Abstract: The present apparatus deposits a fleece of wood chips, particles or shavings on a conveyor belt for manufacturing panels. In order to avoid a uniform orientation of all particles in one direction and to assure an orientation of the particles in all directions in substantially uniform distribution, there is provided a particle flow disturbing device for disorienting the chips, particles or shavings as they are directed toward a conveyor belt. The particle flow disturbing device includes a plurality of screens, which intersect at a common axis, which is located slightly above and across the conveyor belt and which extends normal to the direction of movement of the conveyor belt. The wood chips are directed downwardly through the screens by an air current flowing generally in parallel to the conveyor belt to mix the descending wood chips. The common intersection axis of the screens is located upstream of the opposite edges of the screens with respect to the air current.

Abstract: A control valve absorption dynamometers has a closed end discharge conduit forming a cylinder with discharge openings in the cylinder walls. A floating piston is movable in the cylinder to vary the area of the discharge openings. A first piston surface is subject to the pressure at the exit port of the dynamometer or to the pressure downstream of a butterfly valve arranged between the piston and the exit port of the dynamometer. A second piston surface which may be smaller than the first piston surface is subject to pressure from the dynamometer exit or from a pump whereby the piston is moved for varying the area of the discharge openings in the cylinder wall. The intake of the pump may be connected to the inlet or exit port of the dynamometer. Flow control means may be located directly next to said exit port in said discharge conduit to convert a turbulent flow into a uni-directional flow.

Abstract: The present circuit arrangement is, for example, useful for producing reference signals in response to the rotation of a body such as a wheel or rotor to be balanced. Source signals are produced in response to the rotation of said body. Circuit means are provided for handling and comparing the source signals in such a manner that the reference signals are provided at an output terminal in response to the occurrence of the center of a source signal or in response to the maximum of a source signal. The transmittal may also be controlled in response to the center and the maximum of a source signal.

Abstract: This hydraulic chucking head, especially for testing machines wherein the test sample must be held without play in the direction of load application, includes at least two test sample holding pistons movable along a common axis toward each other and toward a central axis through the chucking head. These pistons are hollow inside and movable in respective cylinders in the housing with a certain initial play. The piston walls or jackets are elastically yielding when the pressure inside the piston is increased, whereby the test sample is held and simultaneously said play is removed since the piston walls are pressed against the respective cylinder bores. Preferably a non-metallic coating is provided between the piston walls and the cylinder bores which coating acts as a sealing and reduces friction.

Abstract: The present balancing method measures instantaneous analog unbalance representing signals and converts these signals into digital signals. The conversion involves multiplying the measured signals with reference values at least three times within each period of a reference signal. Said reference values are sine or cosine values of an oscillation having the same frequency as the unbalance vibration. The sine and cosine reference values are taken at points of time corresponding to the respective multiplication point of time. The products of all individual multiplications are separately summed for sine and cosine values and at least for one period of the reference signal. Thereafter mean values are formed from the two sums. The just mentioned signal processing steps are performed by digital circuits including digital multipliers, digital summing networks, digital mean value formation circuits, as well as a clock signal generator.

Abstract: The present circuit arrangement is, for example, useful for producing reference signals in response to the rotation of a body such as a wheel or rotor to be balanced. Source signals are produced in response to the rotation of said body. Circuit means are provided for handling and comparing the source signals in such a manner that the reference signals are provided at an output terminal in response to the occurrence of the center of a source signal or in response to the maximum of a source signal. The production of pulses may also be controlled in response to (i.e., at) the center and the maximum of a source signal.

Abstract: The present conduit or trough for a vibratory conveyor is constructed especially for transporting and/or treating bulk materials such a wood chips or the like. The trough or conduit is provided inside thereof with partition plates extending substantially across the transport direction. These partition plates take up part of the depth of the trough or conduit and may be arranged at an angle relative to the transport direction. Baffles may be arranged in the conduit or trough to extend away from the partition plates and substantially in the transport direction.

Abstract: The present feed regulating conveyor bin has a lower conveyor for conveying fibrous materials toward a discharge device including a pair of inclined rows of spiked rollers. A stud link chain conveyor is provided above the lower conveyor in the upper portion of the bin housing. Flexible, smooth surfaced pieces are hinged to each of the stud links. The surface pieces have a width substantially equal to the width of the housing and a length greater than the distances between adjacent stud links of the chain. A platform is provided beneath the upper course of the stud link chain conveyor in the region of an inlet opening on the upper surface of the housing, to support the surface pieces in a horizontal position for receiving and transporting fibrous material.

Abstract: The present display device combines a liquid crystal display panel with a transparent dial for example having a polar coordinate system on which the information shown by the panel may be displayed with regard to its value and location or angular position. This type of display is especially suitable for displaying unbalance informations of a body to be balanced. In the present process an unbalance representing signals are separated into horizontal and vertical components, which are then supplied respectively to the row and column electrodes of said liquid crystal display device. The dial itself may also be constituted as a liquid crystal display panel. The row and column electrodes may be provided in several sets for simultaneously displaying several unbalance informations, for example, relating to different planes in a body to be balanced.

Abstract: In the weight correction of workpieces prior to finish-machining, such as connecting rods, the dimensions of the pre-machined surfaces are measured and employed as a factor in the adjustment of the machine tool for weight correction of the workpieces, for example, by machining material off or adding material onto the workpiece, so that the workpiece will have the desired weight characteristics after final machining.

Abstract: In a method and apparatus for processing a pair of d.c. signals representing information having angular and amplitude components, in particular, information relating to the unbalance of a body to be balanced, coordinate transformation means are provided in order to transform the coordinates of the two d.c. signals in response to a control signal, the control signal being continually adjusted in a direction dependent upon the polarity of the outputs of the coordinate transformation means, until one of the outputs of the coordinate transformation means becomes 0. In this case, the control signal corresponds to the angular information of the two d.c. voltages, and the output on the other output terminal of the coordinate transformation means corresponds to the amplitude information. Means are also provided for stopping the adjustment of the control signal, whereby a source of d.c.