Gears 1 and 2 rotate about fixed axes A and B. Gear 1 has two teeth b. Gear 2 has teeth a of rectangular shape. When gear 1 rotates continuously, gear 2 rotates only during the periods that a tooth b engages a tooth a. To each revolution of gear 1, gear 2 turns through an angle equal to ϕ=4π/z₂ where z₂ is the number of teeth of gear 2. In a full revolution gear 2 has z₂ dwells. An impact occurs at the instant teeth a and b come into engagement.
$2366$SG,D$