General Information

Serial #

N/A

Part Number

1

Total Parts

1

AKA

N/A

Patents

N/A

General Description

GLASS BULB; SYNTHETIC CONNECTIONS; LIQUID MERCURY/ CLOTH STRAP; WOOD CASE WITH METAL HARDWARE AND PAPER LABELS; METAL SCREW

Dimensions

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

Length

117.0 cm

Width

106.0 cm

Height

152.0 cm

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Energy-electric

Category

Regulation & transformation

Sub-Category

N/A

Manufacturer

AKA

HEWITTIC

Country

England

State/Province

Unknown

City

Unknown

Context

Country

Canada

State/Province

British Columbia

Period

Unknown

Canada

TYPE SAMPLE OF A MERCURY ARC RECTIFIER THAT WAS USED IN SUBSTATIONS THROUGHOUT CANADA FROM THE 1920'S TO THE MID 1960'S.

Function

USED TO CONVERT A.C. POWER SUPPLY VOLTAGE TO THE CORRECT D.C. OUTPUT BY PREVENTING THE A.C. CURRENT FROM REVERSING ITS DIRECTION.

Technical

THE MERCURY ARC RECTIFYING BULB WAS MORE RELIABLE & EASIER TO MAINTAIN THAN MECHANICAL RECTIFIERS. IT WAS ALSO EASIER TO OPERATE. THE BULB TECHNOLOGY WAS REPLACED BY THESILICON RECTIFIER IN THE 1960'S.

Area Notes

Unknown

Details

Markings

ON GLASS 'Type 500cs/ 5083'/ PAPER LABELS ON CASE: 'HEWITTIC/ RECTIFIER/ BULB [2]'/ '[?]ARE/ THE HACKBRIDGE & HEWITTIC ELECTRIC/ COMPANY OF CANADA LIMITED/ 103 ELMSLIE ST. VILLE LASALLE/ MONTREAL 32, CANADA' 'GLASS' 'KEEP THIS END UP'/ STENCILLING IN ENGLAND' 'NO. 15' 'H.E.C./ R.661559' 'VANCOUVER' 'OPEN UNSCREW HERE' 'FRAGILE'

Missing

none

Finish

UNCOLOURED GLASS

Decoration

N/A