Abstract: A spherical object transport apparatus of the invention brings a spiral stream into contact with a first atmosphere containing a spherical object, selectively sucks the first atmosphere outward so as to engulf in the spiral stream for diffusing the first atmosphere outward, guides the spherical object so that the spherical object passes through the center of the transport apparatus, supplies a second atmosphere to the spherical object, and sends the spherical object together with the second atmosphere to the following step.

Abstract: A spherical object transport apparatus of the invention brings a spiral stream into contact with a first atmosphere containing a spherical object, selectively sucks the first atmosphere outward so as to engulf in the spiral stream for diffusing the first atmosphere outward, guides the spherical object so that the spherical object passes through the center of the transport apparatus, supplies a second atmosphere to the spherical object, and sends the spherical object together with the second atmosphere to the following step.

Abstract: The present invention relates to improvements in a portable chain saw wherein power of a power device like a motor separated from the body of the chain saw is transmittted to a driving means of the chain saw by way of a flexible shaft, thus the body of the chain saw being small-sized and lighter at weight. Further, in the portable chain saw body an overload protection means is provided preceding to means transmitting power to a driving roller for driving a chain cutter so that no more power than a predetermined load is transmitted to a driving means of the chain saw and only power of the predetermined load is done thereto.