kitchen scale

presumed maker: Ferdinand and Carl Koch, Hanover, Germany bruine lijn

kitchen scale

This sturdy kitchen scale was presumably made by Ferdinand and Carl Koch from Hanover in Germany. There is no logo, brand or name of maker on it. My only source is Edwin Schellenberg's website Waage-Mass-Gewicht. A copy of this kitchen scale can be found there under Objekte » Waagen » Laufgewichtswaagen. The German patent DE51818 from 1889 mentioned there would be the basis for the design. At the bottom of this page are the first figures of that patent, these show a slightly different geometry. In July 1887 Ferdinand Koch already had a patent for a scale part, namely DE40124.
The scale has a long arm with a movable weight, which goes in recesses in steps of 0.5 kilograms. At the end of the long arm is a pointer that indicates the additional weight on a second double scale. The scale on the right goes from zero to 500 grams, and is subdivided per ten grams. The left scale goes from zero to 1 Pfund, this scale is also subdivided per ten grams and the values 1/5, 2/5, 3/5, 4/5, and 1 Pfund are indicated.

back of the kitchen scale

In Mass und Gewicht, the periodical of the German Collectors Association is in issue 30 of June 1994 on pp. 695 + pp 697-700 from Dirk Schmitz the article Koch's Paquet & Brief-Waage. This shows that the company Patent-Waagenfabrik Gebrüder Koch, founded in 1890, only existed until 1899.
Below are some more pictures of this special sturdy kitchen scale.

animation: unloaded and loaded with 500 grams
the movable weight on the left stays in place
[move the pointer over the photo]

animation: shifting the walking weight from zero to 0.5 kilograms
sets the pointer on the right back to zero
[move the pointer over the photo]

animation: from 0.5 to 1.5 kilograms and shifting the movable weight
from 0.5 to 1 kilograms sets the pointer at 500 grams
[move the pointer over the photo]

the scale in increments of half a kilo to ten kilos	side view	the Koch kitchen scale
a special kilo indication	the scale would be protected with a Deutsches Reich Patent	the scale on the left up to 1 Pfund and on the right up to 500 Gramm
the fine tuning knob	the fixed counterweights	the stabilization strip
sturdy cast iron parts	side view	easy connection with the stabilization strip
the first figures of patent DE51818 from 1889 in the name of Ferdinand and Carl Koch from Hanover	the Pfund sign is only partly present	the old notation for Pfund
the weighing platform is loose and can be removed immediately and is so easy to empty and to clean	the scale is very sturdy and solid	the bottom of the weighing platform with folded edges

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version: September 16, 2022