the EDITOR'S column
Welch
CATHETOMETER
Significant recent engineering improvements in this instrument insure better performance -», than ever and more vears of satisfactory """' ""!
L.T. Hallett, Editor f-pHE LABORATORY BENCH s h o u l d
Improved
fit
-*- the scientist and not the scientist the bench, was the observation of many scientists interviewed in a laboratory market research study. The survey, made by the Labora tory Equipment Section of the Sci entific Apparatus Makers Associa tion, was aimed at finding out what laboratory furnishings were needed to work effectively. Three ques tions were asked : 1. \Vhat instrument and/or ap paratus would you like to see incor porated as an integral part of labo ratory furniture, hoods, etc., in the future? 2. What other comments and/or suggestions would you make to builders of highly specialized labo ratory furniture to make your job easier, more profitable, and more efficient? 3. What particular attributes of a bench or top finish do you recom mend for greatest service in your laboratory? Interviews were arranged with 62 scientists in industry and education. The scientists represent laboratories in the petroleum, food, metallurgi cal, paint, plastics, and chemical in dustries. High school and univer sity laboratories are also repre sented. It was noted that each area has its own unique requirements. There were some general characteristics, however, which apply to most groups. Many scientists, for ex ample, advocate freeing valuable bench top working space by build ing certain specialized instruments and apparatus into the laboratory table. Other proposals include mo bile laboratory benches and hoods including floor service islands. Some analytical chemists, for ex ample, call for table wells to house burets. A biology instructor sug gests a refuse disposal unit for the
service. This instrument is designed fot ptecise measurement of vertical dis tances. It is particularly useful where the object to be observed is not con veniently accessible, or may easily be disturbed by physical contact, or must be located in a position too hazardous to permit the ob server to be in close proximity. It is also commonly employed for qualitative telescopic viewing within the laboratory because of its versatile positioning adjust ments and over-all stability. Vertical Range Smallest Reading by Vernier Telescope Working Distance Angular Magnification Reticle Level Sensitivity
100cm 0 . 0 5 mm 45 cm to infinity 1 2 X a t 4 5 cm 8 X at Infinity 90-degree crosshairs 50 Seconds No. 68A—Each $275.50
Write for descriptive circular
THE WELCH SCIENTIFIC COMPANY ESTABLISHED 1880 · 1515 Sedgwick St., Depl. A-1, Chicago 10, III., U.S.A. Manufacturers
of Scientific
Instruments
and Laboratory
Apparatus
Loomis HYDRAULIC PRESSES IDEAL FOR FORMING KBr PELLETS FORMING PELLETS FOR X-RAY AND OTHER SPECTROSCOPIC ANALYSIS RAPID HANDWHEEL ADJUSTMENT OF VERTICAL PLATEN OPENING UNIVERSAL USE FOR RESEARCH, CONTROL AND TESTING APPLICABLE FOR CERAMIC AND shown in Insert POWDER METALS PRESSING Available in 30 and 50 ton sizes. Accessories for temperature, pressure, extrusion, test ing units, etc. for all models. WRITE FOR
BULLETIN
Loomis
20 ton capacity hydraulic press Guided moving 9" χ 9" platen Even pressure distribution for uniform den sity Accurate alignment in operation Rugged 3 & 4 column construction 22" maximum vertical opening, adjustable Self-contained, bench operated
ENGINEERING & MFG. CO. DEPT. A , ROUTE 4 6 CALDWELL, N . J .
Circle No. 64 on Readers' Service Card VOL. 33, NO. 4, APRIL 1961
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89 A
