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Dalzenne circle by Elliott Brothers

£650
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Dalzenne circle by Elliott Brothers Dalzenne circle by Elliott Brothers Dalzenne circle by Elliott Brothers Dalzenne circle by Elliott Brothers Dalzenne circle by Elliott Brothers Dalzenne circle by Elliott Brothers Dalzenne circle by Elliott Brothers Dalzenne circle by Elliott Brothers

Dalzenne circle by Elliott Brothers

£650

An Earth Inductor (Delzenne's Circle) by Elliott Brothers of London. Circa 1910.

The rotating circle is mounted with a brass backed mirror.

The right hand side of the frame has a gilt brass circle divided by an 180 degree scale, subdivided by 90 degrees from the horizontal.

The base has an inset ivorine label: THE ELECTRICAL STANDARDIZING TESTING AND TRAINING INSTITUTION LONDON.

Height: 51 cm.

Width: 45.5 cm.

Depth: 39 cm.

 

Designed by Charles Edouard Joseph Delzenne in the 1840s, the circle is used to measure the magnitude and direction of the earth’s magnetic field.