Abstract: A displacement device for realizing high-precision displacement, in particular for reduction projectors, includes a housing, a movable element which can move relative to the housing, and a moveable drum. The drum is enveloped by flexible elements, with first ends of the flexible elements fixedly attached to the housing and the respective other ends of the flexible elements attached to the movable element on the diametrically opposite side of the drum, whereby the flexible elements are pretensioned.

Abstract: A microscope stage of this invention includes an upper stage, a handle shaft rotatably supported on the upper stage, a pulley rotatably supported on the upper stage in a position different from the handle shaft, a lower stage directly driven and guided with respect to the upper stage and a transmission member for interlocking the handle shaft, pulley and lower stage.

Abstract: An x-ray examination apparatus has a base with at least one fixed part and one carriage that can be vertically shifted in relation to the fixed part. The carriage is provided with a horizontally projecting shaft, to which an apparatus component is mounted and which has a center axis around which the apparatus component can rotate. A pulley with a peripheral surface that is at least partially round is rotationally mounted to the shaft and is firmly connected to the apparatus component. A first pair of wheels is arranged at the fixed part of the base and a connector is provided to connect the pulley to the wheels so that whenever the wheels are respectively simultaneously rotated in different directions, the pulley and thus the apparatus component are vertically shifted and whenever the wheels are rotated in the same direction, the pulley and thus the apparatus component are caused to rotate around the center axis.

Abstract: A ball joint gimbal system which provides for a precise line-of-sight stabilization of a gimballed mirror that rides on a ball and its associated support structure. The mirror is positioned by four braided lines. The brained lines are driven by four servo motor with each servo motor being coupled to one of four capstan shafts. Each of the braided lines is wound around one of the four capstan shafts. The braided lines are positioned by optical shaft encoders. The low inertia of the gimballed mirror and the positioning of the mirror by the braided lines result in an extremely accurate and fast scanning optical pointing system. Inertial gimbal stabilization of the line of sight to a target is by a stabilization algorithm utilizing body rate information from body sensors which are components of the missile for providing autopilot and navigation functions for the missile.

Abstract: A drive, preferably a gate drive with a belt transmission encompassing a drive pulley and an output pulley. According to the invention the drive pulley consists of at least one cylinder with inwardly tapering flanges at its ends. A round belt, rope or similar serves as a drive agent, which is wound a number of times around the cylinder. The return strand of the round belt, rope or similar can be held continuously under tension.

Abstract: A locking mechanism for fixing a carriage at a specific position automatically is provided. This locking mechanism includes a fixing device and a transmitting device. The fixing device is used for securing the carriage at the specific position, and the transmitting device is used for driving the carriage to be secured to the fixing device in a first instance and detaching the carriage from the fixing device in a second instance.

Abstract: A dynamic collapsible and revolving toy, comprising an interior sleeve set and an exterior sleeve set that are installed at the center inside a base, said interior sleeve set involves a winding strip and driven by a piece of extension/retraction driving motor, the exterior sleeve set covers the outside of the interior sleeve set, which innermost sleeve is linked to the innermost sleeve of the interior sleeve set, and is able of extending/retracting functions when driven by the extension/retraction driving motor, on the upper rim of each sleeve of the exterior sleeve set are inserted a decorative article suited to the theme of the toy, to the base of the outermost sleeve is linked a gear which is toothed with and driven by a rotation driving motor, when the user turns on the power switch on one side of the base, the extension/retraction driving motor is started to drive a winding strip to push out the interior and exterior sleeve sets from the base, so they are erected right above the base, then the gear on th

Abstract: A gear assembly with variable speed ratio for a scanner comprises a base fixed on the bottom of the scanner, a first motor and a second motor arranged on the base, a rotary disk, a first gear set and a second gear set. The first motor and the second motor are connected to a power output gear and a driving gear, respectively. The rotary disk is arranged on the base, and has a toothed portion engaged with the driving gear. The first gear set and the second gear set each have a different speed ratio, and are arranged on the rotary disk. The second motor drives the rotary disk to selectively engage the first gear set or the second gear set with the power output gear to select the desired speed ratio.

Abstract: A roller mechanism that uses a differential spool arrangement to convert a small linear motion into a large rolling motion. The simplest embodiment comprises two spools that are rigidly connected together and are preferably of slightly different diameters. The flexible members such as string, tape, sheet, are rolled around the spools in opposite directions and extend from the spools in opposite directions. When tension is applied to the flexible members, a torque is created which acts to turn the spools so as to roll up the flexible member that is wrapped around the spool with the smaller diameter. The result is that a small movement of the flexible members results in large movement of the spools. Various embodiments of this mechanism are ideal for use in dampers, sunshades, toys, and exercise equipment.

Abstract: A trunnion (3) of a toroidal continuously variable transmission comprises a pulley (38) having a pulley groove (30) and a notch (37) crossing the pulley groove (38). The trunnion (3) rotates in synchronism with another trunnion by looping an endless wire around the pulley groove of each trunnion (3) and by engaging a large diameter part of the endless wire with the notch (37). After the trunnion (3) is formed by die forging, a rotary tool (90) is first aligned with a boundary interface (31′A, 31′B) between the pulley groove (30) and notch (37). The tool (90) is then rotated while it is moved forward in the axial direction of the tool (90), and the boundary interface (31′A, 31′B) is cut to a predetermined position.

Abstract: A take-up pulley for a carrier in an image processor has a drum-like section with a boss-like projection extending from one end. In one embodiment, a recess is formed at the other end of the drum-like section for receiving a bearing. A stopper flange is formed at the end of the drum-like section adjacent the boss-like projection. The take-up pulley can be formed by a suitable molding process such as extrusion using the mold adapted to be opened axially. The take-up pulley is fixedly mounted on the driving shaft in the housing of an image processor so that a gap G smaller than a diameter of a drive wire may be formed between the end surface of the drum-like section and an inner wall of the housing. In another embodiment, an annular stopper plate is affixed to the end of the drum section instead of the recess.