SOLO
letter scale

maker: unknown bruine lijn

Solo scale

This (letter) scale is not complete: the plate, or the bowl, is missing. A few different forms of bowls can be seen at the pictures at the bottom of this page. I don't know whether these forms are original or not. The Solo has four! pendulum arms. The two light ones are permanently interconnected. At choice one couples one or both other loose heavy pendulums to the lighter arms. This setup makes the SOLO a scale with three ranges of weighing: 250 grams (no arms joined), 1.5 kg (= one heavy pendulum arm -at the front- coupled) and 3 kg (= both heavy pendulums coupled). The red chart of 250 grams is used when no heavy pendulum arms are coupled. The layout of the chart is odd, mostly the heavier range is placed at the outer edge. The pictures illustrate very well that cleaning with water and soap and rust removing, followed by

still dusty and dirty

animation: positions of the
indicator and joined
pendulums

the cleaned scale

waxing, result in an enormous improvement of the appearance. In Meten & Wegen, 2002, September 2002, no. 119, at pages 2824-2825, R.J. Kok gives also a description of the Solo. He as well doesn't know the origin. At the chart of 250 gram each gram has a stripe. At both other charts there is a stripe per 25 grams. Below some more pictures of this SOLO letter? scale.

rusty and dirty	conical pin of bowl	rust removed
still dirty	cleaned adjusting foot	cleaned
dirty frame	dirty adjusting foot	cleaned frame
still dirty	still dirty	cleaned
still dirty frame	four pendulum arms	three charts at the scale
name of the model	uncoupled pendulums	uncoupled pendulums
large aluminum bowl	flat aluminum pan	large aluminum bowl

« Sol collection: part 3«

version: April 25, 2004

SOLOletter scale

SOLO
letter scale