Abstract: A swirl type foreign material removing machine is formed of a casing having an end wall, a smooth side wall connected to the end wall and extending from the end wall, a first outlet formed at a side away from the end wall, an inlet formed in the side wall at a side away from the first outlet, and a second outlet formed in a center of the end wall. A raw material supply path is tangentially connected to the casing through the inlet, and a device for adjusting an opening rate of the inlet is formed in the side wall. An amount of the raw material ejected into the casing is adjusted by the adjusting device, so that the foreign materials are effectively removed from the first outlet.

Abstract: An apparatus for refining a paper material is formed of a casing, a first chamber situated in the casing and having first and second openings, a second chamber situated inside the casing adjacent the first chamber and having a third opening, a screen plate for dividing the casing into the first and second chambers, and an agitating member situated inside the first chamber adjacent to the screen plate for agitating the paper material in the first chamber. The screen plate removes a part of foreign substances in the paper material. In the invention, a cleaning device for removing the other part of the foreign substances contained in the paper material is situated in the first chamber or the second chamber. The cleaning device is formed of a plurality of cleaners. The paper material supplied from the first opening passes through the cleaning device and the screen plate, and is discharged from the third opening so that the one and the other foreign substances are substantially removed from the paper material.

Abstract: A composite type screen includes a machine main body divided into a first structural part in which a first processing chamber is contained and a second structural part in which a second processing chamber is contained and a screen plate is interposed between the surfaces of the first structural part and the second structural part. Since a first rotary shaft having an impeller mounted thereto is disposed in the first processing chamber and a second rotary shaft having a rotor mounted thereto is disposed in the secondary processing chamber, the first rotary shaft does not pass through the first screen member. As a result, a seal member for the first screen member is not needed, whereby the number of parts is reduced and moreover a paper material can pass through the entire region of the first screen member and the area thereof through which the paper material passes is increased, so that a foreign substance removing efficiency can be improved.

Abstract: The paper stock cleaning and collecting apparatus of the present invention includes a tank with an open top for receiving and storing therein a paper stock, a cylindrical screen for dividing an interior of the tank into a first chamber and a second chamber, a cylinder-type rotational element coaxially provided with the cylindrical screen in the first chamber, a paper stock supply pipe attached to the first chamber at one side to supply the paper stock in the tank, a discharge pipe for discharging foreign materials contained in the paper stock in the first chamber of the tank, and a paper stock adjusting device communicating with the second chamber and adjusting the paper stock in the tank to a predetermined amount to remove unnecessary materials in the second chamber. A circulation passage for connecting an intake side of the rotational element in the first chamber and an exhaust side thereof may be formed.

Abstract: A paper material screening and refining apparatus has a tank which receives a paper material to allow the paper material to accumulate therein; a cylindrical screen which divides the space in the tank into a primary chamber and a secondary chamber; a cylindrical rotary member carried by a rotary shaft and disposed so as to oppose to the screen; a rotational member carried by the rotary shaft and disposed near the end of the tank remote from the paper material receiving end of the tank; a water supply pipe for supplying water into the primary chamber from the region near the rotational member; a water supply valve provided in the water supply pipe; a discharge pipe for discharging the paper material in the primary chamber of the tank from a region near the rotational member; and a discharge valve provided in the discharge pipe.

Abstract: A stock screening apparatus has a material supply port which communicates with a material supply passage, and a first discharge port which communicates with a first discharge passage. The first discharge passage is located within a downward projected image of the material supply passage. In consequence, the stock which flows into a primary chamber flows in a vortex along the periphery of the primary chamber, and the foreign materials contained in this vortex, such as stones or metals, can thus be discharged through the first discharge passage when they are moved to the first discharge port. Also, a rotary shaft of a drum-shaped rotary body is disposed horizontally. An opening of the portion of the primary chamber located downstream of the drum-shaped rotary body and that of the secondary chamber are closed by a cover.

Abstract: A paper material refining apparatus has a tank the space in which is divided by a drum-type screen plate into a primary chamber and a secondary chamber, and a material supply pipe for supplying the paper material and a drum-shaped rotor for rotating the material are disposed in the primary chamber. The drum-type rotor is disposed such that its peripheral surface opposes the drum-type screen plate, with the top plate thereof facing the open end of the material supply pipe. The drum-type rotor is provided with step-like projections on the outer peripheral surface thereof. Foreign matters contained in the paper material such as metal pieces are struck by the top plate of the rotor and displaced radially outward by the centrifugal force.

Abstract: An apparatus for refining a starting material for paper containing heavy and light foreign substances and an ink material generally comprises a primary chamber having one end opened as a port, a secondary chamber connected coaxially with a contiguously to the other end of the primary chamber on the downstream side thereof, a screen plate interposed between and separating the primary and secondary chambers, the screen plate being provided with through holes such as fine slits, and an impeller disposed in the primary chamber at the central portion thereof near the screen plate and provided with pump-up vanes to be rotated by a driving device to create a swirling motion in the primary chamber.

Abstract: A high density pulp slurry screening apparatus is disclosed which has a cylindrical casing including a first chamber in the center with an intake port for introducing unrefined pulp slurry and a discharge port for discharging foreign matters which have been separated from the pulp slurry and a pair of second chambers disposed on the sides of the first chamber for accepting the pulp slurry. The first chamber and each second chamber are divided by a screen plate with a plurality of screening apertures on the entire surface thereof for passing the refined pulp slurry from the first chamber into the second chamber. In the first chamber are provided a pair of stirring impellers rotating in the opposite directions for stirring and agitating the incoming pulp slurry and causing substantial turbulence to effect a uniform positive pressure distribution along the entire surface area of the screen plate and a smooth and efficient passage of the pulp slurry.

Abstract: A binding machine having a base and a binding arm pivoted to the base, for tightly binding articles to be inserted between the base and the binding arm with an adhesive tape which is fed from a tape reel to a tip portion of the binding arm, by swinging down the binding arm toward the base.