Abstract: A drill stand (1) for a manually operable tool device (2) is formed of a fixedly mountable base plate (4) having a through passageway (5) extending perpendicularly therethrough for the passage of a clamping bolt (6) having at least one axially effective stop shoulder (7a, 7b), so that at least one detent means (8) with an axially effective counter shoulder (10a, 10b) for axial form-locking engagement of the shoulder stops (7a, 7b) of the clamping bolt (6). At least one manually operable eccentric cam (11a, 11b) affords axial clamping of the clamping bolt (6) locked by the detent means (8) and arranged relative to the through passageway (5).

Abstract: A method for fabricating a prism that comprises a first and a second substrate, both translucent, bonded together with an optical thin film interposed at the interface in between and that is used with the interface inclined relative to the optical axis of incident laser light of a wavelength of 420 nm or shorter includes the step of bonding together the first and second substrates of which the difference ?N1 in refractive index at the wavelength of the laser light fulfills the condition: ?N1?|1/(0.3×104×NA×t)|, where t represents the thickness of the first and second substrates cemented together as measured along the optical axis of the laser light, and NA represents the numerical aperture of the incident laser light.

Abstract: The object of the invention is a device, intended for a multifunctional, hand-held tool machine, for example, an electric combination hammer, for the ON/OFF switching or changeover of individual system functions when changing the processing mode, for example, from “hammer drilling” to “chiseling”. Pursuant to the invention, the changeover device, which is to be actuated by the user, is coupled with a mechanical driving mechanism, by which a bistable switch, comprising two mutually oppositely movable elements, is actuated. In a combination hammer, the invention guarantees that, when the chiseling operation is selected, certain functions of the system, such as a monitoring of the reaction moment, are interrupted or changed over.

Abstract: An image taking apparatus has a solid-state image-sensing device, a shutter for shutting off the light incident on the solid-state image-sensing device, and a zoom optical system. The optical aperture stop of the zoom optical system and the shutter are located both on the optical axis but at different positions. During zooming, while the optical aperture stop moves along the optical axis, the shutter is kept stationary. The zoom optical system has an optical member having an optical power disposed on the image-plane side of the shutter.

Abstract: Disclosed herein is a solid-state image sensing device comprising a plurality of pixels. Each of the pixels comprises (1) a photodiode for generating an electric signal according to an amount of light projected thereto, (2) a converter capable of logarithmically converting the electric signal into a converted electric signal while a first voltage is biased, and (3) a switching element for electrically connecting and disconnecting the photoelectric converting element and the converter. The switching element electrically disconnects the photodiode and the converter while outputting an electric signal for correcting a sensitivity unevenness among the plurality of pixels. The converting element is temporarily biased by a second voltage before taking the image, the second voltage being suitable for discharging an electric charge from the photodiode and being different from the first voltage.

Abstract: A laboratory with a rotor driven by a centrifuge electric motor and a cooling unit driven by an electrical cooling motor, wherein the centrifuge motor is formed as a frequency-controlled induction motor fed from a frequency converter controlled by a control unit and having a centrifuge inverted rectifier that feeds the centrifuge motor and is connected to a d.c. source fed from a mains power rectifier, characterized in that the cooling motor is formed as a frequency-controlled induction motor, and that the frequency converter has a further cooling inverted rectifier connected to the d.c. source parallel to the centrifuge inverted rectifier for feeding the cooling motor.

Abstract: An electrical tool includes a housing having inlet (7) and outlet (8) openings, a brushless electric motor (2) and an inverted rectifier (3) both arranged in the housing (9) between inlet (7) and outlet (8) openings in an air stream (5) of an air volume (6), and a link condensator (10) located in the housing (9) in the air stream (5), with the inverted rectifier (3) being arranged, in the air flow direction, downstream of the link condensator (10) and upstream of the electric motor (2).

Abstract: An image-taking apparatus has an image sensor for converting an optical image into an electrical signal, and a taking lens system for forming the optical image on the light-receiving surface of the image sensor. The most object-side surface of the taking lens system is an aspherical surface that has a positive optical power in a central portion thereof and a negative optical power in a peripheral portion thereof, and the following condition is fulfilled: ?90<Da<?20, where Da represents the distortion (%) observed at the maximum half view angle in the diagonal direction of the image sensor.

Abstract: An overload protection arrangement for a portable power tool includes a magnetic clutch (5) arranged in a drive train of the power tool between an electromotor (1) and a tool chuck (3), control electronics (6) for controlling the magnetic clutch (5), a self-actuated torque-dependent overload clutch (7) likewise arranged in the drive train, and a sensor (8) for detecting an open condition of the overload clutch (7) upon the overload of the drive train and connected with the control electronics (6).

Abstract: The invention relates to a method and a system for providing a decision support for users for selecting drilling and cutting elements for use in a construction material region, wherein areas of application of aggregate materials for concrete as a factor of the different drilling and cutting resistances of the aggregate materials in the zones are grouped in a geographical information storage medium. In this geographical information storage medium, a reference number is assigned to each of the zones, which represent a drilling and cutting resistance of a specific magnitude. The drilling and cutting elements to be used in an area of application of aggregate materials of specific drilling and cutting resistance are provided with a reference number corresponding to the reference number of the zones.

Abstract: A gear transmission assembly for an electrical power tool includes a housing (6), a multi-stage gear train (1) located in the housing and having a plurality of axially displaceable indexing gears (4a, 4b) associated with respective stages of the gear train (1) and a shift device (2) for shifting the gear train (1) from one stage to another and having a shifting slide (3) displaceable from one shift stage to another, and a plurality of springable shifting stirrups (5a, 5b) connected with the shifting slide (3) and cooperating with respective indexing gears (4a, 4b) for displacing same in response to displacement of the shifting slide (3) between shift stages.

Abstract: Embodiments of present invention may provide a motor control drive circuit for driving a motor by receiving signals from a digital signal control device. The motor control drive circuit includes a switching unit receiving signals that have undergone pulse width modulation (PWM signals) in the digital signal control device, and converting a switching state based on the input signals; and a controller receiving from the switching unit switching operational signals that vary according to a duty ratio of the PWM signals, receiving digital signals from the digital signal control device, and varying a voltage gain for control of the drive motor. In the motor control drive circuit of one embodiment of the present invention, motor rotation is controlled by the duty ratio of digital signals without the use of a DAC. This allows for the design of an independent digital signal processing device, and enables compatibility with various digital signal processing devices.

Abstract: In an image retrieving apparatus for retrieving a retrieving image in an input image, a color histogram of an image in a retrieving area in the input image is compared with a color histogram of the retrieving image. At first, a candidate area in which the retrieving image can be included is roughly retrieved by rough image retrieving with selecting a larger retrieving area and a rough resolution of gradation of the histograms. Subsequently, an area including an image corresponding to the retrieving image is precisely retrieved by fine image retrieving with a smaller retrieving area and a fine resolution of gradation of the histograms.

Abstract: A capacitive gauge, suitable for measuring a fluid level in a container, includes upper and lower capacitive elements. Also provided is a control unit for calculating the fluid level in the container based on the capacitance of the upper and lower capacitors and a dielectric constant of the fluid in the container. The control unit also includes functionality for determining and storing the dielectric constant of the fluid in the container. The dielectric constant of the fluid is determined by first verifying whether the lower capacitive element is completely submerged based on a comparison of a measured capacitance of the upper capacitor to a reference capacitance of the upper capacitor. If the lower capacitor is verified to be submerged, then the dielectric constant of the fluid is calculated based on a measured capacitance of the lower capacitor.

Abstract: A digital copier has a memory for storage of image data, reads image data and stores the image data in the memory, and prints an image depending on the image data stored in the memory. The digital copier can also register a plurality of jobs. Based on a registered job an image is printed. Then, based on the subsequent job an image is printed. When an image data corresponding to a new job cannot be stored in the memory, the digital copier effects the process for calculation of job execution time, a process of calculating a free memory capacity, and a process of calculating the time required for obtaining a timing at which a free memory space is provided, to display the time at which the image data corresponding to the new job can be stored. Thus, a digital copier can be provided allowing the user to form images efficiently.

Abstract: An apparatus for adding a coloring agent to a material used to manufacture brick includes an extrusion container having an opening defined in the sidewall thereof. A coloring agent supply communicates with the opening for delivery of the coloring agent to the interior of the container as brick making material passes through the container. A storage device stores the coloring agent supply amount data corresponding to a supply amount for each of a plurality of brick types, each of the plurality of brick types having a different appearance. A controller is adapted to control a supply of a coloring agent from said coloring agent supply into said extrusion container in accordance with a selected brick type. A computer can be connected to the controller for data transfer. Accordingly, the computer can be used as an interface between a user and the apparatus.