Model finishing fanners

Model finishing fanners

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The Board of Trustees of the Science Museum

Model finishing fanners, or duster

This is a model of an improved early 19th century winnower which is used for separating grain, chaff and weed seeds by means of the blast from a fan and reciprocating screens which sieve the grain but shake forward into a chute such large weed seeds as thistle heads, etc. Small weed seeds are separated at a stationary slanting sieve which holds the larger grain seeds.

Details

Category:
Agricultural Engineering
Object Number:
1928-638
Materials:
wood (unidentified) and iron
Measurements:
overall: 380 mm x 530 mm x 320 mm, 2.31 kg
type:
model - representation
credit:
On loan from The University of Edinburgh