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Description: | H DENERLEY
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ROBERT CORSON W. HAMPTON // New // Improved // Sliding Rule
Slide rule
Folding navigational Slide Rule.
Material: Boxwood with brass fittings.
Graduations: On upper surface, from top, are 4 logarithmic scales A, B, C, D, divided to whole numbers and sub divided into 1/10's and 1/20's as space permits. A line of "HOURS" 0 - 6 by 5'. "Latitudes" 0 - 90 by 1. "CHORDS" 0 - 90 by 1. "Inclina Meridi" 0 - 90 by 1.
Each line fitted with a brass stud. Lower surface (when open) forms a 24" rule divided to 1/8". It also carries sectorial lines of "POLYGONS", "Cho", "Tan" each line fitted with a brass stud.
AUDIT - object needs to be marked with its NAV number. Two unnumbered parts. | Publisher: | http://collections.rmg.co.uk/page/7d7ded6fb50d6031e2884961a200be58.html | Source: | Royal Museums Greenwich | Creator: | Corson, Robert | Identifier: | http://collections.rmg.co.uk/collections... | Go to resource |
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