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 MONROE   Model-1 Have a look at OLDER VERSIONS

NO LONGER ALIVE   (*)
Treated as a Terrorist on its Flight to Germany in 2003
 ``` TECHNICAL DATA of the Electro-Mechanical Calculator MONROE »Model-1« *************************************************************************** Model: LA5-160 Serial Number: 582612 ( grey/grey ) Dimensions: (ca.) Width = 11_1/2" / 29 cm Depth = 11 " / 28 cm Height = 6_1/2" / 17 cm Weight: (ca.) 14 lbs / 6.5 kg Power Supply: 110 - 135 V AC / DC Mechanics: 8*10 Full-Keyboard Split-Stepped Drum / Geteilte Staffelwalze  10s Carry Mechanism Counter Stepping Mechanism + Animation Functions: Add, Subtract, Multiply, Divide Division-Automatic! Registers: Input = 8 Decimals Counter = 8 Decimals (NO Carry; Neg.Figures RED) Arithmetic = 16 Decimals Manufacturer: MONROE Calculating Machine Co. Orange, New Jersey / USA 1960 H O W T O U S E the MONROE »Model-1« ******************************************** BEFORE STARTING A TASK: ----------------------- RELEASE the red REPEAT-Button (R) by pressing the red button () above. CLEAR the KEYBOARD by pressing the lower right red Button (0). CLEAR the COUNTER unit by turning the carriage crank clockwise. CLEAR the ARITHMETIC unit by turning the same crank counter-clockwise. Lift and shift the CARRIAGE to the far left ( = POSITION 1). ADDITION & SUBTRACTION: ----------------------- Example: 123 + 45 - 6 = 162 ADD: Enter the first number (123) in the far right columns. Press the PLUS-key (+) to transfer the number into arithmetic unit. The counting unit displays the figure 1. Enter the second number (45). Press the PLUS- key (+) to add the number. The arithmetic unit displays the intermediate sum (168) and the counting unit displays the figure 2. SUBTRACT: Enter the third number (6). Press the MINUS-key (-). 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. Press the right red REPEAT-Button (R). Enter the multiplicand (123) in the far right columns. The multiplicator (45) has two digits, so the arithmetic unit is moved to position 2 with a clockwise turn of the T-Handle in front. Repeat pressing the PLUS-key (+), until the first figure of the multiplicator (4) will appear in the 2nd position of the counter unit. Move the arithmetic unit with the T-Handle to position 1. Repeat pressing the PLUS-key (+), 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 keyboard, the multiplicator (45) is in the counter unit and the result (5535) is in the arithmetic unit. DIVISION: --------- Example: 22 : 7 = 3.1428571 Remainder 3 Division requires 3 steps: (A) To Set the Dividend into Arithmetic Unit: ----------------------------------------- For the maximum number of decimals, pull out the arithmetic unit to the far right position. Enter the dividend (22) in the far right columns. Press the PLUS-key (+) to transfer into arithmetic unit. (B) To Set the Divisor in the Keyboard: ----------------------------------- Clear the counter unit by turning the carriage crank clockwise. Enter the divisor (7) below the dividend (22). Press the right red REPEAT-Button (R). (C) To Divide: ---------- Set the upper left red toggle lever to divide (:) and the machine will calculate all decimals (and moves the carriage) automatically. The result (3.1428571) is in the counter unit ( in RED ), and the remainder (3) is in the arithmetic unit. The divisor (7) stays in the input unit, therefore an additional decimal can be estimated ... ( 4, cause 4 x 7 = 28). REMARKS about R E S T O R A T I O N . . . "...Yahooo...!!!" =========================================================================== This machine was destroyed in 2003 on its flight to Germany by the crude handling of the "AIRPORT SECURITY" in SanFrancisco or Paris Airports. The machine was taken out of its secure shock-proof packaging and put back in the box without the wrappings. The carrier was able to move during transit and destroyed its gearing system. The response of AIR FRANCE was "That's not our fault..." - NO COMPENSATION! As a WARNING FOR OTHER COLLECTORS I left the message "NO LONGER ALIVE ..." (*) BUT luckily, there was a "DONATOR": My friend Cliff found an older » MONROE Model-1 « - It was not working and did not have automatic division. But I was able to use it to perform an "ORGAN TRANSPLANT" ... ... After hours of work (the gear distances were slightly different) the "Operation" was successfully completed: THE MACHINE IS NOW WORKING AGAIN ! Have a look at the HOME-MADE POWER PLUG for 220 VAC ... PS.: The Picture on the 1 US\$ Note is George Washington impressum: *************************************************************************** © C.HAMANN http://public.beuth-hochschule.de/~hamann 03/14/07 ```