Abstract: FIG. 2 shows a jigsaw in which pendulum motion in imparted on the blade (24) (see FIG. 1) by a bell crank lever (28) mounting a support wheel (26). The lever (28) is actuated by pin (34) passing through adjustment shaft (36). The pin (34) is actuated by fork lever (42) journalled around circular cam surface (48) and pivoted on axis (44). Cam surface (48) is eccentrically mounted on gear shaft axis (10). Rotational adjustment of shaft (36), which changes amplitude of reciprocation of pin (34) responsive to fork lever cam surface (54) is effected by pin (60) passing through shaft (36) and pivotally mounted in slide switch (70). Arrangement allows for compact design of saw.

Abstract: A hand-held power file has an abrasive belt trained around spaced apart drive and idler pulleys. The drive pulley is located in a chamber and mounted upon an armature shaft of an electric motor. Also mounted upon the armature shaft is a fan that, in use, creates an air flow through the chamber to remove dust debris from the belt. The abrasive belt extends through an opening at the front of the tool's housing and which also serves as an inlet for the air flow. A bag, for receiving dust entrained in the air flow, is supported by outer and inner supports and fits over an outlet nozzle extending from the chamber.

Abstract: A hand-held powered file has an arm assembly carrying a pulley around which passes an abrasive belt. The arm assembly is urged into a position tensioning the belt by a spring. A control knob has a cam track which cooperates with a follower to relieve the tension exerted on the belt by the spring by moving the assembly rearwardly against the spring.