Abstract: A circular saw including a frame, a drive means mounted to the frame coupled to a planar saw blade for rotation about a drive axis within a cutting plane and a base pivotably mounted to the frame about a first axis substantially parallel to the cutting plane and a second axis which is generally substantially parallel to the drive axis. In one aspect, the relative pivotal movement of the frame about the first axis is determined by a trim adjuster including disengageable position locator which is operable to provide a plurality of predetermined discrete engaged positions and a locking means for locking the position of the frame relative to the base over a continuous range of settings. The invention also provides a mounting assembly including a course adjustment means and a fine adjustment means to determine the pivotal movement of the frame about the second axis relative to the base.

Abstract: A method of plant gene transfer is provided which includes microprojectile bombardment using DNA directly isolated from a donor plant. Also provided are transgenic plants, cells and tissues thereof and progeny plants derived therefrom, the genomes of which have significant introgressions of the donor plant genome integrated therein.

Abstract: A clamping device comprising a support structure (1) carrying a first jaw (3) which is fixed relative to the support structure and a movable jaw (6) capable of moving towards the fixed jaw to effect clamping. The movable jaw is operated by a lever (10) which engages an advancing means wherein said lever incorporates a locking means to secure the movable jaw at any given position and applied force.

Abstract: A work table for a saw includes a pair of parallel spaced apart horizontally extending guide channels, each guide channel having a vertical web and upper and lower horizontal flanges, the open sides of the channels facing one another; a saw support plate having two pairs of runners for supporting the saw support plate, one pair of runners at one end of the plate and projecting outwardly from the sides of the plate and the other pair of runners at the other end of the plate and projecting outwardly from the sides of the plate. The runners are received within the channels to support the saw support plate in a horizontal plane and the saw support plate is movable in a horizontal plane. The guide channels are provided with apertures in their upper flanges through which the runners may pass, whereby a pair of runners may be lifted from the channels to rotate the saw support in a vertical plane to invert the saw plate and then the runners may be reengaged with the channels.

Abstract: A work table for a saw includes, a base member supporting elongated guide channels at an elevated position relative to the base member, a saw mounting plate slidably supported in the guide channels, the plate having a rectangular opening over which the base plate or shoe of a commercially available portable power saw is secured, a work supporting plate capable of being removably secured in alternative positions either below the saw supporting plate in which the table operates in the docking saw mode, or above the saw supporting plate in which the table operates in the bench saw mode, the work supporting plate having stops by means of which the saw supporting plate is secured in position when the work table is operating in the bench saw mode. The work supporting plate is formed with slots for receiving the blade of the saw in both modes of operation and for receiving mitre guages and work stops.