Abstract: A power tool, such as for example a bandsaw, incorporates a synthetic material moulding which is box shaped and mounts on the rear an electric motor and its housing, and on the front inside the box an implement drive mechanism such as a pulley in the case of the bandsaw. One side of the moulding mounts a switch actuating assembly substantially flush with the side by way of an OFF actuating plate pivotably received in a recess in the side and an ON actuating plate underneath the OFF actuating plate. In a preferred embodiment the opposite side to the one carrying the switch actuating assembly is adapted to rigidly support a structural metal spine member.

Abstract: A method of and apparatus for transferring gas to liquid, for example, air to liquid in an aeration process. Included is a novel combination air-liquid conduit and a method of making same, a novel jet aerator wherein the outlet section is shortened to include only a converging portion, a novel aeration system utilizing the conduit and jet aerator aforesaid and a novel coupling means for mounting the aerator on the conduit.