Abstract: A saw blade (10) is supported on a saw blade carriage (14) adapted to be adjusted by an adjusting drive means (18) along a carriage guide means (16) and cooperating with a distance measuring means (26,28,30). A sensor means (34) is disposed in the path of movement of the saw blade (10) and emits signals in response to the position of a front edge portion of the saw blade (10) extending transversely of the carriage guide means (16). The adjusting drive means (18) is controlled by these signals and stopped at a predetermined nominal position of the front edge portion of the saw blade (10). In this manner the saw blade (10) positioning is effected automatically and the positioning accomplished permits a conclusion to be drawn with respect to the diameter of the saw blade (10) so that no separate measurement thereof is required.

Abstract: Two clamping jaws (30, 32) disposed opposite each other and operable by fluid pressure are connected to each other by gearing (38, 40, 50) which guides them symmetrically with respect to a central plane (B). The gearing (38, 40, 50) comprises two racks (38, 40) meshing with a pinion (50) disposed between them and each secured to a respective one of the clamping jaws (30 and 32). The axis (48) of the pinion (50) is adjustable transversely of the central plane (B) to change the location thereof. In this manner any saw blade (10) may be clamped in the area of each individual tooth (12) exactly symmetrically with respect to the central plane thereof.

Abstract: The invention relates to apparatus for machining circular saw blades and more particularly to the transport means for conveying workpieces to the machining stations of the apparatus. In accordance with the invention, the storage capability of the apparatus is accomplished by subdividing the conveying means into a work path leading through the machining stations; a return path leading through a feeding and discharging station; two branch paths wherein an endless conveyor is arranged only along the work path and associated with the branch paths there are shifting means capable of shifting a work piece carriage from the branch path to the return path; and that on the return path, work piece carriages are maintained at smaller distances than those of the endless conveyor whereby the storage capacity of the apparatus is increased. The apparatus is also adjustable to feed a plurality of different saw diameters for machining.

Abstract: A sharpening machine for saws has a mount for a saw blade and a carrier which is adapted to be tilted about an axis of tilt oriented perpendicular to the plane of the saw blade. A support which is supported on the carrier is capable of swivelling relative to the carrier through at least 180.degree. about a swivel axis lying in the plane of the saw blade by a swivelling device and is capable of reciprocating along the swivel axis by a lifting device. A grinding head is supported on the support and carries a plate-shaped or cup-shaped grinding wheel and a grinding motor for driving the grinding wheel. The swivel axis in one operating position of the grinding wheel is contiguous with an active face of the grinding wheel. A second grinding wheel on the grinding head is arranged in offset relationship with respect to the first-mentioned grinding wheel.

Abstract: A method for the repair of alloy-tipped saw blades is disclosed. According to the method, a damaged circular saw blade can be completely repaired at one location. The saw blade is clamped in the machine. Brazing and grinding tools are positioned for repair of the clamped saw blades.

Abstract: A machine for the repair of alloy-tipped saw blades is provided. According to the invention, a damaged circular saw blade can be completely repaired at one location. The saw blade is clamped in the machine. Brazing and grinding tools are positioned for repair of the clamped saw blades.