Abstract: A method for protecting stationary constructions, located in water and surrounded by water, against strain caused by a moving ice field in said water. A protective structure is arranged around said stationary construction. Said protective structure has a cross-section considerably greater than the cross-section of said stationary construction and it comprises, at the water surface level and below this level, an outer surface which slopes downwards in a direction against the stationary construction to form an ice breaking surface bending downwards ice, which move against said protective structure.

Abstract: A sliding door arrangement for closing a passage opening in a mainly vertical wall construction and comprising a mainly horizontally movable door unit, a door frame unit attachable to the wall construction, guide and closure devices of said door unit and sealing members of the door and the frame unit. The door unit is moved between two frame members of the frame unit. The door unit comprises a number of door members, of which at least one is movably adjusted in the direction of the passage walk. This movable adjustment allows a shift of the door member against the passage opening, during a final or an initial phase of the door unit motion parallel to the wall construction and guided by the guide devices. The door unit is brought by the shift into a tight contact against sealing members of the frame unit or is disconnected from a contact thereof.

Abstract: In a suction dredger or the like, intended for use in ice-filled waters, there is an overflow tube with a stationary lower portion and a vertically movable upper portion. At the lower end of the stationary tube portion, there is a closure member partly covering the end opening of the tube. Also at the lower end of the movable tube portion, there is a closure member, which substantially covers that portion of the lower end opening of the movable tube portion, which corresponds to the portion of the bottom opening of the stationary tube portion being left uncovered by the closure member of the stationary tube portion.

Abstract: An arrangement for the attachment of a lower portion of a skirt forming an air cushion limiting member in an air cushion vehicle comprises attachment points inside the skirt. These attachment points include an attachment eye or the like, through which a pulling element is drawn. The pulling element has an inner end attached to the lower skirt portion and, following said pulling element, at the opposite side of the attachment eye, an outer end attached to a point where the attachment is operable from the outside of the air cushion vehicle.

Abstract: In a method for determining, by means of an observing and recording measuring device the exact position of a movable member and/or for determining a corrective movement to be performed from a position of the member, a measuring device having a datum position is used. The method includes the steps of determining the position of the movable member and/or a required corrective movement thereof by moving the measuring device past the position of the movable member and determining a new position obtained through the corrective movement or, alternatively, re-determining the first mentioned position of the movable member by moving the measuring device a second time past the movable member in an opposite direction.

Abstract: A vessel with a ballast system including a plurality of ballast tanks provided with pumps for feeding water into the tanks and expelling water therefrom and an air bubbling system including underwater openings and compressors for blowing air through said openings into the water surrounding said vessel. The ballast system and the air bubbling system include a common tube system being alternatively connectable to the ballast tanks, for operating the filling and emptying of the tanks, and to the air bubbling system for conducting air to the underwater openings as described in U.S. Pat. No. 3,580,204.

Abstract: A padlock, which comprises a lock casing and a basically U-shaped shackle slidable therein between a closed and an open position. The shackle has two legs of different length, of which at least one is provided with a locking notch. The padlock also comprises a cylinder lock mechanism, operable by a key, and at least one locking member coacting with a guiding portion of a turnable member of the cylinder lock mechanism for locking the shackle to the lock casing. The locking member is movable dependent on the angular position of the guiding portion of the cylinder lock mechanism between a locking and a releasing position. The releasing position allows the shorter shackle leg to completely slide out from the lock casing. A retaining member is attached to the lock casing in order to keep the cylinder lock mechanism properly fitted in the lock casing. The removal of the retaining member from the lock casing requires turning of the retaining member in relation to the lock casing.

Abstract: A mechanism for machining an object, such as a key blank, to a desired shape at a plurality of successive positions in an axial direction of the object, includes a holder for the object. The holder is axially movable by means of a transfer mechanism with a rotatable shaft. There is a feeder member connected to the rotatable shaft and cooperating with a clutch device axially stationary relatively to the holder. Cooperating guiding surfaces are arranged to transmit to the holder an axial movement during a limited turning of the rotatable shaft. This turning is only a small portion of a full turn of the rotatable shaft. The machining of the object takes place as a continuous guided operation during such a turning of the rotatable shaft which is separate from the turning thereof causing the holder to move axially.

Abstract: An improved method for producing an ice layer suitable for ship model ice tests on a water surface by means of a spraying process is presented. Said improvement comprises the steps of creating a low-temperature atmosphere above said water surface, forming said ice layer by spraying water freezing in said atmosphere, leading said freezing spray onto said water surface, and continuing said spraying process to form thereby the entire or at least substantially the entire ice layer on said water surface.

Abstract: A padlock comprises a lock casing and a basically U-formed shackle slideable therein between a closed and an open position. The padlock has two legs of different length, each provided with a locking notch. The longer leg has a head that is somewhat thicker than the general part of the leg for keeping the shackle engaged in the casing in its open position. There is also a cylinder lock mechanism, operable by a key, and locking members coacting with a guiding portion of a turnable member of the cylinder lock mechanism for locking both legs of the shackle to the lock casing. The locking members are movable dependent on the angular position of the guiding portion of the cylinder lock mechanism between a locking and a releasing position. The releasing position allows the shorter shackle leg to completely slide out from the lock casing.

Abstract: A method for providing a floating structure with self-supporting box-like cabin elements. A deck or the like is prepared for receiving the cabin elements, which are built up with walls and a roof and with an open bottom. Transport units, by which the cabin elements are movable on the deck, are temporarily attached to the cabin elements below and inside their walls.

Abstract: A door lock comprises a bolt and a mechanism for moving the bolt between a protruding locking position and a withdrawn unlocking position. The bolt is provided, in its protruding part, with at least one auxiliary locking element, such as a ball, a pin or the like, movable in a transverse duct in the bolt between a first position, in which it partly extends outside the sides of the bolt, and a second retracted position. In the bolt, there is also an operating member moving in the longitudinal direction of the bolt. This member is arranged to move each auxiliary locking element into its first position, when the bolt reaches its protruding position. Preferably, the bolt is provided with two auxiliary locking elements moving symmetrically with regard to a longitudinal plane of the bolt.

Abstract: A valve comprises a valve housing with a detachable lid, a spindle passing through the lid and clamping means for clamping the lid to the housing. The clamping force of the clamping means acts mainly in the axial direction of the valve spindle. The lid is secured between the valve housing and a clamping member. The clamping force is transmitted to one side of the lid from the clamping member and to the opposite side of the lid from the valve housing via a gasket member. The valve housing comprising guiding means for guiding and locking the clamping member into a locking position. The guiding means requires subsequent movements, one in the axial direction of the spindle and one in the form of a rotational movement around the spindle. The gasket member is elastically compressible by at least 5%, thereby maintaining a continuous sealing contact pressure between the gasket member and the lid as well as between the lid and the clamping member.

Abstract: A valve comprises a valve housing with a detachable cover, at least one sealing member between the housing and the cover and supporting means for compressing the sealing member and for keeping it in place. The sealing member is kept under a compression load between the cover and the valve housing. The sealing member material is elastically compressible at least 5%, preferably at least 10%.

Abstract: A method for the identification of rolls, in particular big paper rolls, by means of a code attached to or marked on the end surface of the roll. The code comprises several characters located side by side and is read by a combined signal optical beam transmitter-receiver, preferably a laser device, scanning a restricted angle in a plane (8). The scanning is adjusted to extend slightly over the end limits of the code at its both ends and the scanning plane is turned until at least one scanning over the enire code (4) is obtained.

Abstract: A door lock comprises a reciprocatingly movable lock bolt and means for locking the lock bolt in a protruding position, for keeping the lock bolt in a withdrawn position and for operating the lock bolt either with a handle or the like or with a key operated mechanism. There is also a lock function selector for selecting a desired type of functional capacity for the lock. The lock function selector has three different setting positions, of which each determines a specific type of functional capacity for the lock. There is a setting member, preferably in a hidden position when the lock is mounted in a door, by means of which setting member the setting of the lock function selector can be restricted in order to further determine the types of function obtainable by the lock.

Abstract: An arrangement for winding a web, in particular a paper web, on a roll core or the like in a two-drum winder comprising two support drums and a rider roll surrounding the web core. The arrangement includes means for supplying, during the final stage of a roll winding process, a new roll core between the newly finished roll and the support drums. There are also a web cutter and means for the transfer of a finished roll away from the support drums. The front end of a transversely cut web is guided to form the beginning of a new roll around a new roll core by guiding means comprising a plurality of guiding units spaced-apart in the circumferential direction of the new roll core. These units include means for creating pneumatic jets urging the web tightly around the new core.

Abstract: The invention relates to an arrangement for obtaining an uninterrupted connection of an electric cable or the like between two elements pivotally hinged to each other, in particular, between a door frame element and a door connected thereto. The arrangement comprises, at the position of the connection, a member arranged around the cable in the form of a separate, turnable and longitudinally flexible protecting element. This element is arranged basically in the longitudinal direction of the door frame element and one end of the element is connected to the door frame element and the other end to an adjacent edge part of the door. There is, for said protecting element, in the door frame and/or in said door edge part, at least one recess. This recess is so arranged that, when the door is closed, the protecting element and said cable are received in this recess.

Abstract: A vessel, in particular a ferry, intended for use in ice-filled waters, is provided with a propeller guard having the form of a rigid grid construction and being arranged to enclose one or several propellers acting in the front part of said vessel and/or below the keel line of said vessel. The width of the guard at its upper edge at the hull of the vessel is at least substantially equal to the greatest width of the guard. At its front end, the guard has an oblique front edge which, in a longitudinal section, is at least to its major part, inclined relative to a horizontal plane at the most 50.degree., preferably at the most 45.degree..

Abstract: A method for punching disc-like lock parts from a metal band or the like and for combining them to form lock mechanism units determining different lock combinations or the like. The punching of the parts to their final form takes place in a series of punching actions carried out by different punching units. Punching of parts having different details is carried out by having the pattern of the series changed for each punching stroke. In a final phase, the punched lock parts are separated from the band and collected in an order determined by a pre-selected combination code.