Universal Helio-chronometer, with accessories

Universal Helio-chronometer, with rag-bolt, screwdriven box key with accessories (3 pieces), Pilkington and Gibbs Ltd., Preston, Lancashire, early 20th century.

Details

Category:
Time Measurement
Object Number:
1922-156
type:
mean-time sundial
credit:
Pilkington and Gibbs Ltd.

Parts

"Universal" Helio-chronometer, for Northern Hemisphere, 1901-1922

"Universal" Helio-chronometer, for Northern Hemisphere, 1901-1922

Universal Helio-chronometer, with rag-bolt, screwdriven box key, patent No 10,787, Pilkington and Gibbs Ltd., Preston,1901-1922. It was designed to correct for the equation of time, meaning that standard mean-time could be ascertained at any place, providing there is sunlight. This model for use in the Northern hemisphere, a serparate one designed for Southern hemisphere.

Measurements:
overall: 270 mm 225 mm, 7.44kg
Object Number:
1922-156 Pt1
type:
helio-chronometer
Image ©
The Board of Trustees of the Science Museum
Accessories for universal Helio-Chronometer

Accessories for universal Helio-Chronometer

Accessories (3 pieces) for universal Helio-chronometer, with rag-bolt, screwdriven box key, Pilkington and Gibbs Ltd., Preston, Lancashire, early 20th century.

Object Number:
1922-156 Pt2
type:
accessories and helio-chronometer
Image ©
The Board of Trustees of the Science Museum