Dart depth gauge

Details Dart depth gauge Dart depth gauge

1977-04-11

1979-03-13

Aegerter, Richard E.

Geometrical instruments

Apparel

Laying out

33148E, A41H 100

Patent

active

041434617

ABSTRACT:
A dart depth gauge comprises two flat members pivotally connected with one another. The two members have index points which are spaced from the pivot and are movable toward and away from one another by relative pivotal movement of the members. One of the members has along one edge a scale which is calibrated in terms of pattern sizes. The other member has thereon a series of curves, each of which is identified by a breast cup size. The curves are laid out so that when the members are pivoted relative to one another to bring the calibration of a selected pattern size into coincidence with a selected cup size curve, the distance between the index points is the correct depth of dart for the selected pattern size and selected cup size.

REFERENCES:
patent: 735738 (1903-08-01), Pollett
patent: 2435606 (1948-02-01), Sadowsky

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