Very interesting. It took a very long time to download the movie (holy
smoke, how big are these files?) The one showing the blade being lowered
and raised confirms that it could be done on an American saw just hooked to
the blade arm in some way. The riving knife tilts back because it is
attached to the arm that pivots on the same axis as any american saw blade.
In the thread I was working in Fine Woodworking, it was pointed out that the
European saws are on ways and the riving knife comes up straight. Actually
in viewing your video, it would appear that being on the same arm as an
American pivoting blade might be considered an advantage since the riving
knife covers a larger percentage of the blade when it is more exposed --
when IT COUNTS. Again, what is that saw? And please spell it out!