Abstract: A combined control and regulating valve (1) having a housing (2) with an inlet (3) and an outlet (4) as well as a partition (5) between said inlet and outlet and having a seat (6) designed for an interaction with a main valve body (7), which is adjustable from outside. To said inlet and said outlet are connected a measuring nipple each (50 and 74, respectively) via a bore (30, 31 and 40, 41 respectively) for the measurement and the control of temperature and/or pressure. One of the measuring nipples is designed as a multiple function nipple (50) having a cut-off-valve permitting tapping and filling of the medium, which is to be controlled/regulated.

Abstract: A press casting machine (2) is provided with a stand (4) and a lower stationary machine table (5), from which bearers (6) project upwards, supporting an upper vertically displaceable machine table (7). A tool half (9 and 10 respectively) is connected to each machine table. These halves form, jointly with inserts, cores, etc., mounted in the halves, a parent tool (8). In order to be able to exchange inserts, to service the machine etc. the tool halves can be disconnected from and reconnected to the respective machine table through an external control, and the entire parent tool can be lifted by means of the upper machine table and be positioned on a tool carriage (60), which can be run out of the press casting machine and onto a main carriage (61), which runs on floor rails (64) and which can support a second parent tool for a quick exchange.

Abstract: A liquid metal (49) poured into a filling chamber (20) is influenced in this chamber by a lower piston (43) and an upper piston (18), which are mounted on a lower machine table (5) and an upper machine table (10) respectively, which tables (5 and 10 respectively) support a lower mold part (24) and an upper mold part (22) respectively. The filling chamber (20) is disposed in or at the lower mold part (24) and receives, as regards the poured-in amount of metal, the lower piston (43), which is adjustable as to its elevational level and can be adjusted to make the amount of metal reach a level somewhat below the mold cavity (51) between the mold parts (22, 24). The lower piston (43) has a larger diameter than the upper piston (18), which, in connection with the filling of the metal (41), is designed to be lowered to a central position in a guiding and feeding sleeve (19) in the upper mold part (22) and is retained in this position by an adjustable holding force.

Abstract: A combined control and regulating valve (1) having a housing (2) with an inlet (3) and an outlet (4) as well as a partition (5) between said inlet and outlet and having a seat (6) designed for an interaction with a main valve body (7), which is adjustable from outside. Said inlet and said outlet are connected to one measuring nipple each (31-39 and 41-49 respectively) for the measurement and the control of temperature and/or pressure. One of the measuring nipples (41-49) is designed as a multiple function nipple (50) having a cutt-off-function designed to interact with a seat (53) in a passage (40), which receives said nipple. In a housing neck (55), which encloses said nipple, are access openings (56) disposed, through which e.g. water can be discharged or filled, when said nipple is in its outer screwing position.

Abstract: A method and apparatus for die casting comprising a stationary lower machine table (5) provided with a stationary lower mold part (24) which cooperates with a vertically moveable upper mold part (22) mounted on an upper machine table (10) and displaceable by hydraulic cylinders (7). The upper machine table (10) and the upper mold part are provided with a filling chamber (20) for receiving a measured quantity of a molten metal which is to be pressed into the mold by an upper piston (18). A lower piston (43) is moved to a variable position relative to the filling chamber, prior to the molten metal filling, and thereafter the upper piston (18) is moved into contact with a top surface of molten metal, without any air-entrapment or with only a minor entrapment of air.

Abstract: A stop valve (1) comprises a housing (2) having a passage (15) for a reversible medium flow, which can be stopped by means of a valve body (20) having an annular portion of a sphere as a sealing surface (25) and a flat end portion (26). The transfer area between said sealing surface (25) and said flat end portion (26) having a very small bending radius (r) and the spherical radius (r1) of said sealing surface (25) is smaller than the turning radius (r2) of said valve body. The valve body (20) cooperates with a sealing ring (36), which is annular and surrounds the passage and has an annular body (37), which via a constriction (38) merges into a seat ring (39). The sealing ring (36) is, in the closing position of the valve, exposed with a smaller portion to that passage section, which houses said valve body, and with a larger portion to the other passage section.

Abstract: A radiator valve having an enclosed pre-adjustment arrangement. In the valve body (10) a plastic insert (36) is disposed, having a coaxial, conical inner surface (38) and a projection (40) provided with a flow opening (34). The flow opening is made with a desired accuracy of size and surface smoothness. The pre-adjustment spindle (12) has a conical member (44), including a shield member (52), the height of which increases continuously. The shield member (52) is adjusted in order to cover up a larger or a smaller portion of the flow opening (34) and is locked by means of a tightening nut (62).

Abstract: A method and apparatus for regulating the flow and the temperature in a central heating installation including a heating circuit having a feed pipe (28), one inlet control and distributing unit (38), a plurality of heating coils (40, 40', 40"), one collecting unit (42) and a return pipe (24) with a circulation pump (25). The unit (38) comprises an inlet chamber (44) with an outlet for the respective coil, valves (46, 46', 46") for temperature control, one mixing chamber (48) with inlet tubes (58, 58', 58") from the inlet chamber (44) and outlet tubes (60, 60', 60") to the respective coils with temperature transmitters (50, 50', 50"). The inlet tubes project into the outlet tubes with intermediate gaps (61). From the return pipe a portion of the return water is recirculated to the mixing chamber (48) and via the gaps (61) into the outlet tubes.

Abstract: This invention regards a control arrangement for heating systems for localities. Heat is given off continuously and the control may take place by changing the temperature (t.sub.w) of the heat carrier medium, thereby sensing the interior temperature (t.sub.i) in the locality and the outdoor temperature (t.sub.u) outside of the locality. A function controller (33) is fed with a known functional relation between the outdoor temperature (t.sub.u) and the temperature (t.sub.w) of the heat carrier medium. The difference between the existing inside temperature (t.sub.i) and the desired inside temperature (t.sub.r) is stated, and the functional relation between the outdoor temperature (t.sub.u) and the temperature of the heat transfer medium (t.sub.w) is divided up into a number of zones, limited from each other dependent upon the difference between the desired inside temperature (t.sub.r) and the inside temperature proper (t.sub.i).