Abstract: A multipurpose weather measurement instrument sensor system in which a fan circulates air past temperature and other sensors to ensure their accurate operation, a basin collects rainwater and precisely directs the rainwater into a tipping receptacle to measure the amount of rainwater collected per unit time and a wind speed gauge is provided with a counter-balanced toggle beam to product wobble-free rotation.

Abstract: A product supply apparatus for a weighing system (3) for supplying a weighed product quantity (4, 5) to a product receiving device (7) of a packaging machine (8) is formed to prevent spreading of the supplied product quantity when discharging from a collecting receptacle (11, 12) and falling through the product receiving device (7).

Abstract: In a rain gauge of the type comprising a counter-balanced tiltable water collecting spoon system as operating a counter the tiltable spoon system is held in its water collecting position by magnetic attraction forces between a permanent magnet and an armature such that the tilting is initiated in accurate responses to a predetermined overfilling of the spoon system, whereby the tilting takes place in a welldefined and rapid manner conditioning a high measuring accuracy of the rain gauge.

Abstract: A device for controlling the flow of fine powders in a quantising machine includes a pinch valve in combination with a fluidiser maintaining a constant head of fluidised powder. A weigh bucket having a plurality of compartments is rotatably mountable to allow simultaneous filling and discharge. Means for delivering charges of fine powders to receivers rapidly with low change in quantity of the charge, have a power-tight system from the charge measuring means to the receiver, and means for venting the air from the receiver. Accurate net weighing machines for rapidly weighing and delivering charges of fine powders incorporate some or all of the above features in an integrated system.