Geometrical instruments – Area integrators – Electrical
Patent
1976-08-19
1977-12-06
Aegerter, Richard E.
Geometrical instruments
Area integrators
Electrical
33194, G01B 304
Patent
active
040609057
ABSTRACT:
A gauge for accurately and quickly positioning window-shade brackets by retaining a bracket on the gauge, by magnetic attraction, at a predetermined distance from the top of the window frame to afford adequate room for the shade in its fully rolled position, while this position is marked by an instrument extending through an aperture in the bracket and a slot in the gauge along which the bracket is movable in the course of its positioning. Lineal scales on the gauge facilitate the measuring of the diameter of the window-shade in fully rolled position and the setting of the brackets on the gauge correspondingly. Apertures on the gauge are provided to render it a convenient tool for winding the springs of the window-shade rollers.
REFERENCES:
patent: 1315716 (1919-09-01), Forester
patent: 2572999 (1951-10-01), Elliott
Aegerter Richard E.
Lebowitz Samuel
Little Willis
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