Abstract: The invention relates to arrangements at apparatus for weighing the mass flow of fluent material, especially of particulate type, by determining forces exerted from the material per unit length in the direction of its movement and its velocity or travel, wherein the measured force (G) corresponds to the weight of the material per unit length; the velocity of the material is measured in a position which corresponds to the mean velocity over the unit length; the velocity sensor (9) is an optical measuring means comprising a light source reflected against an array of photo detecting cells producing a signal representing a speckle pattern of the particulate material; said signal is processed in a calculating means (12) giving an output signal representing the velocity or travel of the material; and the material flow is determined by the calculating means (12) from the output signals from the weight measuring means and the velocity measuring means.

Abstract: The invention relates to a device for supporting the load or the load carrier of an electromechanical scale via at least three load transferring points, and for combining the partial loads of the points for superimposing their actions utilizing a central measuring body. The measuring body has an elongated shape and is at each end provided with rigidly connected transversally directed substantially parallel arms in two pairs of arms. Two of the arms, at each end of the measuring body, are each one provided with a supporting device operationally resting against a bed of the scale, and the two other arms, at each end of the measuring body, are each one provided with a supporting device carrying the load or the load carrier. The supporting devices include bars running parallel to the longitudinal axis of the measuring body, the bars forming load transferring points. The action of the load on the measuring body is of a torsional nature and is so dimensioned that it is electrically measurable.

Abstract: The invention deals with a weigh-bridge of platform type resting on load measuring points also serving as support points for the load. The weigh-bridge of the invention eliminates the effect of disturbing lateral load forces and torques. The weigh-bridge is composed of at least two parts being mutually joined by means of flexurally weak elements in the direction of the load. The load receiving support points are located at the ends of adjacent sides of platform parts. The flexurally weak elements are arranged to transfer the load between two adjacent platform parts. All support points are located for supporting each platform part by three points of support.