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MEISSNER - VARIANT   ( 25 cm Scales )



MEISSNER KG, Dresden / (GDR) Germany                     (1964)
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                                                    VERSION (B)

S C A L E S   of  the   M E I S S N E R    » VARIANT «   DUPLEX
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Front Side            [ inverse / RED ]               Back Side
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T       tan(0.1X); [cot(0.1X)]              L        lgX
K       X3                                  LL1      exp(0.01X)
A       X2                                  DF       πX
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B       X2                                  CF       πX
[CI]    [1/X]                               [CIF]    [1/πX]
C       X                                   C        X
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D       X                                   D        X
[P]     [sqrt(1 - (0.1X)2)]                 LL2      exp(0.1X)
S       sin(0.1X); [cos(0.1X)]              LL3      exp(X)

R E M A R K S :                      (  1° = 60' ;   1' = 60" )
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The  TRIGONOMETRIC SCALES  are  divided  in  MINUTES  & SECONDS

There are 2 Versions in the Collection ...
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Newer Version (B)
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Remarkable is  ( right on the slider )  »GERMANY« ( NOT »DDR« ) 
The newer cursor has  3 hairlines on  A/B-Side  and 1 opposite. 
Only the DF/CF-Side of the SR has  "Connector-Blocks".  The  SR
came in a light-brown cardboard case.

Older Version (A)
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The older ( metal block ) cursor has  4 hairlines  on  A/B-Side
(Diameter/Area-Rel.  & "PS" on A/B),  and  2 hairlines opposite
("360" on CF/DF).  "Connector-Blocks"  are  on  both  sides ...

   
   

The slide rule came in a dark-brown cardboard case.

                  Historical Remarks ...
impressum:
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© C.HAMANN  http://public.beuth-hochschule.de/~hamann  07/07/13