Abstract: A blower/spray device includes a liquid tank removably mounted on a main body, and a seal located between an outlet end of an air extracting line and an outer end of a tubular air introducing member for connecting and disconnecting an air extracting device.

Abstract: In a power-driven backpack type machine including a main body having an internal combustion engine serving as a power source, a throttle lever device including a boss pivotably connected to one side of the main body an arm extending from the boss, and a throttle lever supported at a forward end of the arm for controlling the operation of the internal combustion engine. Locking means is provided for selectively lockingly securing the boss to the main body in a position in which the arm is upright and substantially parallel to the vertical longitudinal axis of the main body and in a position in which the arm extends forwardly of the main body. Resilient pressing means forces the boss against the main body with an adjustable biasing force which is adjusted by adjusting means.

Abstract: A vibration damping device for mowing machine, having an axially splittable outer sleeve and vibration damping rings received in free state by grooves formed in the inner surface of the outer sleeve. The outer sleeve is connected at its one end to an internal combustion engine, while the vibration damping rings are held by holding members which in turn are fitted around a handling tube of the mowing machine.