Linear scale

Details Linear scale Linear scale

1994-10-12

1996-01-30

Will, Thomas B.

Geometrical instruments

Straightedge type

Rules

33483, G01B 302

Patent

active

054872235

ABSTRACT:
A scale, such as a tape measure, is provided with a plurality of slots corresponding to graduations on the scale. The slots are alternatingly located on opposed edges of the scale, and edges of each slot are collinear with edges of opposing slots. When measuring a distance to a line or a point, the line or point will appear in only one of the slots. The slots are tapered to a point at a specific graduation.

REFERENCES:
patent: 700023 (1902-05-01), Duby
patent: 732379 (1903-06-01), Shireman
patent: 828375 (1906-08-01), Breul
patent: 844243 (1907-02-01), Breul
patent: 861799 (1907-07-01), Breil
patent: 999730 (1911-08-01), Allen
patent: 1135259 (1915-04-01), Cokely
patent: 2579664 (1951-12-01), Gleasman
patent: 2959862 (1960-11-01), Jager
patent: 4503624 (1985-03-01), Whiteford

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