DISK
letter scale

maker: Ideee Design GmbH, Germany
bruine lijn
letter scale, maker Ideee Design GmbH
DISK © letter scale
 

This letter scale is an invention of Ernst E. Esch from Wuppertal, Germany. Ideee Design GmbH is the assignee of the European patent, with the number EP 0056168, made public in July 1982. The name of this design is molded at the back: DISK Briefwaage. Almost the complete scale is made of plastics. Only the little spring of the letter clip is made of steel. The patent figures also show that above 50 grams the owner's finger looks to be in a guillotine hole. Luckily the edges aren't sharp. The range is 100 grams. The weight limits of the postal rates are clearly indicated at this scale. A few intermediate values are marked by a single dot: 30, 40, 60, 70, 80, and 90 grams. The patent figure doesn't show these dots. Below some more photos of this good-looking letter scale.
 

patent figure
figure 3 of the patent
 
click to start animation
animation of
scale movement
click to start
folded scale
scale folded into
storage position
 
figure 4 of patent
figure 4 of patent
 
 

detail 1
letter clip attached to
braided nylon string
 
detail 2
name of this design: DISK
 
 
detail 3
letter clip
 
 
detail 4
good looking design
 
detail 5
guillotine at 100 grams
 
detail 6
difficult to hold
 
bruine lijn
« Sol collection: part 3«       © copyright André Sol version: April 25, 2004