Abstract: A wrench tool having a wrench head which is removable from a hollow handle. A lubricant dispensing device is secured within the handle and a tube delivers lubricant to the wrench head.

Abstract: A heating device for a field-device display module includes a heating element. The heating element is adapted to the shape of the field-device display module and is equipped such that it converts an electrical current to thermal energy. The heating element can be coupled to the field-device display module such that by the heating element the field-device display module can be heated.

Abstract: In a method for controlling a hydraulic power wrench with a pivotable lever pivoted by a piston-cylinder unit and a ratchet arrangement for stepwise rotation of a ratchet bushing by advancing and return strokes, parameters such as nominal torque or pre-load or screw parameters are entered into an electronic input unit. Nominal pressure corresponding to the parameters is determined by an electronic evaluation unit and generated by the pump. The piston-cylinder unit is pressure-loaded for performing a pre-stroke until the nominal pressure is reached followed immediately by a return stroke. A time interval from beginning of pressure loading until reaching nominal pressure or until reaching an initial pressure after pressure relief is measured. Pressure loading and measuring are repeated. The measured time intervals are compared. Pressure loading cycles are stopped when at least the last measured time interval is shorter than at least the penultimate measured time interval.

Abstract: A tool for connecting and disconnecting a coupling having a combination of pliers and a wrench. The pliers have a first jaw with extensions which are positioned over the yokes of the first part of the coupling and a second jaw for positioning adjacent the second part of the coupling. The wrench has a third jaw which is slidably attached to the second jaw. The third jaw has extensions which are positioned around the yokes of the second part of the coupling. The pliers of the tool are used to compress the first and second parts of the coupling together. The wrench is used to rotate the second part of the coupling to disconnect or connect the coupling.

Abstract: A composite keyboard musical instrument comprises an acoustic piano and a silent system, and the silent system includes a hammer stopper split into two parts assigned to higher/middle pitched parts and a lower pitched part, respectively, and a timing changer for accelerating escape of jacks; although the two parts are independently rotatably supported by bearing units, two transmission mechanisms are used in parallel for transmitting torque from only one electric motor to the two parts and timing changer so that the power transmission system is simple.

Abstract: A composite decoding device for an MPEG-2 multichannel audio decoder. The composite decoding device is capable of simultaneously decoding information coded in a dynamic crosstalk coding manner and information coded in a phantom coding manner. To this end, the composite decoding device comprises an arithmetic unit for receiving a control word, information and a scale factor from a first-in-first-out memory, performing an arithmetic operation with respect to the received information and scale factor on the basis of a dynamic crosstalk coding manner or a phantom coding manner determined by the received control word and outputting the arithmetic result to a dual port memory, and a controller for generating a plurality of sequential control signals in response to the control word from the first-in-first-out memory to control the arithmetic unit.

Abstract: A housing member having a first housing and a second housing is arranged, with the first housing having rotary gear in cooperation with a gear shaft mounted to the second housing, with the second housing further including an hexagonal opening directed through the first housing and the first gear to translate rotary motion of the first gear to the second gear, with the first gear rotated by a wrench structure permitting access to limited geometric spacings to the tightening or selective loosening of a fastener member.