A balance includes a weighing cell which is surrounded by an elastic tubular bellows or a soft-elastic hose without ribs and is protected against the penetration of dust and water, wherein one end of the bellows or hose is attached to the stationary end of the weighing cell and the other end of the bellows is attached to the load-receiving deflectable end of the weighing cell. At least one bending-stiff support pipe which surrounds the weighing cell in the area of the bellows or hose is placed i...

A balance with a weighing system protected against overloading includes a load receiving member and a weighing dish placed on the load receiving member. The weighing dish rests on dampening elements which are mounted at ends of two U-shaped levers which are supported in a central yoke. The yoke includes abutments which hold the two levers in a horizontal position in an articulated manner. When a load which is within the weighing range is applied to the weighing dish, the two levers and the yoke ...

A balance having a rotatably suspended balance arm connected to a horizontally disposed tension wire; the tension wire is mechanically linked to a barrel-shaped coil holder which is rotatably mounted in a casing; a permanent magnet is fixed to the casing to extend within the coil holder; conducting coils are arranged on the exterior of the coil holder to cooperate with the magnets to restore the balance arm to an equilibrium position; the current supplied to the coils to restore the balance arm ...

Balances having a reference mass and means for compensating for thermally induced errors such as shift of the zero-point and change of steepness in the characteristic of the balance. Bimetallic members are fastened to movable parts such as levers or other force transmitting members, or to the reference mass, and function as supports for masses acting as compensating masses. This allows for offsetting the two kinds of errors independently. Moreover, the bimetallic supports can be mounted on adjus...

A balance beam having a short arm carrying a weighing pan and a long arm whose weight counteracts the torque exerted by the pan on the beam has a longitudinal edge extending over both arms and notched at uniform intervals. A rider weight is movable along the beam for alternative engagement with the notches in the two arms, the spacing of the notches being greater than in an otherwise equivalent balance having notches in the long arm only, and manufacturing tolerances in the making of the notches...

A balance, for example a letter scales, comprises an articulated parallelepiped formed by two upright plates pivotally joined by two transverse plates. One of the upright plates is fixed on a base and the other, which is movable against the action of a spring, carries a scale at its upper end. The lower transverse plate has an extension carrying a pivotally mounted arm which in turn pivotally carries an index at a free end thereof. A pair of upright members on the frame define a vertical guide c...

A thermogravimetric balance comprising a vertically disposed load carrying arm connected at each end through tension wires to first and second horizontally disposed balance arms connected at their mid-points to tension strips or wires. The other ends of the balance arms are linked through tension wires to a connecting element so that the balance arms, load carrying arm and connecting element comprise a vertically disposed parallelogram. Rotation of said first balance arm out of its equilibrium p...

A self-adjusting balance comprising a stirrup supporting a rotatable disk at its center. The front face of the disk is graduated in degrees from 0.degree. to 90.degree., the graduations continuing on the reverse face from 90.degree. to 0.degree.. At the rim of the disk there are two slots, at diametrically opposite 0.degree. marks, to accommodate cords, one to be connected to a weight to be measured and the other to a standard weight, the weight to be measured being connected to the cord in the ...

A single-pan analytical balance having two beams mounted spacedly one above the other in main bearings whose normally horizontal axes perpendicularly intersect each other. One arm of each beam carries a counterpoise whereas the other arm is secured to a hanger assembly carrying a top-loading weighing pan by hanger bearings whose pivot axes are parallel to the corresponding main bearings. The bearings consist essentially of flexible metal ribbons. An electromagnetic device acting on the hanger as...

In a scale with a weighing cell, which can generate weight signals representing the weight of a load each time something is weighed, and with a signal processing system which receives the weight signals and generates: weight data on the basis of the weight signals, information determined on the basis of the weight data such as purchase prices, and/or weighing data containing identification data designating the weighing operation or group of associated weighing operations in question, an elaborat...