Text:

John Harrison’s Manuscripts and Drawings

These images (and more) are available from The Bridgeman Art Library.

Click on the images below to see more detailed information, on the Bridgeman Library site.

Diagram of timekeeper movements

Diagram of timekeeper movements

Fig 5 Gridiron pendulum designed for the construction of precision long case clocks. Fig 6. two inter-connected bar shaped balances with balance springs, proposed for the portable longitude timekeeper or "sea clock"

Fig 5 Gridiron pendulum designed for the construction of precision long case clocks. Fig 6. two inter-connected bar shaped balances with balance springs, proposed for the portable longitude timekeeper or “sea clock”

Instrs assemble H3 106111

Instructions for the assembly of JH’s H3 timekeeper

Design for the lesser watch mentioned by JH to the Board of Longitude on 19 June 1755, taken from a set of mechanical notes and drawings compiled by JH and son William

Design for the lesser watch mentioned by JH to the Board of Longitude on 19 June 1755, taken from a set of mechanical notes and drawings compiled by JH and son William

A page of instructions for the assembly of H4

A page of instructions for the assembly of H4

Another page of instructions for the assembly of H4

Another page of instructions for the assembly of H4

The movement of H4

The movement of H4

Drawing of the layout of the movement of H4

Drawing of the layout of the movement of H4

Design for a large enamel watch dial

Design for a large enamel watch dial

Two designs for large enamel watch dials

Two designs for large enamel watch dials, from mechanical notes and drawings compiled by John Harrison (1693-1776) and his son William (c.1726-72)

These images (and more) are available from The Bridgeman Art Library

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On behalf of the Clockmakers’ Charity, the Master is delighted to announce the appointment of Anna Rolls as Curator of the Clockmakers’ Collection; a new role that has been established following Past Master Sir George White’s decision not to seek re-election as Keeper of the Collection in September, after more than thirty years’ Service. Click the link for all information..

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