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Ship's automatic roll recorder

Ship's automatic roll recorder

1872
Key switch, type C-412-C, by Muirhead and Co. Ltd.

Key switch, type C-412-C, by Muirhead and Co. Ltd.

Pivot for Froude's Resistance Dynamometer

Pivot for Froude's Resistance Dynamometer

1870-1871
Parts of William Froude's original Resistance Dynamometer (1871) used in his researches on surface tension and ship resistance consisting of 1) Lever and index arm 2) counterweights 3) pivot 4) wood framing, by William Froude c.1871

Parts of William Froude's original Resistance Dynamometer

1870
Wooden framework for Froude's Resistance Dynamometer, c.1871

Framework for Froude's Resistance Dynamometer

1870-1871
Lattice-work index arm with lead counterweight on a wood level, for Froude's Resistance Dynamometer, c.1871

Index arm with lead counterweight, for Froude's Resistance Dynamometer

1870-1871