GB310699A - Improvements in weighing apparatus - Google Patents

Abstract

310,699. Maatsehappij tot Vervaardiging van Snijmachines Volgens van Berkel's Patent en van Andere Werktuigen, and Berkel, C. F. M. van. June 11, 1928. Pendulum - weight apparatus; sliding- weight apparatus-In a weighing - apparatus of the type having a steelyard or a notched bar with a sliding poise weight the displacement of which wholly or partly balances and indicates the load means are provided for preventing movement of the steelyard sufficient to effect the weighing operation during movement of the sliding poise between graduations or notches, the means being so arranged that the steelyard is immediately and automatically freed each time the sliding poise is at a graduation or notch. The weighbeam 1 mounted on a fulcrum 2 carries a scale pan at one end and is connected at the other end to a pendulous resistant 20 by a ribbon 15<1>. The steelyard or notched bar 4 is integral with, or secured, to, the weighbeam and carries, upon wheels 9, 10, an endless band 8 attached to the sliding poise weight 5. The poise weight is adjusted by means of gear wheels 11, 12 and an external finger knob on the shaft of the gear wheel 12. A pin 15 projecting from the base immediately beneath the wheel 9 prevents oscillatory movement of the steelyard and weighbeam (thus preventing a weighing operation being performed) unless the poise weight 5 is positioned in the notches 7 in which position. a radial recess 14 in the wheel 9 occupies a position above the pin 15 and permits the necessary freedom to the weighing system. When the poise weight 5 arrives at its correct notch for producing equilibrium the weighbeam tilts and removes the gear wheel 11 from its driving connection 12. The portion of the load balanced by the poise weight is indicated on a dial 22 connected to the poise weight by a ribbon 23, and the fractional portion is indicated by the pendulum pointer 21. Specification 224,550 is referred to.