Abstract: The present invention is an accessory device that hole coring machine, wherein the hole coring machine is utilized to quickly and efficiently core holes in concrete and asphalt. The accessory device comprises a stabilizer assembly that is coupled to a base of the hole coring machine. The stabilizer assembly includes at least one stabilizing frame that is formed to the outside diameter of a drill saw bit of the hole coring machine. The at least one stabilizing frame is coupled to an air compressor that causes the stabilizing frame to move relative to the drill saw bit during operation of the hole coring machine. The at least one stabilizing frame aids in maintaining the shape of the drill saw bit and reduces vibration and binding of the drill saw bit while forming a hole in concrete and/or asphalt.

Abstract: A rock bolting system rock bolting system comprising a frame supporting a movable bolter feed rail, a bolter feed slidable on the bolter feed rail, the bolter feed having a bolt driver for driving a rock bolt into a drilled hole in a rock face, a plate magazine for storing a plurality of bolt plates, and a plate holder for holding a plate to enable the plate to function as a centralizer to centralize the bolt.

Abstract: A pocket hole drilling machine is presented. The pocket hole drilling machine has a cabinet made of a molded unitary monolithic piece. A monolithic top plate is connected to the cabinet with an opening in the middle for an insert plate which is positioned therein. A handle extends above the top plated as does a clamping assembly however actuating mechanics of the device move within the cabinet, thereby improving safety by eliminating pinchpoints. An adjustable fence assembly having cam locks connected thereto is also connected to the top plate. This arrangement provides a low cost, safe and efficient pocket hole drilling machine.

Abstract: An edge grinding unit for machines for working the edges of plates in general and of glass sheets in particular comprising at least at one rim of a plate being worked, a grinding wheel which is accommodated in a carousel element provided with a rotatable cage formed by a plurality of circumferentially distributed rollers. The edge grinding unit further comprising an arm for supporting the grinding wheel which provides, for the grinding wheel, a first oscillation axis and a second oscillation axis which are spaced one another and are substantially perpendicular to the advancement plane of the plate.

Abstract: A hollow chisel mortiser with a rotor for adjusting a working angle of the mortiser includes a base having a recess defined in a rear end of the base. The rotor rotatably abuts and is selectively secured on the rear end of the base. The rotor includes a protrusion extending from the rotor and rotatably received in the recess. A worktable is slidably mounted on the base. A tool support is perpendicularly mounted on the rotor. A drill is movably mounted on the support. The working angle of the drill can be easily adjusted by rotating the rotor.

Abstract: A method and device for making a completely smooth cut in a sandwich panel constructed of a core having two relatively thin and mechanically resistant skin plates adhered thereto on both sides. The disclosed method using the steps of cutting a channel in at least one of the skin plates and cutting the core with another blade through the previously cut channel.