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

1865-1866

William Thomson's Tide Predicting Machine, 1872

1872

Mirror galvanometer for the transatlantic telegraph, 1858

1858

Letter written by William Thomson (Lord Kelvin), 1858

1858-03-02

William Thomson's marine mirror galvanometer, 1850-1900

1854

Thomson (Lord Kelvin) double curb transmitter, 1858

1858

Kelvin's Harmonic Analyser

1878

Boxwood fathom marker

1876

Boxwood fathom marker

1876

Kelvin's second tide predictor, 1873.

1873

Electrostatic voltmeter

1888

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

1880

Siphon recorder, 1870

1870

Thomson Type Current Balance, 1888

1888

Model to Demonstrate Combination of Tidal Constituents, 1872

1872

Kelvin Quadrant Electrometer, 1866

1866

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's harmonic analyser for tidal computations, 1878

Kelvin's harmonic analyses for tidal computations

1878

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

Kelvin portable electrometer

1867

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

Sinker and valved tube with detaching appliance

1870-1876

Photograph of Kelvin's recording tide gauge, 1882

Photograph of Kelvin's recording tide gauge

1882

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

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, 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

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

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

Kelvin divided ring electrometer and gauge, 1861

1861

[Letter] 1890 Jul 7, The University, Glasgow, to Dr (John Ambrose) Fleming / William Thomson, [later Lord Kelvin. He has 'looked into the matter of contact electricity and the multicellulars', giving details of readings. Major Cardew showed him his multicellular [voltmeter] and got different readings. Thomson is going to investigate this difference but thinks it may be due to 'the varnishing of the aluminium needle'. 4p ts. on 1 leaf, holograph signed]

Letter

1890

Kelvin quadrant electrometer, 1857

Kelvin quadrant electrometer, 1857

1857

Kelvin absolute electrometer, 1855

Kelvin absolute electrometer, 1855

1855

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

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

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

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

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, 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

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

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

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