Education/demonstration model - Cast iron - 1850-1900 - Faraday generator
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An electro‑magnetic induction demonstration device dating to circa 1890–1920, with a solid wood base, a cast‑iron flywheel, copper windings on soft iron cores, brass terminals, a hand crank, weighing about 12 kg and measuring 60×40×25 cm, in reasonably used condition.
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Description from the seller
Clarke Electromagnetic Induction Device / Educational Magnetoelectric Generator – circa 1890–1920
Technical Description:
Scientific instrument for physical demonstration and historical electrotechnology, representative of the early developments of manual electrical generators (permanent-magnet dynamos).
Operating Principle:
Demonstrative device of Faraday's Law of Induction. Manual rotation of the flywheel through mechanical multiplication drives a rotor adjacent to a set of permanent magnets, converting mechanical energy into induced electromotive force (EMF) in the coils.
Construction and Materials:
Base: Solid wood support plank with period varnish finish and lifting feet.
Transmission Flywheel: Grey iron inertia wheel with belt groove, decorative brush painting (pinstriping) and bakelite/wood handwheel.
Magnetic System: Set of permanent horseshoe magnets of tempered steel mounted statically, with original protective paint.
Induced System: Pair of coils with enamel-coated copper wire windings on a soft iron core.
Contacts and Terminals: Primitively plated brass terminals and switch for capturing and extracting the electrical signal.
Dimensions: (60x40x25 cm)
Weight: (12 kg)
Condition of Preservation:
State of conservation
Notable, featuring natural metal patina, uniform wear of the original paint, and structural integrity of the assembly.
Mechanical: The flywheel spins freely. The transmission belt in leather/rubber is missing.
Electrical: Original windings and insulation visually preserved.
Equipment not tested under electrical-dynamic load; The photographs are part of the description.
Auctioned as a historical collection/display object.
Due to the size of the pieces, they will be shipped with the larger elements dismantled."
Clarke Electromagnetic Induction Device / Educational Magnetoelectric Generator – circa 1890–1920
Technical Description:
Scientific instrument for physical demonstration and historical electrotechnology, representative of the early developments of manual electrical generators (permanent-magnet dynamos).
Operating Principle:
Demonstrative device of Faraday's Law of Induction. Manual rotation of the flywheel through mechanical multiplication drives a rotor adjacent to a set of permanent magnets, converting mechanical energy into induced electromotive force (EMF) in the coils.
Construction and Materials:
Base: Solid wood support plank with period varnish finish and lifting feet.
Transmission Flywheel: Grey iron inertia wheel with belt groove, decorative brush painting (pinstriping) and bakelite/wood handwheel.
Magnetic System: Set of permanent horseshoe magnets of tempered steel mounted statically, with original protective paint.
Induced System: Pair of coils with enamel-coated copper wire windings on a soft iron core.
Contacts and Terminals: Primitively plated brass terminals and switch for capturing and extracting the electrical signal.
Dimensions: (60x40x25 cm)
Weight: (12 kg)
Condition of Preservation:
State of conservation
Notable, featuring natural metal patina, uniform wear of the original paint, and structural integrity of the assembly.
Mechanical: The flywheel spins freely. The transmission belt in leather/rubber is missing.
Electrical: Original windings and insulation visually preserved.
Equipment not tested under electrical-dynamic load; The photographs are part of the description.
Auctioned as a historical collection/display object.
Due to the size of the pieces, they will be shipped with the larger elements dismantled."
Details
Era
1400-1900
Iron type
Cast iron
Title additional information
Faraday generator
Number of objects
1
Material
Brass, Copper, Iron, Wood
Condition
Fair condition - heavily used & with possibly minor parts missing
Height
40 cm
Weight
12 kg
Depth
60 cm
Width
25 cm
Verification Marks
No
Estimated period
1850-1900
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