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Rules

Scale Rules

 

Verulam Oval Section Scale Rules

Fully divided 300mm (also available 150mm-special order)
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H.1V/300 | 1:1 x 1:2 x 1:5 x 1:1018.75
H.2V/300 | 1:5 x 1:50 x 1:10 x 1:100 x 1:20 x 1:200 x 1:500 x 1:100018.75
H.3V/300 | 1:1 x 1:50 x 1:20 x 1:200 x 1:5 x 1:50 x 1:1250 x 1:250018.75
H.4V/300 | (6in = 1 mile) 1:1250 x 1:2500 x 1:10000 x 1:10560 18.75
H.43V/300 | (5in x 1 mile) 1:500 x 1:1250 x 1:2500 X 1:1056018.75
H.46V/300 | 1:2.5 x 1:25 x 1:33.33 x 1:125 x 1:250 x 1:75 x 1:15018.75

Verulam R.I.B.A Conversion Scales 'A' and 'B'


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H.44V/300 | 1:12 x 1:24 x 1:48 x 1:96 open divided mm full size x inch full size 1/24th fully divided18.75
H.45V/300 | 1:5ft x 1:20ft - 1:50ft x 1:100ft open divided18.75

Verulam Imperial Range

 
H.V203/12 | (6in = 1 mile) 1:500ft x 1:2500ft x 1:1250ft - 1:10560ft18.75
H.V204/12 | 1:500ft x 1:2500ft - 1/8in x 1/4in x 1/2in x 1in =1ft18.75

Rumold Plastic Triangular Scale Rule 12"


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AN.150-1/30 | 1:20, 1:25, 1:50, 1:75, 1:100, 1:1257.90
AN.150-2/30 | 1:20, 1:25, 1:33-1/3, 1:50, 1:75, 1:1007.90
AN.150-31/30 (Imperial) | 3/32, 3/16, 1/8, 1/4, 3/8, 1/2, 3/4, 1, 11/2, 3" to ft, 1/16"7.90
AN.150-4/30 | 1:100, 1:200, 1:250, 1:300, 1:400.1:5007.90
AN.150-6/30 | 1:500, 1:1000, 1:1250, 1:1500, 1:2000, 1:25007.90
AN.150-9/30 | 1:15, 1:20, 1:25, 1:33-1/3, 1:50, 1:1007.90
AN.150-DIN/30 | 1:2.5, 1:5, 1:10, 1:20, 1:1007.90

Linex Fan Scale

5 Fans giving 22 grads15cm13.60

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