Abstract: A method is disclosed for reducing vibrations in revolving disc cutters used for cutting a running web. The method includes the step of coating the disc cutters, at least partly, with a layer having substance components with a high internal friction. Preferably, the disc cutters are made cup-formed so that they have a convex side and a concave side, whereby the coating is applied to the concave side of the cutters. Tough plastic, preferably epoxy resin or rubber, mixed with metal powder, can be used as a coating layer.

Abstract: A water closet including a body portion with an upper level and a lower level, and integral with the body portion, a closet bowl and an outlet conduit forming an odor seal at the bottom of the bowl. The odor seal has an outlet crest determining its highest water level. There is a flush water container adjacent to the body portion and means for flushing the closet bowl with water passing by gravity from the flush water container through the bowl and the outlet conduit. Further, the odor seal outlet crest is at a height level of at least 50 percent of the height of the upper level of the body portion measured from the lower level thereof, and close to the upper level there is an annular flush duct of substantially bottomless configuration opening into the bowl at a level above the odor seal outlet crest, and, in addition, the outlet conduit has a constriction at its outlet end.

Abstract: A method for providing a running web with a perforation pattern fitting into printed image units successively printed on the web. The method includes the steps of performing a longitudinal perforation in a separate longitudinal perforator and performing a transverse perforation in a transverse perforator, wherein the perforation is divided to be carried out by a plurality of separate units. The pitch of the transverse perforation rows in the longitudinal direction of the web is controlled by changing the relative position of the transverse perforation units with respect to each other in accordance with the desired perforation pattern. The transverse perforator can be formed by a plurality of transverse perforation units each having a die roll in cooperation with two needle rolls placed diametrically at opposite sides of the die roll.

Abstract: A cylinder lock assembly is disclosed which comprises an outer cylinder having a front end with a key hole and a rear end with an end member. The outer cylinder encloses a rotatable inner cylinder. The end member and the outer cylinder are provided with mutually corresponding groove arrangements forming an axially fully interlocking attachment, between these two parts. The end member is insertable in a radial direction into the outer cylinder for attaching it thereto. The assembly also includes an attachment locking member engaging the outer cylinder and the end member in order to lock the end member to the outer cylinder in radial direction. The assembly can also be provided with a latch member arranged to move radially guided by the end member and the outer cylinder. The latch member may also serve as a fastening member of the assembly.

Abstract: A loading arrangement for obtaining an equally distributed pressure load in a cylinder stack included in a printing unit of an offset printing press, comprising a plurality of cylinders each having a cylindrical body portion and stub shafts at both ends, journalled in bearings. The arrangement includes axially short load rollers for producing a pressure load to the outermost cylinders of the stack. The rollers are located to act on portions between the bearings of the cylinders, and hence, the pressure load is transmitted directly to the body portions of the outermost cylinders. This minimizes the deflection of the cylinders.

Abstract: A door closer is connected to a door. The movements of the door cause a piston member in the door closer to pump a pressure medium through a flow duct. There is also a flow limiting member influencing at least the speed of the opening movement of the door, and this flow limiting member cooperates with an adjustable activating element which, at a desired opening moment mechanically sets the elements of the flow limiting member in a position considerably increasing the flow resistance of the pressure medium. This brakes the movement of the piston member, and thus, also the movement of the door.

Abstract: A locking device for a bicycle or a corresponding lockable unit, which comprises a locking member swingable from a releasing position through a wheel of the lockable unit to a locking position and vice versa. A catch is provided to receive the free end of the locking member and a cylinder lock is attached to the other end of the locking member; and, in order to move the free end of the locking member into the catch and to remove it therefrom, the locking member has to be turned around a longitudinal axis. The swinging movement of the locking member between its locking and releasing positions is dependent on the turning position of the locking member so that the swinging movement can be carried out only when the locking member is in a certain turning position.

Abstract: A cylinder lock comprising a cylinder housing, a cylinder turnable therein, and in the cylinder, a plurality of locking discs turnable by the key of the lock. The locking discs are arranged in separated relation from each other by immovable intermediate walls in the cylinder. Thus, each locking disc has its own firmly fixed turning space.

Abstract: A method and a device for blowing gaseous medium between the propeller and the hull of a ship the vibration and noise caused in the ship by its driving propeller is considerably reduced. In order to optimize the application of this noise reducing method the total flow Q of the gaseous medium blown out should, expressed in normal cubic meters per hour, satisfy a special formula.

Abstract: A method for the production of a cylinder lock with a fixed cylinder housing, a turnable cylinder therein and a number of locking discs turnable by the key of the lock; a locking bar operable in the radial direction by the locking discs locks the cylinder to the cylinder housing. The method provides the lock cylinder with locking discs without peripheral recesses allowing the opening of the lock; the locking discs are turned with a key member into an opening position defined by the key member; and a joint groove corresponding to the form of the locking bar is machined into the set of locking discs at the position of the locking bar. Each of the locking discs is provided at the right position with a peripheral recess allowing the opening of the lock. The operation can be repeated with other key members for providing the lock mechanism with a desired number of opening combinations usuable in mastered locking systems.

Abstract: A calender comprising a plurality of superimposed hard rolls and a number of soft rolls arranged to load laterally a plurality of these hard rolls. The soft rolls are arranged in pairs formed by two soft rolls opposite each other at both sides of the same hard roll. The distance between the axes of the hard rolls located between a pair of soft rolls is greater than the sum of the radii of these hard rolls.

Abstract: A method for regulating the internal tension of a web roll being wound between two underlying support rolls and an upper rider roll. During the whole winding process the distance between the centers of the support rolls is kept smaller than the sum of the distances from the center of the web roll to the centers of the support rolls. At the beginning, the support rolls are continuously moved farther away from each other and at a later phase of the winding process the supporting rolls are moved towards each other. The distance between the support rolls is preferably regulated so that the sum of the nip pressures provided by the support rolls and the rider roll is substantially constant.

Abstract: A key profile system of a disc cylinder lock is disclosed in which system the appropriateness of a certain key profile for use in a lock is determined by the form of a key receiving opening in the actual locking elements of the lock, that is, the locking discs. The system comprises several different key profiles the form of which can be included within the border line of the basic profile of the used key blank. At least one of the key profiles fits functionally into a lock made for another key profile. The system may also include keys or key blanks with at least two different profiles arranged axially one after the other.

Abstract: A valve suitable for connection to a vacuum sewer system and comprising a flow duct with a resilient wall which acts as a flow duct closing member. Outside the wall with respect to the flow duct there is a closed chamber connectable to suitable pressure sources in order to move the resilient wall by means of pressure between a flow duct closing and a flow duct opening position. In order to improve the closing movement of the valve the resilient wall is provided with a stiffener at the outlet side of the flow duct.

Abstract: A disc cylinder lock comprising a turnable cylinder enclosing a plurality of locking discs, turnable by the key of the lock, and between adjacent locking discs, intermediate discs. The intermediate discs are radially larger than the locking discs and are provided on one side with an axially extending edge portion defining a cup-formed space on one side of the intermediate disc, the opposite side of the disc being its bottom side. In the lock, the axially extending edge portion contacts the bottom side of an adjacent intermediate disc, so that the last mentioned bottom side forms a cover on the cup-formed space, thereby providing a substantially closed space for each locking disc, located between two adjacent intermediate discs. In this space the locking disc can move without being subject to axial load.

Abstract: A device for cutting a web into a plurality of longitudinal sections, comprising slitters, a center drum and supporting arms for rewind rolls formed of adjacent slitted web sections and located at opposite sides of the center drum. The arms are attached to sliding carriages movable along guide beams in a cross-web direction and the slitters are attached to the sliding carriages and move with them when the slitting width is set, so that the slitters and the supporting arms are automatically correctly positioned with respect to each other in a cross-web direction. The supporting arms are journalled at the rolls and at the sliding carriages and are free to move away from the center drum without affecting the position of the sliding carriages which are kept stationary during cutting and rewinding operations.

Abstract: A cylinder lock comprising an outer cylinder enclosing a hollow rotatable inner cylinder which, in turn, encloses a plurality of locking discs turnable with the key of the lock. Between the outer cylinder and the peripheral edges of the locking discs there is a locking bar locking the inner cylinder to the outer cylinder. This bar is movable from a position locking the inner cylinder, in which position the bar is located partly in a groove in the inner wall of the outer cylinder to a position releasing the inner cylinder. In the latter position the locking bar is received in a channel formed jointly by locking bar notches in the peripheral edges of the locking discs when the discs are brought to a certain position. The groove in the inner wall of the outer cylinder is provided with a lateral step, so that a deep groove portion and a shallow groove portion are formed.

Abstract: A disc cylinder lock comprising a number of turnable locking discs, which by turning of the key of the lock are turned from a certain initial position to a position releasing the lock mechanism. In the central part of some of the locking discs, there is an opening comprising two portions between which there are at least two substantially radial steps. One of the portions of the central opening receives the key of the lock while the other, when the key is properly inserted in the lock mechanism, forms at the side of the key a free space with a curved border, into which the key does not move in any of the functional phases of the lock. In front of the last mentioned locking discs, there is at least one other turnable element, for instance another type of locking disc, which has also, in its central part, an opening for the key.