摘要:
An electric hand saw has a stationary sword having a lower side, a reciprocatable saw blade received in the lower side of the sword and having a rear end portion, a machine housing having a transmission outlet in which the rear end portion of the saw blade is received. The machine housing has a longitudinal slot located under the rear end portion of the saw blade. A suction passage is mounted on the lower side of the machine housing and has a sucking-in opening extending from the front end side of the suction passage to the longitudinal slot of the machine housing located under the rear end portion of the saw blade.
摘要:
An electric hand tool guided with both hands has a tool housing, a stationary handle, and an additional movable handle, the additional handle being turnable about a turning axis and being also displaceable longitudinally substantially along the turning axis.
摘要:
A hand machine tool operated with two hands has a machine housing composed of insulating synthetic plastic shells, a fixed, web-shaped main handle formed as a part of the machine housing, an auxiliary handle, a drive including a motor and a transmission, at least one inner housing accommodating the motor and the transmission and surrounded by the synthetic plastic shells, and a tool driven by the drive. The handles, the machine housing, the inner housing and the tool are arranged so that forces applied to at least one of the handles are withdrawn from the machine housing by transferring the forces by the main handle directly to the inner housing without deforming the machine housing and then transferring the forces from the inner housing to the tool.
摘要:
A power-operated sword saw comprises a plate-shaped sword having a lower region with a guiding groove, two saw blades reciprocatingly movable in opposite directions parallel to one another and each having a front saw blade tip and an opposite clamping end. The saw blades have a toothed side provided with a plurality of teeth and an opposite saw blade back guided in the guiding groove of the sword. A drive is coupled with the clamping ends of the saw blades through a clamping unit. The saw blades are jointly coupled with the clamping unit and released from the clamping unit by a blocking element which blocks the clamping ends in a coupling position and release the clamping ends in a contact-free manner.
摘要:
A flat cable having at least two conductor planes, in which a number of electrical conductors running in the longitudinal direction of the cable are arranged, in which the electrical conductors in the flat cable thickness direction and/or in the flat cable width direction are kept at a defined distance from each other by means of a central insulation layer of predetermined thickness acting as a spacer insulator and are electrically insulated and positioned relative to each other and to the flat cable exterior by means of an outer insulation layer.
摘要:
A transversally electrically excited gas discharge laser for generating light pulses with a high pulse repetition rate. The gas discharge laser has components include a gas-tight discharge tube with opposed wall passages and front ends. The discharge tube includes ceramic material with laser gas sealed therein. The components also include partial metal layers disposed on the discharge tube. Decoupling and holding elements including support trays are disposed in the wall passages, with the support trays being adhered with solder to the discharge tube via the partial metal layers. The components also include a pair of electrodes extending axially and disposed in the decoupling and holding elements so as to form a gas discharge path. The components also include a pair of rod-shaped electrodes disposed in the discharge tube that are substantially parallel to the main electrodes and operable to control the starting conditions of gas discharge. The electrical excitation circuit includes a switch to generate a high-current discharge from an energy storage device. Support rings are joined to the front ends of the discharge tube and a pair of optical resonator mirrors are welded into the support rings. At least some of the components are usable with an ultrahigh vacuum and heatable to above a second water boundary. The support trays and the support rings are deformable so as to enable fine adjustment of the main electrodes and of the resonator mirrors.
摘要:
A transversally electrically excited gas discharge laser for generating light pulses with a high pulse repetition rate. The gas discharge laser has components include a gas-tight discharge tube with opposed wall passages and front ends. The discharge tube includes ceramic material with laser gas sealed therein. The components also include partial metal layers disposed on the discharge tube. Decoupling and holding elements including support trays are disposed in the wall passages, with the support trays being adhered with solder to the discharge tube via the partial metal layers. The components also include a pair of electrodes extending axially and disposed in the decoupling and holding elements so as to form a gas discharge path. The components also include a pair of rod-shaped electrodes disposed in the discharge tube that are substantially parallel to the main electrodes and operable to control the starting conditions of gas discharge. The electrical excitation circuit includes a switch to generate a high-current discharge from an energy storage device. Support rings are joined to the front ends of the discharge tube and a pair of optical resonator mirrors are welded into the support rings. At least some of the components are usable with an ultrahigh vacuum and heatable to above a second water boundary. The support trays and the support rings are deformable so as to enable fine adjustment of the main electrodes and of the resonator mirrors.
摘要:
A high-power switching module for directly feeding pulse energy to a load includes a plurality of series-connected switching stages. Each switching stage includes a semiconductor switch; a snubber capacitor and a synchronizing resistor; and a control network configured to act on the semiconductor switch and to be supplied with auxiliary power and switching pulses from a pulse driver so as to influence a switching of the semiconductor switch. The control network includes at least one control resistor, a control diode, an auxiliary diode, an auxiliary capacitor configured to decouple and store the auxiliary power so as to maintain an offset voltage at the semiconductor switch, and an adjustable time-delay element series connected to the control diode and connected in parallel with the control resistor. The adjustable time-delay element is configured to variably set the offset voltage for the semiconductor switch that determines the switching of the semiconductor switch.
摘要:
A method for operating a controller includes receiving a first accumulated thermal value of an electrical machine and an associated first time stamp from a memory, initializing a processor of the controller with the first accumulated thermal value and the associated first time stamp, determining whether a second time stamp has been received, calculating a difference between the second time stamp and the first time stamp responsive to determining that the second time stamp has been received, calculating a second accumulated thermal value as a function of the first accumulated thermal value, the first time stamp, and the second time stamp, and updating the first accumulated thermal value with the second accumulated thermal value.
摘要:
A flat cable having at least two conductor planes, in which a number of electrical conductors running in the longitudinal direction of the cable are arranged, in which the electrical conductors in the flat cable thickness direction and/or in the flat cable width direction are kept at a defined distance from each other by means of a central insulation layer of predetermined thickness acting as a spacer insulator and are electrically insulated and positioned relative to each other and to the flat cable exterior by means of an outer insulation layer.