URGENT!!! info on revolving stages and conveyor belts

Brad, A revolving stage (or "revolve" ) is simply that.. a circular section of the stage that rotates on a central pivot point. this can be any size and is supported underneath by castors around it's outer edge. The resulting disc can then be divided into portions by using flats fixed to it's upper surface. This enables very simple scene changes by redressing the set that is out of view during the scene in use and then turning the "revolve" to position the next scene. This procedure has been used very successfully used by several theatre companies in Perth.
During "Toad of Toad Hall" at Stirling Theatre Innaloo, two revolves were used side by side so as to utilize the entire stage. While at Playlovers they have one large revolve that is permanently part of their stage (although not always used) and theirs was highly effective during their recent run of "Money and Friends" for which I was the stage manager. During this production, the "revolve" was divided into three portions to represent the different houses at a beachside holiday retreat.
Using this technique it is possible to effect a complete redressing of the stage, in a minimal amount of time and not needing an army of backstage crew to do it with. However, depending on the size, age and ease on movement of the revolve, you WILL need some strong backs to rotate it. By using two or more revolves you can achieve some really amazing changes to the set simply by turning the stages being used (rather like the setup in so many "House of Mirrors" movies.) Please note that the revolving stages I mentioned above are manually operated, NOT motorised.
I have no "hands on" experience with "Conveyor belt" stages, but I am assuming that the principle is the same as that used in industry... A wide belt that runs across the stage supported by rollers at either end to transport props, scenery or (very carefully) actors from one side to the other.