T E C H N I C A L   D A T A   of the  Mechanical Printing-Calculator
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Model:              ALLEN-WALES 77                               7/8

Serial Number:      77-54699

Dimensions:  (ca.)  Width   =  11 " /  28 cm
                    Depth   =  17 " /  43 cm
                    Height  =   9 " /  23 cm

Weight:      (ca.)  28 lbs  /  12.5 kg

Mechanics:          6*9 Full-Keyboard

                    Black/RED Nylon Ribbon:
                    7/16" * 20'  /  11 mm * 6 m
                    Paper Roll (Standard):
                    2_1/4" * 2_3/4" * 165'  (W * D * L)
                    57 mm  * 65 mm  * 50 m  (B * D * L)

Functions:          Add, Subtract,
                    NonAdd, Repeat, Subtotal, Total

Registers:          Input       =  6 Decimals
                    Arithmetic  =  7 Decimals
                    Printing    =  8 Characters
Manufacturer:
                    ALLEN-WALES ADDING MACHINE CORP.
                    Ithaca,NY / USA
                    1940




H O W   T O   U S E   the  ALLEN-WALES 77
*****************************************

The FUNCTIONS of the LEVERS  ( named a, b, c, d, e )  are ...

   LEVERS :   a          b         c        d        e
   ========================================================
     up   |  Total   | NonAdd | Subract | Repeat | NoPrint
     .    |   .                                      .
    down  | Subtotal |   .    |   Add   |   .    |  Print
   ========================================================
    Init  :  middle  |  down  |  down   |  down  |  down

ADDITION:
---------
Everytime a number is entered and the handle is pulled, the
number is printed and added to the content of the memory.

RESET KEYBOARD:
---------------
If a wrong figure is entered in a column, repeat with the
right figure. To clear the keyboard push the green button (C).

REPEAT:
-------
To enter the same number more than once, set lever [d] = up
before pulling the handle. The keyboard will not be cleared
after releasing the handle.

SUBTRACTION:
------------
To enter a negative number, set lever [c] = up before pulling
the handle. ( It is possible to repeat negative numbers. ) 

S SUBTOTAL:
-----------
The cumulated sum will be printed when lever [a] = down
before pulling the handle. The memory will hold the actual
sum after releasing the handle.

* TOTAL:
--------
The total sum will be printed when lever [a] = up before
pulling the handle. The memory will be cleared after releasing
the handle.

# ID-NUMBERS:
-------------
An ID-Number can be entered when lever [b] = up (# NonAdd).
This input is not registered in the memory. 

NO-PRINT:
---------
Because the calculator has a display, showing the actual
content of the memory, it is possible to use the machine
without printing by setting lever [e] = up.


PRINTOUT - Example                     with Comments:
*****************************************************

^^^^^^^^^^^^^^^^^
|            *  |   Set a = up [* Total], Pull handle
|               |   to clear memory.
|               |                    < Max.Input = 6 decimals >
|   6,543.21    |   Enter (1st) number, Pull handle
|   7,654.32    |   Enter (2nd) number, Pull handle
|  14,197.53 S  |   Set a = down [S Subtotal], Pull handle
|               |   to print cumulated sum.
|               |   Set c = up [- Subtract],
|       1.23 -  |   Enter (neg.)number, Pull handle [printed RED]
|               |
|  14,196.30 S  |   Set a = down [S Subtotal], Pull handle
|               |   to print cumulated sum.
|               |
|       4.56    |   Set d = up [Repeat], Enter number, Pull handle
|       4.56    |   Set d = down, Pull handle
|               |
|  14,205.42 *  |   Set a = up [* Total], Pull handle
|               |   to print total sum.
|               |                   < Max.Output = 7 decimals >
|               |
|            *  |   Set a = up [* Total], Pull handle
|               |   Memory is clear.
|               |
|               |   Set b = up [# NonAdd],
|        .47 #  |   Enter ID #47, Pull handle
|      67.89    |   Enter value, Pull handle
|               |   Set b = up [# NonAdd],
|        .11 #  |   Enter ID #11, Pull handle
|      54.32    |   Enter value, Pull handle
|     122.21 *  |   Set a = up [* Total], Pull handle
|               |   to print total sum.
|               |
|            *  |   Set a = up [* Total], Pull handle
|               |   Memory is clear.
|               |
|        .12    |   Enter number
|        .24 -  |   Enter (larger negative) number [printed RED]
|  10,099.88 *  |   Negative sum = COMPLEMENT (ignore leading figs)
|               |
^^^^^^^^^^^^^^^^^
                    Have a look at "Calculating Trickies" ...

R E M A R K S   T O   R E S T O R A T I O N :
=============================================
The calculator came with blocked  keys & levers and a non-functional
handle.  Because the case  can only be lifted when  levers [a] & [b]
are to move in the middle,  lever [b]  had to be bent to fit through
the slot. It should never bent back to made  maintenance accessible.

To open the cover: Remove (1st) the ribbon cover, (2nd) the printing
unit, (3rd) the four screws holding the cover.  The ClrKbd(C) button
mechanic is connected with the cover!

impressum:
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© C.HAMANN       http://public.BHT-Berlin.de/hamann         04/14/11