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William Thomson's Tide Predicting Machine, 1872

William Thomson's Tide Predicting Machine, 1872

1872
Mirror galvanometer for the transatlantic telegraph, 1858

Mirror galvanometer for the transatlantic telegraph, 1858

1858
Lord Kelvin's 'ironclad' marine galvanometer, 1865-1866

Lord Kelvin's 'ironclad' marine galvanometer, 1865-1866

1865-1866
William Thomson's marine mirror galvanometer, 1850-1900

William Thomson's marine mirror galvanometer, 1850-1900

1854
Letter written by William Thomson (Lord Kelvin), 1858

Letter written by William Thomson (Lord Kelvin), 1858

1858-03-02
Thomson (Lord Kelvin) double curb transmitter, 1858

Thomson (Lord Kelvin) double curb transmitter, 1858

1858
Kelvin's Harmonic Analyser

Kelvin's Harmonic Analyser

1878
Kelvin's second tide predictor, 1873.

Kelvin's second tide predictor, 1873.

1873
Siphon recorder, 1870

Siphon recorder, 1870

1870
Electrostatic voltmeter

Electrostatic voltmeter

1888
Kelvin Quadrant Electrometer, 1866

Kelvin Quadrant Electrometer, 1866

1866
Model to Demonstrate Combination of Tidal Constituents, 1872

Model to Demonstrate Combination of Tidal Constituents, 1872

1872
Boxwood fathom marker

Boxwood fathom marker

1876
Thomson Type Current Balance, 1888

Thomson Type Current Balance, 1888

1888
Boxwood fathom marker

Boxwood fathom marker

1876
Sir William Thomson's Triple Depth Gauge, one of two, 1880

Sir William Thomson's Triple Depth Gauge, one of two, 1880

1880
Hand-powered winch, for Ocean depth sounding machine, used for marine vessel navigation

Hand-powered winch, for Ocean depth sounding machine, used for marine vessel navigation

1876
Galvanised iron canister

Galvanised iron canister

1876
Azimuth mirror component

Azimuth mirror component

1876-1879
Wooden box for Prof. William Thomson's fuel calorimeter

Wooden box for Prof. William Thomson's fuel calorimeter

1886-1900
Glass tube, containing a chemically prepared example, for Ocean depth sounding machine

Glass tube, containing a chemically prepared example, for Ocean depth sounding machine

1876
Case, cylindrical - with chain attached lid and funnel - for glass tubes, for Ocean depth-sounding machine, for marine vessel navigation

Case, cylindrical - with chain attached lid and funnel - for glass tubes, for Ocean depth-sounding machine, for marine vessel navigation

1876
Part of Kelvin's quadrant electrometer

Part of Kelvin's quadrant electrometer

Kelvin's Sounding Tube Sampler, 1873-1876

Kelvin's Sounding Tube Sampler, 1873-1876

1873-1876
Key for William Thomson compass binnacle

Key for William Thomson compass binnacle

1876-1879
Binnacle with correctors for quadrantal semicircular and heeling errors

Binnacle with correctors for quadrantal semicircular and heeling errors

1876-1879
Barrel magnet for siphon recorder, designed by William Thomson (Baron Kelvin) made by James White & Company, Glasgow, Scotland, 1870. Used by the Eastern Telegraph Co in Egypt, and later in India

Barrel magnet for siphon recorder, 1870

1870
Paper dispenser for siphon recorder, designed by William Thomson (Baron Kelvin) made by James White & Company, Glasgow, Scotland, 1870. Used by the Eastern Telegraph Co in Egypt, and later in India

Paper dispenser for Siphon recorder, 1870

1870
Siphon recorder, designed by William Thomson (Baron Kelvin) made by James White & Company, Glasgow, Scotland, 1870. Used by the Eastern Telegraph Co in Egypt, and later in India

Siphon recorder, 1870

1870
Kelvin's harmonic analyser for tidal computations, 1878

Kelvin's harmonic analyses for tidal computations

1878
Kelvin absolute electrometer, 1855

Kelvin absolute electrometer, 1855

1855
Kelvin type 4-inch aperiodic compass with gimbals, plus binnacle and brass hood, by James White, Glasgow, Lanarkshire, Scotland, 1876. The Kelvin type 4-inch aperiodic compass with gimbals, plus binnacle and brass hood was presented in 1876 by Lord Kelvin, Sir William Thomson.

Kelvin type 4-inch aperiodic compass with gimbals

1876
Binnacle with correctors for quadrantal semicircular and heeling errors, azimuth mirror used to take bearings from compass by raising the line of sight, azimuth mirror component, and key for compass binnacle, patented by William Thomson, and made by James White, Glasgow, Scotland, 1876-1879

Binnacle with correctors for quadrantal semicircular and heeling errors

1876-1879
Triple Depth Gauge, one of two, with tinplate cover, by Sir William Thomson (Lord Kelvin) and James White of Glasgow, 1880

Air-Compression type Depth Gauges, 1880

1880
Galvanised cast iron sinker weight hollowed at base, for Ocean depth sounding machine, used for marine vessel navigation, patented by Sir William Baron Kelvin Thomson, British, 1876 and made by James White, Glasgow, Scotland, 1876

Galvanised cast iron sinker weight hollowed at base

1876
Tin cylindrical canister, with attached hinged lid and carrying handle, for Ocean depth sounding machine, used for marine vessel navigation, patented by Sir William Baron Kelvin Thomson, British, 1876 and made by James White, Glasgow, Scotland, 1876

Tin cylindrical canister

1876
Specifications of Patents. Kelvin and others against Whyte, Thomson, and Company. [Collection of twelve patents and their drawings relevant to the court case between Lord Kelvin et al. and Whyte, Thomson & Co. Nine relate to ships' compasses, three to incandescent gas lamps. 1 vol.]

Specifications of Patents. Kelvin and others against Whyte

1854-1906
Galvanised cast iron sinker weight hollowed at base, for Ocean depth sounding machine, used for marine vessel navigation, patented by Sir William Baron Kelvin Thomson, British, 1876 and made by James White, Glasgow, Scotland, 1876

Galvanised cast iron sinker weight, for Ocean depth sounding machine, used for marine vessel navigation

1876
Prof. William Thomson's fuel calorimeter, by A. Gallenkamp & Co. Ltd., London, England, 1886-1900.

Prof. William Thomson's fuel calorimeter

1886-1900
Brass tube, containing a glass tube, which has a brass cap at one end and open at the other end, containing traces of silver chromate and / or silver chloride, lashed to a hemp rope - which is tied to a galvanised cast iron sinker weight hollowed at base, for Ocean depth sounding machine, used for marine vessel navigation, patented by Sir William Baron Kelvin Thomson, British, 1876 and made by James White, Glasgow, Scotland, 1876

Brass tube, lashed to a hemp rope, which is tied to a galvanised cast iron sinker weight, for Ocean depth sounding machine, used for marine vessel navigation

1876
Brass tube, with a brass cap at one end, containing a glass tube, which has a brass cap at one end and open at the other end, and contains traces of silver chromate and / or silver chloride, for Ocean depth sounding machine, used for marine vessel navigation, patented by Sir William Baron Kelvin Thomson, British, 1876 and made by James White, Glasgow, Scotland, 1876

Brass tube, to carry a glass tube containing a chemically prepared example, for Ocean depth sounding machine, used for marine vessel navigation

1876
Galvanised cast iron sinker weight hollowed at base, for Ocean depth sounding machine, used for marine vessel navigation, patented by Sir William Baron Kelvin Thomson, British, 1876 and made by James White, Glasgow, Scotland, 1876

Galvanised cast iron sinker weight hollowed at base

1876
Brass tube, with a brass cap at one end, containing a glass tube, which has a brass cap at one end and open at the other end, and contains traces of silver chromate and / or silver chloride, for Ocean depth sounding machine, used for marine vessel navigation, patented by Sir William Baron Kelvin Thomson, British, 1876 and made by James White, Glasgow, Scotland, 1876

Brass tube, to carry a glass tube containing a chemically prepared example, for Ocean depth sounding machine, used for marine vessel navigation

1876
Two Glass tube brass cap end fragments, for containing a chemically prepared example, for Ocean depth sounding machine, used for marine vessel navigation, patented by Sir William Baron Kelvin Thomson, British, 1876 and made by James White, Glasgow, Scotland, 1876

Two Glass tube brass cap end fragments

1876
Brass tube, with a brass cap at one end, containing a glass tube, which has a brass cap at one end and open at the other end, and contains traces of silver chromate and / or silver chloride, for Ocean depth sounding machine, used for marine vessel navigation, patented by Sir William Baron Kelvin Thomson, British, 1876 and made by James White, Glasgow, Scotland, 1876

Brass tube, to carry a glass tube containing a chemically prepared example, for Ocean depth sounding machine, used for marine vessel navigation

1876
Kelvin quadrant electrometer, 1857

Kelvin quadrant electrometer, 1857

1857
Sighting attachment, patt.57, for compass with Kelvin's Azimuth mirror replaced with prism, unsigned, (1913-1939). Based on William Thomson, Baron Kelvin's 1883 patent.

Sighting attachment for compass, with carrying case

1913-1939
Kelvin divided ring electrometer and gauge, made by William Thomson, 1st Baron Kelvin, 1861

Kelvin divided ring electrometer and gauge, 1861

1861
Fibre box containing two heavy weights, from 1876-740 pt.1. Missing fibre box at present, c.1873.

Fibre box containing two heavy weights

1870-1876
Sinker and valved tube with detaching appliance, for pianoforte wire sounding machine, c.1873.

Sinker and valved tube with detaching appliance

1870-1876