TECHNICAL  DATA  of  the  Mechanical  Calculator   » T.I.M. «   MODEL III
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                                              ( = " TIME - IS - MONEY " )

Serial Number(s):    Left = 8901 ;  05669 = Right  ( under the carriage )

Dimensions:   (ca.)  Width   =  21_5/8" /  55 cm
                     Depth   =   6    " /  15 cm
                     Height  =   6_5/8" /  17 cm

Weight:       (ca.)  24 lbs  /  11 kg

Mechanics:           StepDrum / Staffelwalze

Functions:           Add, Subtract, Multiply, Divide

Registers:           Input       =   8 Decimals (= Sliders )
                     Counter     =   9 Decimals (NO Carry; Neg.Figs RED)
                     Arithmetic  =  16 Decimals
Manufacturer:
                     LUDWIG SPITZ & Co. 
                     Berlin / Tempelhof
                     Germany
                     1910

H O W   T O   U S E   the   » T.I.M. «  -  Model III 
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R E M :  The COUNTER-FIGURES (w/r) follows the  "FELIKS-TYPE"-Scheme ...

BEFORE STARTING A TASK:
-----------------------
Turn the CRANK to idle POSITION (see picture).
CLEAR the whole INPUT FIELD by pulling the MOST RIGHT LEVER on front.
  ( ALL COLUMNS LEFT OF the used Clear-Lever will be cleared !)
CLEAR the ARITHMETIC & COUNTER UNIT by
  o  LIFTING the CARRIAGE and ...
  o  ... PULL to the RIGHT: UPPER Handle & LOWER Handle
LIFT & SHIFT the CARRIAGE to the far left ( = POSITION 1).

ADDITION & SUBTRACTION:
-----------------------
Example:   123 + 45 - 6  =  162

ADDITION:  SET the LEFT LEVER to ADD/MULT.
Enter the first number (123) in the far right columns. Make a (clockwise
only!) turn with the crank to transfer the number into arithmetic unit.
The counting unit displays the figure 1. Enter the second number (45).
Make a turn with the crank to add the number. The arithmetic unit displays
the intermediate sum (168) and the counting unit displays the figure 2.

SUBTRACTION:  SET the LEFT LEVER to SUB/DIV.
Enter the third number (6). Make a turn with the crank. The arithmetic
unit displays the result (162) and the counting unit is decreased by 1.

REMARK:     NEGATIVE RESULTS are displayed in the arithmetic unit
            as the COMPLEMENT of the next higher 10, 100, 1000, ...

            Example:   -12  =  99...9988

MULTIPLICATION:
---------------
Example:    123 x 45  =  5535

CLEAR counter and arithmetic units.  SET the LEFT LEVER to ADD/MULT.
Enter multiplicand (123) in the far right of the input unit. The multipli-
cator (45) has two digits, so the arithmetic unit is moved to position 2 
by LIFT & SHIFT the CARRIAGE. Repeat making turns with the crank, until
the first figure of the multiplicator (4) will appear in the 2nd position
of the counter unit.  Move the arithmetic unit by  LIFT & SHIFT  to
position 1. Repeat making turns with the crank, until the second figure
of the multiplicator (5) appears in the 1st position of the counter unit.
The multiplication is done: The multiplicand (123) stays in input unit,
the multiplicator (45) in the counter unit and the result (5535) is in
the arithmetic unit.

DIVISION:
---------
Example:   22 : 7  =  3.14285714  Remainder 2

Division requires 3 steps:

(A) To Set the Dividend into Arithmetic Unit:
    -----------------------------------------
    SET the LEFT LEVER to SUB/DIV.
    For the maximum number of decimals, LIFT & SHIFT the arithmetic
    to the far right position and ENTER the DIVIDENT (22) in columns
    10 & 9 of the ARITHMETIC with the affiliated conic knobs.

(B) To Set the Divisor in the Keyboard:
    -----------------------------------
    CLEAR COUNTER & INPUT unit.
    Enter the divisor (7) in the far right column.

(C) To Divide:
    ----------
    Make turns with the crank until the arithmetic shows an "underflow".
    SET the LEFT LEVER to ADD/MULT, make a turn with the crank. SET the
    LEVER back to SUB/DIV.  LIFT & SHIFT  the carriage to the next left
    position. Repeat this procedure until required number of decimals ...

    The result (3.14285714) is in the counter unit ( in RED ), and the
    remainder (2) is in the arithmetic unit. The divisor (7) stays in the
    input unit, therefore an additional decimal can be estimated ...
    ( 2, cause 2 x 7 = 14 ... The sequence repeats !)

                     Have a look at "Calculating Trickies" ...
                     Have a look at the Maintenance Procedure ...
impressum:
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© C.HAMANN           http://public.BHT-Berlin.de/hamann            10/14/16