Seeded Patent Dossiers

These dossiers expand the seeded patent register into research-ready records. They are not the complete Steinmetz patent corpus. They are the first public control layer for patents currently listed in the intake register.

Every mature patent page must eventually include the original PDF, drawing extraction, claim transcription, checksum, and page-image references. Until then, each record below is a structured dossier, not a final legal or historical analysis.

Reading Rule

A patent tells us what apparatus or method was legally claimed. It does not automatically tell us Steinmetz’s full theoretical philosophy. Use patents as engineering evidence and compare them with books only after the overlap is source-located.

US533244A: System of Distribution by Alternating Currents

Patent link: Google Patents
PDF: US533244.pdf
Publication date: 1895-01-29
Filing date: 1894-04-02
Assignee: General Electric Company
Main domain: alternating-current distribution, phase displacement, monocyclic/polyphase service

Technical digest: a monocyclic AC distribution system using a supplementary phase-modifying source or coil so ordinary single-phase lighting loads and polyphase motor loads can be supplied from a common system.

Archive value: this belongs beside symbolic AC, phase relation, polyphase currents, and early AC distribution history. The drawing extraction pass should preserve the distribution system diagram, generator bank diagram, phase-modifying coil regulation diagram, and geometrical phase-displacement diagram.

US559419A: Inductor-Dynamo

Patent link: Google Patents
PDF: US559419.pdf
Publication date: 1896-05-05
Filing date: 1896-02-15
Assignee: General Electric Company
Main domain: inductor dynamo, synchronous generation, field excitation, magnetic flux paths

Technical digest: an inductor-dynamo arrangement that mounts armature coils on extended pole faces and uses a revolving inductor, reducing field-coil count, copper cost, and excitation losses.

Archive value: this is a machine-construction record for magnetic field, magnetic flux, field excitation, and alternating-current machinery. Compare with the reissue record before promoting unique claims.

US583950A: Three-Phase Induction-Meter

Patent link: Google Patents
PDF: US583950.pdf
Publication date: 1897-06-08
Filing date: 1897-01-30
Assignee: General Electric Company
Main domain: three-phase metering, induction wattmeter, quadrature, unbalanced load

Technical digest: a three-phase induction wattmeter intended to register energy in three-phase, three-wire interlinked systems, including unbalanced or inductive loads, by coordinating current coils, potential coils, and quadrature relations.

Archive value: this patent should link to wattless component, power factor, quadrature current, three-phase systems, and measurement. It is a particularly strong patent-side route into why phase and real power cannot be collapsed into simple current magnitude.

US594145A: Inductor-Dynamo

Patent link: Google Patents
PDF: US594145.pdf
Publication date: 1897-11-23
Filing date: 1897-08-12
Assignee: General Electric Company
Main domain: inductor dynamo, auxiliary air-gap, eddy currents, magnetic reluctance

Technical digest: an inductor-dynamo improvement using an auxiliary air-gap and a short-circuited winding near the armature edge to reduce magnetic pulsation, distribute flux more uniformly, and limit eddy-current heating.

Archive value: this patent belongs with magnetic reluctance, eddy currents, magnetic flux, hysteresis, and material loss. Drawing extraction should preserve the end elevation, side elevation, and magnetic path geometry.

US714412A: Induction-Motor

Patent link: Google Patents
PDF: US714412.pdf
Publication date: 1902-11-25
Filing date: 1900-03-22
Assignee: General Electric Company
Main domain: induction motor, squirrel-cage winding, starting torque, secondary resistance

Technical digest: a squirrel-cage induction motor starting arrangement that keeps the secondary circuit at high resistance for starting and progressively decreases effective resistance as the motor rises in speed.

Archive value: this patent should link to effective resistance, induction motor slip, torque, starting behavior, and apparatus losses. It pairs naturally with Theory and Calculation of Electric Apparatus.

US717464A: System of Electrical Distribution

Patent link: Google Patents
PDF: US717464.pdf
Publication date: 1902-12-30
Filing date: 1902-03-31
Priority date: 1899-08-19
Assignee: General Electric Company
Main domain: electrical distribution, two-phase to three-phase transformation, magnetomotive force, phase conversion

Technical digest: a distribution and transformation arrangement that combines quarter-phase magnetomotive forces to produce three-phase flux relations and three-phase secondary currents.

Archive value: this patent should be tied to polyphase systems, phase relation, transformer action, magnetomotive force, and vector diagrams. It should eventually get a phase-vector redraw after the original drawing is extracted.

US865617A: Induction-Motor

Patent link: Google Patents
PDF: US865617.pdf
Publication date: 1907-09-10
Filing date: 1905-08-07
Assignee: General Electric Company
Main domain: induction motor, high-resistance rotor, cooling, reversing service

Technical digest: an induction motor with high-resistance hollow secondary conductors and forced fluid cooling, designed for severe reversing service where high torque is needed at or near reversal.

Archive value: this belongs with torque, slip, resistance loss, heat removal, and industrial motor duty. It is useful for showing Steinmetz’s apparatus thinking as practical design, not merely abstract formula.

US1025932A: Means for Producing Light

Patent link: Google Patents
PDF: US1025932.pdf
Publication date: 1912-05-07
Filing date: 1902-04-11
Priority date: 1900-03-05
Assignee: General Electric Company
Main domain: electric lighting, mercury arc, spectral modification, ionized vapors

Technical digest: a mercury-arc lighting patent using added conducting vapors, especially alkali-metal iodides, to modify spectral output and improve useful light production.

Archive value: this is the strongest patent-side link to Radiation, Light and Illumination. It should connect to radiation, spectrum, discharge, ionization, arc lighting, and useful visual output.

US1042986A: Induction-Furnace

Patent link: Google Patents
PDF: US1042986.pdf
Publication date: 1912-10-29
Filing date: 1911-07-26
Assignee: General Electric Company
Main domain: induction furnace, induction heating, power factor, magnetic leakage

Technical digest: an induction furnace arrangement in which the metallic crucible itself acts as a primary winding closely coupled to the charge, reducing leakage flux and improving power factor.

Archive value: this patent should link apparatus design to transformer action, magnetic leakage, induction heating, power factor, and practical industrial conversion of electrical energy into heat.

US1230615A: Protective Device

Patent link: Google Patents
PDF: US1230615.pdf
Publication date: 1917-06-19
Filing date: 1913-06-19
Assignee: General Electric Company
Main domain: surge protection, high-voltage transmission, surge resistance, high-frequency transients

Technical digest: a selective protective device for high-voltage installations that uses the different surge resistances of lines and apparatus to pass high-frequency disturbances in one direction and reflect or divert them in the other.

Mathematical candidate: R = sqrt(L / C) appears in the register as a surge-resistance candidate formula. The typography and context must be verified from the patent scan before canonical use.

Archive value: this is one of the most important seeded patents for the transient, lightning, surge, distributed constants, and high-frequency sections. It should eventually receive original drawing extraction and a modern circuit redraw.

USRE11576E: Inductor-Dynamo

Patent link: Google Patents
PDF: USRE11576.pdf
Publication date: 1896-11-24
Filing date: 1896-10-31
Assignee: General Electric Company
Main domain: reissue patent, inductor dynamo, magnetic paths, machine construction

Technical digest: a reissue-related inductor-dynamo record closely connected to the inductor-dynamo construction family; compare against US559419A before promoting unique claims.

Archive value: this record is useful only after reissue lineage is reviewed. It should not be counted as a separate technical invention until the original and reissue claims have been compared.

Patent Promotion Checklist

Each seeded dossier becomes a mature patent page only after:

PDF downloaded into sources/steinmetz_patents/raw/<patent-number>/.
PDF checksum recorded.
Claims and abstract transcribed or OCR-corrected.
Drawings extracted as original figure assets.
Apparatus explanation written from the patent itself.
Modern engineering reading added as a separate layer.
Related Steinmetz book passages linked by source location.
Speculative or ether-field interpretation, if any, kept separate from patent fact.