DMM 63898
Museum: Deutsches Museum, Munich
Title: Sector by N. Bion
Inventory number: DMM 63898
Signature: "N. Bion A Paris."
Date: End of the 17. century/ beginning of the 18.
Material: Brass
Dimensions: Lenght of limb: 165 mm; width: 16 mm
Description: See Schneider, 1970, p. 87.
Preliminary examination of the metallic scales: The front presents a metallic line with 6 values. Planetary symbols on the metal scale, indicated a "Les Metaux". Two other scales, each on a face, when the sector is opened at 180 degrees, on the border. Called respectively "poids des bouletz" and "Calibres des pieces".
References: Schneider, Ivo: Der Proportionalzirkel: Ein universelles Analogrecheninstrument der Vergangenheit. Deutsches Museum: Abhandlungen und Berichte. 38. Jahrgang 1970, Heft 2. München, Düsseldorf 1970, p. 87.
Maurice, Daumas: Les instruments scientifiques aux XVIIe et XVIIIe siecle. Paris, 1953, p. 109f.
Measurements of Scales (in mm)
"Les Metaux"
☉ [Sun, Gold] |
118,5 | |
♄ [Saturn, Lead] |
140 | |
☽ [Moon, Silver] |
145,5 | |
♀ [Venus, Copper] |
152 | |
♂ [Mars, Iron] |
158 | |
♃ [Jupiter, Tin] |
162,5 |
"Calibres des pieces"
1/4 | 33 |
1/2 | 42 |
1 tt | 53 |
2 | 67 |
3 | 77 |
4 | 84 |
5 | 91 |
6 | 97 |
7 | 12 |
8 | 106 |
9 | 110,5 |
10 | 114,5 |
12 | 121 |
15 | 130,5 |
20 | 144 |
25 | 155 |
30 | 165 |
35 | 174 |
40 | 181 |
45 | 188 |
50 | 195 |
55 | 201 |
60 | 207 |
64 | 212 |
"poids des bouletz"
1/4 | 32 |
1/2 | 40,5 |
1 tt | 51 |
2 | 65 |
3 | 74 |
4 | 81,5 |
5 | 88 |
6 | 93 |
7 | 98 |
8 | 102 |
9 | 106,5 |
10 | 110 |
15 | 126 |
20 | 139 |
25 | 149,5 |
30 | 159 |
35 | 167 |
40 | 175 |
45 | 182 |
50 | 188,5 |
55 | 195 |
60 | 200 |
64 | 205 |