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The Encyclopedia of Horology

Precision weight-driven regulator clock · United States

E. Howard & Co. Astronomical Regulator Clocks

Needs research

Representative of American high-grade precision regulator production used by observatories, railroads and watch-inspection bureaus needing an accurate time reference against which pocket watches could be checked.

Technical facts

Escapement
Deadbeat, typical of precision regulator practice
Drive
Weight-driven with a mercury or gridiron-style compensation pendulum in the highest grades

Historical significance

  • Representative of American high-grade precision regulator production used by observatories, railroads and watch-inspection bureaus needing an accurate time reference against which pocket watches could be checked.
  • As with other 'representative production family' entries in this dataset, individual surviving Howard regulators vary in specification and require object-specific documentation rather than a single generic description.

Photographs

Howard astronomical regulator clock
Howard astronomical regulator clock — Edward S. Holden, Public domain. Wikimedia Commons file page

Photographs are illustrative examples of the type, not necessarily the exact object described. Verify details against the source file page.

Sources & references

  1. NAWCC Bulletin, articles on E. Howard & Co. regulator production

Where sources disagree, the disagreement is stated rather than resolved silently.