Abstract: A musical wind chime especially to one which generates music according to the appearance of the wind chime includes a wind chime body and a sound control circuit. A power source is used to supply the required electrical power to the sound control circuit. A wind control switch connected between the power source and the sound control circuit for responding to any wind to intermittently connect the power source to the sound control circuit and generating music therefrom. The wind control switch includes a circular conductor formed inside the wind chime body, a conductive rod hung therein but not contact with the circular conductor, and a conductive ball attached to the conductive rod such that when some wind occurs it causes the conductive ball to swing and contact with the circular conductor. A wind plate is suspended under the conductive ball for receiving wind force thereby driving the conductive ball to contact with the circular conductor.

Abstract: A light string controlling apparatus includes a bridge rectifier, an RC filter, an signal generator, and a silicon controlled rectifier. The signal generator provides the gate of the silicon controlled rectifier a train of pulses or analog signals or a combination of pulses and analog signals, to control the conducting angle of the silicon controlled rectifier, affecting the flashing frequency and illumination of a light string.

Abstract: An automatic delay-controlling device for pre-setting a delay of the switching-on or switching-off of loads such as general motors, lighting apparatuses, etc., having a controller, a central processing unit, a read only memory, an address multiplexer, a programmable peripheral interface, an ouput driver and an alternating-current power supply connected to the output driver via a load. The controller is connected to the central processing unit and has three buttons serving as inputs to the central processing unit for inputting the duration of the delay. The central processing unit, read only memory, address multiplexer and programmable peripheral interface are intercommunicated to co-process signals from the controller in order to control the operation of the output driver. Therefore, the output driver is controlled to carry or not carry the load with the aid of the alternating-current power supply.

Abstract: A process and apparatus for on-line measurement of unflatness of hot or cold rolled strip products, wherein the longitudinal bending of a shape roll over which the strip passes provides a measure of the unflatness of the strip. Actual values of force, displacement or bending moment near the ends of the shape roll may be compared to theoretically predicted values for a flat product and for product having various out-of-flatness conditions. Preferably, the shape roll is supported at its ends by two pairs of supports, and the measurements at the supports are used in determining roll bending and then strip unflatness. Other conditions such as off-center strip and asymmetric operation of the rolling mill may also be determined from the measurement.

Abstract: A device for applying coolant/lubricant to the surface of the rolls of the rolling mill and/or the workpiece being rolled. The device comprises a housing having a plurality of nozzles associated therewith, a rotating inner manifold having a plurality of apertures therein in a particular array for directing liquid to the nozzles and sealing means between the manifold and housing which provides a leak-free passageway for the liquid. The manifold is rotated to align the apertures therein with the leak-free passageway to supply liquid to the desired nozzles.