ASME B29-22 pdf download DROP FORGED RIVETLESS CHAINS, SPROCKET TEETH DRIVE CHAIN/DRIVE DOGS 1 INTRODUCTION The drop forged rivetless chain has widespread usein many industries on trolleys, scraper flights,assembly,and similar conveyors. Because materials do not tendto pack in its open structure,the drop forged rivetlesschain is used extensively for flight conveyors. Its designpermits both horizontal and vertical operation overirregular routes，making it...