Abstract: The present invention provides a can feeding apparatus for a can seamer, in which can bodies are fed to a seaming turret are slid on a plate rail and alongside opposed guides by fingers of a drive chain. The seaming turret or a turret opposed to the seaming turret, or both turrets, are provided with claws at their outer circumferential portions. The claws project radially outwardly of pitch circles of the turrets and these projecting portions have profiles of cycloids so that the turrets will not pierce the can bodies. A plate-shaped magnet and/or a brush are disposed on the guides to steady the can bodies as they are transferred to a can lifter of the seaming turret. Furthermore, the angular position of a conveyor sprocket of the can feed conveyor can be adjusted easily in a short period of time by a phase adjusting device. Still further, in a can lid feeder disposed in front of the can seamer, a can body centering turret is also provided with projecting portions having profiles of cycloids.

Abstract: An apparatus for threading a closure having cylindrical walls which includes securing the closure in a stationary nest, inserting a threading tool having indentions on the outside thereof into the interior of the closure, moving the closure into a ring having projecting threads on the inside thereof around the outside walls of said closure, moving the threading tool into contact with the interior portion of the closure upon which threads are to be formed, and moving the threading tool around the interior portion of the stationary closure in an orbital path to form threads in the closure without rotating the threading tool about the threading tool axis.

Abstract: A method and apparatus for threading a closure which includes securing the closure in a stationary nest, inserting a threading tool having threads on the outside thereof into the interior of the closure, moving the threading tool into contact with the interior portion of the closure upon which threads are to be formed, and moving the threading tool around the interior portion of the stationary closure in an orbital path to form threads in the closure without rotating the threading tool about the threading tool axis.