Abstract: A firewood processor with a tightenable saw chain, which processor comprises a frame arranged to support the firewood processor to a base, such as the ground, and a saw for sawing wood raw material in a transverse direction into an intermediate product of a desired length. The saw comprises a saw chain, a flange for guiding said saw chain and a sprocket, which is arranged to convey the driving force to said saw chain. The firewood processor further comprises a splitting section for splitting the intermediate product of a desired length in the longitudinal direction into a desired size, which splitting section comprises a splitting wedge and means for splitting the intermediate product of a desired length by means of the splitting wedge. In addition, the firewood processor comprises automatic means for tightening the saw chain of said saw and for maintaining the tightness.

Abstract: Traction sheave elevator consisting of an elevator car moving along elevator guide rails, a counterweight moving along counterweight guide rails, a set of hoisting ropes (3) on which the elevator car and counterweight are suspended, and a drive machine unit (6) driving a traction sheave (7) acting on the hoisting ropes (3) and placed in the elevator shaft. The drive machine unit (6) is of a flat construction. A wall of the elevator shaft is provided with a machine space with its open side facing towards the shaft, the essential parts of the drive machine unit (6) being placed in the space. The hoisting unit (9) of the traction sheave elevator consists of a substantially discoidal drive machine unit (6) and an instrument panel (8) mounted on the frame (20) of the hoisting unit.

Abstract: A replaceable cutting piece and a cutting arm for a debarking cutter for a debarking machine of a hollow-rotor type, which cutting piece (6) and cutting arm (4) comprise supporting surfaces and abutment surfaces for receiving loads acting on the cutting piece fastened by a retaining screw to a housing (7) formed in the cutting arm. In order to direct the loads acting on the cutting piece in full to the cutting arm instead of to the retaining screw, the cutting piece and the cutting arm comprise supporting surfaces and abutment surfaces (9a to 9d, 11a, 11b, 12a, 14a, 14b) for receiving the loads acting on the cutting piece in the direction of the axle, the radius and the tangent of the rotor and the torque caused by said loads, which surfaces are situated in perpendicular planes with respect to one another.

Abstract: In the procedure for closing an elevator landing door (3,4), the landing door is coupled with the car door (1,2) by a door coupler, and the car door is moved by an actuator provided in conjunction with the elevator car. During the initial phase of the closing movement, the car door and landing door are moved at the same speed, but towards the end of the closing movement the landing door (3,4) is caused to move faster than the car door (1,2). Based on control by the car door movement, the coupling elements (5,6) of the door coupler are moved in the direction of the car door movement.

Abstract: A people mover such as an escalator or moving sidewalk is driven by a motor having a relatively small axial dimension and is configured to fit in available space, avoiding the need for a machine room for these components, thereby simplifying the incorporation of the people mover into a new or existing building design.

Abstract: Traction sheave elevator consisting of an elevator car moving along elevator guide rails, a counterweight moving along counterweight guide rails, a set of hoisting ropes (3) on which the elevator car and counterweight are suspended, and a drive machine unit (6) driving a traction sheave (7) acting on the hoisting ropes (3) and placed in the elevator shaft. The drive machine unit (6) is of a flat construction. A wall of the elevator shaft is provided with a machine space with its open side facing towards the shaft, the essential parts of the drive machine unit (6) being placed in the space. The hoisting unit (9) of the traction sheave elevator consists of a substantially discoidal drive machine unit (6) and an instrument panel (8) mounted on the frame (20) of the hoisting unit.

Abstract: Rail brake (1) for an elevator, comprising a brake body attached to the elevator car, a clamp part comprising jaws (3,4) that engage a guide rail (2) via braking surfaces during braking. A spring (10) generates a load on the clamp part to press the braking surfaces against the guide rail, and a magnet whose force produces an effect reverse to that of the spring releases the braking surfaces from the guide rail. The clamp part is floatably suspended relative to the brake body. The motion of the clamp part relative to the brake body is controlled by the guide rail (2).

Abstract: A safety gear (1) comprising a frame provided with a braking surface, which, when the safety gear is braking, is pressed against a first guide surface of a guide rail. Mounted in the frame is a roller (3), which moves along a track in the safety gear. The track comprises at least a first gradient and a second gradient, the first gradient having a larger pitch angle than the second gradient. The roller is pressed against a second guide surface of the guide rail when the safety gear is braking. The roller (3) has a stronger grip on the track on the first gradient than on the second gradient.

Abstract: In the control of the hoisting motor (5) of an elevator, the output (25,125) of the motor drive is generated using a signal (23,127) proportional to the rotation of the hoisting motor as feedback signal during passages between floors. At or near a landing, the position of the elevator car (1) in relation to the landing (8) is measured using a sensor (10) placed on the elevator car, and the position signal (25,125) is utilized to produce a reference for controlling the hoisting motor.

Abstract: A sliding safety gear designed to brake by gripping an elevator or counterweight guide rail includes a flexible frame surrounding the guide rail in the directions of the guiding surfaces of the guide rail. The frame is provided with a braking surface that meets a first guide surface of the guide rail when the sliding safety gear is braking. Attached to the frame is a force element that meets a second guide surface when the sliding safety gear is braking. The cross-section of the frame of the safety gear is substantially in the shape of the letter C. At least one of the ends of the jams of the C-shape is inside the C-shape.

Abstract: A procedure and apparatus for the measurement of elevator load uses a load measuring apparatus. The elevator comprises an elevator car (17) travelling along guide rails (2) in an elevator shaft, a counter-weight (20), a hoisting machinery (18, 19), a control unit, and hoisting ropes (11) attached at least by one end to an anchorage (21) in the elevator shaft. The load measuring apparatus (16) comprises a strain gauge (15) which outputs an electric signal corresponding to the load. The load measuring apparatus (16) is attached in conjunction with the anchorage (21) of the hoisting rope ends to a fixed place in the elevator shaft.

Abstract: The stator disc (11) of a disc motor type elevator machinery has a cuplike or ring-shaped annular cavity (20). The stator (9) is attached to one of the walls of the cavity. The traction sheave (4) is attached to the rotor disc (14) on the opposite side relative to the stator core packet (12) of stampings. The diameter of the traction sheave is smaller than that of the stator core packet (12). A sealing (24) is provided between at least one (22) of the cavity (20) walls and the rotor disc (14) to block the access of external particles into the rotor and stator.

Abstract: The stator disc (18) of the motor (2) of a disc motor type elevator machinery is s provided with an annular cavity (19a) in which the stator (9) is placed. The stator (9) is attached to one of the walls of the cavity. The rotor (13) is placed in a rotor disc (12). Between at least one (28a) of the walls of the cavity (19a) and the rotor disc (12) there is a sealing (26a) which seals the cavity so as to render it a closed space. The sealing blocks the entry of external particles into the rotor and stator.

Abstract: A manually activated elevator braking release including an actuating element placed away from the brake and a mechanical power transmission system for transmitting releasing power from the actuator to a brake element. The actuator is placed on a landing and a window is provided near the actuator so that an operator can observe movement of the hoisting ropes and/or traction sheave. Arrival of the elevator car at one of the landing zones is indicated in a manner allowing it to be perceived from a position near the actuator.

Abstract: An elevator motor (2) employing permanent magnets (30) attached in a circle on the surface (36) of the rotor disc (12). The rotor disc (12) forms part of both the magnetic circuit and the supporting structure of the rotor (13). The permanent magnets (30) are placed in a separate cavity formed in the stator disc and having one side open, said cavity also housing the stator windings (17). The outer cavity wall directed towards the rotor disc (12) is provided with a sealing member to close the cavity.

Abstract: A people mover such as an escalator or moving sidewalk is driven by a motor having a relatively small axial dimension and is configured to fit in available space, avoiding the need for a machine room for these components, thereby simplifying the incorporation of the people mover into a new or existing building design.

Abstract: In the procedure for closing an elevator landing door (3,4), the landing door is coupled with the car door (1,2) by a door coupler, and the car door is moved by an actuator provided in conjunction with the elevator car. During the initial phase of the closing movement, the car door and landing door are moved at the same speed, but towards the end of the closing movement the landing door (3,4) is caused to move faster than the car door (1,2). Based on control by the car door movement, the coupling elements (5,6) of the door coupler are moved in the direction of the car door movement.

Abstract: A feeding roller for a log feeding device of a debarking machine, said feeding roller (1) comprising a substantially drum-like body (3) and a rib formation (5) consisting of ribs (9) provided in separate rib elements (6) to be fastened to the circumference of said body (3) for feeding and centring a log. To allow the feeding roller to be adapted for different tree species and different debarking conditions, separate replaceable sets of rib elements (6) are provided for the body of the feeding roller, the design (a-d, r) of the ribs being different in separate sets of rib elements for different tree species and debarking conditions.

Abstract: The screw pump (1) has a driving screw (6) and at least one side screw (7), which are placed in a screw channel (5) in the pump body (2), between a suction space (3) and a pressure space (4). At least one of the clearances between the surfaces of the driving screw, side screws and screw channel is larger in the areas close to the suction and pressure spaces than the corresponding clearance in the middle portion of the pump channel. The magnitude of the clearances is so fitted that the total leakage flow (V) between the suction and pressure spaces through the clearances is substantially the same for all angles of rotation of the screws (6,7). Preferably the clearance fit is achieved by reducing the diameter of the screw at its ends so that the change in the external diameter of the reduced portion has at least two different values.

Abstract: A procedure for allocating the calls entered via landing call devices of the elevators in an elevator bank forms several allocation options. Each allocating option contains, for each active landing call, a call data item and an elevator data item which together are used to determine which elevator should service the call. The value of a cost function is calculated for each allocation option; one or more of the allocation options is repeatedly changed with respect to at least one data item, and the values of the cost functions of the new allocation options are calculated. Based on the values of the cost functions, the best allocation option is selected and the active elevator calls are allocated to the elevators in the elevator bank accordingly.