Abstract: A method in a fraction collector for accurate positioning of a dispensing device with respect to wells of a micro plate in which prior to the dispensing a sensing device is moved over the micro plate the sensing device being able to detect the number of walls between the wells in the rows and columns of the micro plate.

Abstract: A column packing system comprises a control unit provided with software for calculating the breakpoint where a movable adapter comes into contact with a settled bed of bed media. The calculated breakpoint is used by the control unit to determine how much further the movable adapter has to move into the column in order to achieve a desired amount of bed compression.

Abstract: A method in a fraction collector for accurate positioning of a dispensing device with respect to wells of a micro plate in which prior to the dispensing a sensing device is moved over the micro plate the sensing device being able to detect the number of walls between the wells in the rows and columns of the micro plate.

Abstract: A column packing system comprises a control unit provided with software for calculating the breakpoint where a movable adapter comes into contact with a settled bed of bed media. The calculated breakpoint is used by the control unit to determine how much further the movable adapter has to move into the column in order to achieve a desired amount of bed compression.

Abstract: A column packing system comprises a control unit provided with software for calculating the breakpoint where a movable adapter comes into contact with a settled bed of bed media. The calculated breakpoint is used by the control unit to determine how much further the movable adapter has to move into the column in order to achieve a desired amount of bed compression.

Abstract: A column packing system comprises a control unit provided with software for calculating the breakpoint where a movable adapter comes into contact with a settled bed of bed media. The calculated breakpoint is used by the control unit to determine how much further the movable adapter has to move into the column in order to achieve a desired amount of bed compression.

Abstract: A rock drill bit for percussive drilling, especially top hammer drilling, includes a bit head provided with front rock crushing buttons and a skirt. The bit head is provided with a number of grooves formed in the outside of the skirt and extending in the axial direction of the drill bit. Protruding lands are defined between the grooves, which likewise extend in the axial direction. Axially rearward ends of at least some of the lands are formed with retrac teeth. Each retrac tooth has a cutting edge extending along an outer circumference of the skirt.

Abstract: The present invention related to a drill bit (10) for rock drilling, preferably a down-the-hole drill bit, said drill bit (10) including a head (11) and a shaft (12), said head (11) defining a cutting face (14) that carries a number of hard material button inserts (15) having end portions extending outwardly of said cutting face (14), means (16,17) for transporting flushing medium from the free end (13) of the shaft (12) to the cutting face (14) of the head (11), said means for transporting flushing medium including a central passage (16) extending from the free end (13) of the shaft (12) and terminating in the head (11) short of the cutting face (14) and at least one branch passage (17) emanating from the central passage (16) and emerging in the cutting facc (14).In the field of down-the-hole drill bits big volumes of flushing medium, normally compressed air, are used since the flushing medium is also activating the down-the-hole hammer.

Abstract: A method for manufacturing of a cemented carbide body for cutting tools, rock drilling tools or wear parts with complicated geometry characterized in that the body is sintered together from simpler pressed but unsintered parts to form a body with desired complex geometry.

Abstract: A down-the-hole drill tool comprises a one-piece shaft and pilot bit. The shaft is adapted for connection to a down-the-hole hammer. A reamer and a guide body are detachably mounted to the one-piece shaft/pilot bit. The guide body has a downwardly facing shoulder for pushing a casing tube downwardly along with the tool.

Abstract: A controlled tension cable transport system is disclosed, comprising a pulley with fixed axis and a second pulley whose axis occupies a position which is normally fixed during operation. Four sensors measure the tension of the cable during a previous test phase, with the installation off load, and a computing and control assembly compares the measurement results obtained with admissible limit values, for allowing or preventing operation of the installation. Preferably, the computing and control assembly permanently compares the tension of the cable and the torque of the pulley with respect to admissible threshold values during operation of the installation.

Abstract: A tool for cutting solid material includes a tool body having a recess, and a cutting insert received in the recess. The cutting insert has spacing buttons which engage a surface of the recess to create a space for accommodating a brazing material which secures the insert to the tool body. The surface of the recess includes an annular retaining groove which receives the buttons in order to prevent tilting of the insert prior to brazing.

Abstract: The present invention relates to a tool for cutting solid material, the tool including a tool body having a supporting surface, and a cutting insert having a generally conical tip portion and a shoulder portion that is intended to rest against a supporting surface, the cutting insert being secured to the tool body, e.g., by brazing. The invention also relates to the cutting insert per se. The cutting insert has a concave portion between its tip and bottom which concave portion extends circumferentially around the cutting insert. In addition, a special type of cemented carbide is used for the cutting insert.

Abstract: A tool is mounted in a holder, the holder including a fluid passage for discharging drilling fluid toward a cutting zone. Fluid flow is regulated by a valve in the holder. The valve includes a housing and a valve element movable in the housing. The valve element opens the valve in response to rearward displacement of the tool relative to the holder. The housing of the valve is also rearwardly displaceable relative to the holder whenever rearward forces transmitted from the tool are excessive, thereby avoiding the occurrence of damage to the valve. The valve housing is yiealdably biased forwardly by fluid pressure in the conduit.

Abstract: The invention relates to a cable tensioning device for ski lifts or aerial cableways of the kind comprising an endless transporting cable (1) extending between two rotatable wheels (2) mounted on carriers (4), at least one of the wheels being movable by the fact that its associated carrier is slideably movable relative to a foundation in order to keep the cable tensioned. The carrier (4) is by means of a nut device connected to a suitably rotatable screw (13). A tension sensing device is associated to a power source (19) for causing a rotating relative movement between the screw (13) and the nut device in order to, at an occurred change in the tension of the cable (1), start the power source (15) and effect a movement of the wheel (2) in question a distance relative to the foundation that corresponds to the actual tensional change.