General Information

Serial #

N/A

Part Number

1

Total Parts

3

AKA

N/A

Patents

N/A

General Description

CLOTH COVEREDCARDBOARD FOLDERS, EACH WITH CARDBOARD SLIDE RULE

Dimensions

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

Length

22.5 cm

Width

10.5 cm

Height

N/A

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Lighting Technology

Category

Miscellaneous

Sub-Category

N/A

Manufacturer

AKA

Consumers

Country

Canada

State/Province

Ontario

City

Toronto

Context

Country

Canada

State/Province

Ontario

Period

1930'S +

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 ELECTRIC LIGHTING, CG BEGAN SUPPLYING GAS AS FUEL FOR DOMESTIC APPLIANCES & LATER FOR HEATING.

Function

SLIDING MECHANICAL CALCULATING DEVICE USED TO CALCULATE DISCHARGE OF GAS PER HOUR FROM PIPE OR DIAMETER OF GAS PIPE.

Technical

SIMPLE SPECIALIZED SLIDE RULE USED BY GAS COMPANY.

Area Notes

Unknown

Details

Markings

BLACK PRINTED LETTERING INSIDE FOLDER READS IN PART "CONSUMERS' GAS COMPANY/ GAS FLOW COMPUTER/ FORMULA [WITH FORMULA & SYMBOLS]/ TO FIND THE DISCHARGE OF GAS PER HOUR [WITH INSTRUCTIONS]/ TO FIND THE DIAMETER OF PIPE [WITH INSTRUCTIONS]"/ BLACK & RED PRINTED LETTERING ON SLIDE RULE/.1 HANDWRITTEN "H. JONES/ INDUSTRIAL"/.2 HANDWRITTEN "G.F. LILLEY"

Missing

COMPLETE

Finish

DARK BLUE COVER/ WHITE INTERIOR & SLIDE RULE

Decoration

N/A