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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
Letter written by William Thomson (Lord Kelvin), 1858

Letter written by William Thomson (Lord Kelvin), 1858

1858-03-02
William Thomson's Tide Predicting Machine, 1872

William Thomson's Tide Predicting Machine, 1872

1872
William Thomson's marine mirror galvanometer, 1850-1900

William Thomson's marine mirror galvanometer, 1850-1900

1854
Thomson (Lord Kelvin) double curb transmitter, 1858

Thomson (Lord Kelvin) double curb transmitter, 1858

1858
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
Boxwood fathom marker

Boxwood fathom marker

1876
Boxwood fathom marker

Boxwood fathom marker

1876
Kelvin's Harmonic Analyser

Kelvin's Harmonic Analyser

1878
Kelvin's second tide predictor, 1873.

Kelvin's second tide predictor, 1873.

1873
Wooden box for Prof. William Thomson's fuel calorimeter

Wooden box for Prof. William Thomson's fuel calorimeter

1886-1900
Azimuth mirror component

Azimuth mirror component

1876-1879
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
Sir William Thomson's Triple Depth Gauge, one of two, 1880

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

1880
Electrostatic voltmeter

Electrostatic voltmeter

1888
Thomson Type Current Balance, 1888

Thomson Type Current Balance, 1888

1888
Siphon recorder, 1870

Siphon recorder, 1870

1870
Kelvin Quadrant Electrometer, 1866

Kelvin Quadrant Electrometer, 1866

1866
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
Binnacle with correctors for quadrantal semicircular and heeling errors

Binnacle with correctors for quadrantal semicircular and heeling errors

1876-1879
Model to Demonstrate Combination of Tidal Constituents, 1872

Model to Demonstrate Combination of Tidal Constituents, 1872

1872
Key for William Thomson compass binnacle

Key for William Thomson compass binnacle

1876-1879
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
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
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
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
Photograph of Kelvin's recording tide gauge, 1882

Photograph of Kelvin's recording tide gauge

1882
Telegraph, 1898 Jul 3 [to] Maclean, Physical Laboratory, University [of] Glasgow / [Baron] Kelvin. [He writes " this is transmitted commercially through ether from Alum Bay [Isle of Wight] to Bournemouth and by postal telegraph thence to Glasgow". The first such commercial telegraph. Maclean was assistant in the Physical Laboratory, and later professor at Glasgow Technical College]

Telegraph, 1898 Jul 3 [to] Maclean

1898
[Letter, n.d.] Druid's Cross, Wavertree, Liverpool [to] Mr. Maclean / W. Thomson, [re particular laboratory apparatus. Maclean was assistant in the Physical Laboratory, University of Glasgow. 4p. (on 1 leaf), holograph signed]

[Letter, n.d.] Druid's Cross

nd.
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
Kelvin portable electrometer, 1867 type, by James White. Ex-Antarctic Expedition, 1901

Kelvin portable electrometer

1867
Kelvin's harmonic analyser for tidal computations, 1878

Kelvin's harmonic analyses for tidal computations

1878
Sinker and valved tube with detaching appliance, for pianoforte wire sounding machine, c.1873.

Sinker and valved tube with detaching appliance

1870-1876
Kelvin divided ring electrometer and gauge, made by William Thomson, 1st Baron Kelvin, 1861

Kelvin divided ring electrometer and gauge, 1861

1861
Winding handle {unfitted}, for hand-powered winch, 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

Winding handle {unfitted}

1876
Glass tube, with a brass cap at one end and open at the other end: containing 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

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

1876
Glass tube, with a brass cap at one end and open at the other end: containing 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

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

1876
Glass tube, with a brass cap at one end and open at the other end: containing 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

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

1876
Glass tube, with a brass cap at one end and open at the other end: containing 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

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

1876
Glass tube, with a brass cap at one end and open at the other end: containing 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

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

1876
Glass tube, with a brass cap at one end and open at the other end: containing 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

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

1876
Glass tube, with a brass cap at one end and open at the other end: containing 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

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

1876
Glass tube, with a brass cap at one end and open at the other end: containing 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

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

1876
Glass tube, with a brass cap at one end and open at the other end: containing 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

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

1876
Glass tube, with a brass cap at one end and open at the other end: containing 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

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

1876
Glass tube, with a brass cap at one end and open at the other end: containing 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

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

1876