Geometrical instruments – Indicator of direction of force traversing natural media – Level or plumb – terrestrial gravitation responsive
Patent
1980-08-22
1981-12-29
Haroian, Harry N.
Geometrical instruments
Indicator of direction of force traversing natural media
Level or plumb, terrestrial gravitation responsive
33 7, G01C 912
Patent
active
043075177
ABSTRACT:
A thin, rigid plane of plastic, wood or heavy card stock approximately 9 inches on a side to define a square is arranged to engage a person's chest. A right angle 90.degree. protractor in turn is secured to the stock with the zero angle line extending along the surface of the device. A weighted pointer hangs free to indicate on the protractor the chest angle to the vertical; that is, the inclination angle of the member to the vertical which in turn determines the chest angle. This chest angle is the same angle to be provided in a control (bust) dart. In other words, this chest angle corresponds to the angle needed to be taken up in the control (bust) dart of the bodice of the pattern for a garment to bring the cross grain line of the fabric to the necessary horizontal position for a proper unwrinkled fit. Other appropriate measurements are made cooperating with the dart angle measurement described to define proper positioning for the dart, so that a proper unwrinkled fit is assured.
REFERENCES:
patent: 666190 (1901-01-01), Fontanella
patent: 933912 (1909-09-01), Matter
patent: 2137583 (1938-11-01), Orvold
patent: 3028679 (1962-04-01), Christy
Haroian Harry N.
Pastoriza Ralph B.
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