🛠️ Invention or technique

Domestic mechanical alarm clock

Despertador mecánico doméstico

Date
1787 · confidence medium
Place
Concord, New Hampshire, United States
Credited to
Levi Hutchins
Field
Tools

⚠️ Disputed: the sources disagree.

What it is

A clock with a bell that rings at a set time, devised by Levi Hutchins to wake up at 4 a.m. It became a common household object once it was made adjustable.

Clocks with alarms exist in the 15th-16th centuries (Europe) and Plato is said to have used a water alarm; Hutchins made his for his own use and the patent for the adjustable alarm is Redier's (1847).

What it led to

  • working-time punctuality in industry with regular hours
  • the adjustable alarm clock of the Frenchman Antoine Redier in 1847
  • battery, quartz and radio alarm clocks

Links

Sources✓ verified 2026-11-06