Houdriforming catalyst to be made in Europe

Houdriforming catalyst to be made in Europe

May, i955.] CURRENT ToPIcs Klystron for Airborne Radar Applications.--A new, low-cost reflex klystron, the VA-203, featuring superior frequency stab...

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May, i955.]

CURRENT ToPIcs

Klystron for Airborne Radar Applications.--A new, low-cost reflex klystron, the VA-203, featuring superior frequency stability for airborne Xband radar receiver and beacon local oscillator service has been introduced by Varian Associates of Palo Alto, California. Claimed to be the most advanced klystron ever developed for airborne applications, the VA-203 features a unique, brazed-on external tuning cavity to assure exceptional frequency stability. The new klystron is able to withstand shocks of 50 to 100 g's without malfunction or damage. Among its exclusive characteristics are negligible microphonics, slow tuning rate, long tuning life and a single shaft tuner which adapts easily to motor tuning. Weighing only eight ounces, the lowcost VA-203 mates directly to standard wave guide flanges. In connection with the introduction of the VA-203, the manufacturer has announced a companion klystron--the VA-201--for super-rugged service. Equipped with silastic leads, the VA201 klystron resists shocks as high as 250 g's and performs with the same dependability as the VA-203.

Improved Recording Spectrophotometer.--A recent development in the Cary Model 14 Recording Spectrophotometer has opened a new wavelength region which will permit analysis of a number of compounds not previously adaptable to ultraviolet spectrophotometry on standard instruments, according to an announcement from the Applied Physics Corporation, Pasadena, California. Through the use of optical elements of increased ultraviolet efficiency in the prism grating double monochromator, the improved Model 14 provides good performance to 1900A and even shorter wavelengths. This region in-

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cludes analytical possibilities for ketones, alcohols, mono-olefines, aromatics and several other compounds. Formerly, good performance below 2100A was possible only on custommade instruments. Although the prism grating double monochromator of the Model 14 has been known for its unusually high resolving power with low scattered light (less than a part per million) in the ultraviolet, visible and near infrared regions, the improved optical elements make it even more effective and provide the extended range, according to the company.

Houdriforming Catalyst to be Made in Europe.--Houdriforming process licensees in Europe shortly will be able to obtain catalyst supplies made on the continent, Houdry Process Corporation has announced. An agreement has been signed with the Chemische Werke Huels A. G., at Marl, Kreis Recklinghausen, ( W ) Germany, under which the Huels plant will produce catalyst for use of European Houdriforming licensees. Hondriforming catalyst manufactured by Huels, under the agreement, may also be sold to other refineries under appropriate licensing arrangements with Houdry Process Corporation. Up to now, the only source of Houdriforming catalyst had been the Houdry plant at Paulsboro. New Jersey.

Army's Bulldozer Remodeled.They're making some changes on the Army's bulldozer and "grease monkeys" are glad! The Corps of Engineers' Research and Development Laboratories, Fort Belvoir, Virginia, have undertaken a program designed to make work a lot easier for heavy equipment mechanics who have to keep the construction engineer's best weapon in top shape.