Abstract: The deformable driving band (3) or similar comprises passage means (2) passing through the band and opening out, towards the inside, at right angles to pockets (5) or similar provided in a compressible strip (6) extending over the whole driving band, the assembly being such that a suction phenomenon increasing grip is created by the compressible strip (6) and the packets (5) in deformation zone of the driving band (3) corresponding to an expansion phase of said pockets (5).

Abstract: The invention concerns an instrument of the portable type, which allows for the elaboration of an unlimited number of recipes and for the monitoring of the use or the consumption of different volumes or compositions, easily and without particular knowledge.The device comprises a transparent receptacle (5) equipped with means of fixation (6) of cards (7) made in plastic, "Rhodoid", cardboard or other materials.The receptacle (5), cylindrical or otherwise in shape, has an internal surface formed of flat vertical facets (11) presenting the general aspect of a magnifying flass, improving the visibility and the definition of the levels. The angles formed by the flat surfaces of the facets facilitate the homogeneity of the mixture.Amont the most interesting applications of the invention, one may cite:elaboration of recipes: pastries, drinks, liquids;pharmaceutical formulae;the control of the feeding of the ill, etc.