NEW PRODUCTS
Benson
tioning embedded tissues. entific Co.
Fisher Sci P-17
LABORATORIES Inc.
Metals Microtome accurate, positive
dependable displacement
LIQUID CHEMICAL FEEDER PUMPS
Trouble-free ... designed for ease of operation and ease of mind. Accurate . . . will maintain original discharge rate indefinitely. Durable . .. valveless hydraulic p u m p and Teflon diaphragm. Safe . . . anti-siphoning head.
M a x . Discharge 32 oz/hr 120oz/hr
RPM 6 20
Series SV pumps will o p e r a t e against a maximum back pressure of 1 0 0 psi. Series LV Simplex 12" χ 13" χ 8"
·
high
Model
M a x . Discharge
LV-7 LV-10
240 o z / h r 320 o z / h r
Series LV Duplex 1 8 " χ 1 3 " χ 8 " high
M a x . Discharge RPM Model IV-7D 240 o z / h r ea. head 43 320 o z / h r ea. head 57 LV-10D • Both heads on Duplex models are i n d e p e n d e n t l y adjustable from zero to full discharge rate. • A l l Series LV pumps w i l l operate against a maximum bock pressure o f 125 psi. (Can be operated up to 200 psi when higher pressure discharge t u b i n g is used.)
Benson LABORATORIES INC.
127 Old Country Rd. Carle Place, L. Ι., Ν. Υ.
Circle No. 31 on Readers' Service Card 80 A
·
Emergency Wash Fountains Series 7900 units, activated by large push valve, blanket facial areas from all angles. Stainless steel bowl has 360° spray ring with six jets that bathe face and eves. Haws Drinking Faucet Co. P-19 Combustion Tube Furnaces New line operates at temperatures to 2200° F. Features vestibules at each end to reduce heat losses. Comes in solid or hinged models, with or without indicating or controller pyrometers. Hevi-Duty Electric Co. P-20 Micro-Reactor for Chromatography Unit
Series SV ll'/2"x5'/2" 6 ' / i " high
Model SV-1 SV-4
Automatic unit is designed for sur facing nonferrous metals and others with about 23 Rockwell hardness. Mechanism is adjustable to advance specimens in steps as small as one micron. William J. Hacker & Co. P-18
ANALYTICAL CHEMISTRY
Device consisting of modification of the company's standard gas sampling valve permits use of the microcatalyticchromatographic technique on the Model 154D vapor tactometer. Makes possible the rapid survey of a series of catalysts using a flow type reactor. Changes of catalyst activity as a func tion of time can be studied, using only small quantities of reactant. System can be used for periodic or continuous examination. Perkin-Elmer Corp. P-21 Film Scintillators Made of Pilot Scintillator B : said to feature high time resolution and ability to discriminate against gamma rays and fast neutrons. Pilot Chemicals, Inc. P-22 Linear Count Rate Meter Gives direct meter indication of the rate of random pulses generated in various detectors. Audio circuit for aural monitoring and connection for strip chart recorder are also provided. Radiation Counter Laboratories, Inc. P-23 256 C h a n n e l A n a l y z e r
Model 20613 features preselected automatic programming, magnetic tape auxiliary memory, 600 to 2500-volt power supply, single push button man-
MIX SOLVENTS SAFELY You need never worry about a motor spark igniting solvents or other volatiles —if you mix them with this heavy-duty LIGHTNIN Mixer, Model ARL It operates on compressed air at 30-90 lbs. pressure; develops 1/30 hp. You can mix at any speed from 50 to 1750 rpm by setting built-in control valve. The fully enclosed motor cannot overload or burn out. Versatile, rugged Model ARL mixes any fluids, handles 24-hour day-after-day mixing jobs with ease. Fully guaranteed. Thousands in use. Complete with removable 12-inch shaft and 2-inch 3-blade propeller in 316 stain less steel or Monel, tank clamp or ringstand clamp in bronze. Weight 7 lbs. Order from your supply house or write us. Model ARL, less handle $72.00 With handle, as shown. . .add 2.00 There's a full line of heavy-duty LIGHTNIN Mixers and accessories for the laboratory. Bulletin B112 describes them all. To receive it, check reader service card or write us.
Lightnin Mixers M I X I N G EQUIPMENT Co., Inc. 160-g Mt. Read Blvd., Rochester 3, Ν. Υ. In Canada: Greey Mixing Equipment, Ltd., 700 Miranda Ave., Toronto 19, Ont. Circle No. 1 on Readers' Service Card
