For the top spin look here it is called texas twister it has 2 rows instead of one and the row is long. 20 across. it fits 40 riders. 20 in each row.
http://members.tripod.com/sfohio/Texas_Twister.htm
and
http://www.sixflags.com/parks/worldsofadventure/rides/texas.asp?id=rides&rideid=thrills
for the inverter look here. It's called time warp.
http://members.tripod.com/sfohio/Time_Warp.htm
and
http://www.sixflags.com/parks/worldsofadventure/rides/warp.asp?id=rides&rideid=thrills