Page 13 - D&T_Jan_2022

Focus on
Mechanisms

Covers all the major types of mechanisms and their
practical application.

Each mechanism is clearly explained through 3D
animations, photographs, video and text with multiple choice tests
included to test knowledge and aid revision.

Includes sections on:
Motion
• rotary • oscillating • linear
• reciprocating

Levers & Linkages
• class 1,2 and 3 levers
• reverse motion linkage
• bell cranks • parallel motion linkage
• treadle linkage • toggle clamp

Gear Systems
• simple & compound gear trains
• idler gear • bevel & mitre gears
• rack & pinion • worm &
wormwheel • helical gears
• ratchet & pawl

Pulley Systems
• Vee pulley & belt • pulley belts
• crossed belts • jockey wheels
• stepped cone pulleys

Sprocket & Chain
• sprocket & chain • derailleur gear

Cams & Followers
• cam shape & follower motion • circular cam
• pear & heart shaped cams • box & linear cams

Other Topics
• crank & slider • screw threads • lifting systems • moments
• equilibrium • torque • efficiency • mechanical advantage
• shafts & couplings • bearings
• clutches & brakes Online version: included as
• inclined plane part of the DT Resource Pack
on pages 10-11.
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