Detail of Vulliamy's regulator clock, c 1780.

Richardson, Claire

 
Detail of Vulliamy's regulator clock, c 1780.
4 0 c m
 
31cm
actual image size: 23cm x 32cm

Description

A regulator clock is a highly accurate timepiece, usually used for making precise measurements in conjunction with astronomical observation. This clock was made by Benjamin Vulliamy (1780-1854) for George III and was used as the principal timekeeper at the King's Observatory in Richmond. Friction rollers act as the bearings of the wheelwork, reducing the need for lubrication. The clock was fitted with the almost frictionless 'grasshopper' escapement invented by the pioneer of the chronometer, John Harrison (1693-1776). Harrison's gridiron' pendulum was also incorporated to ensure the clock kept good time, compensating for changes of temperature in the Observatory.

Image Details

Artist
 
Image Ref.
 
10439588

© Science Museum / Science & Society Picture Library

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