Fusee

Description

The Fusee was invented to compensate for the reducing turning power (or Torque) of a clockwork spring as it winds down.

Features and Applications

The Fusee is essentially a conical pulley and the drive is transferred progressively from a large diameter Driver to a smaller diameter Driver with a consequent increase in Mechanical Advantage.

Cone shaped pulleys are sometimes also used in Potters' Wheels to create a variable speed drive.

Animations

• Examples from Nguyen Duc Thang's YouTube Channel 2100 Animated Mechanical Mechanisms

Variable Cone Drive - the input and output shafts are parallel and the output velocity is varied by moving the drive belt.

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Variable Cone and Disc Drive - the drive is transmitted from the top disc to the one below via a double cone roller which can be positioned to vary the output velocity.

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DT Online Buyers' Guide

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