Abstract: A ferritic alloy comprising in weight %: C: 0.01-0.1; N: 0.001-0.1; O: ?0.2; B: ?0.01; Cr: 9.0-13.0; Al: 2.5-8.0; Si: ?0.5; Mn: ?0.4; Y: ?2.2; Sc+Ce+La: ?0.2; Mo+W: ?4.0; Ti: ?1.7; Zr: ?3.3; Nb: ?3.3; V: ?1.8; Hf+Ta+Th: ?6.5; the balance being Fe and unavoidable impurities, wherein, the amounts of Ti+Zr+Nb+V+Hf+Ta+Th and C, N and O are balanced such that: at ? ? % ? ? Ti + at ? ? % ? ? Zr + at ? ? % ? ? Nb + at ? ? % ? ? V + at ? ? % ? ? Hf + at ? ? % ? ? Ta + at ? ? % ? ? Th - x * at ? ? % ? ? O - at ? ? % ? ? N at ? ? % ? ? C ? 1 wherein x is 0.5 unless the content of Y is more than or equal to 0.01 wt % then x is 0.67.

Abstract: A ferritic alloy comprising in weight %: C: 0.01-0.1; N: 0.001-0.1; O: ?0.2; B: ?0.01; Cr: 9.0-13.0; Al: 2.5-8.0; Si: ?0.5; Mn: ?0.4; Y: ?2.2; Sc+Ce+La: ?0.2; Mo+W: ?4.0; Ti: ?1.7; Zr: ?3.3; Nb: ?3.3; V: ?1.8; Hf+Ta+Th: ?6.5; the balance being Fe and unavoidable impurities, wherein, the amounts of Ti+Zr+Nb+V+Hf+Ta+Th and C, N and O are balanced such that: at ? ? % ? ? Ti + at ? ? % ? ? Zr + at ? ? % ? ? Nb + at ? ? % ? ? V + at ? ? % ? ? Hf + at ? ? % ? ? Ta + at ? ? % ? ? Th - x * at ? ? % ? ? O - at ? ? % ? ? N at ? ? % ? ? C ? 1 wherein x is 0.5 unless the content of Y is more than or equal to 0.01 wt % then x is 0.67.

Abstract: A ferritic alloy comprising in weight %: C: 0.01-0.1; N: 0.001-0.1; O: ?0.2; B: ?0.01; Cr: 9.0-13.0; Al: 2.5-8.0; Si: ?0.5; Mn: ?0.4; Y: ?2.2; Sc+Ce+La: ?0.2; Mo+W: ?4.0; Ti: ?1.7; Zr: ?3.3; Nb: ?3.3; V: ?1.8; Hf+Ta+Th: ?6.5; the balance being Fe and unavoidable impurities, wherein, the amounts of Ti+Zr+Nb+V+Hf+Ta+Th and C, N and O are balanced such that: at ? ? % ? ? Ti + at ? ? % ? ? Zr + at ? ? % ? ? Nb + at ? ? % ? ? V + at ? ? % ? ? Hf + at ? ? % ? ? Ta + at ? ? % ? ? Th - x * at ? ? % ? ? O - at ? ? % ? ? N at ? ? % ? ? C ? 1 wherein x is 0.5 unless the content of Y is more than or equal to 0.01 wt % then x is 0.67.

Abstract: A method performed by a work tools communication system facilitates communication between a tool server and tool controllers connected thereto. The method includes: sending, from the tool server to a first of the tool controllers, a message, including a destination address of and a requested action to be performed by the first tool controller, to control at least one work tool connected to the first tool controller. The method also includes, by the first tool controller: receiving the message based on the destination address; analysing the message to detect the requested action; and controlling the at least one work tool according to the detected requested action. The message includes header and payload parts, including the requested action and details of the requested action, respectively. The payload part is divided into a plurality of data nodes, each data node including a type of data field and a data value field.

Abstract: A method performed by a tool communications network for remote control of power tools includes: determining control data and arranging the control data in a message structure by a tool server. The message structure includes a message header for message transmission and a message body, including at least one data container, for carrying control data. The data container contains at least one individual control data item containing metadata and value data, and is expressed in a binary format. The method also includes: transmitting by the tool server a message based on the message structure including the control data; receiving by a tool controller the message based on the message structure comprising the control data; and storing the control data according to the message structure in a database of a plurality of tool controllers. At least one power tool is connected to at least one tool controller.

Abstract: Disclosed is a system for a work tool communications network (11), comprising a server (10) comprising a memory and operatively coupled to a communication node, the communication node (14) comprising a processor and a memory device and being operatively coupled to a controller (16). The controller (16) comprises a processor and a memory and is adapted to control parameters of a work tool (18). The server (10) is adapted to connect to and register with the communication node. The controller (16) is adapted to connect to and register with the communication node (14), and the communication node (14) is adapted to establish a communication session between the server (10) and the controller (16) controlling the work tool (18).

Abstract: A steam boiler has at least one water and/or steam conveying element and at least one radiation element, which is an un-cooled element, arranged in the flow of hot flue gases, such that it is convectively heated by the flue gases. The radiation element is located at a pre-determined distance from the at least one water and/or steam conveying element, wherein the pre-determined distance is arranged such that the flow of hot flue gases between the radiation element and the water and/or steam conveying element is unhindered, and such that the water and/or steam conveying element is heated by heat radiation from the radiation element.

Abstract: A crankcase scavenged two-stroke internal combustion engine (1) in which a piston ported air passage is arranged between an air inlet (2) and the upper part of a number of transfer ducts (3, 3?). The air inlet is equipped with a restriction valve (4), controlled by at least one engine parameter, for instance the carburetor throttle control. The air inlet extends via at least one connecting duct (6, 6?) to at least one connecting port (7, 7?) in the engine's cylinder wall (12). The connecting port (7, 7?) is arranged so that when the piston is in a top dead center configuration, it is connected with flow paths (9, 9?) embodied in the piston (13).

Abstract: A metallic tube for heating a medium or subject outside thereof or inside it by transfer of heat energy through walls of the tube, in which heat is absorbed or emitted at least to a substantial degree by radiation on one or both of the inner and outer surfaces of the tube, is of a material forming a layer of essentially Al2O3 on the surfaces thereof when heated to at least approximately 750° C. At least one of the external and the internal surface of the tube is coated by one of a metal, metal alloy and metal compound, which after oxidation forms a layer having an emissivity coefficient exceeding 0.7, or by a layer essentially consisting of a metal oxide which has an emissivity coefficient exceeding 0.7.

Abstract: A method of igniting and monitoring a high speed burner with which a fuel/oxygen-mixture exits at high velocity from a burner head, wherein the length of the flame is governed by the exit velocity of the mixture. The invention is characterized by placing an electrically conductive pipe in and concentrical with the burner channel for the fuel mixture, by causing a first end of the pipe to terminate close to the fuel mixture outlet of the burner head, by electrically isolating the pipe and by causing the detection of light of the group ultraviolet light, visible light and/or infrared light to be detected at the other end of the pipe, and by causing a spark to be generated between the first end of the pipe and the surrounding burner head by application of a voltage, in igniting the burner. A burner is also disclosed.

Abstract: A crankcase scavenged two-stroke internal combustion engine (1) in which a piston ported air passage is arranged between an air inlet (2) and the upper part of a number of transfer ducts (3, 3?). The air inlet is equipped with a restriction valve (4), controlled by at least one engine parameter, for instance the carburetor throttle control. The air inlet extends via at least one connecting duct (6, 6?) to at least one connecting port (7, 7?) in the engine's cylinder wall (12). The connecting port (7, 7?) is arranged so that when the piston is in a top dead center configuration, it is connected with flow paths (9, 9?) embodied in the piston (13).

Abstract: Crankcase scavenged two-stroke internal combustion engine (1), in which a piston ported air passage is arranged between an air inlet (2) and the upper part of a number of transfer ducts (3, 3?). The air inlet is equipped with a restriction valve (4), controlled by at least one engine parameter, for instance the carburettor throttle control. The air inlet extends via at least one connecting duct (6, 6?) to at least one connecting port (7, 7?) in the engine's cylinder wall (12).

Abstract: A method of producing an FeCrAl material by gas atomization, wherein in addition to containing iron (Fe), chromium (Cr) and aluminium (Al) the material also contains minor fractions of one or more of the materials molybdenum (Mo), hafnium (Hf), zirconium (Zr), yttrium (Y), nitrogen (N), carbon (C) and oxygen (O). The invention is characterized by causing the smelt to be atomized to contain 0.05-0.50 percent by weight tantalum (Ta) and, at the same time, less than 0.10 percent by weight titanium (Ti). According to one highly preferred embodiment, nitrogen gas (N2) is used as an atomizing gas to which a given amount of oxygen gas (O2) is added, said amount of oxygen gas being such as to cause the atomized powder to contain 0.02-0.10 percent by weight oxygen (O) at the same time as the nitrogen content of the powder is 0.01-0.06 percent by weight. The invention also relates to a high temperature material.

Abstract: The present invention relates to a chain saw having a two-cycle or two-stroke engine. The present invention also relates to a hand-held power tool such as a chain saw, trimmer, or power cutter having a two-cycle or two-stroke engine. The present invention further relates to a method for the construction of a hand-held power tool such as a chain saw, trimmer, or power cutter having a two-cycle or two-stroke engine. The chain saw, trimmer, or power cutter has a housing for containing a two-cycle engine with a crankcase having scavenging ducts.

Abstract: The present invention relates to a chain saw having a two-cycle or two-stroke engine. The present invention also relates to a hand-held power tool such as a chain saw, trimmer, or power cutter having a two-cycle or two-stroke engine. The present invention further relates to a method for the construction of a hand-held power tool such as a chain saw, trimmer, or power cutter having a two-cycle or two-stroke engine. The chain saw, trimmer, or power cutter has a housing for containing a two-cycle engine with a crankcase having scavenging ducts.

Abstract: An electric furnace assembly includes an elongated metallic resistor element, which is supported adjacent to a furnace wall. The resistor element is bent back and forth in its longitudinal direction and is retained by fixed holding member at positions located furthest away from the furnace wall so as to permit a controlled elongation of the resistor element.

Abstract: Cylinder (1) for a two-stroke combustion engine intended for a handheld working tool, preferrably a chain saw. The exhaust port's (3) mouth (17) inside the cylinder as well as the cylinder's transfer ports (5, 6, 7, 8) are arranged symmetrically around a common symmetry plane (9) which follows the cylinder's symmetry axis (10). At the exhaust port's (3) mouth (11) on the outside of the cylinder a fastening plane (12) with fastening holes (13) is embodied for a directly mounted muffler, and the fastening plane (12) is essentially perpendicular to the symmetry plane (9), and the exhaust port is angled sideways in relation to the symmetry plane (9) and its mouth (11) is shifted sideways in relation to the symmetry plane (9).

Abstract: The heat in an electrical heating wire is transferred by way of radiation, or conduction, or convection. Especially in the case of highly rated elements operating in air, where the temperature of the environment is relatively cold, heat transfer by radiation is predominant. In order to achieve as low element temperature as possible at a given surface loading, it is desirable to raise the emissivity coefficient. The surface coating on an element of which the base material is an alloy containing 10-30 weight % Cr, 2-10 weight % Al, maximum 5 weight % of other alloying elements and balance Fe, according to the present invention consists of metal, metal alloy, metal compound or metal oxide with an emissivity coefficient which is higher than that of aluminium oxide. Different metals could be considered for the surface coating, most suited are nickel, cobalt, chromium and iron.

Abstract: A peeling machine for batchwise peeling of vegetable products comprises a container (6) for receiving the vegetable products and peeling means (14) in the container for removing the peel of the vegetable products during relative movement and engagement between the vegetable products and the peeling means. The bottom of the container is at least partially constituted by a number of rotatable peeling rollers (14) positioned in parallel with each other.

Abstract: A method of color marking logs wherein the logs are cut to predetermined lengths in a processing machine and are colored coded with one or a combination of different colors after the cutting has taken place. The colors correspond to predetermined information related to the log such as its length and are applied to an end portion of the log during a free fall after cut-off by means of automatically controlled paint sprayers. A sprayer for color marking the log is preset prior to its actuation by a signal corresponding to the predetermined log length.