Seidel & Naumann - NeedleBar Picture Library Archive NeedleBar Picture Library Archive THE INTERNATIONAL ANTIQUE SEWING. Home Singer Sewing Machine Company DatingSerial Number List. Dating Singer Machines. These tables are taken from Singer publications; they show the dates for a particular range of serial numbers for the given plants. PLEASE NOTE: R-series was issued before J-series V-series was issued before F-series.
![]() ![]() The SuN Adder Video Seidel & Naumann Articles and Advertisements Patents Links The SuN Adder
The SuN Adder is a chain adder which was made in Germany from about 1910 until the early 1920s.My SuN Adder has serial number 10451. It comes in a nice case, and with a stylus made ofBakelite with a metal tip.
It has a register consisting of 9 parallel number wheels on a single axle. This is the mostcommon size, but there is also a 13-digit version as well as special versions for Britishcurrency. Each wheel in the register is driven by teeth attached to a chain belt that passesunderneath the wheel. On the front of the machine is an open panel which gives access to thenine chains. The visible chain links are numbered, having the digits 1 to 9 engraved on them.You can use a stylus to pull a numbered link all the way down to the bottom of the panel. Thisadds the chosen digit to that digit in the register, and the register will automatically carrywhen a digit exceeds 9.
The chains that you pull down remain in position so that you can read off the number youentered on the bottom row of the visible chain links. To add the next number you firsthave to clear the input by pressing A on the small lever at the front right ofthe machine. This releases the chains, allowing them to spring back up without affectingthe number in the register.
There is a lever in the right side of the machine next to the register. By pulling this leverforward the register can be reset.
The chains and register wheel only move in one direction, so subtraction can only be donethrough the addition of complementary numbers. On the side of the chain panel the complementarydigits are displayed. For the right hand column use the complementary digit shown on the rightof the panel, and for all the other columns use the complementary digit shown on the left.
The small lever marked M is for multiplication. If this is pressed down it will lock in placeso that input is cleared immediately without needing to press A every time.
VideoSeidel & Naumann
This adder was made by Seidel and Naumann. In 1868 in Dresden, Karl Robert Bruno Naumannzu Königsbrück founded a company based around his small mechanics workshop. There he madesewing machines similar to Singer. A year later the businessman Erich Seidel heavilyinvested in the company, at which point it was renamed Seidel und Naumann. That nameremained even after Seidel left in 1876.
As the company grew rapidly, it diversified to other products:
In 1905 they even produced a rally car, though that does not seem to have led tocommercial car production.
The XÃX calculator was based on the classic Thomas de Colmar machine,the Arithmometer, butincluded a variant with buttons instead of sliders for inputting numbers. The XÃX andthe SuN were both designed by Bernhard Carl Max Behr, who led the calculator division ofthe company. It seems he left very soon to set up his own calculator business. He died in 1917.
The company was able to rebuild after sustaining major damage in the bombing ofDresden in 1945, but then seems to have specialised in typewriters only. In 1951 itmerged with Clemens Miller AG to become VEB Schreibmaschinenwerk(e) Dresden.The 'Erika' line of typewriters was made until 1991 after which thecompany was liquidated.
Articles and Advertisements
I haven't found any adverts specifically for the SuN adder, but there are someads from the early 1910s for Seidel & Naumann's other products. The two olderDutch items are an announcement of the trademarks that S&N is about tostart selling their 'improved Singer' sewing machines in the Netherlands,and a reply notification from Singer's lawyer that they are not allowed to use theSinger name in any way to sell their machines.
PatentsHere are the patents relating to the SuN chain adder. Bernhard Behr basedhis design on the chain adder devised by Henry Goldman a decade earlier.![]() Comments are closed.
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