Chain breakdown safety device for a power-driven roller door

Chain drive

Chain drive and automatic chain tensioning unit

Chain drive including sprocket having alternate wide and narrow

Chain drive means for a bicycle or the like

Chain drive shift system

Chain drive, especially for the control drive of internal combus

Chain driven reverse gear for a manual transmission

Chain for a V-drive arrangement

Chain for engagement with double sprocket

Chain guide connector device for use in bicycle derailleurs

Chain link and method for forming the same

Chain master link construction

Chain pin assembly with captive securing means

Chain tensioner

Chain tensioner for chain drives

Chain tensioning device

Chain with bushing protective cover

Chain with guide

Chain-drive transmission