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BURROUGHS CLASS-1
ADDING / BOOKKEEPING MACHINE
... The Machine can print on a PAPER SHEET ...
... OR use PAPER ROLLS instead ...
By PINCHING the right two upper levers together AND
at the same time by TILTING the CARRIAGE backward,
the CARRIAGE can be SHIFTED left & right
and CAN BE STOPPED AT 6 FIXED POSITIONS
The LENGTH OF THE PAPER SHEET can be pre-set
to activate an "END-BELL".
There are 3 LINE SPACES available.
REPEAT-Key and BELL & HAMMER was missing - Now home-made ...
Inside Views / Snapshots of the Restoration Procedure ...
T E C H N I C A L D A T A of the Mechanical Calculator BURROUGHS
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CLASS 1 ADDING / BOOKKEEPING MACHINE 7/7
Serial Number: 3-52171
Dimensions: (ca.) Width = 14" / 36 cm
Depth = 18" / 46 cm
Height = 13" / 33 cm
Weight: (ca.) 66 lb / 30 kg ( without Stand )
Mechanics: 9*9 Full-Keyboard
Rocking Segment Mechanism ( with PARALLEL Input !)
Functions Addition, Subtraction ( as 9-Complement Addition )
& Subtotal ( Register is visible on front ),
Keys: ERROR, REPEAT, TOTAL ( = Clears Register )
9 Individual CLEAR-COLUMN Keys on Top
Printing ("blind"): with Typewriter Carriage, on Paper in fixed Columns
or on ( Standard- ) Paper Rolls
Cotton Ribbon 1 3/4 " * 12 '
Registers: Input = 7 Decimals ( + 2 ID-Figures, left )
Arithmetic = 7 Decimals ( = DISPLAY )
Manufacturer:
BURROUGHS Adding Machine Co.
Detroit, Michigan / USA
1911
PRINTOUT - Example with Comments:
*********************************************
^^^^^^^^^^^^^^^^ To clear memory:
| | Press (TOTAL), Pull handle
| | Memory is clear!
| | < Max.Input = 7 decimals >
| 12 34,567.89 | Enter (1st) ID & NUMBER, Pull handle
| 23 45,678.90 | Enter (2nd) ID & NUMBER, Pull handle
| | Pull handle [ = empty line ]
| 80,246.79 | Press (TOTAL) to print sum, Pull handle
| | Pull handle [ = empty line ]
| | Press (TOTAL), Pull handle
| | Memory is clear!
| |
| 70,370.37 | Enter NUMBER, Set (REPEAT), Pull handle
| 70,370.37 | Pull handle, Release (REPEAT)
| 70,370.37 | Pull handle
| | Pull handle [ = empty line ]
| 11,111.11 | Press (TOTAL) to print sum, Pull handle
| | Pull handle [ = empty line ]
| | Press (TOTAL), Pull handle
| | Memory is clear!
| |
| | !!! A T T E N T I O N !!!
| | 8th-Digit LOST !!! < Max.Output = 7 decimals >
| |
^^^^^^^^^^^^^^^^
Have a look at "Calculating Trickies" ...
R E M A R K S :
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For SUBTRACTION 9-Complement "Addition" has to be used. For DETAILS see
the INSTRUCTIONS to the CLASS 5 CALCULATOR ...
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This impressive BURROUGHS » CLASS-1 « has three BEVELED GLASS SIDES to
show with pride its inner mechanics. Mounted on its left side is a flip-
pable METAL DOCUMENT HOLDER. The machine came with its STAND on wheels.
The stand has a flippable WOODEN DOCUMENT HOLDER on its right side. More
DETAILS ...