Apparatus is disclosed which provides an entrance gating structure for spacing the entry of containers carried by a conveyor into a testing device. The containers arrive at the testing device under line pressure and are then permitted to enter a testing apparatus where they are conveyed...http://www.google.es/patents/US4096939?utm_source=gb-gplus-sharePatente US4096939 - Apparatus for feeding glass containers at spaced intervals
Apparatus for feeding glass containers at spaced intervals
