Patent ID: 8794563

Claim:
A rotary apparatus comprising: processing component; a rotary bobbin fixedly attached to the processing component, the rotary bobbin being configured to mount a plurality of connectors on the rotary bobbin and the plurality of connectors being for connecting to the processing component; and a motor coupled to the processing component, the motor being operative to rotate the processing component together with the bobbin in two opposite rotary directions, wherein the rotary bobbin comprises a plurality of separate helical grooves for fitting the plurality of connectors separately into each helical groove, the helical grooves being arranged adjacent and parallel to each other in the form of a double-helix, and having a depth that allows the plurality of connectors to move inside the respective helical grooves when the rotary bobbin is rotating in the rotary directions, and the connectors are movable between a relatively loosened state, wherein a length of the connectors located inside the helical grooves is at a maximum, and a relatively tightened state, wherein a length of the connectors located inside the helical grooves is at a minimum, the connectors being located at a radius R from a center of rotation of the bobbin at one extremity of rotation in one direction in the relatively loosened state, and at a radius r from the center of rotation of the bobbin at another extremity of rotation in an opposite direction in the relatively tightened state, wherein R>r.