General Information

Serial #

N/A

Part Number

1

Total Parts

2

AKA

N/A

Patents

N/A

General Description

PURE BORO-SYLICATE GLASS (PYREX) TUBING & VALVES/ IRON MAGNETS/ ELECTROMAGNETIC COILS HAVE PLASTER (?) COVER

Dimensions

Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.

Length

29.0 cm

Width

17.0 cm

Height

17.0 cm

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Chemistry

Category

Laboratory equipment

Sub-Category

N/A

Manufacturer

AKA

VANDERHOFF

Country

Canada

State/Province

Ontario

City

Ottawa

Context

Country

Canada

State/Province

Ontario

Period

C. 1955-1975

Canada

DESIGNED, BUILT & USED IN CANADA WHEN NRC WAS WORLD LEADER IN PHOTOCHEMICAL STUDIES UNDERE.W.R. STEACIE'S LEADERSHIP. VERY FEW OF THESE DEVICES WERE MADE (APPROX. 3-4) & THIS MAY BE THE ONLY SURVIVING EXAMPLE. ACCORDING TO DONOR THE PUMP WORKED VERY QUICKLY & EFFICIENTLY (PER SFM)

Function

TO MIX GASES HOMOGENOUSLY WITHOUT CONTAMINATION. USED MAINLY AT LOW PRESSURES. GASES CAME INTO CONTACT WITH GLASS SURFACES - NO RISK OF CONTAMINATION FROM CONTACT WITH METAL OR GREASE.

Technical

IMPORTANT GAS MIXING INNOVATION USED IN CLASSIC PHOTO- CHEMISTRY EXPERIMENTS IN THE 1950s & 1960s AT NRC. TO FILL WITH GAS SMALL UPPERVALVES WERE LIFTED WITH MAGNETS. WHEN CONTROL UNIT IS SWITCHED ON, POWER ACTIVATES ELECTROMAGNETS WHICH EXERT AN OSCILLATING MAGNETIC FIELD ON SOFT IRONMAGNETS ENCLOSED IN GLASS PISTONS. IN OPERATION THE PISTONS MOVE UP & DOWN ROCKING ON SEE-SAW AT BOTTOM OF RECIPROCATOR, MIXING THE GAS IN THE TUBES EVENLY (SFM).

Area Notes

Unknown

Details

Markings

N/A

Missing

CONNECTING CABLE FROM CONTROL UNIT TO ELECTROMAGNETS

Finish

OFF-WHITE PLASTER COVERS ELECTROMAGNETIC COILS/ CLEAR GLASS

Decoration

N/A