SLY PIONEERS AND LEADERS IN
DUST CONTROL
Sly Dust Filter—the heart of the Sly Dust Control System.
I N manufacturing grinding wheels, illustrated below, penetrating dust is created. But—the men don't breathe it. It is drawn into hoods at the machines, then through flexible tubes t o the Sly Dust Filter shown above, which filters —by cloth—all of the dust from the air, even the dust so fine you can't see if. This is but one instance of thousands where industry uses Sly Dust Collectors to improve working conditions, eliminate health hazards, prolong the life of machinery, reduce cleaning and
rtecv £,auciwte*tt For further i n f o r m a t i o n on any item mentioned here, fill out coupon on p . 2725.
Rotary
Warburg
The American Instrument Co., Inc., has announced its rotary Warburg apparatus with pivotal shaking action. This pivotal shaking feature makes it possible for manometers to be read more easily and accurately while in motion. Manometer legs move radially, in a horizontal plane, about an axis centered between them; thus each manometer leg moves in a direction opposite to the other, causing inertia effects to be balanced and eliminating fluctuations of the liquid columns. The lateral movement of the manometer, as seen by the operator, is said to be only 0.25 mm. at maximum Mask travel. Thorough agitation of the flask's contents, since the maximum flask movement is 10 times that of the manometer legs, is also a feature. The apparatus accommodates various types of manometers, and has three selective speeds of oscillation. The amplitude of oscillation may be changed from 1 to 4 cm. in any desired Increment. Ε I
Pneumatic
Control
the dust; Sly Dust collects it.
maintenance costs, and often to recover valuable materials. Thousands of installations. Sly Dust Control is a paying investment and — it's not expensive. W h a t is your dust problem? Ask for Bulletin 9 8 .
THE W . W . SLY M F G . CO. 4770 Train Avenue
· C l e v e l a n d 2,Ohio
PIONEERS in Industrial Ovtt Control Representatives in N e w York · Ch îcago · Philadelphia Detroit · Cincinnati · Rochester · St. Low is «Toronto Los Angeles * Birmingham · Minneapolis
2722
Control
A pneumatic control mechanism now in corporated into Fisher & Porter Co. flow controlling instruments features a housing consisting of a one-piece die casting so that all component parts are maintained in a positively fixed relationship to each other. The entire assembly may be removed from the control instrument for cleaning or re pair without disturbing the process, ac cording to the company. A minimum of tubing connections is said to eliminate air leakage troubles, and absolute alignment of pen and index is claimed throughout the range. Κ2
Induction
Men don't breathe
Apparatus
Heating
Induction and dielectric heating equip ment is being made available to industry under a rental-purchase plan. Under this plan as established by the Induction Heat ing Corp., new or used induction or dielec tric generators may be rented on a monthly basis with the option to buy at any time. A portion of rental payments may form an equity toward outright purchase. Ε3
Valve for or Acid
Viscous Solutions
The design of a valve made by WrightHall Products, Inc., for chemical and test ing laboratories is said to permit the pass ing of pulpy, viscous, or acid mixtures through the cylindrical inside passage clear C H E M I C A L
of ail obstructions and change of cross section. The opening action is described as instant. The valve is self-closing and dripless and protects the solutions from metallic contamination. A hand release gives access to the one» working part when cleaning is required. It can be installed in place of ordinary valves without alter ation of equipment. Standard fittings are used. Valve bodies are of stainless steel, Pyrex, phenolies, molded plastic, or ceramics. Ε 4
Automatic for Flow
Alarm System Indicators
Development of an automatic electric alarm system as an integral part of its line of flow indicators has been announced by the Henszey Co. An electric alarm, either light or sound, is set off when the high or low limits of flow are reached. Constant checking of indicator readings is elimi nated. The flow indicators themselves are de signed for lines of free flowing liquids in paper mills, chemical plants, petroleum refineries, milk condenseries, and similar plants. The units have only three moving parts. They may be installed in the pipe line, where they register the rate of flow from 0 to 100%. Ε 5
Turbine-Type
Pump
A turbine-type pump manufactured by the Roy E. Roth Co. for domestic and industrial applications requiring high pressures to 175 lb., speeds to 3,600 r.p.m., capacities to 150 g.p.m., and viscosities to 550 s.s.u. will handle liquids of extreme temperature variations without stalling, through use of an automatic, self-adjusting impeller. Very hot liquids can be pumped without vapor-binding, the company states. The single multivaned impeller develops high pressures in single stage construction. Both heads and impeller, available in either bronze or stainless steel, are renew able in case of wear or whenever the capacity of the pump is to be changed. Ε 6
Radiant
Heaters
High heat intensity and utilization of almost the entire infrared band are claimed for all-metal electric radiant heaters an nounced by Edwin L. Wiegand Co. Glassless and glareless, these heaters were designed for drying, baking, preheating, and dehydrating where a longer-wave in frared heat source is desired and rugged construction is preferable. The enclosed type of heating element is mounted in a rigid extruded aluminum AND
ENGINEERING
NEWS
INDUSTRIAL AND E N G I N E E R I N G
CHEMISTRY
is
the
cheaiicai
engineer's most valuable source of information because it tells why... as well a s how . . . in each of t h e more than 120 pages of articles published in every issue. And because t h e American Chemical Society has early access to t h e finest writing and factual information in the chemical process industries, we can give you an idea right now of the type of articles which appeared in I&EC during 1948:
More about the
JANUARY
FEBRUARY MARCH
E in
I EC
Unit O p e r a t i o n s Review
1
Furan Chemistry
1
Unit Process Symposium
1
Production of Synthesis G a s Chemical Engineering in Plastics
1 1
1
APRIL
J
MAY
1
JUNE
H e a t Transfer Statistical Review: Facts a n d Figures on ChemicaSs a n d Raw M a t e r i a l s
1 1 I
!
JULY
Unit Process Review
1
I
AUGUST
Purification a n d Conditioning of W a t e r Supplies
1 1
Unit Process Review
1
1
SEPTEMBER
1
OCTOBER
1
NOVEMBER
H i g h Vacuum Technology
1
Chemical Engineering M a t e r i a l s o f Construction
1
Pilot Plant Design a n d Construction
Of great interest t o chemical engineers, this material represents b u t a few of the all-important subjects forming t h e backbone of each future issue. I n addition, there will be every-isstfe features such as "Pilot Plants," Process Operation article, Reports, Instrumentation, "Sidelights and T r e n d s , " Plant. Management, Corrosion, Equipment and Design, Reader Service, Editorials, "Headlines," " A s We See I t " . . . . and m a n y more articles of interest t o the industry.
inousTRiRL cncincERinG CHEIHISTRV INDUSTRIAL
AND
I N D U S T R I A L AND E N G I N E E R I N G
ENGINEER-
I N G C H E M I S T R Y contains valuable information which you can get in no other publication. Therefore it will be profitable for you to fill o u t the coupon (right) a t once— in order t h a t we may start your subscription immediately.
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Foreign postage additional.) 2723
NEW
EQUIPMENT cases, light objects or heavy objects. One or more counters may be located any where in the plant, remote from the loca tion where the count is being made. Ε 8
body with a reflector sheet of highly pol ished aluminum, which can be easily cleaned or replaced if necessary. Tongued and grooved sides and two sliding captive bolts facilitate fabrication of heater sec tions into various working patterns. T h e heating elements are mounted at the focus of a parabolic reflecting surface. T h e unit operates a t temperatures of 1,000° to 1,400° F . T h e glassless construction per mits an unobstructed path of infrared ra diation of the longer wave lengths, which are absorbed almost equally well by sur faces of all types. Ε 7
Photoelectric
Electronic
Air Filter
An electronic air filter developed by American Air Filter Co., Inc., has an inter mediate cleaning efficiency for applica tions where the efficiency o£ a mechanical filter is too low and t h a t of an electronic precipitator, unnecessarily high. The filter is basically an electronic precipitator without an ionizing u n i t and contains a collector element of electrostatically charged paper. This paper is a laminated cellulose product composed of a number of plies of porous, tissuelike sheets formed of short fibers in random arrangement. When an electrostatic charge is applied to t h e paper, the plies tend to separate and each individual fibre becomes a collecting electrode. T h e unit will continue to func tion as an air filter when de-energized. Ε 9
Counter
T h e Photoswitch, Inc., photoelectric counter T y p e 20AP5 is a general purpose unit for installation on any conveyor sys tem or automatic machine. It is designed with particular reference to case and bottle counting in the beverage fields; on loading chutes and conveyors; of textile and leather piece goods; and for selective counting by height and length. T h e light source has an adjustable lens system which permits narrowing down the light beam for counting very small objects. The entire counter can be installed quickly and without the help of an electrician. The same installation will count bottles or
Portable
Steam
Cleaner .
Introduced 12 months ago, the Cartesian Manostat proved an immediate success. Because here at last is the answer to the problem of efficient and economical pres sure control in the laboratory, pilot plant and industry. N o w in use in over 100 different indus tries, the automatic Cartesian Manostat, based on the principle of the Cartesian Diver, eliminates complicated electrical and mechanical systems or extra equip ment of any kind. You merely place this self contained unit in your system—SET IT and FORGET IT! H o w Cartesian Manostat Works
M O D E L
\
o.
5
PATENT PENDING
High Sensitivity , " High Capacity • Fool Proof Design · Rugged Construction • All Corrosion Resistant Metal For complete information including performance and operating data, write for Bulletin 1CM-96. 161 SIXTH A V I N U I %
) N I W YORK 13, Ν. Υ.
Agency: Pacific Laboratory Apparatus and Chemical Co., 3555 Whitrier Blvd., Los Angeles, California Branch Offices: 56 Amherst St., Cambridge, Mass. · 2127 Fourth St., Berkeley, Calif. · 90 State Street, Albany 7, Ν . Υ.
2724
Drvim
Truck
A portable d r u m truck which will smoothly a n d safely rotate a 30- or 55gal. sfceel d r u m b y means of a small elec tric motor is available from t h e Morse Mfg. Co., Inc. S o m e uses for the allwelded truck include mixing and blending p a i n t s , lacquers, oils, thinners, chemical compounds, p o w d e r s and similar products;
for making a d h e s i v e s and plastic mixtures, etc.; for t u m b l i n g and cleansing small p a r t s ; and for thoroughly cleaning the in side of used steel d r u m s . M a x i m u m drum load is 500 lb. a.t speeds to 50 r.p.m. Swivel casters, retractable by foot lever, a r e a t front end to make steering easy, and t h e rétractable f e a t u r e prevents slippage of the truck in loading. A.n extension nose piece a t the front makes loading and unloading of the d r u m easy and safe witho u t th.e use of a c r a n e hoist. Ell
Rotary Έίατνύ Pumps
Gas from higher source of pressure than system is admitted through needle valve at controlled rate. Portion of gas passes through Manostat into sys tem; excess gas passes through orifice opening, u p orifice tube, through stopcock plug to source of lower pressure. Controlling pressure is estab lished inside float. When pressure outside float, which communicates with system, becomes slight ly higher than controlling pressure, the sensitive float will drop, and permit excess gas to exhaust through orifice, automatically maintaining de sired pressure.
complete with 3 interchangeable orifices and mercury, $ 9 5 . 0 0 . Size: 7V2" overall. Diameter: 3 V i " , Weight: Approx. 8 lbs.
Portable
A portable, all-electric, industrial steam cleaner is being produced b y Livingstone Engineering Co. I t is designed to meet d e m a n d for a portable heavy duty steam cleaning unit which is easy to operate,
A c h i e v e ^ ^ K ^ ^ Pressure and Vacuum Control Simply, Efficiently and at New Low Cost.
f ARTRSIAJV JÎANflSTAT
completely safe, a n d effective. According t o the manufacturer, this steam-jet cleaner has industrial p l a n t applications such as cleaning walls and fixtures and degreasing machinery- and otlier equipment. There a r e n o open flames or noxious flue gases as i n st&am cleaners which are fired with gas o r oil. Stestm i s delivered to the cleaning nozzle where, u n d e r fingertip control, a soap solution, solvent, o r detergent is added, and a t o m i z e d with the high-pres sure steam.- T h e u n i t is m o u n t e d on an all-steel dolly w i t h rubber-tired swivel casters. Ε 10
CHEMICAL
Among rotary liand pumps manufac tured by t h e Bowser, Inc., pump division i s a crank-operated, 10-g.p.h. barrel pump equip-ped w i t h a 7.5-inch diameter drip pan east i n t e g r a l l y with t h e bung attach ment. A similar p u m p has a meter with a 4.5-iriLch, &-gal. diaJ mounted between the p u m p and spout t o measure the quantity pumped. T h e 10-g.p.rn., crank-operated barrel pump a l s o has t h e dial meter mounted s i m i l a r l y . A deflector prevents water or d i r t f r o m entering i t s barrel. The Q.75- b y 40-inch suction pipes of all three types are beveled on t h e lower end. [Continued on page 2782) Ε 12
AND
ENGINEERING
NEWS
EQUIPMENT
Hlaci . . PROCESS,
MAINTENANCE,
AND
AUXILIARY
EQUIPMENT, FOR T H E PLANT AND LABORA TORY IN T H E C H E M I C A L PROCESS INDUSTRIES
Triethanolanun» . . cl., t East lb. 0 T r i e t h y l a m i n e , druau*. I.c.l.. 1 0 0 % , wb lb. T r i p h e n y l phosphate, bbl., X lb. T u n g s t e n , tech., p o w d . . d r u m s , wks.lb. T u r p e n t i n e , g u m , bulk, Sa v gal. W o o d . I.c.l.. Ν . Υ gal. Urea, d o m . , 4 0 % N, bags, w k s . . . . t o n Vanillin, e x guaiacol, 25-lb. t i n s . . .lb. e x eugenol, 25-lb. t i n s lb. Whiting, limestone, d r y - g r d . , 3 2 5 mesh, bags, 4 0 t o n s , N . E . , wks. . t o n X y l e n e , i n d u s t . , e a s t of O m a h a , tanks gal. r e t u r n a b l e drum> gal. Xylidine, drums, Î lb. Zinc a m m o n i u m chloride, b b l . , c.l. lb. C a r b o n a t e , rubber, grade, bbl., wk s lb. C h l o r i d e , tech., fused, d r u m s , c.l., wks lb. M e t a l slabs, at V V lb. Oxide. Amer, process, b a g s , c.l. . . l b . St«-arat«·. tech.. 2.OCX) lb. o r more.lb. Sulfate, cryst.. h a g s , c.l., wks. 100 11.
20 -O 21 H
New E q u i p m e n t
0 36 0 31 2.90 -4.7Λ 0 37 ?4 0.50-0.52 73 00 3 00 4 50
(Continued from page 272^ l
9 50 0.2S-O.3O 0.37-0.39 0 38 0 0751 0 10M 0.06^4 0 1565 0 13H 0 45
* Nominal. t Freight allowed. Γ Fn-iiiht e.|ii:i]izcil.
STAINLESS STEEL TANKS Surplus Air Corps Pressure O x y g e n Tanks. Nine g a l l o n capacity. 1 2 " dia., 24" long. Hemispherical e n d s t a p p e d for VA" p i p e c o n n e c t i o n s . Rated strength to 400 P.S.I. 18 g a u g e stainless steel. $ 1 5 . 0 0 e a c h F.O.B. A u b u r n , Ν. Υ. I r e l a n d & V i c e , B o x 146C, Auburn, Ν . Υ.
ATTENTION CHEMISTS
S a t i n nickel finish i n l e a t h e r case
£ 4 Α Γ Α ψ I Oawll
Adjustable for 4 0 , 5 0 & 6 0 power, self-illuminated magnification. Satisfac tion guaranteed or money back in 5 days. Send check or money order today. I E. W. PIKE * C O . j 4 9 2 North A v e . , Elizabeth 3 , N . J .
«N
Ι Π Please send me "Pen" Microscopes j for which I enclose my (check, money order) j for $ J D Please send me free illustrated folder. Name Title I Company I Street j City State I — _ — .
2732
Process
Template
A t e m p l a t e for t h e use of engineers, de signers, a n d draftsmen in chemical, food, petroleum, a n d plastic processing is avail able from Rapidesign, Inc. Containing all the commonly used processing symbols for quick a n d accural* 1 layout delineation, the t e m p l a t e Is 5 by 8 k.rhes in size. Ε 13
Dust Collector
Conveyors
H a p m a n Conveyors, Inc., has evolved a standard design for a pipe conveyor to re move accumulated dry dust from collector hoppers. By installing these conveyors, dust hopper gates can be dispensed with. the company states. Dust-tight connec tions employed between the bottom of t h e hoppers a n d the carrying r u n of t h e con veyor pipe prevents loss of dust a n d re sults in a self-sealing unit. One conve3'or can receive dust from a series of collector bins. T h e S3rstem utilizes rubber flighted sealed pin chains. Operation under varied pressure or vacuum conditions is claimed to be accomplished easily. Ε 14
were designed b y F . C. Brenner of the Polytechnic I n s t i t u t e of Brooklyn. Tech nical d e p a r t m e n t s in industry will also find t h e sets helpful in overcoming the handicap of illustrating crystal structures in three dimensions. T h e r u b b e r balls are l V s inches in diameter a n d t h e holes 1 / 4 inch in diameter. T h e colors for contrast ing different ions and a t o m s a r e red, yellow, and blue. T h e cellulose a c e t a t e connectors come in straight lengths of l 3 /* inches. 3 3 Λ inches. 10 inches, and in a r c s 6 inches long. Ε 16
In addition to OUTfineanalyticalfilterpaperswe furnish j Special
Filterpapers
Chemical
Process
for
the
Industries
Write for Bulletin No. 66-C Giving Data on Your Requirements SCHLEICHER & SCHUELL C O . 116 West 14th St. New York 11, Ν . Ύ.
GET MORE FOR YOUR SURPLUS EQUIPMENT l a s t i t with our b u r e a u A n d S e l l D i r e c t l y t o t h e n e s t user. 5 0 , 0 0 0 M a n u f a c t u r e r s G e t O u r Offerings R e g u l a r l y . T h e y n e e d s u c h units a s FILTER PRESSES EVAPORATORS STILLS MIXERS DRYERS or w h a t h a v e y o u t o s e l l .
Safeguards
F o r Q u i c k e r A c t i o n a n d B e t t e r Price S e n d F u l l D e t a i l s a n d Y O U R price t o
Flame failure safeguards and controls for gas-oil conversion burners are being manufactured by Combustion Control Corp. S y s t e m FF-2 is used o n oil burners which use gas as an a l t e r n a t e fuel. T h e system consists of a photoelectric scanner, electronic flame rod, and programming control. A simple switching means is all t h a t is required for changeover from oil to gas. System F F - 6 is for gas burners which use light oil as an a l t e r n a t e fuel. I t includes an electronic rod and control providing instantaneous safety shutdown of main flame on pilot flame failure. N o wiring changes are required in changeover. Ε 15
EQUIPMENT FINDERS BUREAU 6 Hubert Street N e w Y o r k 13. X. Y.
Flame
Failure
Device for Molecular
Illustrating Structure
Crystal model sets consisting of rubber balls and cellulose acetate connectors are available from Fisher Scientific Co. for il lustrating lectures a n d for demonstrations in classrooms or laboratory work. Thev C H E M I C A L
LIQUID AIR LIQUID NITROCEN Daily deliveries Metropolitan
in Ν. Υ. Area
Supcusica All M e t a l C o n tainers for Lique fied A t m o s p h e r i c Gases Immediate
delivery
of* sizes up to 1 0 0
liters.
Catalog and price list sent upon request
Superior Air Products Co. 1 3 0 Malvern St.
A N D
» Newark 5 , N . J .
E N G I N E E R I N G
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