scale with bakelite plate | This letter scale has no mark at all. The frame is aluminum. In 1886 aluminum was made electrolytically for the first time. Most parts of the mechanism are magnetic steel. The round plate with two ribs is bakelite. This was invented by the Belgian (later American by naturalization) chemist Baekeland and is dated to 1909. For more bakelite information and details visit the virtual Bakelite museum. The scale has a turn-over counterweight. With the counterweight at the lower position, the 500 grams chart is to be used. With the counterweight in the upper position, the other range till 100 grams is to be used. This scale has a zero adjustment screw. The one mounted probably is not the original one. I don't know the maker or the country of origin. The realized direction of reading at the letter scale is logical: from left to right. The scale is positioned concav for easy reading. | rear view of scale |
animation in 100 grams range click to start |
animation: the two counterweight positions -in reality this movement is a rotation- | animation in 500 grams range click to start |
The chart up to 100 grams has a division mark for every gram. At the 500 grams chart, a division stripe per 10 grams is given. Each area of ten grams is divided into two by a chequered band at the lower edge of the chart. There are little horizontally placed arrow-heads towards the indicated values. This scale does not qualify for the finals in a beauty contest for letter scales. The parts of the mechanism are largely oversized and detonating coarse. In short: an ugly scale.
Below some more detailed photos of this letter scale.
division stripes per gram + indicating arrow-heads |
strange edge geometry |
shining bakelite plate |
concav-positioned chart |
big-boned mechanism |
ugly oversized mechanism |
aluminum frame |
big-boned mechanism | ugly zero leveling |
« Sol collection: part 1« | © copyright André Sol | version: April 18, 2004 |