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Edison is granted U.S. Patent 90,646 for an electrographic vote-recorder

On 1 June 1869 the United States issued Patent 90,646 to Thomas A. Edison for an electrographic vote-recorder, a keyed apparatus meant to tally legislative yeas and nays electrically. Patent 90,646 for an electrographic vote-recorder (1869-06-01). In the causal graph this event strengthens the driver Industrial-Policy Activism.

Sources: [1][2]

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On 1 June 1869 the United States issued Patent 90,646 to Thomas A. Edison for an electrographic vote-recorder, a keyed apparatus meant to tally legislative yeas and nays electrically. It was his first U.S. patent. Assemblies did not adopt it.

Patent 90,646 for an electrographic vote-recorder (1869-06-01).

Context

Post-Civil War Congress and state houses still used voice and teller votes. A machine that made each member’s vote immediately visible threatened the custom of delayed or silent counting. Commercial failure is part of the Fact, not a reason to drop the patent.

Thomas Edison is not the sole author of every later object, law, or museum label that uses the name. Shared work with courts, excavators, printers, spouses, officials, and later states does not erase a documented role, and it does not make an ancient person the signer of a twentieth-century statute.

Why it matters

Industrial instrumentation of public recording. High confidence on the patent; the welfare path is a small access gain, not a democracy statute.

Who was responsible

Contribution type and responsibility level for each recorded actor — not sole-author shorthand.

  • Thomas Edison

    Person

    Direct responsibility

    responsibility level 0.7 · verified

    He is the named inventor on the 1869 federal patent. Legislatures did not buy the machine.

What changed

Fact → Driver → Indicator. Relationship strength orders the paths; it is not the observed indicator movement.

    1. FactEdison is granted U.S. Patent 90,646 for an electrographic vote-recorder
    2. strengthensDriverIndustrial-Policy Activism

    impact weight 0.55 · Effect from 1 June 1869 · verified

    A patented legislative recording device is an industrial-policy artefact of recorded voting, not a statute that forced legislatures to use it.

Evidence

The sources behind this fact and its verification state.

Verified2 sources on file
  1. 1.Britannica — Thomas EdisonEncyclopaedia Britannica · High credibility · verified
  2. 2.U.S. Patent 90,646 — Electrographic Vote-Recorder (1869)United States Patent and Trademark Office / Google Patents · High credibility · verified
What the sources establish

The patent text is a federal instrument. Britannica and the Edison Papers treat 1869 as the first granted patent, not as a later myth of a boy inventor.

Established: Patent 90,646 issued 1 June 1869 to Edison. Not established: that any legislature used it, or that recorded electronic voting in the later twentieth century is this machine.

Causal path

How this event connects to drivers and indicators in the graph.

  1. ActorThomas Edison
  2. contributed toFactEdison is granted U.S. Patent 90,646 for an electrographic vote-recorder
  3. strengthensDriverIndustrial-Policy Activism

Cite this page

Factrail. (2026). Edison is granted U.S. Patent 90,646 for an electrographic vote-recorder. Factrail. https://factrail.ai/facts/us-edison-vote-recorder-1869

https://factrail.ai/facts/us-edison-vote-recorder-1869

Accessed 16 October 2026.

By the Factrail desk · Method: how we source and score · Last reviewed

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