around the axis of the rivet 16 within slot 17 is a pin 18 that is attached to the handle 10 when the traverse control rod 11 is pulled outward away from the handle or is pushed inward along the handle this in turn pulls or pushes the fingers 12 the fingers 12 move inward and outward and this causes the pin 18 to be in different positions along the slot 17 if the slot 17 is straight then the finger will just move inward and outward when pushed back and forth by the traverse control rod 11 however if the slot 17 is curved when the traverse control rod 11 is pulled or pushed the stationary pin 18 moves relative to the slot 17 causing the fingers 12 to rotate on rivet 16 and thus causes the finger not only to move into and out of the handle but also to move in a horizontal plane if all of the fingers 12 have a different slot arrangement then as the traverse control rod 11 is pulled inward and outward these fingers would spread to produce a fan like configuration in the preferred embodiment the fingers 12 are stacked upon one another resulting in a planar spread of a single flat fan like projection in this embodiment when the traverse control rod 11 is.