General Information

Serial #

N/A

Part Number

1

Total Parts

3

AKA

N/A

Patents

N/A

General Description

STEEL

Dimensions

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

Length

43.2 cm

Width

16.0 cm

Height

10.0 cm

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Industrial Technology

Category

Industrial equipment

Sub-Category

N/A

Manufacturer

AKA

OTTAWA MOULDCRAFT

Country

Canada

State/Province

Ontario

City

Ottawa

Context

Country

Canada

State/Province

Ontario

Period

1960-1980

Canada

Unknown

Function

MOULDING RUBBER PLUGS TO ELECTRIC CORDS

Technical

INJECTION MOULDING IS A PROCESS WHERE MOLTEN PLASTIC OR RUBBER IS FORCED INTO A DIE TO PRODUCE THE DESIRED SHAPE. THIS DIE SET WAS USED TO MOULD PLUGS ON THE END OF ELECTRIC CORD SETS AND IS ESTIMATED TO HAVE PRODUCED OVER 3 MILLION DURING ITS 20 YEAR LIFESPAN. IT IS OBSOLETE NOW BECAUSE OF A RE-DESIGN OF THE PLUGS. IN USE THE OPERATOR ASSEMBLED THE CORDS IN ONE HALF OF THE DIE, THEN LOWERED THE PRESS ARM WITH THE TOP HALF OF THE DIE ATTACHED TO IT. PLASTIC WAS FORCED INTO THE OPENING AT THE SIDE AND WHILE IT WAS BEING CURVED THE OPERATOR POSITIONED ANOTHER SET OF CORDS ON THE OTHER SIDE OF THE DIE. WHEN THE ARM WAS RELEASED AND MOVED ACROSS TO THE NEW CORDS, A STRIPPER PLATE KNOCKED THE CURVED CORD SET FREE AND THE OPERATION WAS REPEATED ON THE OTHER SIDE. MOST MODERN CORD SET PLUGS ARE OF PVC RATHER THAN RUBBER. IF THE DIE TEMPERATURE VARIES UPWARDS BY MORE THAN 5%, THIS MATERIAL RELEASES HYDROCHOLORIC ACID. THUS THE SURFACE OF THE DIE IN CONTACT WITH THE EFFECTS OF CORROSION.

Area Notes

Unknown

Details

Markings

N/A

Missing

N/A

Finish

NONE

Decoration

NONE