any manufacturer which produces a dc current or voltage signal. HIGH FREQUENCY
HEATING UNITS
s
Lepel induction . heating equipment is the r most practical and efficient source of heat developed for numerous industrial applications ?
CHEMICAL ANALYSIS AIDED BY INDUCTION HEATING
Vacuum Fusion Analysis A few parts per million of hydrogen, oxy gen or n i t r o gen may cause m a r k e d changes In the mechani cal, chemical, electrical and Agiass fabricating graphite characteris powder tics of steel, t i t a n i u m , zir conium and other metals. Schematic di agram shows arrangement of induction coil and equip ment for heating metal samples in graph ite crucible to fusion for vacuum fusion analysis.
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Τ
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Similar arrangement, using refractory met al crucible in place of graphite crucible, allows rapid heating of non-metallic pies to temperatures exceeding 3000°F atmosphere or vacuum witr minimum contamination. O u r e n g i n e e r s w i l l process y o u r w o r k samples a n d return the completed job with full data a n d recommenda tions without cost or obligation,
Platinum Crucible Fusion Furnace PLATINUM CRUCIBLE
/ CEMRIC H K I INDUCTION COIL
Many analytical procedures require chemi cal fusions above 2000°F often in platinum crucibles. Rapid heating by induction saves time, minimizes loss of constituents by volatilization, and eliminates high main tenance costs associated with electric re sistance furnaces when operating at these high temperatures. Schematic illustration shows simple adap tation of platinum crucible fusion furnace used in preparation of electrodes for spec t r o g r a p h ^ analysis of alumina in silica brick. Provisions for temperature control are available. WRITE FOR NEW LEPEL CATALOG
Lepel
HIGH FREQUENCY LABORATORIES, INC.
55th ST. & 37th AVE., WOODSIDE 77. Ν. Υ. CHICAGO OFFICE: 6246 WEST NORTH AVE. Circle No. 53 on Readers' Service Card 82 A
l/EC C H E M S H O W
REPORT
now, high temperature
The new CM-3 analog computer-con troller from Dresser Electronics, SIE Division, provides real time control for multivariable chemical and petro chemical processes. Either feed ahead or feedback techniques may be used. Modular construction pro vides versatility in installation. Unit can be used for operator guid ance or equation solution for engi neering design and analysis. CM-3 prices vary from $5000 to $10,000. A significant feature of MinneapolisHoneywell's new miniature PncumatiK Tel-O-Sct is that these instru ments eliminate adjustments in auto matic - manual - cascade control switching. Thus, no matching of pressures is required. Chart drives do not have to be removed to make adjustments for zero, damping, or priming of pens. And controller connections are automatically sealed when it is removed from its case. The line consists of one- and two-pen indicators and recorders with or without control, controllers, includ ing single and two station cascade, and pneumatic relays. Buffalo Meier Co. presents a Niagara line of simplified industrial liquid meters which enable plants to improve volumetric measure ment of more than 500 liquids. Meter permits repetitive deliveries of preset quantities with pushbutton control. Instrument activates a solenoid valve and recycles instantly to the preset quantity after each delivery. Electricontact meter gives electrical impulses for each unit of fluid, to permit remote batch con trol or integration. Brookfield has a complete line of viscometers for continuous indica tion, recording, and controlling of viscosity for laboratory or in-process installations. The Brookfield con sistency regulator is suggested for per cent solid measurement and control of solutions, suspensions, and slurries. System instrumentation, petroleum refining, and chemical processing is the theme of instruments from Fischer & Porter. The F & Ρ in-line blending system comprises a digital comparator, direct-reading sealertotalizers, ratio setter, valve with electro-pneumatic positioner, and pulse-type flowmeters. The system, which can blend up to 20 or more
TO 250° F.
$215 jet agitation independent of filtration
SUBMERGED FILTER SYSTEMS V* h.p. to l/z h.p. AC continuous duty, totally enclosed, ball bear ing, 3 4 0 0 r.p.m. b r u s h l e s s motor, fan cooled full-view epoxy-pyrex chamber, faster filtration for all corrosive solutions compact, leakproof, non-aera t i n g fully corrosion resistant fits anywhere on tank for easy trouble-free operation
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adjusts to 2" fluid depth shallow tank operation
for
filters from 150 to 1 micron S U B B A - 5 p r i c e i n c l u d e s V4 h.p. motor, hose and adjust able stainless steel mounting brackets. ο · · · · · · · · · · · · · · 3 models: from 50 to 200 gph, open pumping: 350 to 500 gph
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models available for filtering every solution from lead to gold from pHO to pH14 f r o m 70° F to 250° F Polypropylene available with t i tanium and teflon fittings for Chromic Acid Wrife or Call Now for Bulletin
No. 551 8
Sethco MANUFACTURING
CORP.
2285 Babylon Turnpike, Merrick, Ν. Υ. MAyfair 3-4220 DEPTH FILTRATION FOR ALL ELECTROPLATING AND INDUSTRIAL APPLICATIONS · METAL FIN ISHING · PHOTO PROCESSING · PETROLEUM • SOLVENTS · LACQUERS · PHARMACEU TICALS · ULTRASONIC CLEANERS · RADIOAC TIVE SOLUTIONS · WATER · ELECTROTYPING
See us at Booth #293 at the Chem Show Circle No. 110 on Readers' Service Card
