Abstract: An electric pulse tool is configured to deliver torque in pulses on an output shaft thereof and includes an electric motor to drive the output shaft. The electric pulse tool is configured to, for each period, provide a current pulse to the electric motor during a current-on time interval, pause a current feed to the electric motor after the current-on time interval until an end of a torque pulse, determine a width of the torque pulse, and continue pausing the current feed to the electric motor during a pause interval from the end of the torque pulse. The pause interval is determined based on the width of the torque pulse such that a wider torque pulse results in a wider pause interval and a narrower torque pulse results in a shorter pause interval.

Abstract: A method of producing silver fine particles includes continuously reducing silver ions contained in a silver compound to precipitate silver fine particles by introducing at least two fluids from separate flow paths and mixing the fluids, wherein one fluid of the at least two fluids contains the silver compound, and another fluid contains a reducing agent, and at least one fluid of the at least two fluids contains an amino acid. With this method, silver fine particles can be produced with sufficient continuous productivity and quality uniformity, without problems of deterioration of working environment and generation of explosive fulminating silver due to the use of a large amount of ammonia.

Abstract: A clamping tool is provided comprising a body, containing control circuits and electronic processing circuitry and having, at one end, a handle for gripping by an operator making the clamping, and on the other end, an arm. The arm comprises, at its free end, a seat that can be alternatively pluggable to a plurality of inserts suitable for engaging the tool with a corresponding type and/or dimension of a mechanical member on which the tool is configured to operate to perform a clamping operation. Sensor means are provided on the arm for detecting tightening conditions exerted on the mechanical member. Furthermore, a microprocessor electronic card is provided on the are for receiving analogic signals from the sensor means, converting the signals into digital format, and handling transfer of the signals in digital format to the electronic processing circuitry.

Abstract: The present specification relates to a power tool comprising an input shaft and an output shaft and a two-speed power transmission comprising a planetary gear and a gear shift assembly for directing torque through or past the planetary gear comprising a driving member, a driven member and an axially movable coupling sleeve arranged to intercouple in a first position the driving member and the driven member and to intercouple in a second position the planetary gear and the driven member. A linear actuator is arranged to displace the coupling sleeve between the first and second position, wherein the linear actuator comprises a linearly movable push bar arranged for displacing the coupling sleeve. The present specification also relates to a method in and a two-speed power transmission for such a power tool.

Abstract: A hydraulic screw tensioning device includes a tubular body, with a through opening and an annular cylinder chamber surrounding the through opening and a tubular piston movably supported in the tubular body and connectable to a screw to be tensioned. The tubular piston includes a stepped outer portion and divides the annular cylinder chamber into a first pressure chamber and a second pressure chamber. The second pressure chamber is closed by an annular end cap secured to the tubular body. The first pressure chamber is connectable to a pressure source for hydraulic fluid. The second pressure chamber is connectable to a pressure source for a compressible medium via a conduit connector mounted on the annular end cap. The conduit connector extends radially in relation to a geometric axis (A-A) of the tubular body. A damage protecting structure is provided to protect the conduit connector against accidental physical damage.

Abstract: Clamping tool provided of a tightening conditions display device comprising a body (11), containing control circuits and a processing electronic unit having at one end a handle (12) for gripping by an operator making the clamping, and on the other end an arm (13). Said arm comprises a seat (16) wherein can be alternatively pluggable a plurality of inserts suitable for engaging the tool with a corresponding type and/or dimension of a mechanical member on which the tool is destined to operate to carry out a clamping operation.

Abstract: A transducer for measuring the characteristics of a clamping instrument includes a stator which has an annular support adapted to form a substantially cylindrical longitudinal cavity adapted to receive a rotor which is also substantially shaped cylindrical adapted to rotate inside this cavity of the stator around its longitudinal axis, this rotor being provided at one end with a seat for insertion into it of the head of an instrument of tightening which determines such rotation around the axis, and a sensor arranged on its body capable of detecting specific parameters of the tightening of the instrument, and generating corresponding electrical signals. The transducer includes a magnetic coupling device adapted to transfer electrical energy from the stator to the rotor and an optical coupling device adapted to transfer the electrical signals generated by said sensor means from the rotor to the stator.

Abstract: The present specification relates to an electrically insulating tool cover assembly adapted to cover at least a front portion of a power tool, comprising a first and a second cover portion adapted to, in use, together cover the front portion of the power tool, and a releasable retaining element adapted to cooperate with a corresponding mating structure at the first and second cover portions, in order to hold the first and second cover portions together. The first and second cover portions and the retaining element are made of an electrically insulating material, such that in use, an electrical insulation may be provided for at least a part of the front portion of the power tool, and the first end is a front end of the tool cover assembly adapted to, in use, be arranged at the front end of the power tool.

Abstract: A clamping tool with tightening torque control includes a body containing control circuits and an electronic processing unit having at one end a handle for the grip of an operator who performs the tightening, and at the other end an arm. The arm at its free end includes a seat into which a plurality of inserts can alternatively be inserted, suitable for engaging the tool with a corresponding type and/or size of a mechanical member on which the tool is intended to act to perform a tightening operation. On the arm there is a sensor adapted to detect the tightening torque exerted on the mechanical member.

Abstract: A power tool is arranged to operate in at least a first operating mode and a second operating mode. The power tool is operative to provide a first type of light signal from a light emitting device arranged to light up an object to be processed when the power tool is set in the first operating mode and to provide a second type of light signal when the power tool is set in the second operating mode.

Abstract: Provided are an immediately-before-stirring-type fluid processing device and an immediately-before-stirring-type fluid processing method that can adjust or improve the final properties of a fluid to be processed that is introduced as a raw material into an annular flow channel of a microreactor employing the annular flow channel, which is formed between relatively rotating processing surfaces, as a flow channel in which fluid processing is performed. A fluid to be processed, which has been prepared in a fluid preparing system so as to be in an ideal state for reaction, is charged into a fluid processing device. The fluid processing device subjects the fluid to be processed to reaction processing in an annular flow channel, which is formed between two processing surfaces. A cylindrical stirring space is provided in the radially inner side of the annular flow channel, and a rotor and a screen are disposed inside the stirring space.

Abstract: A forced separation device includes a transmission shaft, a main shaft, an electromagnetic transmission mechanism, a blasting separation mechanism and a pressure-resistant cabin. A pressing cover is fastened to the upper portion of the pressure-resistant cabin. The electromagnetic transmission mechanism is provided with a driving chuck and a driven chuck. The driving chuck is connected with the transmission shaft, the driven chuck is connected with the main shaft, the pressing cover is welded with the transmission shaft, and the driven chuck is welded with the lower portion of the pressure-resistant cabin. The blasting separation mechanism is provided with explosive packages and detonators. A plurality of explosive packages are distributed between the pressing cover and the top surface of the pressure-resistant cabin, and each explosive package is connected with the corresponding detonator respectively. The pressure-resistant cabin is further internally provided with a storage battery.

Abstract: A method is provided for monitoring a milling method for a milling machine provided with a milling tool comprising cutting teeth, the method including: determining measured values of a first parameter corresponding to a bending of the milling tool as a function of a second parameter corresponding to an angle of rotation of the milling tool in a rotating frame of reference of the milling tool and analyzing the measured values as a function of at least one monitoring criterion.

Abstract: The present disclosure relates to a portable socket holder for sockets or bits connectable to a power tool. The portable socket holder comprising socket compartments for different types of sockets or bits. The portable socket holder further comprising visually indication means arranged to visually indicate a socket compartment. Further the portable socket holder comprising a processor and a memory containing instructions executable by the processor, wherein the portable socket holder is operative to visually indicate by means of the visually indication means a socket compartment. The portable socket holder further comprising tightening joint element compartments for different types of tightening joint elements. The portable socket holder further comprising visually indication means arranged to visually indicate a tightening joint compartment.

Abstract: The present specification relates to a two-speed power transmission for a power tool comprising a planetary gear and a torque responsive gear shift mechanism for directing torque through the planetary gear in a high torque/low speed mode or past the planetary gear in a low torque/high speed mode, and comprising a driving member, a driven member, and a number of coupling elements arranged to intercouple in a first position the driving member and the driven member and in a second position the planetary gear and the driven member, the driving member comprising a number of recesses and axially acting first cam means for cooperation with the coupling elements in the first position forming part thereof. The present specification also relates to power tool comprising such a gear unit and a method for controlling such a power tool.

Abstract: The present specification relates to a hand held power tool comprising a housing, the housing comprising a back handle portion at a back end thereof. And a front handle portion at a front end thereof, wherein a motor is arranged in the back handle portion and coupled to an outgoing axle extending through the front handle portion. Wherein the front handle portion comprises an inner tubular structure and an outer tubular gripping sleeve. The outer tubular gripping sleeve is circumferentially supported by at least two vibration absorbing resilient elements arranged around the inner tubular structure, such that a circumferential gap is formed between the inner tubular structure and the outer tubular gripping sleeve.

Abstract: A method for grinding plastic waste includes mixing 30 to 80 wt % of plastic waste and 20 to 70 wt % of a woodchip by a mixer after equalizing the size of a diameter or a side thereof so as to be 5 mm or less, and grinding a mixture thereof into a fine powder with a particle size of 1 mm or less by a grinding device including a rotor rotating at a high speed.

Abstract: The present disclosure relates to a power tool attachment part for a power tool. The power tool attachment part comprises an elongate housing including an upper housing part and a lower housing part interconnected with the upper housing part, an input gear wheel for connection to an output shaft of a power wrench, which input gear wheel is arranged at a first end of the housing, an output gear wheel with an output connection, which output gear wheel is arranged at a second end of the housing, at least one intermediate gear wheel, which is arranged inside the housing to transmit the rotation of the input gear wheel to the output gear wheel, and at least one torque sensor configured to measure a deformation of the elongated housing.

Abstract: A power tool attachment part for a power tool, comprising: an elongate housing including an upper housing part and a lower housing part interconnected with the upper housing part, an input gear wheel configured to be connected to an output shaft of a power wrench, which input gear wheel is arranged at a first end of the housing, an output gear wheel with an output connection, which output gear wheel is arranged at a second end of the housing, an intermediate gear wheel arranged inside the housing and configured to transmit rotation of the input gear wheel to the output gear wheel, a socket arranged concentrically with and radially inside the output gear wheel, and a torque sensor configured to measure the strain on the socket and thereby obtain a measure of the torque at the output gear wheel.

Abstract: A power tool attachment part for a power tool, comprising: an elongate housing including an upper housing part and a lower housing part interconnected with the upper housing part. An input gear is configured to be connected to an output shaft of a power wrench, which input gear is arranged at a first end of the housing. An output gear has an output interface. The output gear is arranged at a second end of the housing. A first intermediate gear is arranged inside the housing and configured to transmit torque of the input gear to the output gear. The first intermediate gear is rotationally mounted on a first intermediate gear shaft. A torque sensor is configured to measure radial forces acting on the first intermediate gear shaft to thereby obtain a measure of the torque at the output gear.