A rotary actuator (16) includes a rotor (48) which is disposed in a housing (34) between first and second pole pieces (42 and 44) of a stator (40). The rotor (48) is rotatable relative to the stator (40) between an unactuated position (FIG. 4) and an actuated position (FIG. 5). During rotation of the rotor (48), the axial extent of a first working air gap (66) between the rotor and a first pole piece (44) of the stator (40) remains constant. However, the axial extent of the working air gap (64) ...

A rotating amusement ride having a vertical hollow column carrying a plurality of arms pivoted at one end to the top portion of the column with passenger cars secured to the ends of the arms. Power means rotates the column and swings the passenger cars about a vertical axis and maintains the cars a short distance away from the column. An inner shaft which rotates with the column is provided with a disc on which a plurality of pivoted posts are mounted with a linkage and struts connecting the piv...

A rotary solenoid, particularly for use in electronic teleprinters and the like, especially for attachment perforators, etc., in which most of the metal components may be fabricated in the form of stamped sheet metal structures rather than turned or machined components and which is relatively readily adaptable to automatic fabrication, the stator poles being in the form of stamped sheet metal laminations disposed in respective aligned stacks at opposite ends of an actuating coil and provided wit...

A test fixture is provided with selective movement capability along any one f three mutually orthogonal axes. An adjustable support means is configured to support any of a plurality of devices to be tested on the fixture such as to position the center of gravity above the intersection of the axis of movement. A lock mechanism prevents movement of the support fixture about nonselected axes. An interlock is provided for the lock mechanism to prevent movement along the undesired ones of the mutuall...

A multiple cable electrical connector comprises a metallic body having a base portion and at least three spaced-apart legs extending upwardly from the base portion. The legs have axial recesses therein for receiving the ends of electrical conductor cables. Each leg has a lateral threaded bore intersecting the recess at substantially right angles and a setscrew is threadedly received in each bore. Each setscrew has an inner end received in the recess and a saddle clamp is mounted on the inner end...

A pair of appliances, one of which is attachable under each foot of a person, so that the wearer can bounce vertically while walking or jogging, each appliance including a pair of vertically spaced apart platforms shaped like a foot, a plurality of compression coil springs between the platforms, and an adjustable toe strap and heel strap secured to the top platform for securement to the foot.

A scanner has a rotor, and a stator disposed in the outside of the rotor. The rotor includes a shaft, and a permanent magnet mounted on the outer circumferential side of the shaft. The stator includes a casing, a yoke held in the inner circumferential side of the casing, and coils disposed in the inner circumferential side of the yoke. The permanent magnet of the rotor has radially depressed grooves formed in its outer circumferential portion. The torque constant of the scanner is circumferentia...

An electromagnetic oscillating system is disclosed and includes an electromagnet with at least two poles. Each of the poles carry at least one electric excitation winding for connection to an alternating electric field. A rotor is disposed between the poles and includes a shaft that is rotatably disposed within the bore of the electromagnetic windings. The shaft is hollow and has a torsional spring disposed therein. One end of the torsional spring is rigidly attached within the shaft, while the ...

An athletic shoe exerciser having means for roller assisted human locomotion. The exerciser includes means for retaining the rollers when not in use inside the lower portion of the exerciser. The exerciser also includes removable soles for various athletic applications.

A magnetic actuator for the direct generation of a rotary actuation of a shaft (1) with currentless stop position fixation is proposed, which comprises at least one permanent magnetic anchor (2) configured as an annular segment and torque-proof connected to the shaft (1) and at least two electromagnet systems (7, 8), which each have a coil (5, 6) wound around a ferromagnetic core (3, 4), wherein the at least two electromagnet systems (7, 8) and the at least one permanent magnetic anchor (2) are ...