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--- c1-13 [2013/01/25 22:51]
clodoveu [Mechanical calculators]
+++ c1-13 [2024/08/06 13:14] (current)
clodoveu
@@ Line 1: / Line 1: @@
 ===== Mechanical calculators: FACIT C1-13 =====
+* [[etc|Back to Offline Hours]]
+* [[calc|Back to Mechanical Calculators]]
+I purchased this machine at an online auction site in February 2011. It was in quite good condition, apart from the natural deterioration of some rubber fixtures. Except for re-chrome plating the external levers, I kept its original look, including part of a sticker in the back from a maintenance shop in Belo Horizonte, Minas Gerais, Brazil.
+Its mechanism, however, was hardened by the deterioration of oils and greases used in its lubrication from back in the 1960s and possibly the 1970s. I did a complete disassembly, cleaning and reassembly, along with a (modern) lubrication, and the machine is back in prime condition.
+This machine was manufactured in about 1965 ([[http://www.boselli.com.br/museu/Facit%20C1%20F.htm|ref]]), at FACIT's unit in Juiz de Fora, Minas Gerais, Brazil. Later machines had a plastic cover, but this one is in die-cast metal.
 **Have a mechanical calculator stored somewhere, and want to get rid of it? Send it to me!**
-**Disassembly, cleaning and reassembly of a 1968 FACIT C1-13 s/n B-82656**
+**Disassembly, cleaning and reassembly of a c.1965 FACIT C1-13 s/n B-82656**
+Disassembled parts
+{{ http://www.dcc.ufmg.br/~clodoveu/files/Images/FACIT-C1-13/Small-0000.jpg | Disassembled parts}}
+Base plate and keyboard
+{{ http://www.dcc.ufmg.br/~clodoveu/files/Images/FACIT-C1-13/Small-0019.jpg | Base plate and keyboard}}
+Right-hand side plate
+{{ http://www.dcc.ufmg.br/~clodoveu/files/Images/FACIT-C1-13/Small-0022.jpg | Right-hand side plate}}
+Left-hand side plate
+{{ http://www.dcc.ufmg.br/~clodoveu/files/Images/FACIT-C1-13/Small-0024.jpg | Left-hand side plate}}
+Division mechanims and carry lever detent bar
+{{ http://www.dcc.ufmg.br/~clodoveu/files/Images/FACIT-C1-13/Small-0026.jpg | Division mechanism and carry lever detent bar}}
+Accumulator and counter registers
+{{ http://www.dcc.ufmg.br/~clodoveu/files/Images/FACIT-C1-13/Small-0029.jpg | Accumulator and counter registers}}
+Pinwheel rotor installed
+{{ http://www.dcc.ufmg.br/~clodoveu/files/Images/FACIT-C1-13/Small-0030.jpg | Pinwheel rotor installed}}
+Front view
+{{ http://www.dcc.ufmg.br/~clodoveu/files/Images/FACIT-C1-13/Small-0032.jpg | Front view}}
+Carry rotor
+{{ http://www.dcc.ufmg.br/~clodoveu/files/Images/FACIT-C1-13/Small-0033.jpg | Carry rotor}}
+Masks and indicators
+{{ http://www.dcc.ufmg.br/~clodoveu/files/Images/FACIT-C1-13/Small-0034.jpg | Masks and indicators}}
+Finished
+{{ http://www.dcc.ufmg.br/~clodoveu/files/Images/FACIT-C1-13/Small-0037.jpg | Finished}}
+Rear view
+{{ http://www.dcc.ufmg.br/~clodoveu/files/Images/FACIT-C1-13/Small-0039.jpg | Rear view}}
+Bottom view
+{{ http://www.dcc.ufmg.br/~clodoveu/files/Images/FACIT-C1-13/Small-0043.jpg | Bottom view}}
+**More about this machine**
+[[http://www.johnwolff.id.au/calculators/Tech/FacitC1-13/C113.htm | Technical description]]
+[[http://www.johnwolff.id.au/calculators/Tech/FacitC1-13/C113Rebuild.htm | Rebuilding the FACIT C1-13]]
+[[http://public.beuth-hochschule.de/~hamann/facit/f-13/index.html | Operation ]]
+[[http://www.johnwolff.id.au/calculators/Facit/Facit.htm | The evolution of FACIT calculators]]
+[[http://www.youtube.com/watch?v=YXMuJco8onQ | Video: how pinwheel calculators work]]
+[[https://www.youtube.com/watch?v=QJPMIjVGzd0 | Video: the downfall of FACIT]]
+[[https://www.youtube.com/watch?v=JQ8T8ZvzTF4 | Video: timelapse reassembly of a FACIT C1-13]]
-{{http://www.dcc.ufmg.br/~clodoveu/files/Images/Small-0000.jpg | Disassembled parts}}
+[[https://www.youtube.com/watch?v=o-PB3q3UknE | Video: restoration of a FACIT C1-13]]
-{{http://www.dcc.ufmg.br/~clodoveu/files/Images/Small-0019.jpg | Base plate and keyboard}}
-{{http://www.dcc.ufmg.br/~clodoveu/files/Images/Small-0022.jpg | Right-hand side plate}}
-{{http://www.dcc.ufmg.br/~clodoveu/files/Images/Small-0024.jpg | Left-hand side plate}}
-{{http://www.dcc.ufmg.br/~clodoveu/files/Images/Small-0026.jpg | Division mechanism and carry lever detent bar}}
-{{http://www.dcc.ufmg.br/~clodoveu/files/Images/Small-0029.jpg | Accumulator and counter registers}}
-{{http://www.dcc.ufmg.br/~clodoveu/files/Images/Small-0030.jpg | Pinwheel rotor installed}}
-{{http://www.dcc.ufmg.br/~clodoveu/files/Images/Small-0032.jpg | Frontal view}}
-{{http://www.dcc.ufmg.br/~clodoveu/files/Images/Small-0033.jpg | Carry rotor}}
-{{http://www.dcc.ufmg.br/~clodoveu/files/Images/Small-0034.jpg | Masks and indicators}}
-{{http://www.dcc.ufmg.br/~clodoveu/files/Images/Small-0037.jpg | Finished}}{{http://www.dcc.ufmg.br/~clodoveu/files/Images/Small-0039.jpg | Rear view}}{{http://www.dcc.ufmg.br/~clodoveu/files/Images/Small-0043.jpg | Bottom view}}

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c1-13.1359161496.txt.gz · Last modified: 2013/01/25 22:51 by clodoveu

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