IMPROVEMENTS IN AND RELATING TO SAWMILLS AND PARTS THEREFOR

摘要

A circular saw blade (1) has a central attachment (5) suitable for functionally attaching the blade to a driving mechanism, a series of saw teeth (2) at the periphery of the blade, a series of apertures (3) between the teeth and the attachment portion, arranged to substantially reduce the weight and surface area of the blade. The blade is mounted on a shaft (8) proceeding to a first mount (10) (eg a gear box). The shaft is able to swing about pivot point (11) to swing the blade between horizontal (7) and vertical orientations (6). A gas strut (12) is attached to the first mount (10) and to a second mount (13). When the blade is in the horizontal disposition the strut (12) is generally aligned with a straight line (15) passing, through the pivot point (11) and the point that the strut attaches to the second mount (13). When the blade is in the vertical disposition the strut (12) is extended and exerts no, or no significant, swing force for the blade.