Co-Axial Daniels History Lookup

Return a sourced historical fact about George Daniels's co-axial escapement attribution, patent, mechanism, or series production.

Description

The co-axial escapement’s history distinguishes inventor attribution, patenting and series production.

The co-axial escapement’s history distinguishes inventor attribution, patenting and series production. Those milestones do not date every watch carrying the design.^[1]

Return a sourced historical fact about George Daniels's co-axial escapement attribution, patent, mechanism, or series production.

When to use Co-Axial Daniels History Lookup

Use this tool to return a sourced historical fact about George Daniels's co-axial escapement attribution, patent, mechanism, or series production.

Choose a supported reference focus or prepare the watch measurements, evidence and explicit limits requested. Confirm units and date conventions before running.

How to use Co-Axial Daniels History Lookup and understand its results

Choose a supported reference focus or prepare the watch measurements, evidence and explicit limits requested. Confirm units and date conventions before running.
Enter historyFocus using the field table and calculation rules, then run the tool.
Read historyFocus, keyDate, verifiedStatement. The explanation below defines the units, signs, ordering and any flags or placeholder values.
If the tool reports an input issue, correct the values and run it again. Apply the stated assumptions when interpreting a successfully returned result.

Input field	Meaning	Value type; see rules below	Requirement
historyFocus	Co-axial history focus	string; one of "attribution", "mechanism", "patent", "serialProduction"	Required

Select an exact supported historyFocus value from the field table and run the lookup. The implementation selects a fixed local table entry and returns the fields shown below. Matching is case-sensitive, with no trimming, synonyms or free-text search. Any keyDate output can be a date, period or context label.

result=stored entry for selected focus

Units, indexing, boundary conditions and exceptional cases are defined in the calculation rules above.

Output field	Meaning	Value type
historyFocus	Co-axial history focus	string
keyDate	Key date or identifier	string
verifiedStatement	Verified historical statement	string

json

{
  "input": {
    "historyFocus": "patent"
  },
  "output": {
    "historyFocus": "patent",
    "keyDate": "1980-11-12",
    "verifiedStatement": "European patent application EP0018796A2, naming George Daniels as inventor, was published on 12 November 1980."
  }
}

Limitations and assumptions

No movement identity, authenticity or performance advantage is established. No sources are fetched or statements updated at runtime.

Numeric inputs, where present, must be finite. Follow the calculation-specific rules for overflow, underflow and exceptional cases. Extremely large text inputs are rejected. Missing required fields, extra fields, wrong value types and violations of the calculation rules are input errors.

Alternative or Complementary methods

Use Lever Escapement Pallet Face Roles Lookup: Return the mechanical role and adjustment caution for a Swiss lever pallet's locking or impulse face without inventing universal angles. For a complementary task, use Escapement Impulse Rate: Compare detent, duplex, and natural-escapement impulse rates from the balance beat rate without conflating beat and full oscillation.

References

Co-Axial Daniels History Lookup — tool.io

Similar or alternative tools

Lever Escapement Pallet Face Roles Lookup
Return the mechanical role and adjustment caution for a Swiss lever pallet's locking or impulse face without inventing universal angles.
Escapement Impulse Rate
Compare detent, duplex, and natural-escapement impulse rates from the balance beat rate without conflating beat and full oscillation.