Abstract: A machine for the mechanical working of band saws is provided whose frame carries an appliance for gripping the saw on the sides, a mechanism for the pitch feed of the saw, tooth-setting tools secured on the ends of the arms which are kinematically linked with the machine drive, and a pair of knives for cutting off the saw blade. The knives are located after the tooth-setting tools in the direction of pitch feed. One of these knives is secured on the saw-gripping appliance, while the other one is kinematically linked with one of the arms carrying the tooth-setting tool for joint movement with the latter. The machine provides for manufacturing saws with any required number of teeth.

Abstract: A method of working saw teeth whereby the saw involved is fed to an abrasive wheel for the purpose of grinding the edges of the saw teeth, the surface layer of the edges of each tooth being ground is heated in the course of the grinding process to a temperature approximating to the melting point of the saw material, and the saw is subsequently imparted a pitch-feed movement relative to the abrasive wheel. During the pitch-feed movement each tooth tip heated in the grinding process is bent by bringing the side surface thereof in contact with the shaped surface of a tooth tip supporting element, whereby the teeth of the saw are set, the setting of the saw teeth being performed only in the zone of the tooth tips.

Abstract: A method is disclosed wherein the teeth of a saw are set and, after setting a certain number of teeth and simultaneously with setting the last tooth, the saw blade is cut off and the cutting tool is withdrawn from the cutting zone before the saw is fed along the pitch. The machine includes a frame which carries an appliance for gripping the saw on the sides, a mechanism for the pitch feed of the saw, tooth-setting tools secured on the ends of the arms which are kinematically linked with a machine drive, and a pair of knives for cutting off the saw blade. The knives are located after the tooth-setting tools in the direction of pitch feed. One of these knives is secured on the saw-gripping appliance, while the other one is kinematically linked with one of the arms carrying the tooth-setting tool for joint movement with the latter. The machine provides for manufacturing saws with any required number of teeth.

Abstract: A band saw teeth working machine comprises a framework having mounted thereon: a device for clamping a band saw by the side surfaces thereof, having abutments for the apices of the teeth of the band saw and for the back edge thereof, a mechanism for advancing the band saw stepwise in accordance with its pitch and a tool for working the teeth of the saw. The machine includes an auxiliary device for clamping the band saw by the side surfaces thereof, mounted on the stepwise-advancing mechanism, arranged in front of the band saw clamping device in the direction of the advance of the band saw being worked upon, adjacent to this last-mentioned device. The provision of this auxiliary device enables to operate the same machine for setting and notching the teeth of the band saw.