Abstract: The present invention relates to a saw blade for a sawing machine, said sawing machine (10) being arranged for cutting micro trenches by means of said saw blade (1), wherein said micro trenches are adapted for receiving at least one duct/cable; wherein said saw blade comprises mechanical coding means (2) selected from the group consisting of holes, depressions and protrusions arranged on said saw blade (1); and said holes, depressions and protrusions being coding elements for forming at least one code symbol (4) representing a unique identity (ID) for said saw blade.

Abstract: A trimmer that is operable to cut at least one sheet of paper includes a base configured to support the at least one sheet, a rail extending across at least a portion of the base, and a cutting assembly having a carriage slidably coupled to the rail and a blade positioned on the carriage. The trimmer also includes a blade opposing member coupled to the base adjacent to the rail and an indicator operable to display a usable life status of at least one of the blade and the blade opposing member.

Abstract: In an image recording apparatus, a record medium passage information generation unit detects a sheet passage state of a record medium after the continuous record media is cut. A control unit determines the state of a cutting device according to the passage time information between cut record media obtained from the sheet passage state of the cut record medium detected by the record medium passage information generation unit and predetermined time information.

Abstract: In some aspects of the invention, tool components for processing of plate-like workpieces, the tool component include an end face adjoined by a tool region provided for regrinding, the tool region being configured to undergo regrinding as a result of wear; and at least one identification mark located on the tool component to indicate the amount of shortening of the tool region as a result of regrinding.

Abstract: A cutting implement with blades that can be replaced or interchanged without using tools. The cutting implement has shock absorbing handles and may also have at least one bumper to reduce the forces transmitted to the user's hands and arms. The cutting implement may be a saw, pruners, lopper, grass shears, hedge shears, or garden shears.

Abstract: The invention relates to a cutter knife (8), a cutter head disk (1) and a system including the inventive cutter head disk and the inventive knife, wherein the cutter knife includes a longitudinal bore enabling only one cutter knife to be arranged on the cutter head disk, the longitudinal bore thereof being compatible with the pin. The scaling on the longitudinal bore makes it possible to verify the position of the cutter knife in relation to the cutter head disk.

Abstract: Temperature or wear indicating device for material-working tools, in particular pipe-working tools, furthermore in particular saw blades, wherein the temperature or wear indicating device has at least one temperature or wear indicator, the temperature or wear indicator being at least partially produced from an indicator material that changes one of its visual properties, in particular its colour, permanently when a predetermined limit temperature is exceeded.

Abstract: An apparatus for estimating a lifetime of a cutter for cutting a sheet comprising: a detector for detecting a value of a parameter representing a cutting resistance during sheet cutting; a comparator for comparing the detected value of the parameter with a predetermined reference value; and an output element for outputting a result based on the comparison.

Abstract: The present invention provides a web perforating apparatus which includes a system for detecting and indicating when a blade in the apparatus is broken, dull or otherwise not perforating the web. The apparatus is typically used with rewinders or other similar machines that produce perforated sheets of products, such as paper, using sets of stationary anvil blades and rotating perforating blades. The apparatus comprises at least one anvil including a blade holder and an anvil blade which is positioned within the blade holder. The blade holder is formed of an insulating material for electrically isolating the anvil blade from the machine frame of the rewinder. An electrical conductor is coupled to the anvil blade for supplying an electric current to the anvil blade from a current source. The apparatus also includes at least one grounded perforating blade for moving relative to the anvil blade and cooperating with the anvil blade to perforate the web at predetermined points along its length.

Abstract: The electric haircutting machine includes an electrical drive motor, cutting blades driven by the drive motor, a device (22) for oiling the cutting blades and a device (20) for detecting an oil deficiency of the oil lubricating the cutting blades. The device (22) for oiling the cutting blades is connected with and responsive to the device (20) for detecting the oil deficiency, whereby the device for oiling the cutting blades is automatically activated to oil the cutting blades when the oil deficiency is detected. The device for detecting the oil deficiency detects whether or not motor current consumption, cutting blade vibration noise, haircutting machine sound level, cutting blade temperature, force acting on one of the cutting blades or drive motor rotation speed exceeds a corresponding predetermined threshold or not in order to establish the presence or absence of the oil deficiency.