Abstract: A faucet handle comprising two valve stem cavities. A first valve stem cavity is different from second valve stem cavity in at least one characteristic of size, shape, or orientation to allow a single faucet handle to be used with different valve stems for different types of applications. A first valve stem cavity may be configured to receive a valve stem in a substantially vertical orientation as may be commonly used with a lavatory faucet application and a second valve stem cavity may be configured to receive a valve stem in an angled orientation as may be commonly used with a tub or shower faucet application. Any combination of differing characteristics may be used for the first and second valve cavities to accommodate different valve stem characteristics.

Abstract: A system for pressurizing a hub having a bearing chamber formed from an air-tight sealing arrangement located on each end of a hub to form a closed air system in the interior of the hub or in combination with a second hub. The closed air system fluidly coupled to a pressurized air tank for receiving pressurized air. A pressure gauge provides a visual indication of the air pressure in the closed air system whereby a breached seal condition within the hub can be detected.

Abstract: An adjustable handle assembly for adjusting a winch or jack is described. The handle assembly may include a crank bar a slide bracket and a grip. The crank bar may include an attachment aperture and adjustment aperture, wherein the attachment aperture may be attachable to a shaft of a winch or jack. The slide bracket may include at least one slot, such as a pair of slots, and a grip aperture, wherein the slide bracket may be capable of engagement the said crank bar forming an overall length of the handle assembly. The grip may be attachable to the grip aperture. There may be at least one fastener capable of engagement with the adjustment aperture and either of the first slot or the second slot. The crank bar may be adjustable along a length of the either the first slot or the second slot.

Abstract: A stroke adjusting attachment for bicycles or the like enables selective changing of the diameter of the orbit which is traveled by a foot pedal to adapt a particular bicycle to persons having different leg lengths or who may have physical impairments which limit foot movement. The pedal is fastened to the attachment rather than being directly secured to a crank arm of the bicycle in the conventional manner. A track member is secured to the bicycle crank arm and the pedal is fastened to a slider which is travelable to any of a plurality of different locations along the track member. Blades extend from the track member adjacent to opposite surfaces of the crank arm thereby maintaining the attachment in a fixed orientation relative to the crank arm. A particular attachment of this form can be fitted onto a variety of crank arms of different sizes and shapes.

Abstract: The invention concerns a device for actuating a gearbox, in particular controllable by pulse control, the device comprising a housing and a lever mounted oscillating in the housing, and the lever being selectively activated via a knob movable along a first direction between two extreme transitory positions located on either side of a neutral position. The lever is slidably mounted relative to a housing along a second direction substantially perpendicular to the first direction, and the lever selectively adopts an active position wherein it projects outside the housing, and an inactive position wherein it is retracted inside the housing.

Abstract: An adjustable gearshift assembly (10, 130) for connecting by a bracket (16) to a transmission of a motor vehicle, providing a shifter knob (12, 132) movable to a selected position relative to an elongate member (14, 144). The shifter knob (12, 132) defines an elongate inner recess (26, 146) slidably received on the elongate member (14, 144). A holder connects to the shifter knob (12, 132) to fix the shifter knob (12, 132) in a selected position. The holder selectively releases to allow the shifter knob (12, 132) to be moved to a selected second position. The holder of the first embodiment includes a ball (92) which communicates through a port (90) between one of a plurality of seats in the elongate member (14) and a slot (80) in the actuator (70). The second embodiment provides a spring plunger (158) that maintains the position of the shifter knob (132) relative to the elongate member (144). A method of selectively positioning a gearshift is disclosed.

Abstract: A tension applying device including a housing in which are mounted a primary shaft, a main shaft, a pinion shaft, and a load-member sheave shaft. A ratchet handle is associated with the primary shaft for imparting rotation thereto when pumped by a user. Rotation of the primary shaft causes rotation of the main shaft which, in turn, is imparted to the pinion shaft and to a load-member sheave mounted on the load-chain sheave shaft. Rotation of the load-member sheave then applies tension to the load member which, in turn, is connected to a desired application. The tension applying device further includes a plurality of drive mechanisms for achieving different mechanical advantages between the ratchet handle and the load-member sheave, thereby allowing a desired input force to attain a desired output force. Further, the load on the tension member may be used for automatically switching between the plurality of drive mechanisms and for a load limit lock-up.

Abstract: A winch handle for a winch has an extendable arm with an extended position and a retracted position. The retracted position of said extendable arm being equal to or within the diameter of the winch. In its retracted position, the extendable arm is shaped in a fashion that does not interfere with the operation of the winch while the handle is not needed. The extended position of the extendable arm is longer than the diameter of the standard winch and is useful for turning the winch. The winch handle may also have a grip.

Abstract: The invention is a floated gimbal instrument platform that provides a stable optical path for optical instruments. The instrument platform has an outer vessel with a transparent viewing port, an inner vessel also with a transparent viewing port, a transparent suspending fluid filling the outer vessel and in which the inner vessel floats in neutral buoyancy, an optical instrument secured inside the inner vessel, spacing studs which centrally position the inner vessel within the outer vessel, and jets which align the second viewing port with the first viewing port, the jets being used to rotate the inner vessel in the suspending fluid. Any misalignment between the viewing ports can be compensated by rotating the inner vessel and any translational forces applied to the platform is dampened by the fluid, thereby eliminating jitter.

Abstract: A jack extension handle assembly that includes first and second elongated segments or extensions connectable together to provide a stable, extended jack handle. At the end of its solid rod-shaped body, one handle extension includes a tapered plug connector. A tapered socket connector at the end of the solid, rod-shaped body of the other handle extension mates with the plug connector during assembly of the handle. The plug and socket taperings account for forging tolerances so as to ensure a proper force-transmitting engagement between the handle extensions. The handle assembly also includes a retainer clip which externally mounts on the two handle extensions to prevent inadvertent separation of the handle extensions during use.

Abstract: A two piece hand brake release handle for a railway car hand brake mechanism having a relatively long lever one end of which is rotably fitted onto a rotatable brake release post extending from the hand brake mechanism, such that manual rotation thereof will not cause rotation of the brake release post, and a relatively short lever arm tightly fitted onto the brake release post such that rotation thereof will cause rotation of the brake release post, with the relatively short lever arm having an arm engaging flange extending transversely to receive and engage the relatively long lever arm such that manual rotation of the long lever arm in a given rotational direction will cause the long lever arm to engage the flange so that continued rotational movement of the long lever arm in the same rotational direction will cause rotational movement of the short lever arm, and accordingly, rotational movement of the brake release post as necessary to effect a brake release.

Abstract: This invention is directed to a door latch having an auxiliary bolt which activates the latch bolt, and the use of a latch to confine small children in the home. The auxiliary bolt has a hinged beveled end which pivots when the door is opened but is fixed when the door is closed to activate the latch. The latch is placed five feet above the floor to prevent a small child from opening the door. The latch has a guard plate below the door handle to prevent a small child from opening the latch with a stick. The latch can be mounted on any side of any door.

Abstract: A handle structure for a dual-bearing reel, which is rotatably mounted on the reel unit of a dual-bearing reel and is attached to the distal end of a handle shaft provided with a drag mechanism, includes a seat plate, a fixing component for fixing the seat plate, and a handle unit. The seat plate has a periphery and is non-rotatably stopped at the distal end of the handle shaft. The fixing component is provided to the distal end of the handle shaft and fixes the seat plate such that it cannot move in the axial direction with respect to the handle shaft. The handle unit is non-rotatably stopped at the seat plate. The handle unit has a surface adjacent the reel unit and includes a housing component for housing and covering the distal end of the handle shaft.

Abstract: A dual leverage reel of the type used for fishing is constructed so as to have an effective lever arm of adjustable length. The reel employs a crank arm that includes a pair of detent recesses, one of which is located at a distance from the crank arm axis, and the other which is located on or closer to the crank arm axis. A crank arm extension is rotatably coupled to the crank arm at a crank arm extension axis that is parallel to the crank arm axis. The crank arm extension axis passes through the crank arm equidistant from both of the detent recesses. The crank arm extension axis divides the crank arm extension into a longer section having a free end and a shorter section having a latchable end. A retractable detent pin is mounted on the shorter section of the crank arm extension at the latachable end thereof. The retractable detent pin is located at the same distance from the crank arm extension axis as the distance between each of the detent recesses and the crank arm extension axis.

Abstract: A triaxial gyroscopic stabilizer for a movie or television camera has a camera in a cardan suspension unit, two three-stage gyroscopes, controlled linkages for adjusting course, banking and pitch, booster-converters, a set of accelerometers, a pitch angle sensor, an integrator, a system shut-off unit, a memory unit, low frequency filters, two computing units, a summator and course and pitch control levers. The cardan suspension unit has an external frame, a middle frame and a platform; the outer frame has the form of a half-fork bracket with an axis of rotation aligned along the course axis; the middle frame has the form of a fork bracket with an axis of rotation aligned along the course axis; the middle frame has the form of a fork bracket with an axis of rotation aligned along the axis of pitch. The first of the two three-stage gyroscopes is mounted on the platform, while the second is mounted on the middle frame.

Abstract: A crank handle (40) which is used in a roll-up flexible cover assembly (64) for an open container, such as a truck (68), includes a longitudinal tube (42) and a rotatable tube (44). The rotatable tube (44) has a longitudinal portion (46) being telescopically disposed in the longitudinal tube (42). The rotatable tube (44) is adjustable among a stored location, an adjusting position, and a working location. The crank handle (40) is extended at the working location, so that the operator can stand away from the side of the truck (68) and easily operate the crank handle (40). The crank handle (40) is retracted to the stored location, preferably on the side of the truck (68). The rotatable tube (44) of the crank handle (40) is turned to a desired direction at the adjusting position so that the crank handle (40) can be vertically stored in a desire location.

Abstract: A free gyro for use with a missile's seeker which allows the seeker to tr the target. The free gyro includes a support structure having a pair of roll axis forks which support a pitch gimbal and allow for rotational movement of the pitch gimbal about a pitch axis. Attached to the pitch gimbal is an outer gimbal support structure which includes a U shaped support member having a pair of support posts which support an outer gimbal ring and allow for rotational movement of the outer gimbal ring about the pitch axis. The outer gimbal ring supports and provides for rotational movement of an inner gimbal ring about an inner gimbal axis which is perpendicular to the pitch axis. The inner gimbal ring supports the free gyro assembly and allows the free gyro assembly to spin about a roll axis to stabilize the free gyro assembly. The free gyro assembly includes the optical system for the missile's seeker or tracking device and the support structure for the optical system.

Abstract: There is provided an improved hand throw device of an electric motor driven switch machine having a ratchet mechanism that permits torque to be applied to the hand throw device in either a clockwise or counter-clockwise direction as desired by an operator. The ratchet mechanism is a self contained module that can be easily installed to either side of the switch machine. The ratchet mechanism also permits the operator to assume a favorable position for application of force to the hand throw device with minimum stress and strain to his or her body. In addition, the ratchet mechanism has a gear system that provides a 2 to 1 mechanical advantage so that less torque is required for movement of the hand throw device.

Abstract: A lever mechanism for the insertion and removal of a module in a housing includes two levers the proximal ends of which are pivotally mounted to the module at spaced locations on the module. The distal ends of the levers are disposed in confronting relationship when the levers are longitudinally aligned. A leaf spring is longitudinally slidably mounted to the levers including sliding attachment to the levers at their distal ends. The leaf spring is sufficiently stiff to maintain spatial alignment of the distal ends of the levers during angular movement. Arcuate sectors branching from the levers adjacent their distal ends overlap and provide handles for manually operating the levers. Latches correspondingly positioned at the proximal ends of the levers cooperate with catches in the opening or slot in the housing in which the module is inserted to provide the final insertion or removal forces for insertion and removal of the module with respect to the housing.

Abstract: An adjustment crank is mountable to the underside of a table top by a bracket in which it is both rotatable and translatable. The crank includes a tube which carries internal splines. An adjustment shaft extends into the tube and carries mating splines. The crank is translatable between an adjustment position wherein the two sets of splines engage and a stowage position wherein the splines are disengaged.

Abstract: A roll-up assembly for covering or uncovering an open container, such as a truck, includes a roll tube transversely extending over the container, a flexible cover being rolling about the roll tube whereby one end of the flexible cover is attached to the roll tube, a cross bar transversely extending over the container whereby the other end of the flexible cover interconnects to the cross bar, a flexible arm being integral with each end of cross bar whereby the flexible arm has a pivot point mounted on the side walls of the container, a pulley being disposed on the side walls of the container, a spool being connected to each end of the roll tube, a cable whereby one end of the cable is attached to the spool and the other end of the cable is attached to tension device for adjusting tension of the cable whereby the cable is looped around the pulley whereby the tension device is disposed on the side walls of the container, and a rotating device interconnected to one end of the roll tube rotating the roll tube so t

Abstract: A multi-freedom electric motor has a broad operational range and a wide space for accommodating an article. The electric motor includes a spherical rotor, a plurality of magnets disposed on an outer surface of the rotor with polarities of the respective adjacent magnetic poles being different from one another, a stator provided along the outer surface of the rotor, and a plurality of magnets opposed to the magnets disposed on an inner surface of the stator. The rotor is supported by a spherical bearing provided on the stator. Either the magnets on the rotor or the magnets on the stator are electromagnets. Electric current are supplied to the electromagnets as controlled by a controller. The multi-freedom electric motor can be employed in a space stabilizer for maintaining the spherical attitude of an article, a control moment gyro for performing an attitude control in space, and an agitating apparatus.

Abstract: A caging system for a magnetized rotor of a gyro. A capacitive detector dcts amounts of linear deflection of the rotor, from an upright position, over time. A computer calculates the linear deflection velocity of the rotor. A power supply sends an amount of current to an electromagnetic coil dependent on the amount of linear deflection velocity of the rotor. An electromagnetic field from the electromagnetic coil moves the rotor to an upright position.

Abstract: An improved leverage bar for use on a load binder handle or in the opening of a ratcheting binder comprising a bar having a latch assembly on a first end for engaging the load binder. The latch assembly comprises a generally U-shaped wall member with a latch member and a fulcrum member interposed therebetween. A second end of the bar comprises a rod assembly for engaging the opening of a ratcheting binder. The rod assembly comprises a first cylindrical section secured to a second cylindrical section which is smaller in diameter to the first cylindrical section and an conical end cap member secured to the second cylindrical section. A method for operating a ratcheting binder and a load binder, all such as those installed on a flat-bed trailer.

Abstract: A multi-freedom electric motor has a broad operational range and a wide space for accommodating an article. The electric motor includes a spherical rotor, a plurality of magnets disposed on an outer surface of the rotor with polarities of the respective adjacent magnetic poles being different from one another, a stator provided along the outer surface of the rotor, and a plurality of magnets opposed to the magnets disposed on an inner surface of the stator. The rotor is supported by a spherical bearing provided on the stator. Either the magnets on the rotor or the magnets on the stator are electromagnets. Electric current are supplied to the electromagnets as controlled by a controller. The multi-freedom electric motor can be employed in a space stabilizer for maintaining the spherical attitude of an article, a control moment gyro for performing an attitude control in space, and an agitating apparatus.

Abstract: A control moment gyroscope for providing directional control in a spacecraft. The control moment gyroscope has a rotor which is electrostatically or magnetically supported within a gimbal housing so as not to touch any of the interior surfaces of the housing. The housing is mounted on a gimbal support which in turn is mounted on the spacecraft. Connected to the gimbal housing is a torque motor which rotates the housing around a gimbal axis. In order to induce a direction changing torque on the spacecraft, the rotor is first spun about its rotor axis. A torque is then induced on the rotor about the output axis. This induced torque will cause the rotor to precess about the gimbal axis which the torque motor follow. The torque induced around the output axis is transferred directly to the spacecraft.

Abstract: A lifting jack for automobiles has an extension arm with a particular fastener which may be used to connect longitudinally elongated tubular sections. A series of interlocking sections are provided which need not be identical (e.g. in particular having different ends). The sections are linked in a positive lock (snap fit) by a fastener having one or more resilient legs biasing a lug.

Abstract: A two degree of freedom gyroscope having a drive motor (20), with a permanent magnet rotor (22), which comprises a sensing coil (32) looped around the permanent magnet rotor (22) and disposed in a plane orthogonal to a null spin axis, a torquer coil looped around the permanent magnet rotor (22) and disposed in a plane orthogonal to the null spin axis, and torque drive elements (62, 64, 65) responsive to the signal induced in the sensing coil (32) when the actual rotor (22) spin axis is displaced from the null spin axis (28) for providing current to said torquer coil (34) to urge the axes to coincide. Demodulators (70, 72) can be provided for providing output information in an X-Y coordinate format which is indicative of the actual input angular rates about corresponding axes.

Abstract: A fishing reel has a handle shaft, a movable member movable along an axis of the handle shaft, and a handle projectable and retractable relative to the movable member in a direction normal or substantially normal to the shaft axis. The reel further includes a handle-length adjusting mechanism engageable or pressure-contactable with the movable member or a further member movable relative to the movable member when the movable member is moved along the shaft axis thereby to prevent a projecting/retracting movement of the handle.

Abstract: A control system for, for example, a null-point gyroscope is provided in which, to minimize stiction, the control system is arranged to apply a decreasing oscillatory drive output to a precessed element of the gyroscope.

Abstract: A lifting jack for automobiles has an extension arm with a particular fastener which may be used to connect longitudinally elongated tubular sections. A series of interlocking sections are provided which need not be identical (e.g. in particular having different ends). The sections are linked in a positive lock (snap fit) by a fastener having one or more resilient legs biasing a lug.

Abstract: A remote actuator for an enclosed molded case circuit breaker or disconnect switch utilizes an actuator cable connection with the circuit breaker operating handle in a "pull-pull" arrangement. The cable is arranged in an endless loop between the actuator handle and the circuit breaker operating handle. Moving the actuator handle in a first direction pulls the circuit breaker operating handle to its ON position while moving the actuator handle in an opposite direction pulls the circuit breaker operating handle to its OFF positoin. A retractable handle extender on the actuator handle increases the torquing force applied to the actuator handle and the circuit breaker operating handle.

Abstract: With an electrically caged, dynamically tuned gyro, the torquers (34, 36) contain two annular discs (58, 60) which extend out radially and are attached to the gyro rotor (18). The annulalr discs (58, 60) are axially magnetized and an air gap (66) is formed therein between. The torquers (34, 36) fcurthermore contain flat coils (68, 70; 72, 74) which are radially arranged and partially extend out into the air gap (66).

Abstract: Suspension stiffness about the input axis of a gyro is increased by selectively disabling suspension legs when the gyro float exceeds a predetermined deviation away from the equilibrium position. Float position may be measured directly or inferred from monitoring currents in the electromagnetic suspension system. Suspension legs are re-energized when the float returns to within the predetermined deviation from the equilibrium position.

Abstract: A gyroscope system comprises a dual-axis rate gyroscope (1) including angle pick-offs and rotor torque applying device (5), and a control circuit (3) arranged to supply a control signal to the rotor torque applying device (5) in accordance with the output angle sensed by the angle pick-offs. The system further comprises an angular acceleration sensor (2) which is independent of the dual-axis rate gyroscope and is arranged to output a signal to the control circuit (3). The signal modifies in accordance with the sensed angular acceleration the control signal supplied to the torque applying device (5). Preferably the angular acceleration sensor (2) forms part of a guidance system independent of the dual-axis rate gyroscope (1).

Abstract: A magnetic rotor suspension system including a magnetic rotor having a spin axis, and a generally spherical housing spaced from the rotor. The system includes means attached to the housing for applying magnetic fields to the rotor to fix its lateral and axial position relative to the housing and to adjust the angular orientation of the spin axis of the rotor relative to the housing.

Abstract: A dynamically tuned gyro is disclosed in which a gyro rotor is mounted on an rotor shaft of a spin motor through the medium of a hinge unit. The rotor shaft is in the form of a hollow hysteresis ring mounted rotatably by the intermediary of a pair of bearings, while the gyro rotor supported by the hinge unit is disposed within the hollow inside space of the hysteresis ring.

Abstract: A permanent magnet, alternating current motor having a variable hysteresis output coupling has an annular permanent magnet rotor caused to rotate within a stator structure. This permanent magnet rotor is capable of being shifted laterally to engage or disengage a hysteresis drag cup output device. With this arrangement either an off-on output torque can be provided, or the output torque can be modulated.

Abstract: A portable crash-survivable kinetic flywheel storage machine which makes use of a ring shaped flywheel which is designed to be suspended by electromagnetic levitation. The structural and mechanical arrangement combine to allow functions which the unique electronic suspension system will interact with. The combination will allow rigid suspension and special crash stabilization capability, which is more important to the function of this particular invention than the efficiency advantage of the ring shape by itself. The flywheel is mostly composed of circumferentially wound fiber reinforced composite material. Induction loops are embedded in the skin of the flywheel, and a thin magnetic ring is positioned along the inside of the flywheel. This minimum excess mass is attached to the high strength flywheel in order to reduce the total parasitic momentum which will have to be controlled by the magnetic levitation system due to outside forces. A solid, hermetically sealed, physical enclosure surrounds the flywheel.

Abstract: An inertial sensor arrangement comprises two electrically restrained gyros with three mutually orthogonal input axes. After A/D-conversion pick-off signals are supplied to a digital computer which forms part of the restraining loop of the gyros and provides digital output signals. The output signals are applied to a D/A-converter which supplies corresponding currents to the torquer of the gyros. Thereby integrating quantization errors are avoided. The cross-coupling behavior and gyro errors can be compensated in the computer. The inertial sensor arrangement can be measured as an entirety. The gyro parameters measured thereby are memorized in an EEPROM and are taken into account in the computer.

Abstract: A telescoping pole crank assembly having a tubular pole crank which movably mounts an extension pole for setting the overall length of the pole crank assembly. The extension pole is held in its adjusted position by a locking collar structure including a collar collet fixed to the pole crank and an outside collar rotatably mounted thereon for controlling the engagement of clamping fingers on the collar collet with the extension pole. The extension pole is rotationally interlocked with the pole crank by a series of elongated ribs formed on the extension pole which interfit with slots between clamping fingers of the collar collet. The components are held in assembled relation by rivets which interconnect the collar collet to the pole crank and with the rivets being held in position by the outside collar which is rotatably threaded on the collar collet and a coacting structure on the outside collar and the collar collet limit the separating movement of one with respect to the other after initial assembly.

Abstract: Liquid bearing two degree of freedom inertial sensor apparatus is disclosed. A single liquid bearing sensor is configured in a two degree of freedom rate gyro mode, or two of the liquid bearing sensors are made pendulous along their spin axes and configured in a two degree of freedom rate gyro and accelerometer mode.

Abstract: A gyroscope with a rotor which rotates about a nonrotating axis is simple its structure and has but a few movable parts because the rotor axis (2) is divided into two sections by an articulation piece (8), whereby one section (2a) is connected with the housing (11) and the other section (2b) is tiltable about the articulation piece and carries the bearing axis (13) for the rotor (5). The articulation piece (8) is arranged approximately in the center of gravity of the rotor (5). The gyroscope (10) may be constructed to have one or two degrees of freedom and it may be equipped with the measuring device necessary for its operation as a displacement gyroscope or as a rate gyroscope. For a measuring operation in which the rotor (5) is driven only for the uptake, a compensating circuit is provided with an amplifier (23), a servo-control (24), and a multiplier (25) for producing a measured signal proporational to the measured quantity independently of the r.p.m. of the rotor (5).

Abstract: Gyroscopes, particularly those with permanent magnet torquers, may be temperature sensitive. A temperature signal may be derived and used to correct the temperature dependent parameters such as gyro scale factor. Herein, instead of or in addition to such correction, it is proposed to regulate the gyro temperature by varying the torquer signals and hence controlling the power dissipated in the torquer coils. The torquer signals may comprise positive- and negative-going pulses of fixed amplitude and having respective durations appropriate to produce the required torquing effect. Then, the dissipated power can be controlled by varying the durations of the inter-pulse dead-zones.

Abstract: The apparatus and method for reducing gyro activation time is to be used with a gyroscope including a float floated within an outer case. An electromagnetic suspension is provided for maintaining the float at an equilibrium position within the outer case. In accordance with the present invention, the centering force is increased and the activation time decreased by selectively disabling one of the electromagnets in the suspension.

Abstract: An improved single-boom sailing rig for sailboards, and methods of use, are disclosed. A curved, rotatable boom (100) is provided with a forward end set at a slight angle with respect to the chord, with a separately-rotatable camber control (110) located in the forward end within reach of the sailor's forward hand, for controlling sail curvature with sails (18 and 19) filled and drawing. A finger-operated mast clamp (120) connects boom (100) to mast (13) and provides pivot pin (126) as a bearing onto which the boom (100) may be pushed during assembly. A boom extension (130) is provided with an eccentric locking mechanism for matching boom length to various sail sizes. An alternative extension (230) is locked by insertion of a pin (233) through any of a series of holes (234). Boom extensions (130 and 230) are provided with a sand-proof aft boom bearing assembly (140) having an aft pivot pin (141) which is pushed into plug (145) during assembly, to connect the clews of sail components (18 and 19).

Abstract: The gyroscopically stabilized magnetic suspension system constitutes a base assembly which itself constitutes a narrow beam source of electromagnetic energy disposed at substantially the radial center of the base assembly. The base assembly also includes a first toroidal magnet surrounding the source of electromagnetic energy, the first toroidal magnet having a polarity transverse to its toroidal plane. Also provided within the base assembly are first anti-spin magnets disposed beyond the outer toroidal radius of the first toroidal magnet, the anti-spin magnets having the same magnetic axis as the first toroidal magnet but, however, having an opposite polarity thereto. The system also constitutes a suspended assembly itself constituting an electromagnetic energy receiving and converting means, and a motor disposed upon the electromagnetic receiving means and powered thereby, the motor having an axis of rotation and alignment with the axial center of the first toroidal magnet.

Abstract: An electromagnetic bearing apparatus having five degrees of freedom includes two radial magnetic bearings. Each of the radial bearings consists of two pairs of electromagnets. The electromagnets of one pair are arranged opposite one another around a rotating shaft, and the other pair is arranged in the same perpendicular plane as the preceding pair. The pairs of electromagnets in the two radial bearings are respectively controlled to stabilize the rotating shaft to obtain automatic regulation, in which deviation of the shaft in a radial sense is compensated according to the component of shaft radial deviation and deviating velocity and the gyro-effect which will be caused by the perpendicular compensating torque to compensate the future rotation in the perpendicular component.

Abstract: A single-axis servoed rate gyroscope has a sealed gimbal assembly that is mounted by bearings for angular displacement about a rotational axis, at right angles to the gyroscope spin axis. The gyroscope torquer comprises a circular, cylindrical coil mounted at the bottom of the gimbal assembly, coaxially of the spin axis and below the rotational axis. The coil extends in an annular gap formed between a cylindrical permanent magnet, mounted on the gyroscope base structure, and a part of the base structure which surrounds the magnet and which provides a magnetic return path. The magnet is polarized at right angles to the spin axis and the rotational axis, so that energization of the coil causes a restoring torque on the gimbal assembly about the rotational axis. The bearings are located in V-shape slots formed in the base structure surrounding the gimbal assembly.

Abstract: In a dry tuned gyro, two pairs of coils 44 having ferromagnetic cores 46 are provided as torquers, which act on a ferromagnetic gyro rotor 36. The coils 44 are each angularly offset by 90.degree.. Opposite coils 44 are energized in opposite directions by a direct-current signal and provide a torque. Due to the core 46 only low currents are required for that. The coils 44 are supported on sensors 48, which respond to forces of reaction. The sensors 48 include crystal oscillators and supply a torque signal in the form of a frequency. Simultaneously alternating currents are applied to the pairs of coils 44 and act as position pick-offs as well due to the variation of the inductivities. The pick-off signal from one of the pairs of coils 44 controls the direct-current signal for the other pair, and vice versa.