TOY HUMMING BIRD

摘要

HUMMING BIRD A toy bird having a housing, within the housing are two sheaves mounted to a common shaft for rotation together, one of the sheaves having a larger inside diameter than the other, a first wing and a second wing disposed outside the housing, each wing being provided with a tang that passes through an opening provided in the housing and which is mounted for rotation within the housing independently of the other tang, two resilient cords, each cord passing through a separate opening provided in the housing and attached to one of the sheaves, the cord passing through the opening on the upper section of the housing being attached to the sheave having the smaller inside diameter so that when each cord is pulled with approximately equal force the housing moves towards the end of the cord attached to the sheave having the smaller inside diameter, a shaft positioned off-center to the shaft attached to the two sheaves and passing through openings provided in the tang members causing its tang members to move when the sheaves are rotated, a cylinder and a piston mounted for reciprocal movement within the cylinder, the piston being operatively connected to the shaft that passes through the two openings, a sound producing mechanism in pneumatic connection with the bottom of the cylinder so that when the bird housing is caused to be moved upwardly and downwardly by force being applied or removed from one or both of the two cords, the wings "flutter" upwardly and downwardly and a sound is emitted each time the piston reciprocates in the cylinder.