Berthon's speed indicator for ships comprising of calibrated mercury monometer with engraved ivory plates

Made:: 1849-1851 in England

maker:: Edward Lyon Berthon

Berthon's speed indicator for ships comprising of calibrated mercury monometer with engraved ivory plates, rubber tubing, and brass components displayed in cutaway sections of wood ship, by Edward Lyon Berthon, England, 1849-1851

Details

Category:: Navigation

Object Number:: 1867-39

type:: speedometer

credit:: E L Berthon

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Parts

Berthon's speed indicator for ships comprising of calibrated mercury monometer with engraved ivory plates

Materials:: brass (copper, zinc alloy) , wood (unidentified) , ivory , rubber (unidentified) and mercury

Object Number:: 1867-39/1

type:: speedometer

Two brass pressure gauges, for Berthon's speed indicator

Two brass pressure gauges connecting the calibrated monometer to pilot head, by Edward Lyon Berthon, England, 1849-1851

Materials:: brass (copper, zinc alloy) and steel (metal)

Object Number:: 1867-39/2

type:: speedometer

Brass pilot head with ivory handle in cut-away wood mount demonstrating placement on ship

Brass pilot head with ivory handle in cut-away wood mount demonstrating placement on ship, by Edward Lyon Berthon, England, 1849-1851

Materials:: wood (unidentified) , mirror-glass (silvered) , ivory , brass (copper, zinc alloy) and acrylic

Object Number:: 1867-39/3

type:: speedometer

Berthon's speed indicator for ships comprising of calibrated mercury monometer with engraved ivory plates

Details

Parts