BSP consists of. two types of threads - BSPT (British Standard Pipe Taper) and BSPP (British Standard Pipe. Parallel). BSPT threads have a slight taper similar to NPT. BSPP threads are straight (parallel) threads. and have the same thread angle, shape and threads per inch (pitch) as BSPT threads.
The movie the Exorcist was based on a book of the same name by William Peter Blatty. The book is based on the real-life attempt of a priest to exorcise a demon from a young boâ¦y (the boy was around the same age Reagan was in the movie).
The Ninth Configuration (1980) Few films - or novels - have a history more bizarre or potentially confusing than The Ninth Configuration (1980), an ambitious and genre-defying directorial debut for the late William Peter Blatty, who wrote the bestselling novel The Exorcist and won an Oscar for adapting it into a screenplay.