General Information

Serial #

N/A

Part Number

1

Total Parts

2

AKA

N/A

Patents

N/A

General Description

Wood and cellulose nitrate slide rule with metal clips

Dimensions

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

Length

30.6 cm

Width

3.2 cm

Height

1.1 cm

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Lighting Technology

Category

Miscellaneous

Sub-Category

N/A

Manufacturer

AKA

GRIZZLE

Country

United States of America

State/Province

District of Columbia

City

Washington

Context

Country

Canada

State/Province

Ontario

Period

CIRCA 1945 +

Canada

EQUIPMENT USED BY GAS PRODUCER & DISTRIBUTOR CONSUMERS' GAS OF TORONTO, INCORPORATED IN 1848 TO SUPPLY LIGHTING TO CITY OF TORONTO. AFTER 1880, IN FACE OF INCREASING COMPETITION WITH & EVENTUAL REPLACEMENT BY ELECTRICLIGHTING, CG BEGAN SUPPLYING GAS AS FUEL FOR DOMESTIC APPLIANCES & LATER FOR HEATING.

Function

DEVICE USED TO CALCULATE FLOW OF GAS THROUGH PIPES OR LINES, SPECIFICALLY CUBIC FOOR PER DAY FLOW CAPACITY, INLET & OUTLET PRESSURES, PIPE DIAMETER, ETC.

Technical

SPECIALIZED SLIDE RULE USED IN GAS INDUSTRY.

Area Notes

Unknown

Details

Markings

BLACK LETTERING ON SLIDE RULE READS "GRIZZLE GAS PIPELINE SLIDE RULE", "B.F. GRIZZLE, P.O. BOX 33, WASHINGTON 4, D.C.", & "COPYRIGHTED 1945 B.F. GRIZZLE" WITH SCALE MARKINGS ON RULES & INSTRUCTIONS ON BACK

Missing

COMPLETE

Finish

.1 WHITE SLIDE RULE WITH COLOURLESS TRANSPARENT SLIDE/.2 BROWN

Decoration

N/A