GB816462A - Method and apparatus for telescoping covers on boxes - Google Patents

Abstract

816,462. Packaging machines. NATIONAL DAIRY PRODUCTS CORPORATION. June 24, 1957 [July 11, 1956], No. 19779/57. Class 94(1). [Also in Group XXX] A machine for telescoping lids over box bodies comprises converging conveyers, one for the bodies and the other for the lids, the lids and bodies being led into partially telescoped relation by the conveyers and being finally telescoped by applied pressure. The described machine places lids 4 on cheese cartons 1. The filled cartons are supplied by a conveyer 10 from which they are transferred by known means 11 to a conveyer 12. The boxes are delayed by means 17, Fig. 2, beneath the conveyer 12 so that they are engaged by pins 13 on the conveyer for positive forward transmission. The lids 4 are supplied by a conveyer 9 above the conveyer 12 and are subjected to a frictionally feed by a belt 18. At the base of the conveyer 9, they are engaged on either side by fingers 21 which retain the lowermost lid until the leading edge of a carton enters it and drags it clear of the fingers beneath a spring loaded pressure plate 28. A finger 47 on a pivoted rod 42 catches against the rear margin of the moving lid to distend it as the pressure plate forces the lid onto the carton. In the event of failure of a lid to engage a carton properly, the pressure plate will yield upwards and may operate a switch to stop the machine.