Abstract: In known methods of initializing a balance with counting scale a given quantity of the pieces to be counted is placed on the balance at the same time and the average individual weight is calculated therefrom and used as a base for the following piece counts. In contrast thereto, the invention suggests that the pieces be placed individually on the balance and that the standstill of the balance be waited for after each placing of a piece. This makes it possible to also calculate the standard deviation in addition to the average value and statements concerning the counting precision can be made which are based on known statistical laws, so that counting errors can be avoided.

Abstract: A load sensor includes a scale cell for producing an output signal corresponding to the weight of an article, and a dummy cell, provided near the scale cell, for producing a noise signal output ascribable to floor vibration. A correcting circuit extracts a signal proportional to a DC component contained in the output signal of the scale cell and, on the basis of the extracted signal, corrects the output signal of the dummy cell to the noise level of a floor vibration component of the scale cell. The corrected dummy cell noise signal is added in opposite-phase relation to the scale cell output signal, so that the floor vibration noise contained in the scale cell output signal is cancelled out by the corrected noise signal of the dummy cell.

Abstract: A mass meter of the type of conventional weighing scale having an elastic cantilever mechanism provided with a weighing cradle, and a mechanoelectric transducer for sensing a strain of the cantilever to produce a weight indicative signal, which further includes, for cancelling the effect of gravity, a reference weight accompanied with its loading and unloading means, and an arithmetic unit for processing the weight data obtained in both reference weight loaded and unloaded states to calculate the mass of an article on the weighing cradle.

Abstract: A method and apparatus for separately weighing, by means of a common scale, contributions of material from multiple streams, such materials typically being printed papers, such as from a printing press. Material that is to be weighed, which is typically waste material, is loaded into receptacles or the like for temporary storage thereof and is subsequently and sequentially released into a storage bin or the like associated with the common scale. An increase in measured weight associated with each respective material release or discharge is then determined. From each weight increment associated with one of the multiple streams, is added to provide a total count corresponding to weight and associated with each, one of the individual streams of the multiple streams of material. In this way, separate count totals are maintained and continuously updated for a plurality of different corresponding deliveries but using a common scale and associated storage bin or container.

Abstract: An installation for monitoring and controlling a machine for producing items which at the end of production thereof are subjected to quality control with rejection of defective items, comprises a computing means (4), a detector (5) for sensing the number of items produced, a weighing machine for weighing the reject items, a precision weighing means for weighing an item produced, and a display means, the computing means operating on the basis of the data supplied thereto by the sensor, the weighing machine and the precision weighing means to provide the number of items produced, the number of items rejected and the difference therebetween, constituting the number of accepted items.

Abstract: There is disclosed an electronic counting scale provided with means for calculating a maximum addable number of items to be added to an already counted known number of items with an error being eliminated from the counted number of a total items including the added items, said means calculating the maximum addable number on the basis of the standard variation of an average weight estimated from the samples taken from the entire population of the items to be counted.

Abstract: A weighing device uses frequency measurement to determine weight. One body (3; 23; 68) is of known mass and another body (8; 28; 66) also of known mass is spring (9; 29; 83) connected to it. This body carries the load whose mass is to be determined. Both bodies can oscillate in one mode in an effectively isolated system, being carried by springs (2, 13; 22, 33; 65, 67) from a support (1; 21; 60, 62). The oscillations are electromagnetically generated, but when a certain amplitude is attained the drive is cut off and the system resonates freely. The frequency varies with the mass of the bodies, and so a load on one can be weighed by reference to the frequency, which can be detected through the electromagnetic means (12, 32, 76) which provided the initial drive pulses.

Abstract: A device for reducing errors in weighing systems caused by extraneous noise and/or vibration.

Abstract: An apparatus suitable for determining the dry and submerged weights of a large volume of water-bearing food material on a more or less continuous basis. The determinations enable the calculation of the density of the food material and, therefore, its solids content.

Abstract: Electric mass and force measuring apparatus which includes two force transducers, one of which provides an electrical output signal which is proportional to the gravitational force acting on the mass to be determined, and the other providing an electrical output signal which is proportional to the gravitational force of a known mass. A signal processor responds to both of the electrical output signals and provides an output signal which represents the unknown mass. The force transducers are of the type which respond only to a force component acting in a predetermined direction, and are supported in a common frame in a manner which insures that the predetermined directions of the transducers are parallel to each other. The force transducers are preferably of the beam type and include a beam which is freely deflectable at one end and rigidly secured to another beam which extends freely to the side of the first-mentioned beam, while also being shorter than such first-mentioned beam.

Abstract: A balance having an electromagnetically compensated loading system and an electromagnetically compensated reference system includes respective signal pathways provided for feeding signals which arise in or are derived from the two systems. These signals are to be compared for measurement. The signals from the two pathways are processed coincidentally with one another for digitization, beginning simultaneously and ending simultaneously.

Abstract: An electronic counting scale, which may comprise a single relatively compact unit including all operable elements; or which may be based upon a modular construction including, firstly, an electronics unit which includes all basic electronic circuitry necessary to operation; and, secondly, a base unit. The base unit in the modular construction, includes the load cell, associated mechanical linkage, the weight receiving platform, and the like. It is adapted to directly receive the electronics unit, and includes connector means for enabling electrical interconnection with the electronics unit, and means for mechanically coupling the base unit to the electronics unit. The load cell is a parallelogram-type flexure frame, and is characterized by four strain gauges, which are located at the upper and lower surfaces of two vertically overlying flexure corners of the parallelogram. This arrangement--because of symmetry considerations--is uniquely free of second-order errors generated by offset loading.

Abstract: Conventional electrical scales having independent weighing channels for a reference weight and the actual load with subsequent division of the resulting load signal by the reference signal to furnish the final output cannot furnish a final output signal independent of accelerating disturbances in a large critical frequency region, since changes in load change the dynamic behavior of the load channel. To substantially decrease variations in the final output signal due to such accelerating disturbances, the load signal is additionally coupled to the reference channel by means of at least one frequency-dependent network.

Abstract: A method for counting the number of articles or goods of the same kind using a weighing machine which comprises a step of measuring an average or mean weight of sample articles, a step of measuring a weight of all articles to be counted and a step of calculating the number of the all articles by dividing the measured weight by the mean weight. Said step of measuring the mean weight includes a step of measuring a temporary mean weight a.sub.1 of a known small number of articles P.sub.1, a step of adding any unknown number of articles P.sub.2, a step of measuring a weight W.sub.1 of these articles P.sub.1 plus P.sub.2, a step of calculating the number N.sub.1 of the articles by rounding off a quotient obtained by dividing the weight W.sub.1 by the temporary mean weight a.sub.1 and a step of calculating a standard mean weight a.sub.2 by dividing said measured weight W.sub.1 by said calculated number N.sub.1.

Abstract: Counting scale utilizing two platforms connected to a single load cell for determining the weights of a sample and an unknown quantity of articles to be counted. The weights are combined to determine the number of articles, and this number is displayed. One of the platforms is connected directly to the load cell and is particularly suitable for weighing small loads. The other platform is connected to the load cell through a lever system and is particularly suitable for larger loads. Depending upon the size and the number of the articles to be counted, either of the platforms can be used for weighing either the unknown quantity or the sample, or both. A keyboard is included for entering a weight such as the weight of a container so that the weight of a group of parts in a container upon one of the platforms can be determined without removing the parts and weighing the container separately.

Abstract: Counting scale and method utilizing a single load cell for determining the weights of both a sample and an unknown quantity of articles to be counted. The weights are combined to determine the number of articles, and this number is displayed. The platform of the scale is mounted on and supported by the load cell in a system requiring no levers, pivots or other moving parts. Weight readings are averaged on a moving average basis, and with no load on the scale, any drift is cancelled by increasing or decreasing the weight readings in small increments during successive counting cycles to maintain an accurate zero reference.

Abstract: Balance for determining weight percentage of an extracted component with respect to the total weight of a given material, comprising two load-receiving units and two movable rigidly connected balance weight interconnected by flexible ties that embrace a drum. As the drum rotates, the load-receiving units and the balanceweights move simultaneously along the beam in opposite directions until the beam is set in equilibrium, at which a vernier position on a linear scale indicates the sought percentage.

Abstract: An electrical counting scale of the type having a sample pan for receiving a known number of pieces of like weight, a commodity receiver for receiving an unknown number of pieces to be counted and a first lever for coupling, in a fixed first ratio, the sample pan to the commodity receiver. The load transducer is coupled to the first lever for generating a load signal representative of a load force thereon, with the load signal being coupled to a load indicating device for displaying a representation thereof. A second lever is coupled between said first lever and said commodity receiver for reducing in a fixed second ratio the primary load force transmitted therebetween. A second commodity receiver is provided for receiving another unknown number of said pieces to be counted. A third lever couples said second commodity receiver to said load transducer for increasing the load force thereon by a fixed third ratio.

Abstract: A preferred embodiment of this invention is a heavy duty balance particularly adapted to comparative weight denier tubes produced in synthetic fiber plants. This weighing device includes a locking feature for use during loading and unloading of the tubes, an easy to ready comparative weight indicator, and a finger tip zero adjustment.