How It Works Video demos & downloadable PDFs. Product Resources|How It Works Disposer Systems A video demo on the ScrapMaster (TroughVeyor operation similar). Collector Systems A video demo on the Scrap Collector (Trough Collector operation similar). PDF Files Disposer Systems SCRAPMASTER - SM & PSM TROUGHVEYOR - TV Collector Systems SCRAP COLLECTOR - S914 & P914 TROUGH COLLECTOR - S419 Downloading PDF documents requires Adobe Acrobat Reader.