General Information

Serial #

3345

Part Number

1

Total Parts

1

AKA

N/A

Patents

N/A

General Description

CAST IRON BEARING BLOCK FRAMES, FIELD TUBES & CIRCULAR POLE PIECES, STEEL RODS & SHAFTWITH CAST IRON PULLY & BRASS & COPPER COMMUTATOR. COPPER BRUSHES. CAST IRON ARMATURE WITH IRON WIRE. WOODEN SUPPORT PLUGS. COPPER WIRE FIELD COILS. BRASS OILERS W/ CAST IRON DRIP CATCHER CUPS. BRASS CONNECTORS. BRONZE SHAFT BEARINGS. MISC INSULATING PAPER & FIBRE WASHERS. WOOD BASE. WOOD CASE, COPPER SWITCH BLADES ETC.

Dimensions

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

Length

87.5 cm

Width

91.0 cm

Height

62.0 cm

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Energy-electric

Category

Generation

Sub-Category

N/A

Manufacturer

AKA

Thomson Houston

Country

United States of America

State/Province

Massachusetts

City

Lynn

Context

Country

North America

State/Province

Unknown

Period

1884-1900

Canada

PART OF A LARGE AND VARIED COLLECTION OF ELECTRICAL ITEMS ACQUIRED AND DOCUMENTED BY ONTARIO HYDRO IN THE 1960S. THIS COLLECTION CONSISTS OF OVER 7500 ARTIFACTS, AND IS THOUGHT TO BE THE LARGEST & MOST COMPREHENSIVE IN CANADA. IT WAS DONATED IN ITS ENTIRETY TO THE NATIONAL MUSEUM OF SCIENCE & TECHNOLOGY IN 1992.

Function

USED TO CONVERT ROTARY MECHANICAL ENERGY INTO DIRECT CURRENT ELECTTRICAL ENERGY. PRIMARY FUNCTION TO PROVIDE REGULATED ELECTRICAL ENERGY TO SERIES CONNECTED ARC LAMPS OR INCANDESCENT LAMPS.

Technical

EXAMPLE OF RING OR SPHERICAL ARMATURE DESIGN

Area Notes

Unknown

Details

Markings

END OF FIELD, TOP: 'THOMSON DYNAMO-ELECTRIC MACHINE/ NO 3345/ PATENTED-SEPT.2.79-JAN.13.80-JAN.20.80-OCT.5.80-JUN.7.81-FEB.6.83-/ JUL.17.83-APR.8.84/ MANUFACTURED BY/ THOMSON-HOUSTON ELECTRIC CO./ LYNN, MASS. U.S.A.'/ ON REGULATOR: 'NO/ AUTOMATIC REGULATOR/ PATENTED/ JAN.20.1880. MAR.1.1881/ DEC.26.1882 FEB.6.1883'

Missing

N/A

Finish

VARNISHED WOOD BASE. CAST IRON FRAME & STEEL WORK, BLACK GLOSS ENAMEL. FIELD COILS & REGULATOR SOLENOID, STRING WRAPPED AND RED ENAMELED. BRASS & COPPER NATURAL FINISH. SOME END BOLTS, GOLD COLOUR ENAMEL. BELT ADJUSTING SCREW & RATCHET, BLACK ENAMEL. PULLEY SURFACE VARNISH.

Decoration

N/A