Accession No

1022

Brief Description

brass dialling scale for latitude 51˚ 32´ N, by Henry Sutton, English, 1657

Origin

England; London

Maker

Sutton, Henry

Class

dials

Earliest Date

1657

Latest Date

1657

Inscription Date

1657

Material

metal; brass

Dimensions

length 259mm; breadth 44mm

Special Collection

Provenance

On loan from Trinity College, University of Cambridge from 1951.

Inscription

(1) ‘H: Sutton fecit . 1657 .’ (obverse)
(2) Trin: Coll: Cant: Ex Dono Tho: Scattergood Arm .

Description Notes

Obverse:
degree scale divided [0] - 180˚, numbered by 10˚, subdivided to 5˚; 10˚ - 20˚ subdivided to 1˚; 20˚ - 160˚ subdivided to 1˚ and to 30´; 160˚ - 170˚ subdivided to 1˚.
Scale marked ‘Sol’ (Solar altitude?) divided [0] - 90˚, numbered by 10˚, subdivided to 5˚; 0 - 60˚ subdivided to 1˚; 60˚ - 70˚ subdivided to 2˚.
Zodiac scale divided Cancer to Capricorn and back on the same scale;divided to sign and marked by zodiacal symbol, subdivided to 10˚; 10th degree of Cancer - beginning of Leo and 10th degree of Capricorn - beginning of Aquarius subdivided to 2˚; beginning of Leo - end of Sagitarius subdivided to 5˚ and to 1˚.
Line of Chords marked ‘Cho’, divided [0] - 60˚, numbered by 10˚, subdivided to 5˚ and to 1˚.
Line of Sines , marked ‘Sin’, divided [0] - 90˚, [0] - 75˚ [30´], numbered by 10˚, subdivided to 5˚; first 0 - 80˚ and second 0 - 20˚ subdivided to 1˚; second 30˚ - 50˚ subdivided to 1˚ and to 30´; remainder of scale subdivided to 1˚ and to 15´.
Line of Tangents, marked ‘Tan’, divided [0] - 75˚ [45´], numbered by 10˚, subdivided to 5˚ and to 1˚; 0 - 50˚ subdivided to 30´; 50˚ - 75˚ 45´ subdivided to 15´.
Second line of tangents, marked ‘Tan’, divided [0] - 45˚, numbered by 10˚, subdivided to 5˚, to 1˚ and to 15´.
Second line of sines, marked ‘Sin’, divided [0] - 90˚, numbered by 10˚, subdivided to 5˚; 0 - 60˚ subdivided to 1˚ and to 15´; 60˚ - 80˚ subdivided to 1˚ and to 30´; 80˚ - 85˚ subdivided to 1˚.
Line of inches, marked ‘Inch’, divided [0] - 10, numbered by 1, subdivided to 0.5, to 0.1 and to 0.05.

Reverse:
line of hours, marked ‘Hours’, divided [0] - 6, numbered by 1, subdivided to 30 minutes, to 10 minutes and to 2 minutes.
Line of latitudes, marked ‘Lat’, divided [0] - 90˚, numbered by 10˚, subdivided to 5˚; 0 - 50˚ subdivided to 1˚ and to 30´; 50˚ - 70˚ subdivided to 1˚.
Line of declination and chords, marked ‘Declin Chord’, divided [0] - 90˚, numbered by 10˚, subdivided to 5˚, to 1˚ and to 30´.
Line for laying off substyle, marked ‘Substile’, divided [0] - ‘38.28’, numbered by 10˚, subdivided to 5˚, to 1˚ and to15´.
Line for laying off style, marked ‘Stile’, divided as the previous line but in the opposite direction.
Continuation of previous line, marked ‘Angle’ divided ‘38.28’ - 90˚, numbered by 10˚, subdivided as before. 90˚ also marked ‘12 & 6’.
Line for inclination to the meridian, marked ‘Inclin Merid’, divided [0] - 90˚, numbered by 10˚, subdivided to 5˚, to 1˚ and to 30´.
good condition

References

Events