Abstract: In an apparatus for precisely moving a table, rectilinear drive systems for both X- and Y-axes are fixed to a support frame, a movable stage is constructed so as to have its motion in the direction of one of these axes constrained by the motion of the rectilinear drive system for the one axis and to have its motion in the direction of the other axis constrained by the rectilinear motion of the rectilinear drive system for the other axis, and means for coupling the rectilinear drive system for at least one of the axes and the movable stage so as to have a backlash.

Abstract: A stationary base includes a planar surface and a bore having an axis lying in a plane parallel to the planar surface. A slide element having a planar surface slidably disposed against the planar surface of the base, is attached to a reciprocally movable shuttle slidably disposed within the bore.

Abstract: A precision drive assembly for the table (b 10) of a machine tool incorporates a screw (12) and floating ball nut (14). The nut is supported by a pair of rods (18,20) which, in turn, are connected to a bracket (26) mounted on the table. The nut is prevented from rotating about its axis by a torque arm (38) extending from the side of the nut and anchored to a bracket (52) attached to the table. Because of this arrangement the nut may move sideways or vertically without substantially altering its linear position.

Abstract: In a motor support having a slidable carriage on which a motor with a pulley, carrying a belt connected to a pulley on a piece of machinery, is mounted, springs engage the carriage to provide a spring loading for the carriage and a fluid pressure arrangement is provided for moving the carriage initially to tighten the belt and then to compress the springs to the point that the force exerted by the springs on the carriage will be in equilibrium with the tension in the belt between the pulleys with such state of equilibrium being maintained solely by further compression of the springs under belt induced movement of the carriage as the load on the machinery may be increased.

Abstract: An injection molding installation includes a box-like mounting base 1 on which are disposed a molding press 2 and a pressure injection apparatus 3. The press 2 includes fixed opposite end plates 4 and 7 mounted directly on the base 1 and an intermediate movable plate 5 slidably bearing on the base via an adaptor wedge A. The injection apparatus includes a motor driven rotary screw conveyor 18 and a plastics material feed funnel 19, and is removably mounted on the base 1 via an interchangeable support rail 22 clamped by internal cross bars 25 to the base or to intermediate spacer inserts 26 mounted thereon. The use of the adaptor wedge and interchangeable support rails enables the accommodation and mounting of molding presses and injection apparatuses having different sizes and configurations on a common and thus standardized mounting base.

Abstract: A motor support has a carriage movably mounted by means of gliders, which are cross-sectionally square elongated tubes, that slidably encompass parallel elongated fixed rails on a stationary base bed with plastic or metal bearing sleeves press fitted in the end portions of the glider tubes to bearingly support them on the rails and transfer the motor load on the glider tubes to the rails in a friction free manner with a reservoir of a viscous lubricant within the center portions of the glider tubes.

Abstract: A motor mount having a slidable carriage bodily invertable by rotating 180.degree. on its longitudinal center line, and having stud-receiving portal openings so arranged and situated in the carriage upper and lower cross-members or surface plates such that with studs therethrough securing the motor to the carriage with the carriage in a certain face upward position, the motor is in an attitude necessarily twisted only to, for instance, the left, and is twisted only to the right with the carriage in a position inverted from the mentioned certain position, the studs utilizing the same portal openings in each of the two positions of the carriage.