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Faber-Castell 8/10
(26.4cm (Ø 8.4cm) Scale D & C scales)
Click on the images for enlargements.
Faber-Castell 8/10 (1969) |
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Summary
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System:
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Circular
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Specialization:
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-
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Type:
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Single Sided
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Material:
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Plastic
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Facings:
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-
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Scale Length:
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26.4cm (Ø 8.4cm)
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No of Scales:
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11
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Front Length:
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Ø 120mm (face)
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Front Width:
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-
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Language:
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German
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Origin:
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Germany
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Date:
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1969, December
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Features/Notes:
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-
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Scales (colours as shown)
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Front:
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K, A, L, D [ C, CI, B, T1, T2, S, ST ]
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Back:
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-
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Labels Left:
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X3, X2, lgX, X [ X, 1/X, X2, <tan0.1X cot, <tanX cot, <sin0.1X cos, <arc0.01X
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Labels Left:
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-
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Labels Right:
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K, A, L, D [ C, CI, B, T1, T2, S, ST ]
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Labels Right:
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-
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Style:
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N, R, N, R [ R, N, R, N, N, N, N ] (N=Normal, R= Railway track)
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Typeface:
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Sans-sefif
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Extensions:
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-
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Decimals:
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Tenths between 1 & 2 on CI, C & D
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Gauge Marks:
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p (3.14) on A, B, CI, C & D
M (1/p=0.318) on A & B
C (1.13) on C
C1 (3.57) on C
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Rulers:
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-
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Features/Notes:
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Scales are listed outside to inside.
A & B feature a yellow background.
C & D feature a mint green background.
numbers are printed in red on CI.
cos numbers are printed in red on S.
cot numbers are printed in red on T1 & T2.
Scale labels are pinted in boxes, coloured as labels.
1 index on C & D printed in black trianular symetrical pointers.
Scale lengths (mm): 336, 314, 291, 263 [ 263, 235, 212, 188, 165, 142, 118 ]
Scale Ø (mm): 107, 100, 92.5, 83.8 [ 83.7, 74.8, 67.5, 59.8, 52.6, 45.3, 37.5 ]
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Construction
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Stock:
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White plastic 'stock' encloded with ribbed green plastic edge grip.
Rebate for 'slide' to fit flush with front face.
Overall Ø x thickness (mm) - 125 x 7
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Slide:
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Single sided
White plastic 'slide' mounted flust with front face.
Fixed with steel central pivot and machine screw.
Ø (mm) - 83.7
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Cursor:
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Clear plastic 45° arc circular section with centre boss.
Fixed to centre pivot and screw with 9mm round nut.
Spring washer.
Single full length centre hairline, labelled "kW" at the top and "d" at the bottom.
Two short broken non-equidistant hairlines for A & B scales, left of centre labelled "q" on both scales, right of centre labelled "PS" on both scales.
Two short non-equidistant hairlines for C & D scales, left of centre labelled "kW", right of centre labelled "PS".
Radius (mm) - 59
Max width x depth (mm) - 48 x 3
Boss Ø (mm) - 15mm
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Printing (colours as shown)
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Stock:
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On back:
Multiplication & division example settings.
Tables of constants and formulae.
"BASF-Farbstoffe" in centre to right of centre screw.
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Slide:
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Oval "FABER-CASTELL" logo with shield in centre white space opposite index, with "8/10" to the left and "MADE IN GERMANY" arcing to the right.
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Cursor:
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Labels:
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None
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Instructions
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None
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Box (colours as shown)
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Style:
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Circular
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L x W x D mm:
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Ø 130 x 12
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Material:
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Leather
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Colour:
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Black
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Construction:
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Pocket' comprising front & back panel with thickness stip in lower half and zipped access in top half.
Oval brass zipper tab.
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Printing:
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Oval "FABER-CASTELL" logo with shield in centre of front bottom half with "8/10" underneath.
"BASF-Farbstoffe" impressed in centre of front .
"GERMANY" impressed near bottom centre of back.
Oval "FABER-CASTELL" logo with shield embossed on zipper tab.
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Labels:
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None
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Detail Images
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Click on the images for enlargements.
Click on the images for enlargements.
Click on the images for enlargements.
Click on the images for enlargements.
Click on the images for enlargements.
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