Abstract: An exercise machine which is capable of having its lift, roll, or pitch adjusted with respect to a base so as to provide a plurality of positions of the exercise machine with respect to the base. The exercise machine generally includes a base and an exercise machine movably connected to the base. The exercise machine may include a track, a carriage slidably connected to the track, and a biasing member attached to the carriage to apply a resistive force to the carriage. A plurality of actuators may be connected between the base and the exercise machine. The plurality of actuators may be utilized to adjust a pitch angle or a roll angle of the exercise machine with respect to the base. The plurality of actuators may also be utilized to lift or lower the exercise machine at a constant angle of pitch and/or roll inclination.

Abstract: A hand-held battery powered tool used for tip shaping and reshaping a tip on a cue stick used for playing pool, billiards, snooker, etc. The tip is shaped by a mounting a rotating concave abrasive adapter that is powered in a hand-held housing that allows a user to center the tip directly into the center of the concave abrasive attachment for precise shaping accuracy in seconds. The abrasiveness of the attachment is equal to 80 grit sand paper, although grits from 60 to 120 grit may also be used. The size of the opening at the front end of the housing also allows a user to angle the cue to shape the side walls of the tip to further correct the curvature of the tip. Finally, a burnisher is also provided at the back of the housing to put a final finish on the tip.

Abstract: A ventilator device (9A) is provided at the side frame (36, 37) of a door (35), especially at the top door standard (37), and comprises a box structure (42) defining a through-conduit for ventilating air, and closed at this ends e.g. by caps (15). The box structure is preferably of L-shaped cross-section so providing an abutment surface (43) for the door. An air-flow control (21, 22) can be provided.