Machine for continuous treatment by means of liquids, more particularly for pasteurisation of substances in sachets

Claim 1

In a machine for continuously subjecting products to liquid treatment and comprising an endless conveyor having gear wheels at its ends which carries the products from a loading station to an unloading station as it passes through one or more treatment stations, the improvement comprising providing said conveyor with open work baskets to receive the products, said open work baskets being provided with a hinged cover urged into closure position and wherein cam devices are provided at the loading station and the unloading station for opening said cover as the basket passes the station, said loading and unloading stations being grouped at one end of the conveyor, said cam devices being common to these two stations, and wherein covers of said baskets have projections which cooperate with lateral cams disposed coaxially of the gearwheels of the corresponding end of the conveyor, the bottom run of the conveyor arriving obliquely downwards in the direction of said gearwheels and leaving the same obliquely upwards, the cams extending over substantially 180* from points situated slightly downstream of the lowest point of the conveyor.