Abstract: A tool turret includes a turret housing and a turret head rotatably mounted in and relative to the turret housing to selectable angular positions about a rotational axis. A preliminary indexing bolt secures the turret head in one of the angular positions following movement of the turret head between angular positions. A three-phase synchronous motor forms a rotary drive for the turret head and has at least first and second sets of pole pairs. The first set provides a first indexing speed. The second set has a smaller number of pole pairs then the first set and provides a second indexing speed. An interlocking member securely interlocks the turret head in any of angular positions.

Abstract: A spindle head for a tool turret has a housing in which a spindle is mounted rotatably. A rotation lock for the spindle includes a bushing arranged to be longitudinally slidable but nonrotatable on the spindle. A securing element is provided on the bushing. The bushing securing element, in its work setting, engages a securing element on the housing, limiting the axial movement of the bushing relative to the housing in the direction of the form-locking engagement of the two securing elements, and can be disengaged by an axial movement of the bushing counter to the force of a prebiased spring in a direction away from the housing securing element. At least some of the cooperating surfaces of the securing elements in the work setting are inclined with respect to the axial direction to a degree that excludes self-locking.

Abstract: For changing the tool disk connected detachably and rotatably to the housing of a tool turret, a work-locating fixture is provided. The tool disk can be moved out of its work setting in which it is coupled with the drive shaft for rotation by a rotary drive. The tool disk movement is in the axial direction of the drive shaft away from the housing until the tool disk reaches transfer position. The drive shaft and a tie rod coupled to the drive shaft are then rotated by the rotary drive out of a connected setting into a detached setting. In the detached setting, the connection between the tie rod, which tie rod is slidable in its axial position relative to the housing and the tool disk, is disconnected, so that the tie rod can then be lifted out of the tool disk.

Abstract: A tool turret includes two toothed rims concentric to the rotary axis of its turret head and arranged radially adjacent to one another. One rim is immovable relative to the turret head. The other rim is immovable relative to the turret housing. The teeth of the toothed rims point toward a position-locking member arranged in an axial direction adjacent and coaxial to both of the toothed rims. The toothed rims can be held by a piston which is axially slidable to a position-locking setting, in which its teeth engage the teeth of the two toothed rims without any play. The piston is part of a pneumatic assembly. The angle formed by the sides of each tooth of the toothed rims and the position-locking member is reduced from the conventional value of 60.degree.

Abstract: A hollow column is provided for a tool turret with a housing that is to be connected to a machine tool or the like, with a drive motor, and with a tool disc which has receptacles for tools, the tool disc being mounted rotatably relative to the housing and being lockable in selectable angular positions. The hollow column is nonmoveable relative to the housing. A shaft which extends in the longitudinal direction of the column, and which can be driven by the drive motor is disposed within the hollow column. That tool, which is inserted into the receptacle that is situated in the working position, can be driven by the shaft. At least one line is provided in the column so as to be part of a system provided for the transfer of energy, lubricant, coolant, pressure or the like.

Abstract: For controlling the locking of the rotatable tool holder of a tool turret, the angular position of the tool holder is determined by a rotating transmitter. The rotating transmitter is rotated corresponding to the rotary movement of a control and synchronization device. Digital signals are produced with the aid of the rotating transmitter. Each digital signal is associated with one angular position of those which may be selected. With each of these signals, the indicator is changed in those two angular positions of the control and synchronization device for locking and unlocking of the tool holder at each of its angular positions. The indicator is changed by the rotary movement of the device in one or the other direction out of the associated angular position and into the angular position associated with the locking of the tool holder. These rotary transmission signals are used to control the locking.

Abstract: An apparatus for removing binding wire from a bale. The bale containing a plurality of peripheral baling wires is supported on a conveyor and a cutting knife moves vertically along the bale to cut the wires. A pair of gripping knives are located on the opposite side of the bale from the cutting knife and the gripping knives more respectively from the upper and lower ends of the bale toward the vertical midpoint of the bale to gather the cut wires together. The gathered cut wires are engaged by a rotatable winding mechanism which acts to wind the cut wires and remove the wound wires to a discharge site.

Abstract: A tool turret has a locking mechanism part which can be thrust axially relative to the turret head and a control member which is motor powered. The control member is arranged concentric to the rotary axis of the drive shaft of the turret head. The drive shaft is joined inflexibly with the turret head for driving the turret head and is coupled by a flexible clutch or joining device with the control member. A carrier or drive device couples the locking mechanism part with the turret head for concurrent rotation.

Abstract: A tool turret has a locking mechanism part axially slidable relative to the turret head with a face gear engaging face gears of the turret head and the housing in its locked position. The axial slidability of the locking mechanism part out of its locked position and the curtailibility of an opposing compression spring allows disengagement of the face gear of the locking mechanism part from at least one of the other two face gears. The force of the compression spring during the load on the turret head arising in disturbance-free operation is greater than the force working through this load on the locking mechanism part in the direction of disengagement of its face gear. In case of a collision with a stress exceeding the load capacity of the tool turret, the force of the compression spring is smaller than the collision force working through this load on the locking mechanism part in the direction of a disengagement of its face gear.

Abstract: A tool turret has a locking mechanism part which can slide axially relative to the turret head. The locking mechanism part is aligned with annular gears of the turret head and of the housing. In its locked position, an annular gear on the locking mechanism part mates with the gears of the turret head and housing. An axial drive engages a control member which is rotatable relative to the locking mechanism part and has at least one curved sector. The curved sector has a shape for thrusting the locking mechanism part into its locked position by a continuation of the rotary movement of the control member relative to the locking mechanism part in the direction of the preceding rotary movement setting the new angular position of the turret head.

Abstract: In a pulping apparatus including a pulper with a rotor near the bottom therein, the pulper has a sluice outlet at the bottom for acceptable pulp suspension. Above the rotor at a corner of the pulper is a second outlet for suspension and dirt. A conduit leads from the second outlet to a horizontally oriented withdrawal apparatus chamber having a suspension agitating rotor at the end of the chamber opposite the entrance for pulp thereinto. A tangential outlet from the withdrawal apparatus chamber lead to a rotary, perforated sorting drum which permits exit of acceptable suspension and which has a rejected suspension and dirt outlet. A valve in the inlet to the withdrawal apparatus chamber is periodically and cyclically opened to permit periodic replacement of the suspension in the withdrawal apparatus chamber, and the suspension which has been agitated in the withdrawal apparatus chamber then moves to the sorting drum.

Abstract: In a pulping apparatus including a pulper with a rotor near the bottom therein, the pulper having a sluice outlet at the bottom for acceptable pulp suspension. Above the rotor at a corner of the pulper is a second outlet for suspension and dirt. A conduit leads from the second outlet to a horizontally oriented withdrawal apparatus chamber having a suspension agitating rotor at the end of the chamber opposite the entrance for pulp thereinto. A tangential outlet from the withdrawal apparatus chamber leads to a rotary, perforated sorting drum which permits exit of acceptable suspension and which has a rejected suspension and dirt outlet. A valve in the inlet to the withdrawal apparatus chamber is periodically and cyclically opened to permit periodic replacement of the suspension in the withdrawal apparatus chamber, and the suspension which has been agitated in the withdrawal apparatus chamber then moves to the sorting drum.

Abstract: An arrangement is provided for use in treating suspensions of waste paper in waste paper dressing plants. The arrangement includes a comminuting apparatus which includes a disintegrating rotor wheel which has a transport and disintegrating affect is provided in combination with a pulper device. The disintegrating rotor wheel is adapted to rotate in advance or otherwise in front of a sieve arranged perpendicular to the axis of rotation of the disintegrating rotor wheel and which divides the interior of the comminuting apparatus into a useful fraction compartment and a disintegrating compartment. A conduit tube is provided for connecting the pulper device to the comminuting apparatus and is connected to the pulper device at the bottom, side or center thereof. In this manner, only that portion of the suspension which includes the impurity contents is transported from the pulper device to the comminuting apparatus. The comminuting apparatus thus serves to remove accumulated impurities from the pulper device.

Abstract: An apparatus for pulping paper into a pulp suspension is disclosed. A vertical container has an upper paper pulping zone and a lower pulp diluting and outlet zone beneath the pulping zone. A narrowed despecking slot communicates between the two zones. A rotor in the container circulates and breaks up the paper in the presence of the liquid in the pulping zone. Ribs on the rotor cooperate with stators in the container for defining the despecking slot. A pulp suspension dilution water inlet communicates into the dilution zone. The outlet from the container also communicates from the dilution zone. A screen protects the outlet from the dilution zone against exit of large particles therethrough and vanes on the rotor clean the screen.

Abstract: The invention concerns a pulp grinder in which feed devices force the wood against the grinder stone and in which there is an elevated level of water in the grinding zone. Sealing devices or plates extend between the walls of the wood-supply chutes or pusher chambers and the grinder stone to keep the water level high only in the grinding zone. The sealing plates are adjustable for controlling the liquid level in the grinding zone.

Abstract: The disclosure concerns apparatus for disintegrating waste paper and for sorting out fibers to be recovered from the suspension. There is a disintegrating chamber connected by a gravity feed discharge line to a drum type or vibration sorting device. A circulating member disposed in the disintegrating chamber rotates about an axis that is tilted at a small acute angle from the vertical. A screen located beneath the circulating member separates the disintegrating chamber from a discharge chamber beneath the screen. The screen sorts out coarser particles letting only finer suspension paticles pass into the discharge chamber. A first suspension discharge line communicates with the discharge chamber while a second suspension discharge line communicates with the disintegrating chamber immediately above the screen. Both discharge lines empty into each other and lead to the sorting device. Appropriate slides control flow through the two discharge lines.

Abstract: An apparatus for controlling the level and discharge of a suspension or slurry of ground wood in a mechanical wood pulp forming process is described. The apparatus includes, below a wood grinder, a trough in which a slurry of ground wood is formed. The ground wood slurry is passed through a discharge port, which is located near the trough bottom, into a conduit in which a valve is located. The valve is controlled by a slurry level sensor so as to maintain the slurry level at a desired level at least higher than the discharge port. A wood chip cutter is employed at the discharge port and is sized to minimize blockage and facilitate removal of the slurry from the trough. In one form of the invention an apparatus for pressurizing the housing enclosing the wood grinder is described and in another form an open housing structure is shown and described.

Abstract: The disclosure relates to apparatus for producing mechanical wood pulp of the type having a grinding stone with at least one wood supply chute in which the wood which is to be ground is pressed onto the grinding stone. A trough or a collecting channel is placed underneath the grinding stone. A water supply device moistens the grinding stone at the grinding zone. At least one closed water tank is set up on the grinding stone in front of the wood supply chute, viewed in the direction of rotation of the grinding stone. The water tank is sealed at least on the side furthest away from the supply chute. The tank has a supply line for pressurized water and has outlet holes directed toward the surface of the stone. Preferably, sealing of the water tank is effected by a sealing plug at the grinding stone which plug is adjustable with respect to the grinding stone to accommodate wear of the plug from the stone.

Abstract: The disclosure concerns a process for grinding wood on a grinding stone and the grinding stone which grinds the wood. The grinding stone has a central core, which may be comprised of concrete or steel. The core has a free inner space. A water supply line extends along the free inner space. Outlets from the water supply line are directed toward the periphery of the core at the grinding zone of the grinding layer. Around the core is a grinding layer for grinding the wood. The grinding layer is permeable so that water can be transmitted through it. The permeability may arise from the porosity of the material of the grinding layer itself or through the provision of bores or gaps in the grinding layer. The grinding layer may be comprised of a group of segments covering the core and the gaps may be defined between segments. The core may have bores for delivering the water to the inside of the grinding layer. The water may be heated and/or pressurized for improving grinding.

Abstract: The invention concerns a wood pulper of the kind in which wood is fed via a hopper having advancing elements arranged on two opposite sides by which wood is advanced to a grinding stone. The invention is characterized in that said advancing elements comprise a plurality of driven shafts which are arranged parallel to and adjacent each other substantially transverse to the feed direction, said shafts being equipped with a plurality of toothed discs lying adjacent to each other. This arrangement enables the driving force to be distributed over a plurality of feed shafts, so that a continuous compression can be obtained which increases as the wood feeds through the hopper.