Ellipsograph, in wooden box

Made:
United Kingdom
maker:
Unknown

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Ellipsograph, curve drawing instrument. Top 3/4 view. Grey Background. Smith Centre Crop
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Ellipsograph, curve drawing instrument. Top 3/4 view. Grey Background
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Ellipsograph, in wooden box (see stroke/part records), unsigned, United Kingdom, 1880-1920

As circles become ellipses when viewed obliquely, the ellipse is an important shape in perspective drawing. The Society of Arts stimulated new designs of ellipsographs in the early 19th century by awarding medals for their invention. This is a simple and elegant machine. Altering the lower setting changes the size of the figure; altering the upper setting changes the eccentricity. The ellipse is then drawn by turning the handle.

Details

Category:
Mathematics
Object Number:
1945-2
Measurements:
see part records:
type:
ellipsograph
taxonomy:
  • furnishing and equipment
  • measuring device - instrument
  • ruler - measuring device
  • furnishing and equipment
  • tools & equipment
credit:
Latham, H.J.
status:
Permanent collection

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