La Hire's Hypocycloidal Train Mechanism

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La Hire's hypocycloidal train mechanism.

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Artist

Name:
Unknown

Illustration

Subject:
Science & Technology
Technique:
Wood Engraving
Format:
Landscape (wider)

Periodical

Title:
Le magasin pittoresque, vol. 8
Author:
Collective work
Publisher:
Paris: Édouard Charton, 1840

Description:

Philippe de La Hire (1640 – 1718) was a French scientist and engineer who, among other things, worked on the theory of epicycloids.

In this device, a small wheel is driven inside a circular rack twice its diameter, by means of a brocken axis b,c,d. It found a common use in various sorts of pumps, as it allowed water or any other fluid to draw through a continuous circular movement.

The caption reads in the original French: Épicycle rectiligne de Lahire.

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