressure to movable or flexible lines, or to high-speed rotating drums or cylinders; Barco ball flange for correcting roll misalignment to eliminate excessive wear on revolving joint packings; illustra­t ive equipment.

B a r e c o Oil Co. B o o t h s 32-33 P . O. B o x 2009 T u l s a , Okla .

High melting # point microcrystalline waxes. A study o f the photomicrography of waxes with a pictorial display of their manufacturing process and uses. Litera­ture and samples available.

Barns tead St i l l & Steri l izer Co. , I n c . Forest Hi l l s B o s t o n 3 1 , M a s s . B o o t h 154

New advances in water purification in-clud:ug full automatic controls for Barn-stead automatic water stills and the i m ­proved fioatless water cutoff. Demineral­izing equipment with emphasis on double action models, utilizing the ion-exchange process. Portable water bath and purity meter. Consultation on water purification problems. B e m i s B r o . B a g Co . B o o t h s 3 7 - 3 8 408 P i n e S t . St . L o u i s 2 , M o .

Various types of bags with special emphasis on multiwall paper shipping sacks and waterproof paper-lined textile bags. T h e Br i s to l C o . B o o t h s N 5 3 - 5 4 Waterbury 9 1 , C o n n .

Complete Bristol continuous pH con­trol system, Bellows-differential flowmeter, Pyromaster time-temperature controller, and impulse-sequence cycle controller. Also a Bristol ranning-tinae recorder, recording ammeter, direct-reading humid­ity and temperature recorder, free-vane recording electronic thermometer control­ler, air-operated free-vane indicating ther­mometer, reset type free-vane air-operated controller, and autoset air-operated flow controller.

B r o w n I n s t r u m e n t C o . W a y n e a n d Robert s Aves . Ph i lade lph ia 44 , Pa. . B o o t h s N34-35

Modern industrial instruments: flow­meters, electronic instruments, recording control thermometers, the new adjustable indexet, pressure controllers, pneumatic transmitters and receivers, and other new and improved models.

B u e h l e r L t d . B o o t h N44 165 W e s t Wacker D r . C h i c a g o 1, 111.

N e w Buehler-Waisman electro-polisher for the electrolytic preparation of metal-* lographic specimens, representative items from sample preparation equipment, as well as metallurgical microscopes and other optical equipment for the «laboratory.

C h a m b e r l a i n E n g i n e e r i n g Corp. A k r o n , O h i o B o o t h 1 6 » w

Neolac protective coating for use in solving corrosive problems involving proc­ess equipment, structural steel, wood, or concrete.

2222 C H E M I C A L A N D E N G I N E E R I N G N E W S

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Alcoholic Liquors

Send today for this FREE Sperry booklet containing valuable data and charts on industrial filtration.

The quality c£ i ts basic materials is a vital matter to any industry. Equally important is t h e "quality" of its processing. That is w h y so many leaders in so m a n y types of industry select Spèrry Filter Presses. W h y they call upon Sperry t o design special equipment for their particular filtration require­ments. They know that"Fi l trat ion b y Sperry*'means the best filtration that science can achieve.

For over 50 years Sperry has been employing t h e finest engi­neer ing brains t o s tudy filtration problems. ΊΓο design and manufacture filter presses to meet all the steadily increasing and diversifying needs of industry. Whatever your filtration prob­lem, you can depend upon the experience and skil l of Sperry engineers to solve it·

Be sure to visit our BOOTH NO. 60

at the National Chemical Show

Coliseum, Chicago September 10-14,1946

Bottom Sat·» Jtoprosonfaffv· Henry E. Jacoby, M. E.

205 E. 42nd St., N e w York City 17, Ν . Υ. Phone: MUrray Hill 4-3581

D . R. S P E B R Y & C O M P A N Y , BATAVIA, ILUNOVS Filtration Engineers for Over 50 Years

RRY FILTER PRESSES

Wmsttnn Salmi ftoprosonfalfv*· B . M. PilhasHy

1033 Merchants Exchange Bide. Son Francisco 4, Cotif,

Rhone Do 0375

V O L U M E 24 , N O . 1 6 . . A U G U S T 25 , 1 9 4 6 2 2 »

ρ η Ε VIE η OF EXHIBITS*

Chicago P u m p Co. Booth 63 2300 Wolfram S t . Chicago 18, III.

A working model of the Chicago wiuV band air diffusion system, showing aera­tion, mixing, oxygenation, and flocculation for chemical and microbiological processes. Adaptations of the system will be shown by typical installations. Engineers and chemists will be on hand to solve waste treatment and pumping problems.

W. A. Cleary Corp. Booth 116 New Brunswick, N. J.

Developments in lecithin, organo-mer-fiirials, pyridine derivatives, quaternary ammonium compounds, colloidal iron salts, and fluorescent powders exhibited by Cleary Corp. and its subsidiary, Ameri­can Research Associates. Fungicides, antiseptics, and other products also dis­played.

Commercial So lvent»Corp . B o o t h 87 17 East 42 S t . New York 17, Ν . Υ.

Chemicals produced b y bacterial fer­mentation and chemical synthesis, includ­ing diisopropylamine, a new secondary amine used in the synthesis of such prod­ucts as textile specialties, detergents, inhib­

itors, dyes, and pharmaceuticals. Crys­talline penicillin C.S.C. Consumer prod­ucts.

Consol idated Products Co. , Inc.. 15 Park Row Booth Ν 4 New York 7, Ν. Υ .

How used machinery has helped the chemical industry save time and money shown in a series of photographic slides. Bchind-the-scene ' views of how Consoli­dated has for 30 years been putting idle machines and idle plants back to* work. Miniature models of processing machinery in operation.

The Container Co. B o o t h s 44-45 P. O. Box 310 Van Wert, Ohio

Fiber shipping drums with a variety of constructions and closures. Application of fiber drums to widely d ivert types of products demonstrated b y cutaway samples illustrating many new kinds of linings, coatings, and treatments.

Corning Glass Works Booth 72 Corning, Ν . Υ.

Selected items of laboratory ware and apparatus with particular emphasis on low actinic ware used in vitamin research, volu­metric ware, fritted ware for controlled filtration, ground joints (both sleeve and

ball and socket types), as well as special laboratory apparatus. Two special dem­onstrations of the extreme thermal resist­ance of Vycor brand 96% sil ica glass, and the performance of ground joints under vacuum.

Crol l -Reynolds Co. B o o t h 115 17 Johm St . N e w York 7 , Ν: Υ .

Exhibiting with de Beers: a special single-stage steam jet Evactor, made en­tirely of carbon, including a carbon steam nozzle. Photographs of multistage units of both standard and special materials, and of barometric condensers and vacuum cooling units.

I>arco Corp. B o o t h 126 Delaware T r u s t Bldg. W i l m i n g t o n 99, Bel.

Four supremacies o f Darco activated carbon, displayed by u s e of a tetrahedron. Demonstrations o f purity maintenance i n continuously used liquids, s u c h as dry cleaning solvents and electroplating solu­tions; concentration b y adsorption and elution, as in the manufacture o f penicillin and streptomycin; color, odor, and colloid removal, exemplified in purification of sugars, chemicals, water supplies, etc.; and of use as a catalyst and catalyst carrier.

Oavis E m e r g e n c y E q u i p m e n t Co . , I n c . 4 5 Halleck St . B o o t h 165 N e w a r k 4, N . J .

Complete gas analysis from 0 to 100% b y volume, both catalytic combustion and thermal conductivity methods .

T h e D a v i s o n C h e m i c a l C o r p . 2 0 Hopkins PI. Bootfas 64-65-66 B a l t i m o r e 3 , M d .

Scale model catalytic cracking unit con­structed of glass will demonstrate fluidized solid-vapor catalysis. Physical reversion of silica hydrogel from a highly hydrated semisolid to a plastic fluid m a s s will be shown; the application of s i l ica gel in the selective adsorption o f a specific compo­nent from solution, and the possible control of gel structure for specific application will be emphasized. Samples of various mate-, rials t o which silica g e l has b e e n added as an anticaking material.

F . . M . de B e e r s & A s s o c i a t e s 20 Nor th Wacker D r . B o o t h 115 Chicago, IU.

Exhibiting with Goslin-Birmingham Manufacturing Co. a n illumination of a five-body effect evaporator· Drawings, photographs, etc. , relating t o products.

Dis t i l lat ion P r o d u c t s , I n c . Booth 138 "-755 R i d g e R o a d W e s t Rochester 13, Ν . Υ ·

A large graph showing t h e operating range for vacuum gages, Tvith a gage mounted next t o the line illustrating its

Q U A L I T Y ^ PRODUCTION

H O W ? By F I L T E R I N G L I Q U I D S THE S P A R K L E R ''Horizontal Plate" W A Y

THEN—expect products of maxi­mum clarity, brilliance and purity at low cost.

Sparkler Filters, with built- in Pat­ented Scavenger Plate, provide— Fast Flow Rates. ~ Uniform cake; ample freeboard for run-off of filtrate.

Long Cycles. Cake stability even during intermittent operation.

Complete Batch Filtration. Cakes may be blown d r y — n o unfiltered residue.

Easy Cleaning. N o cloths to wash. Low Operating Cost.

SPARKLER MFG. COMPANY 249 Lake Street, M U N D E L E I N , I L L I N O I S

2 2 2 4 C H E M I C A L A N D Ε Ν G I Ν Ε Ε R I h i G N E W S

range. Several diffusion pumps and high vacuum valves, with large photographs of completed units using these component parts. A 10-inch basic laboratory vacuum system, illustrating the simplest and cheap­est unit that can be purchased for labora­tory work.

The Dow Chemical Co. 1160 East Main St. Midland, Mich. Booths 51-52-53-54

Uses of 500-odd chemicals in the steel petroleum, lumber, agricultural, pharma­ceutical, rubber, textile, photographic, and other industries will be pictorially illus­trated by a series of slowly revolving drums and supplementary screen projections of 200 photographs, with accompanying de­scriptive talks. Review of latest develop­ments in the production of magnesium, plastics, and agricultural chemicals.

Durametallic Corp. Booth 119 2104 Factory St. Kalamazoo 24F, Mich.

Functions and applications of Durame­tallic packings and mechanical sealing de­vices illustrated, including rotary mechani­cal Dura Seal. Flexible-handled tools high-lighted. Packing engineers will dis­cuss sealing problems.

Emery-Carpenter Container Co· 4600 Carew Tower Booth 97 Cincinnati» Ohio

Four types of fiber drums displayed, two for export and domestic shipments of dry and semisolid iraterials, and two for a large variety of dry, food, and chemical materials, all designed for loads up to 400 lb. Industrial waste and roving cans m various sizes, the largest 21 inches in di­ameter and 40 inches in height.

Eppenbacn, Inc. Booth N17. 45-10 Vernon Blvd. Long Island City 1» Ν. Υ.

The Eppenbach colloid mill for treat­ment of heavy pastes and semiplastics, and homo-mixer, «adapted to pigment de-docculation and continuous self-pumping operation, are both shown for the first time. Special attention to difficult mix­ing problems and Irv <gn of new equipment.

Eutectic Weltiiia*» AÎÎOVS Corp. 40 Worth St . ' Booth 50 New York 13, Ν· Υ.

Parts welded with low-temperature welding alloys and fluxes. Continuous demonstrations of the company's prod­ucts; capillary action of low-temperature welding rods.

Fansteel Metallurgical Corp. 2200 Sheridan Rd. Booth 79 North Chicago» 111.

A complete, full-scale gluten hydrolyz-ing plant; the digester, vapor column, acid receivers, and acid pipes and valves are constructed of Haveg.

CHICAGO AIR DIFFUSION SYSTEMS

fox CHEMICAL AND

MICROBIOLOGICAL PROCESSES

AERATION MIXING

OXYGENATION FLOCCULATION

Chicago Wide Band of fine bubbles gives maximum con· tact volume with least power.

Chicago Wide Band Air Difcfusion System in­stalled i n a round tank to eifect circulation

up the outside and down the center.

Chicago Wide Band Air Diffusion System installed in a round tank to effect the maximum amount of oxygenation and

mixing*

Chicago Wide Band Air Diffusion Systems produce maximum fineness of air bubbles with .greatest contact volume of diffu­sion -without coalescence. They can be adapted to any size and shape of tank to accomplish the desired maximum effi­ciency results. Installation can b e stationary or removable for simple inspection and cleaning.

·"? Chicago W i d e b a n d Air Diffusion Systems are based on ten years experience in oxygenation and mixing in aerobic proc­ess plants. WeThave placed hundreds of plants in successful operation.

We welcome your inquiry and offer our services to co­ordinate our efforts with your Research and Engineering Departments.

S A N I T A R Y A N D C H E M I C A L E N G I N E E R I N G D I V I S I O N

2318 WOLFRAM STREET

E L E C T R I C PUMPS: Circulating;, Scru - Peller, Flush - KJeen, Plunger» Bilge, Fire, House, Condensation.

CHICAGO 1 8 , I L L I N O I S

MIXERS, AGITATORS, AERATORS: Swing* and Stationary Wide Band, Mechanical, Mixer - Clarifier Unit.

V O L U M E 2 4, N O . 16 » . A U G U S T 2 5, 1 9 4 6 2225

CHICAGO PUMP COMPANY

PREVIEW OF EXHIBITS

First M a c h i n e r y Corp» Boot^h N6· . 157 H u d s o n S t . N e w York 13, Ν . Y .

A new vacuum filler, and several other items of equipment. Eagincers in charge to give complete information o n all types of equipment for the processing industrics.

Fisher Governor C o . Booth 7 M a r s h a l l t o w n , Iowa

Different types of pressure regulators, diaphragm motor valves, and liquid, level controllers.

Fisher Sc ient i f i c C o . B o o t h 78 711-723 F o r b e s S t · P i t t s b u r g h , P a .

Scientific instruments and laboratory furniture featured b y Fisher a n d Eimer <fc Amend. The Ultra-Sonorator, a super­sonic generator, will be the principal new equipment. Other items include the Fisher Titrimeter,electrophotometer, Elcc-dropode, and unitized laboratory furni­ture.

F o o t e M i n e r a l C o . B o o t h s 159-16© 10 East C h e l t e n Ave . Ph i lade lph ia 44, Pa .

Lithium and strontium chemicals, aaci Zirmct (Foote ductile zirconium) i n wire, sheet a n d rod forms. Production o f Zir-met from, the ore, through pyrolysis, t o cold rolling of sheet will b e shown.

Genera l C e r a m i c s a n d Steat i te Corp. Crows M ill R d . Boo>*h 11-4 K e a s b e y , N. J .

High fired porcelain chemical procès» equipment, including a porcelain toweir, kettle, cylindrical vessel, a porcelains pump, and miscellaneous pipe and fittings a s well as porcelain electrolytic diapbtragms. Drawings and descriptive mattsr avail­able.

G l a s c o t e P r o d u c t s , I n c . Booth ΤΊ 20900 S t . Clair Ave . C leve land 17» Ohio

Small stainless steel reaction kettle for experimental "work in chemical and phar­maceutical laboratories and semipilo*-plant work production. A glass-lined re ­actor a n d a cutaway section of an stgitator stuffing box.

Glyco P r o d u c t s C o . , I n c . 3 0 Nort l i Dearborn S t . C h i c a g o 2, 111. Booths £22*123

Chemical specialties including emulsi-fiers, nonionic emulsifiers, synthetic waxes, water-soluble resins, plasticizers, esters, flameproofing agents, glyceryl moxxosteax-ate , wetting agents , defoaming agents aod special emulsions. Technical personniel will to discuss specific applications.

" M M *

G o s l i n - B i r m i n g h a m Mfg. Co , B i r m i n g h a m , Ala . Booth 115

Exhibiting with de Beers. Information o n Valiez pressure filters, ro tary dram vacuum, filters, sugar house machinery.

2226 C H E M I C A L A N D E N G I N E E R I N G M E W S

(3IL& B>as*B ̂ Q Q

P Y R E X brand Glass Pipe will wi thstand operat­i n g temperatures as high as 250° F and tempera­t u r e s up to 400° F can be considered. Further­m o r e , P Y R E X brand glass has remarkable ability t o withstand sudden temperature changes.

Its resistance to thermal sheck makes it possible t o flush Pyrex Pipe Lines with live steam immed­i a t e ly followed by cold water—a procedure often followed as a cleaning process. I t is one of many reasons which make PYREX Pipe praclical plant equipment.

It is t h e only pipe t h a t possesses the combined a d v a n t a g e s of corrosion resistance, visibility and p u r i t y maintenance. I t s sturdiness and service­ab i l i t y have been thoroughly proved by miles of p ipe lines tha t have been in plant service f o r manv vears. You can install it with confidence.

CAN'T ^ « * #

Pyrex Pipe Characteristics VISIBILITY. T h e crystal clear transparency of P Y R E X P i p e permits visual inspect ion o f every fo.ot o f your p i p e l ine a t any t ime. T h i s feature serves to forewarn you o f unexpected trouble in y o u r pipe l ines. MAINTAINING PRODUCT PURITY. P Y R E X Pipe is resistant t o a l l ac ids (except U.K.) and moderate a lkal i s . T h e r e is n o h e a v y metal p ick-up or danger of metal l ic c o n t a m i n a t i o n . P Y R E X Pipe lines assure the u l t i m a t e in o b t a i n i n g product purity . EASE OF INSTALLATION. Your o w n m e n c a n instal l a P Y R E X Glass P ipe Line. N o special tools or special training are required. T h e Pipe, the fittings and tin» hardware come to your ins ta l l a t ion point ready for assembly . Stock adaptor flanges are avai lable to connect P Y R E X Pipe to metal p ipe and other p lant equ ipment .

SIZES AND FITTINGS. P Y R E X O l a s s Pipe is now avai lable in 1", I K > \ 2". :i", a n d 1". Λ c o m p l e t e line of s t a n d a r d P Y R E X fittings includes el ls , tees , return bends, laterals and reducers. Spec ia l fittings can be readily m a d e to your specif ications.

Standard fittings and a d a p t o r c o n n e c t i o n s are avai lable to c o n n e c t P Y R E X Pipe t o your present equipment . .

LOW COST. T h e initial cost of P Y R E X P i p e (accessories included) i s about the s a m e or less than the cost o f full w e i g h t copper or brass piping in c o m ­parable sizes, a n d is cons iderably less than the cost of most, other corrosion resistant a l loys . Whether you figure cos ts of new equipment in terms of initial out lay o r in terms of overal l cos t s—spread over the length of service it will g ive y o u — P Y R E X Pipe i s your bes t bet .

OPERATING PRESSURES. Most in s ta l l a t ions operate at pressures u p to 50 p.s . i .—but pressures a s high as 1O0 p.s.i . c a n be considered.

Corning Engineers will gladly furnish y o u with c o m p l e t e details. Wri te to Industrial Sa les Department CPZ-8.

CORNING GLASS WORKS CORNING, NEW YORK

ζ ^ - - * ^ INDUSTRIAL SALKS DEPT.. ClS-8 Corning Glass Works, Corning, New York

Pieuse send me IA-l " PYREX Pi ΡΕ" for the Process ία-d u s i r j

Name Title

Kirni

Address .

/ ' Η Ε V Ι Ε II Ο Ε Ε Χ Η Ι Β Ι Τ S

G rood Mfg. i:o. Booths N21-22 4535 "West Armitagc Ave. Chicago 39, 111.

Stainless .steel stcnin-jacketrd kettles with special tangent draw-off ami latest drip t r a p cover; table type tilting kettles; stainless kettles w *th motor-driven agi­tators; electric and gas stainless steel steam generating kettles. Covering liter­ature».

Hasco Valve and M a c h i n e Co. 1819 West S t . Paul Ave. Booth 80 Milwaukee 3 , Wis·

Type 316 stainless steel, .several grades of Hastclloy, pure nickel, Monel, Inconel, and aluminum valves and fittings. Also hydro-heaters for hot water heating, which can b e furnished in the various alloys for acid Heating.

Haveg Corp. Booth 94 1201 Paltnolivc B l d g . Chioago 11, III.

Materials of construction consisting of various types of synthetic resins, com­bined with asbestos or graphite, and proc­ess plant equipment, including process tanks, agitators,pipe, fittings, valves, fume ducts, etc. Plastic material Haveg grade 60, a m adaptation of the Furane type of

resins, to the molding of large-scale plant equipment.

I lay n e s Ste l l i te Co . B o o t h s 81-82 30 East 42 S t . New York 17, Ν . Υ .

Hastclloy nickel-base alloys, and the new precision sting process for produc­ing parts from Hastelloy and other high-temperature alloys as well as Haynes Stellite, Hascrome, and Hastelloy, and various stainless steels.

Heil Process E q u i p m e n t Corp. 12901 Elmwood Ave. B o o t h N23 Cleveland 11, Ohio

Tank linings including synthetic rub­ber, Koroseal, thermoplastic, lead, ce­ramic, carbon brick, and special metals.

The Hill iard Corp. B o o t h N45 102 W e s t Four th St . Elmira, Ν . Υ .

Filters for lube, industrial, and fuel oils, coolants, solvents. Purifying.equip­ment for filtration and vacuum dehydra­tion and deacration of dielectric and in­sulating oils, vacuum pump sealing oils, turbine oils, hydraulic oils, compressor oils. Filtering materials for straight min­

eral, compounded, and synthetic oils, samples of various oils before and after purification.

I l l inois Water T r e a t m e n t Co. 840 Cedar St . * B o o t h 2 9 Rockford, 111.

Three new model de-ionizers—the N L 1 2 portable model, and the LU-10 and LU-11 models. An Illeo-Way 350-gallon per hour de-ionizer. Also illustrations.

J e n s e n Mach inery Co., Inc . Ne l son S t · at L o c u s t Ave. B o o t h 105 Bloomfield, N . J .

The Jensen industrial chilled water unit in which water can be cooled to 32° with.-^ out freezing on. A stainless steel section which has beei.· cut away shows this pat­ented feature.

T h e J o h n s o n Corp . Booths 35-36 805 Wood St . Three Rivers, Mich..

A working demonstrator showing t h e application of the Johnson rotary pres­sure joint to a rotating cylinder. Models of compressed air and steam separators, compressed air aftercoolers, the Johnson instant steam water heater, automatic boiler water level control, pressure equal­izing boiler feed pump, and the Electra.

O. G. Kelley & C o . B o o t h N37 98 Taylor St . Boston 22 , Mass .

Acid-resisting lead valves from z/4 u> lf>-inch size, in free-flow, gate, and angle type. Acid-resisting pumps from 1 / 2 to 6 -inch size in all lead construction. Stainless steel, bronze, aluminum, and other alloy pumps in sizes from l / 2 to 3 inches. Lead castings, lead burning construction, lead coils, and lead lined tanks also featured.

W. II. Kessel & C o . . Boo th N2«* 510 N o r t h Dearborn St . Chicago 10, III.

Instruments and laboratory apparatus such as the Gamma automatic pH meter», new developments in photomicrograph^ equipment, refractometers, and other o p ­tical instruments. A new apparatus for rapid carbon determinations, the Lindner?: carbon determinator.

Kieley a n d Muel l er , Inc . Booth 155 2033 43rd St . North Bergen, N . J .

Kontrol-motor diaphragm valves, prt?&-surc regulators, and pump governors: the Kontrol master pressure pilot and liquid level pilot.

Kmible Glass Go . Booths 133-134 Vineland,*N. J .

Laboratory glassware and apparatus, notably a comprehensive line of laboratory hydrometers and thermometers.

FOR GUe4nioai ^*uU(f4M •N

Through the asurernent of

TRANSMISSION. REFLECTION. ' TURBIDITY FLUORESCENCE

PHOTOELECTRIC

uuri^01 C0l0aR

nrTtR F L U O R E S C E N C E METER

/TSigh J CHEMICAL ANALYSIS: by trans-précision 1 mission in the visible and ultra

k Instrument of \ violet range. UNUSUAL^ JviTAMIN D E T E R M I N A T I O N : by

fluorescence (Vitamins Bi and B̂ )» COLOR MEASUREMENTS: os? liq­uids, s o l i d s , p o w d e r s , <p€5S$esr

paper, fabrics, lacquers, paints, and many other materials»

V.

S C H A A R & COMPANY Complète, Laboratory Equipment

7 4 8 W . LEXINGTON STREET CHICAGO 7

2228 C H E M I C A L A N D E N G I N E E R I N G N E W S

Laboratory Furniture Co., Inc. 37-18 Northern Blvd. Booth 20 Long Island City 1, Ν. Υ.

An industrial assembly oi modern design including a practical, cnclosed-type fume hood which incorporates adjustable damp­ers in the baffle and metal enclosure; wall bench including a sink and standard units with drawers and cupboards; serv­ice cack structure to which are attached the various pipe lines, and a reagent bot­tle shelf. Also modern glassware storage cabinet.

Leeds & Northrup Co» 4901 Stenton Ave. Booths 156-157-150 Philadelphia 44, Pa.

The Micromax recorder with accessory equipment, Speedomax high-speed record­ers, and a 50-point temperature indicator. The simplified Eloot.romax controller also displajrcd.

Los Angeles JDept. of Water and I'troer 207 South Broadway Booth N55 Los Angeles 54, Calif.

Photographs, booklets, and information service on the chemical industry in the Los Angeles area. Two engineers in attend­ance to answer questions.

Mallinckrodt Chemical Works St. Louis 7, Mo. BoothlO

Metallic soaps such as aluminum stéar­ate and zinc stéarate; Pyridosc, a control for paper mill slimes; organic chemicals devloped from the aikyl carbonate synthe­sis; and uranium compounds and ura­nium metal produced for the Manhattan District.

Marco Co., Inc. Booth N58 53 West Jackson Blvd. Chicago 4, 111.

Models of Flow-Master pumps, homo­genizes, and Kom-Bi-Nators, and Sani-Seal sanitary pipe couplings, all designed to apply a new principle of continuous proc­essing to many operations in the chemical industries. Automatic wear control de­vice and other features.

The Master Package Corp. Owen, Wis. Booth 104

Fiber drums and pails of various types, for the packaging of chemicals, food prod­ucts, dry paints, etc. Special coatings, interior and exterior, for specific purposes.

The Matheson Co., Inc. Booth 166 Richards St. & Manhattan Rd. P. O. Box 966 Joliet, 111.

Various types and sizes of cylinders con­taining rare and common compressed gases. Reducing valves, nonautomatic needle valve controls, with and without tank gages, adapters, and hose connections for use with compressed gas cylinders.

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T h e Cenco-Hangosky Elec-tropolisher is designed for the rapid electrolytic polishing and etching of metal speci­m e n s for microscopic exami­nat ion.

Plain carbon and low alloy steels , stainless steels and a large number of the non-fer­rous meta l s and alloys of m a n y types may be prepared for microscopic examination i n a matter of minutes .

T h e spec imen i s prepared i n the usual manner carrying through to a 00 or 000 paper and then within one minute given an electrolytic polish and etch.

T h e apparatus i s self-contained, all t h e required controls for electrolyte, current and t i m e being built into the un i t . A wide selection in current a n d t ime is available for both pol ishing and etching.

T h e apparatus operates on 115/230 volt, 60 cycle supply.

Visit our Booth No. 71 National Chemical Exposition

Chicago Coliseum

CENTRAL SCIENTIFIC COMPANY ScUntifcc C 0 j ( p 4ppt

N e w York BOSTON San Francisco C H I C A G O Loi Angeles TORONTO Montrée

V O L U M E 2 4, N O . 1 6 A U G U S T 2 5, 1 9 4 6 9229

PREVIEW OF E K l l i m i T S

The M c l n t y r e C o . B o o t h 13-11 15 Kiverclale Ave. New t o o 58, M a s s .

Six series of hydraulic and air pumps and three series of fluid motors; working hydraulic systems incorporating hydraulic pumps and motors, with working pump displays showing pump metering, propor­tioning, and transferring.

* Mine S a f e t y Appl iances Co . Braddock, T h o m a s , a n d M e a d e Sts. Pi t tsburgh, Pa. B o o t h N l

The Chemox, oxygen breathing appa­ratus which is self-generating; dust and fume respirators with soft-rubber face-piece; other standard items of safety équipaient including gas masks, inhalators, instruments for the detection and deter­mination of toxic and explosive gases, dust sampling instruments, protective creams and lotions for the skin, Skullgards, goggles, protective clothing, and first aid materials.

Miskella Infra-Red C o . B o o t h N30 East 73rd a n d Grand Ave. Cleveland 4 , O h i o

Various types of infrared equipment, including insulated panels and a stainless steel vibrator trough in operation with plastic powder.

Other sectional units, including ellipti­cal, angular, and 1000-watt heat.

. Moore Products Co. B o o t h 137 H & L y c o m i n g S t s . Phi lade lphia 24, Pa.

Nullmatic controller for flow tempera­ture, etc.; the Nullmatic thermometer to be used as a primary element on a minia­ture controlled process; differential pres­sure transmitter; self-contained flow con­troller; Nullmatic liquid level gage; con­stant differential relay; liquid level con­troller (flexible shaft type); valve posi­tioner; and Nullmatic regulator—all equipment will operate on miniature processes or on typical test room proce­dures.

The M o t o - T r u c Co. B o o t h N8 1953 East 59th S t . Cleveland 3 , O h i o

Platform trucks, pallet trucks and high-lift trucks for handling and stacking pal­lets. New line of 12-volt machines.

National A l t t m i n a t e Corp. · B o o t h 136 6216 Wes t 66 Place Chicago 3 8 , 111.

Nalco method of stabilization of water, information on all types of water treat­ment.

National C a r b o n C o . , I n c . 30 E a s t 4 2 n d S t . B o o t h 85-86 Nevir York 17, Ν . Υ .

Equipment for absorption-stripping operations constructed of standard carbon, graphite, and Karbate products, to demon­

strate t h e application of standard towers, raschig rings, cefescadc cooler, 7-tube heat exchanger, cerattri f ugal pumps, globe valves, flexible crouplings, slotted couplers, and pipe arid fittings. Two types of standard Karbate plate heaters; Karbate bayonet and sluullow tank heat exchangers, typical Karbate* tube sheet construction, a demooslra/tioai of type FC Karbate coupling, and a number of porous carbon diffusers.

Na.tion.ad Tochanical Laboratories 820 Mission S t . B o o t h N 4 1 S o u t h I^asadeena,. Calif.

Beckman pxH ^instruments for indicating, recording, and controlling, including a n e w portable a.c.-operated pH meter; quartz spectrophotometers, with new ac­cessories for flucorescence, diffuse reflect­ance, and flanmc photometry measure­ments; model 1R.-2 infrared spectropho­tometer^ with -new accessories for auto­matic scannungg and recording; a . c -operated rapid titrator; portable self-calibrating e lectronic micromicroammeter a n d leakage resistance tester.

N e w Jexney Msacl i inc Corp. Wi l low Ave. at* 16th S t . B o o t h N 4 8 l l o h o k e n , M . J T

DemoiislralicDn of machine for labeling bottles, jars„ boxes , and containers, which incorporates tli«e feature of "dry" labeling, a method ^vluâch eliminates glue, glue rolls, etc.,and ^svatcr ordinarily required.

O r o n i t e Cl*ensiical C o . B o o t h Ν 9 R-uss Blclg. S a n Fr-stncâscoD I* Calif.

Display bott-les of Oroni te products and a n aiiimnle*d display featuring Oronite polybu tones,

T h e PCitiHllcr- Co. B o o t h 1 3 9 Eas*Av«. Rochester 4 , IN. Y.

Both glass—lined and stainless steel kettle cqudprancnt, including complete pilot-plant dis t i l lat ion assembly, large and small glass—lins«d and stainless steel reac­tors, and srtai^nless steel heat exchangers a n d condenseurs. Operating model de­signed for d i s p l a y of varying combinations o f agitaliocE ira conjunction with bailie as ­semblies,

RapidiS-St-aii*dard C o . , Inc. 3 0 8 Peoples SNat iona l Bank B ldg . Ο r a n d RajpicHs 2 , M i c h .

Booths N 1 8 - N 3 3 Rapid-wifaeel gravity conveyor coupled

with Stcvedoere, Jr., power belt conveyor; rapid-rollc*: s^ l id roller gravity conveyor for medium laveight duty; power booster power befct «conveyor for portable use; rapid-uareie haardened casters; models of Wheel-fay h=and truck; the Press-Veyor belt conveyer designed for stamping rooms; antd tshe warehouse floor truck.

R a y m o n d Pulver izer Divis ion C o m b u s t i o n Engineer ing Co. , I n c . 1319 N o r t h B r a n c h S t . B o o t h s 73-74 C h i c a g o 22, 111.

Vertical mill , a newly developed design, adapted for superfine grinding of materials such as graphite, dry colors, and talc; roller mill with whizzer separator for wide range fineness classification; and a com­bination setup of laboratory equipment, including the standard steel laboratory mill and separator.

Ross & R o w e , I n o . B o o t h 4 8 75 Varick S t . N e w York 1 3 , Ν. Ύ.

Various functional purposes of soybean lecithin, with a l isting of products and processes which c a n utilize these functions t o good advantage. Display of various grades of soybean lecithin.

M i l t o n Roy Co. B o o t h 5 1300 M e r m a i d A v e . C h e s t n u t Hil l , P h i l a d e l p h i a 1 8 , Pa.

Controlled-volume chemical pumps with electronic controls for application t o automatic chemical feed systems, auto­matic proportioning and automatic p H control.

E . H . Sargent & Co. B o o t h 3 1 155-165 E a s t Super ior S t . C h i c a g o 1 1 , III.

Demonstration of potentiometric pen chart and the visual deflection photo­graphic recording polarographs. T h e Siomin electrolytic analyzer with new type platinum electrodes. Constant-temperature bath apparatus, pH meters, stirring motors, balances, burners, fur­naces, and other chemical' laboratory equipment and supplies.

C l a u d e B. S c h n e i b l e Co. B o o t h N 5 P. O . Box 502, R o o s e v e l t A n n e x D e t r o i t 3 2 , M i d i .

Operating Multi-Wash collector unit, with transparent shell, used in the chemical industry for the removal of dust, fumes, or obnoxious gases from an air stream, to eliminate nuisance, or recover valuable materials, or as liquid-gas. contact towers; and operating Velocitrap, illustrating method of dry separation of heavier dusts from an air stream for recovery purposes. Large installation photographs.

Scientif ic C l a s s Apparatus C o . , I n c . 46 A c k e r m a o S t . B o o t h 76 B loomf ie ld , N. J .

Gyco heating jackets, in which con­struction and position of the heating ele­ment provide a major innovation; and Pyro-tran, combination transformer ancl*** pyrometer. T h e Moisturimeter, an all-glass closed-system assembly for moisture determinations using Karl Fischer re­agent; special amber-colored Pyrex glass­ware for light-sensitive materials; and

2230 C H E M I C A L A N D E N G I N E E R I N G N E W S

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Here are t h e sales offices of CSC—staffed with experienced sales representatives.

H e r e are t h e warehouses of CSC—largely empty.

H o w long i t will be before some of our needed raw materials become available t o us again in sufficient quantities . . . t o stock our warehouses . „ . to fill your orders . . · we don't know» today. But as soon as conditions permit, we fciave all the tracks laid to serve you fast . . . and we promise t h a t you -will know about it.

E v e n though this is the situation for now, CSC service is as available as ever. If our Sales Department and our Technical Service Division can help you plan for future processes or products, they would like to have the opportunity. C O M M E R C I A L S O L V E N T S

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V O L U M E 2 4, N O . 1 6 . · A U G U S T 2 5, 1 9 4 6 2231

PREVIEW OF EXHIBITS=

various examples of special glass labora­tory setups. Joseph. E. Seagram & Sons , I n c . 7 t h Street R d . Booth 49 Louisville 1 , Ky.

A continuous process distillery unit in operation, making 95% ethyl alcohol, with explanation by visual means on changing panels arid drawings, to illustrate research done b y the company on fuel alcohol. Some by-products of alcohol manufacture, including human food products.

Selas Corp· of America Booth 88 Erie Ave. a n d D S t . Phi ladelphia 34, P a .

Micro-porous filter media, as applied to * industrial processes and laboratory tech­niques, in display with typical laboratory setups; and the Selascparator, for com­plete phase separation of immiscible liq­uids. Photographs of applications of improved heat processing for both batch and continuous heat treatment.

S impl ic i ty Engineer ing Co. Durand, Mich · Booth 75

A 2 X 4 foot two-tray, high-speed vibrating screen built of stainless steel to meet all sanitary code requirements, for fine screening and dewatering in the chemi­cal and food processing industries.

A. O. S m i t h Corp. Booth 30 3533 N o r t h 27th S t . Mi lwaukee 1, Wis.

Motion-diorama display of variety of lined and unlincd pressure vess» equip­ment.

L. Sonneborn Sons , Inc . Booth N43 88 Lexington Ave. New York 16, Ν. Υ .

Line of petroleum sulfonates with indus­trial applications in the emulsification and dispersion of liquids, dispersion and wet­ting of solids, wetting and dispersion of liquid-solid systems, and inhibition of rust and corrosion. Petronate, oil-soluble petroleum sulfonate, in three molecular weights—high, medium, and low; and water-soluble petroleum sulfonate Hydro-nate 30. Samples of wliite mineral oils— U.S.P. and Technical—as well as U.S.P. petrolatums and various petroleum spe­cialties for general and specific industrial uses.

Taylor I n s t r u m e n t Cos. P. O. Box 110 B o o t h s 143-144 Rochester 1, Ν. Υ.

Fulscope line of air-operated instru­ments, with a complete instrument mounted and shown with various com­ponents which may be added to adapt i1

to varying functions. N*ew liquid level transmitter.

Titeflex, Inc. Booths 99-100 500 Fre l inghuysen Ave. Newark 5, N. J .

High-polish filter with rigid, synthetic membrane in combination with commer­cial filter aids for high flow rates in propor-' tion to filtration area. For heavy vacuum, drum-type filtration, the Titeflex-Wright cord filter, utilizing two layers of cord for continuous self-cleaning, nonclogging fil­tration.

* Tri-Clover M a c h i n e Co* Booth 12 2809 6 0 t h St. K e n o s h a , Wis.

Sample display of stainless steel flanged type conical end fittings, inc^ding typical line and fitting connections as made with the leak-tight flanged coupling; and stainless steel welding fittings. Several pump models and demonstration of the newly designed impeller. Superspeed tools for installing and maintaining stain­less steel liquid Unes.

T r i m o u n t I n s t r u m e n t Co. 37 West Van B u r e n S t . Booth N31 C h i c a g o 5, 111.

Oathodic protection for overhead stor­age tanks and deep well pumps. Elec­tronic level controls, tank level gages for showing levels, liquids i n tanks. Flow­meters, manometers, and accessories, such as are used in the chemical plants.

U . S. S toneware Co. Booth 61-62 Akron 9, Ohio

A wide range of -corrosion-resistant equipment and construction materials in­cluding: drum tumbling unit designed for mixing powders or solutions; laboratory jar mills to handle quart, half-gallon, or gallon containers; Tygon tank linings, Tygon flexible tubing, and Tygon protec­tive coating; rubber, acid brick and tile, sheet and homogeneous lead tank linings; baked-on hard coatings of both the phe­nolic and furane types; chemical stone­ware suction filters with the Filterstone porous aller plate; chemical stoneware pots, tanks, crocks, pipe, and fittings; tower packings; laboratory equipment and supplies; quick setting, chemical-hardening acid- . and/or alkali-proof ce­ments; and molded Tygon and rubber chemical plant items.

Vels icol Corp. Booth N56 120 E a s t P e a r s o n St» Chicago 11, 111.

Velsicol 1068 inseot toxicant, technical grade of 90% purity, and Velsicol 1068, 20% concentration, each 100 ml. of which contain 20 grams of Ct*HeCls in deodorized kerosene, with animated display. Samples of Velsicol hydrocarbon resins and resin solutions including Velsicol AD 6-3, AB

2232 C H E M I C A L A N D E N G I N E E R I N G N E W S

11-4, and AF-3; wood and metal panels representing air-dry and bake finishes coated with protective films, with resin components. Samples of Coresin oils; Samples of aromatic petroleum of high solvency. in a wide variety of boiling ranges.

Victor C h e m i c a l Works 141 West Jackson Blvd . C h i c a g o 4, 111. B o o t h s 41-42-43

Scale models of operations and processes in the food, baking, petroleum, soap, metal treatment, pharmaceutical, fireproofing, and textile industries. Pictorial display of end consumer uses of their products.

West Virg in ia P u l p a n d Paper Co. Industr ia l C h e m i c a l Sales Divis ion 35 East Wacker Dr . B o o t h 8 Chicago 1, 111.

Nuchar activated carbon, Snow Top precipitated calcium carbonate, and tall oil products—Liqro, Indusoil, Tallex, and Tallene. Four new products: terpenes, sulfate wood turpentine, α-pinene, β-pinene, dipentene, pine oil, and tar oil with various products of the consuming industries; Indulin, lignin from pine wood with products incorporating the material; Polycel, cellulose fibers win be shown with illustrations of uses in filtration, flocking, etc.; and Pex, special processed precipi­tated calcium carbonate.

Whee lco I n s t r u m e n t s Co. B o o t h N15 847 West Harrison S t . Chicago 7, 111.

Electronic liquid level controller de­signed for process plant use in an operating display t o include a tank filled with oil and water in which a single probe pickup unit will sense the interface of the oil and water, while controlling the water level at a set minimum; a second tank filled with water utilizing a gage glass pickup to maintain a set level of water being ipumped into the tank; and a third tank containing water utilizing a double probe sensing unit to achieve a set level during a continuous flow of liquid to and from the tank; with a Wheelco Throttltrol con­trolling the input valve.

I n c . B o o t h N38

W i n t h r o p Chemica l Co., 170 Varick S t . N e w York 13, Ν . Υ .

Roccal, a quaternary ammonium sani­tizing agent; new synthetic amino acids; various synthetic intermediates; and, shown for the first time, acetyl-rfZ-trypto-phane, 4-aminoantipyrine, ethylacet-amidomalonate, 3,5-dibromoaniline, and 1-desoxyephedrine.

Yarnal l -Waring Co . B o o t h ΝΊ6 C h e s t n u t Hil l Phi ladelphia 18, P a .

A set of Yar> y impulse steam traps, with the film, "Making Steam Trap His­tory", narration by Lowell Thomas; fine-screen strainers; involute spray nozzles; and the remote liquid level indicator.

"**£**& ***** A new efficiency and economy-a sturdy production unit. Specially featured:

-every model

Hupper t F u r n a c e s are a v a i l a b l e in any size from an Π) of 3 y X 3 ' X 3 ' to large floor model produc­tion units and to satisfy prac­tically any heat requirement u p to 2,30O°F.—with auto­matic or manual control.

• Huppert's own method of multi-insulation. • Low heat loss. • Low current consumption. • Low initial investment. • Low operating cost. • Sturdy steel construction.

Huppert A s P o r t a b l e P y r o m e t e r is also a new development and offers many features departing from the conventional. Weighs only 1 % pounds! Duo scale range! Accuracy to 2% of scale.

\ If You Do Not A t t e n d — send for complete information on the complete Huppert l i n e .

Κ. Η. HUPPERT CO. % 6878 Cottage Grove Avenue Chicago 37, Illinois

At the 1946 National Chemical Expo­

sition-Chicago Coliseum — Sept· 10-14!

Designed for use with Lindberg Com­bustion Tube Furnace, this new ^alumet-ric Type Carbon Determînator is fast and accurate. And it is easily and quickly adapted for operation with any standard high-temper­ature combustion tube furnace.

Visit the Exposition Booths of the Lab­oratory Equipment Dealers listed . . . or see your local dealer for full informa­tion and prices.

Exhibitor Buehler, Ltd. Chicago Apparatus Co. W. H. Kessel & Co. Arthur S. LaPine & Co. E. K. Sargent & Co. Schoar & Co. W. M . Welch Mfg. Co. Wilkens-A riders on Co.

Booth N o .

135 N-29

125 3 1 2 1 4 6

111

Dealers can give you complete informa­tion or» the Lindberg Royal Family of Laboratory Furnaces which includes Box, Pot Crucible and Combustion Tube Fur­naces . . . and Laboratory Hot Plates.

LiMDBERG L I N D B E R G E N G I N E E R I N G C O M P A N Y 2450 We»! Hubbard Street, Chicago 12, Illinois

S O L D E X C L U S I V E L Y T H R O U G H L A B O R A T O R Y E Q U I P M E N T D E A L E R S

V O L U M E 2 4, N O . 1 6 A U G U S T 2 5, 1 9 4 6 2233