Said channel and driving mechanism for moving said ? ights along said horizontal and vertical paths of travel .
Channel is a guide through which - bowling pins elevated by saidflights are conveyed after leaving the horizontal portion of said path - of travel .
said channel , a guide through which - bowling pins elevated by saidflights are conveyed after leaving the horizontal portion of said path - of travel , and driving mechanism for moving said ? ights along said horizontal and vertical paths of travel .