General Information

Serial #

81502H

Part Number

1

Total Parts

1

AKA

N/A

Patents

N/A

General Description

CAST IRON, IRON, STEEL, AND POSSIBLY OTHER METAL MATERIALS OF CONSTRUCTION. CARBON BRUSHES. PORCELAIN OR PORCELAIN COATED CONTACT BOX. FABRIC COVERING ON ELECTRICAL CONNECTIONS.

Dimensions

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

Length

76.0 cm

Width

40.0 cm

Height

54.0 cm

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Energy-electric

Category

Conversion

Sub-Category

N/A

Manufacturer

AKA

SPRAGUE

Country

United States of America

State/Province

New York

City

New York

Context

Country

North America

State/Province

Unknown

Period

THIS TYPE OF MOTOR USED IN EARLY 1900S.

Canada

THIS TYPE OF MOTOR SOLD AND USED IN CANADA. (REF. 1)

Function

TO CONVERT ELECTRICAL INTO MECHANICAL ENERGY.

Technical

THE FIELD COILS IN THIS MODEL HAS BEEN PLACED CONCENTRICALLY TO THE ARMATURE, INSTEAD OF AT AN OBLIQUE ANGLE. THE CONCENTRIC POSITION OF THE FIELD COIL PERMITS THE WITHDRAWL OF THE ARMATURE WITHOUT DISTURBING EITHER THE FIELD COIL OR THE POLE PIECES. THE COMMUTATOR ISPLACED OUTSIDE OF THE FIELD MAGNET SHELL FACILITATING ACCESS TO THE BRUSHES. (REF. 1)

Area Notes

Unknown

Details

Markings

Mfr's plate on motor reads "Sprague Electric/ CO./ NEW YORK,/ U.S.A./ LUNDELL MOTOR/ R.T. 5 FORM D/ PAT'D AUG. 30, 1892./ SEP. 26, 1893 AUG. 3, 1897./ H.P. 5 SPEED 1100 R.P.M./ AMP. 36.9 VOLTS 115/ No 81502H". "252283A" cast in raised print on casing end opposite shaft, and on inside of brush access compartment doors.

Missing

UNKNOWN.

Finish

BLACK ENAMEL FINISH ON MOST EXTERIOR SURFACES; WHITE PORCELAIN FINISH ON CONTACT BOX.

Decoration

N/A