Method for the determination of area of drawings and device for

Details Method for the determination of area of drawings and device for Method for the determination of area of drawings and device for

1989-05-18

1991-08-27

Noland, Tom

Measuring and testing

Inspecting

177 50, G01B 2128, G01B 1128, G01G 1900

Patent

active

050423100

ABSTRACT:
The invention refers to a method for the determination of the area of drawings which have been drawn on paper sheet or other like drawing material and to a device for implementing the method. In the method of the invention a natural quantity and in particular the weight of the paper sheet or other drawing material is used in correlation to the surface area of the same, in order to determine a coefficient of correlation of weight per unit area of the drawing material. By means of cutting off and weighing that portion of the paper sheet or other like drawing material, one can thus and after having calculated the abovementioned coefficient of correlation of weight per unit area determine the area of the desired portion.

REFERENCES:
patent: 3264878 (1966-08-01), Balog
patent: 3405555 (1968-10-01), Wissinger et al.
patent: 3755659 (1973-08-01), Bolhuis
patent: 4441819 (1984-04-01), Takeuchi et al.
patent: 4476717 (1984-10-01), Murphy
patent: 4548285 (1985-10-01), Sells et al.
patent: 4678336 (1987-07-01), Tsunoda
patent: 4800287 (1989-01-01), Green, Sr. et al.

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