Abstract: An apparatus for reciprocatingly orbiting a saw blade with respect to a workpiece is provided. The saw blade is cammingly driven through a cam track to reciprocate the saw blade generally along a first axis to saw the workpiece. The saw blade is contemporaneously driven through a bearing to move the saw blade about a pivotal axis to space the saw blade from the workpiece when it is not being sawed. Cam tracks of irregular configurations are provided for improving cutting efficiency.

Abstract: Objects (240) are picked up from a conveyor (242) by a pickup head (90, 92), moved radially by a transfer assembly (26-50; 82-92) which then is rotated by an actuator (16) to position the pickup head at a second location where the transfer assembly moves the pickup head radially.

Abstract: A plunger pump suitable for an apparatus for injecting liquid under high pressure through a plurality of nozzles (104) into the turf. A plunger (34) of the pump is connected through a connecting rod (39) to a crank shaft (12) for the reciprocation thereof, and the crank shaft is more quickly rotated through its angle of rotation at the discharge stroke than through the angle of rotation at the suction stroke of the plunger to increase discharge pressure of the liquid upon its intermittent injection.

Abstract: A method and apparatus is provided for reducing optical chatter for use with a machine that is adapted to perform an operation on a surface of a workpiece by bringing a rotating roller into contact with the surface as the workpiece is advanced past the roller. The roller of the machine has a central axis and is powered to rotate about the central axis. The apparatus comprises an oscillation inducing device that is operably coupled to the roller for inducing an axial oscillation in the roller. The frequency of the induced oscillation of the roller is substantially greater than the frequency of rotation of the roller. The method for reducing optical chatter comprises the step of imparting axial oscillations to the roller during rotation of the roller, the imparted oscillations being of substantially greater frequency than the frequency of rotation of the roller.

Abstract: A water filled crystal ball with undulating pivot arms is disclosed. The important parts comprise a central rotating shaft, a bushing, undulating pivot arms, and a rotating disk. It is the rotating motion of the central rotating shaft that is the driving force. It is the outer bushing which is the levering force that causes an up and down undulation of the pivot arms inside the glass sphere of the crystal ball. Decorative objects above the fixed disk are moved by a track which is fixed to the top of a rotating disk and move in a level radial back and forth fashion. This produces a scene in which there are multiple directions of motion of decorative objects within a glass sphere.

Abstract: There is disclosed a mechanical pressing machine utilizing a rotation cam, in which an unbalanced inertia force, produced during a reciprocal movement of a slider, is canceled in a slider system without producing a large flexure in the whole of the pressing machine, thereby enhancing a dynamic precision. The slider and a balance weight are mounted respectively on an upper portion and a lower portion of a frame for vertical sliding movement. The slider and the balance weight are connected through links to a pair of sliding blocks which are reciprocally movable in opposite horizontal directions through a rib cam. With this arrangement, the slider and the balance weight are reciprocally moved vertically in opposite directions, respectively, so that an inertia force of the slider is canceled in the slider system.

Abstract: A device for reciprocating a plunger according to the present invention comprises: an electric motor; a drive shaft rotated by the electric motor; an inner race fixedly mounted on the drive shaft, the inner race having an inner race track which is formed on the outer cylindrical surface of the inner race in such a manner that the inner trace track is not coaxial with the inner cylindrical surface of the inner race and the drive shaft; an outer race provided around the inner race, the outer race having an outer race track which is coaxial with the inner race track; a plurality of rolling members provided between the outer race track and the inner race track; and a plunger member movably supported in an axial direction thereof, one end of the plunger member being elastically abutted against the outer cylindrical surface of the outer race. According to the present invention, it is possible to make a manufacturing cost lower, to make the whole of the device smaller in weight, and to make a quality higher.

Abstract: The invention relates to portable power tool intended to form part of a power tool or a conversion unit adpated to be fitted to the shaft of a power tool. The tool includes a rotary cam member (6, 8) having an internal sinusoidal cam track (12) in which cam followers (26) of an output shaft (2) are received. When the cam member (6, 8) rotates, the shaft (2) is caused to partake of a lengthwise reciprocating movement suitable for application to a scraper bit or other tool kit such as a chisel. In an example of the invention, the shaft (86) passes through a fixed bearing ring (88), a slidable sleeve (96) being provided to control engagement of the shaft (86) via a key member (104) with portions of the ring (88) or the cam member (76), so as to enable the shaft (86) to partake of lengthwise movement or to be convertible to rotational movement, as selected by the operator.

Abstract: A massage apparatus for massaging ankles or calves by means of reciprocating movement, comprising driving means which drives a bearing seat and a bearing fixed thereto to eccentrically rotate; the bearing being closely fitted in a slant guide area disposed in front of a self-lubricating sliding member which is pushed to reciprocate in lateral directions along a set of shafts when the bearing is driven by the driving means to eccentrically rotate and generates a horizontal component applying on the wall of the slant guide area; and a rest member for supporting a user's ankles or calves being connected to top end of the sliding member is thereby do lateral reciprocating movement to provide the chiropractic and massage effect on the user's ankles or calves.

Abstract: The invention relates to a device for processing disc-shaped registration carriers, provided with a number of processing stations in which the disc-shaped registration carriers are supported, and with a transport assembly by which said disc-shaped registration carriers can be moved from one processing station to another processing station. The transport assembly is fitted with interconnected, jointly driven holders for simultaneously taking hold of and moving the registration carriers between the processing stations. The processing stations are at least partially fitted with readily exchangeable processing units.

Abstract: A nutational motion damper includes a damping body positioned and constrained by springs to slide on a guide plate having a surface oriented substantially perpendicular to the axis of rotation of a gyroscopic body by opposed spring members. The guide plate is attached to a relatively non-rotating body coupled to the rotating gyroscopic body to follow nutational motion. The springs define a rest position for the damping mass on the axis of rotation and also urge the damping body against the guide plate.

Abstract: A crank mechanism for an internal combustion engine comprises a cylinder, a piston reciprocalable within the cylinder, and a rotatable shaft. The piston is in drivable in connection with the shaft via a connecting rod, a slipper, and a torque lob. The connecting rod is pivotally fixed to the piston, and the slipper is pivotally attached to the free end of the connecting rod. The torque lob is a circular plate eccentrically mounted on the shaft for rotation therewith about the axis thereof. The slipper is slidable along but restrained to the rim of the torque lob. The slipper is constrained to move around a close path, whereby rectilinear movement of the piston is converted to rotary movement of the torque lob or vice versa.

Abstract: A shaker apparatus (10) for shaking the contents of a bottle of nail polish (100) including a bottle holder unit (15) slideably disposed on a pair of vertical guide posts (32) and operatively associated with a rotary drive unit (14) having an eccentric cam head element connected to a variable speed motor (40) for imparting a vertically reciprocating motion to a bottle of nail polish (100) disposed within the bottle holder unit (15).

Abstract: A valve for use with a fluid tap is disclosed having a valve body (1), a handle spindle (3) which is termed to open and close a valve closure member (15). A valve carrier (8) is slidably mounted within the valve body (1) and includes an aperture (9) which receives a shaft (16) of the valve closure member (15). At least one of the handle spindle (3) and/or the valve carrier (8) is provided with a cammed surface (6,12) such that rotation of the handle spindle (3) through only fraction of a turn results in substantial longitudinal movement of the valve carrier (8), and subsequently, the valve closure member (15), relative to the valve body (1).

Abstract: An arrangement for converting linear motion from a power source to rotary motion, wherein the power source is intended to coact with a cam curve so as to generate rotary motion, the rotary motion being performed by an axle; wherein the arrangement includes a rod (4) or corresponding element which is connected to a piston (31) mounted for reciprocating movement in a cylinder (30; 50) through the action of a pressure medium which is intended to act on that side of the piston (31) which is opposite to that side on which the rod (4) is connected to the piston, and further comprises the cam curve (2) which is mounted on one end of the rod (4) and which has curved parts (5) solely on that side thereof which faces away from the rod (4), and wherein the arrangement includes second means which comprises two opposing wing-shaped parts (6, 7) which project outwards away from the axle and which are firmly connected to the axle (3), and wherein a roller (8, 9) is mounted on the outer part of each of the wing-shaped parts

Abstract: A device for adjusting eccentric value at an eccentric portion of crank shaft in press machine having: a main portion at the crank shaft rotatably supported by a frame; an eccentric portion having an axis eccentric from that of the main portion and adapted to be coupled into a connecting member of the press machine, the main portion and the eccentric portion being capable of leaving from each other along the axis of the crank shaft; connecting means provided at a connecting portion where the main portion and the eccentric portion contact with each other for connecting the main portion with the eccentric portion so that eccentric value of the eccentric portion from the main portion can be altered; and drive means for moving the connecting means.

Abstract: A cam assembly comprises a cam plate having formed therein deeper and shallower cam tracks, a first cam follower for movement within the deeper cam track, a second cam follower for movement within the deeper and shallower cam tracks, and a drive mechanism for moving the first and second cam followers with respect to the cam tracks. The cam followers are connected to an article pick-up member. The deeper cam track includes portions engaged sequentially by the first cam follower, and the shallower cam track includes portions engaged sequentially by the second cam follower. The article pick-up member is caused to move to an outwardly extended position and to an inwardly retracted position respectively, relative to the central axis of the cam plate. The article pick-up member is also caused to move through both a like-rotational and a counter-rotational path with regard to the direction of rotation of the drive mechanism.

Abstract: A volumetric pump and method for displacing a predetermined quantity of fluid at a predefined cracking pressure, independent of supply and output pressures. The volumetric pump (30) includes an inlet cracking valve (46), an outlet cracking valve (52), and a plunger (48) for displacing fluid a pumping from a pumping portion (34b) of flexible tubing (34) that extends through the volumetric pump. The pumping portion of the flexible tube fills with liquid when the inlet cracking valve is fully opened and is urged to expand by jaws (236) on pivotally-mounted arms (234). The arms are forced to pivot, as tubing reshaper rollers (160), disposed on the plunger, roll along the inner surface (232) of each arm.

Abstract: A stirring device for facilitating dialysis includes a housing, an axle with a first end portion extending out of the housing and a second end portion extending into the housing, a sprocket connected to the second end portion of the axle, a motor unit provided inside the housing, a circular cam plate mounted eccentrically on and being rotatably driven by a driving shaft of the motor unit, and a cam follower having a curved edge provided with gear teeth which mesh with the sprocket. The cam follower is formed with a cam groove to receive the cam plate. Rotation of the cam plate inside the cam groove causes reciprocating left and right movement of the cam follower to bring about reciprocating clockwise and counterclockwise rotation of the sprocket and the axle. A dialysate chamber confines a receiving space to receive a volume of solvent. The dialysate chamber is provided on top of the housing and is formed with an axially extending tubular sleeve.

Abstract: A worktool transfer apparatus for moving a worktool along a recirculating path includes a chain moveably supported by two spaced sprockets of equal diameter. A motor rotates one of the sprockets to cause circulating movement of the chain. A constant breadth velocity cam is fixedly attached to one of the chain links so that the rotational center of the velocity cam is aligned with the rotational centers of each of the sprockets as the link to which the velocity cam is attached moves about the periphery of each sprocket. Four rollers extend from the cam and ride along an oval track for maintaining orientation of the velocity cam as it moves with the chain. A cross bearing block is moved linearly back and forth by the velocity cam. A worktool is attached to and moves with the cross bearing block and is independently moveable laterally of the cross bearing block.

Abstract: A motion converter for small appliances driven by electric motors, such as electric toothbrushes, electric razors or the like, comprising a motor, tool bit and tool bit carrier, which is driven by the rotary motion of the motor and imparts a preferably orbital motion to the tool bit. The latter is accomplished by a novel mechanism for converting the rotary motion of the motor shaft into a generally transverse reciprocating motion. The mechanism employs a follower having a guide slot with parallel side faces and conically extending, radial outer contoured surfaces. The follower comprises a bore for the motor shaft or for a cam on the motor shaft and is slidingly mounted thereon.

Abstract: An improved double acting piston pump of the type having a shaft connected to the piston for reciprocating the piston wherein the shaft extends from the pump body. The improvement of the present invention is to reciprocate the shaft with an asymmetrical uniform motion rotary cam so that the pump delivers the same constant flow rate of a liquid being pumped during both the forward and the backward movements of the pump's piston.

Abstract: A chemical analyzer providing an analysis slide positioning apparatus and method for properly aligning a test slide relative to a sample dispenser of the chemical analyzer. The slide positioning apparatus is capable of moving the slide in three different planes of movement for effecting alignment of the slide and to control fluid application thereto. The positioning apparatus includes a platform which supports the slide, a mechanism for moving the slide on the support in a first direction, and a drive mechanism for moving the platform and the slide carried thereon in second and third directions extending perpendicular to each other and to the first direction.

Abstract: Apparatus comprising a support structure having first and second members rotatably mounted on the support structure and drive apparatus for rotating the first and second members so that the second member rotates in a direction opposite to the direction of rotation of the first member. A movable member for performing work is mounted on the support structure for reciprocating linear movement and is connected to the first and second members so that rotation of the first and second members reciprocates the movable member. In one embodiment, the movable member does not rotate during the reciprocation thereof but in another embodiment the movable member rotates during the reciprocation thereof.

Abstract: The vertically reciprocal upper blade assembly of a sheet metal squaring shear is activated in a substantially vertical path past a fixed lower blade by means of one or more reciprocal rotary hydraulic actuators. The output drive shaft of the hydraulic actuator(s) is connected to one or more drive straps by an eccentric cam which is keyed to the drive shaft and rotatably received within the straps. The horizontal gap between the upper blade and the lower blade is precisely controlled by suspending the blade supporting gib bracket from pins on the side walls of the apparatus housing and adjustably connecting the gib plate to the pins by eccentric cams. The gib mounting system also provides for adjusting the angle of the upper blade with respect to the lower blade. An improved hold down assembly limits the stroke of the hold down pins to maintain a slight clearance between the hold down pins and the bed surface at all times.

Abstract: The invention relates to a device for a hydraulic unit, in particular in anti-skid systems for vehicle brake systems, which has a radial piston pump. The eccentric driven by a drive shaft in the pump meets pump pistons also located in the pump, usually in the region of high stroke variation speed. An resultant mechanical and hydraulic vibration, which causes noise and annoying movement at the brake pedal, is counteracted according to the invention in that a resilient intermediate element is disposed between the pump pistons and the eccentric element, and the eccentric is driven via a torsionally elastic coupling.

Abstract: A centrifugal brake for limiting the rotational speed of a rotatable body with respect to a reference body, which brake includes a brake element movable by centrifugal force into engagement with an abutment member fixed to the reference body when the rotational speed of the rotatable body exceeds a predetermined value with respect to the reference body; characterized in that the brake element is disposed at a corner of a parallelogram mechanism made of a plurality of pivotably-coupled links such that the brake element is displaced into contact with the abutment member of the reference body when the rotational speed of the rotatble body exceeds the predetermined value.

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: An external heat engine has a piston mounted for movement between a first upper position and a second, lower position, a heater for heating a working gas to forcibly move the piston from the upper position to the lower position (power stroke), a crankshaft rotatable about a main axis, the piston and crankshaft being linked so that movement of the piston from the upper position to the lower position during the power stroke is transformed into rotational movement of the crankshaft during a first portion of one rotation of the crankshaft about the main axis. The piston moves from the lower position to the upper position during a second portion of one rotation of the crankshaft (compression stroke). The piston and crankshaft are linked by a disk, a piston rod connected to the piston and a connecting ring for rotatably supporting the disk.

Abstract: A compact power hammer that can be used to drive post easily and safely by one person as well as for use with other impact tools. The invention is comprised of a cam (26) lifting a hammer (44) and dropping it onto an anvil (30). The impact on the anvil (30) is transferred to the post (56) or impact tool by way of the center tube head (58). The center of gravity of the impact device (10) is below and in the post or impact tool 56.

Abstract: A mechanism for converting linear displacement of a piston to angular displacement of a shaft by positioning a cam in a recess of a unitary piston which is adapted for positioning by differential fluid forces applied to opposite ends of the piston. To provide a linear displacement drive for a shaft positioned to rotate about an axis perpendicular to the axis of the piston, a cam profile consisting of two symmetrical, opposite and identical involutes is employed.

Abstract: A gyroscopic rate sensor has a motor driven shaft on which is mounted a flexible disc rotor enclosed in a gas-filled housing with a rotating rigid plate, also mounted on the shaft, to provide viscous gaseous restraint. A rotating capacitive plate assembly referenced to the drive motor spin axis provides a stable electrical output signal proportional to periodic deflections of the disc rotor. By perforating the disc rotor near the spin axis, spring restraint is minimized while the squeeze film damping provides improved dynamic response.

Abstract: An apparatus for inverting and handling integrated circuit dice employs rotating apparatus for rotating a chip carrier by 180 degrees to invert and transfer dice from one set of receptacles to another; together with an apparatus for precisely aligning dice resting at random positions within a set of oversized receptacles.

Abstract: A motor operated mechanism for transferring energy to the energy storing mechanism of a circuit breaker of the type which utilizes the energy to close the primary contacts of the circuit breaker. The mechanism includes a motor for driving a cam and follower assembly. The cam and follower assembly cooperate with a linkage to supply rotational motion of an energy delivery shaft, wherein the energy delivery shaft is coupled to the energy storing mechanism of the circuit breaker.

Abstract: An impact device having a housing with hollow cylindrical aperture therein. The cylindrical aperture has a rotatable member within. The rotatable member has axial multiple rods thereon. On each rod of the rotatable member there are captive annular masses with a central aperture larger than the diameter of the rod to permit radial movement of the masses with respect to the rod. The rotatable member is driven by a motor and in turn rotates the annular masses which strike impact tools also supported within the housing. The kinetic energy of the annular masses is thereby transmitted via the impact tools to the outside of the impact device.

Abstract: The low-noise pump assembly (10) comprises a unitized assembly wherein a drive shaft (17) of the motor (16) is mated directly with an eccentric coupling (23). The eccentric coupling (23) has a through bore (21) which receives at one end the drive shaft (17) and at the other end a center post (30) of the pump housing. Disposed between the center post (30) and eccentric coupling (23) is a radially inner bearing mechanism (60), and disposed between the exterior of the eccentric coupling (23) and an opening (52) of a ring member (50) is a radially outer bearing mechanism (70). The ring member (50) engages at least one reciprocating piston assembly (45). Rotation of the drive shaft (17) causes rotation of the eccentric coupling (23) to effect reciprocating motion of the pump piston (48).

Abstract: An actuating mechanism for a hydraulic control system including a valve body having one or more valves slidably arranged therein. Each valve is movable along a linear path in a manner regulating fluid flow through the valve body as a function of the linear position of the valve. The actuating mechanism includes a rotatable cam for selectively positioning each valve relative the valve body. Each valve is operatively connected to the cam such that each valve is positioned as a function of cam rotation. The cam is rotated about an axis extending substantially perpendicular to the linear path of each valve.

Abstract: Apparatus is disclosed for providing a predetermined surface scan velocity of the projected field of view of a scanning instrument. The invention is adapted for use in a scanning instrument having scan drive means including an inertial element and detector means coupled to the inertial element for detecting or projecting radiation during a scan. The invention includes cam means mechanically coupled to said inertial element and supported, by a frame, to pivot therewith. The cam means includes a cam having a contour which is varied to provide a specific surface scan velocity profile for the projected field of view. A spring is coupled to the cam via a bearing which translates in response to the contour of the cam as the cam and the inertial element pivot during scan. The spring is attached to the frame to maintain the bearing in contact with the cam. The spring effectively stores energy from and restores energy to the inertial element via the bearing and the cam.

Abstract: A vacuum pump comprises a slide shaft having one end provided with a discharging valve and a diaphragm, a cam plate in press-contact with the other end of the slide shaft to cause reciprocating movement of the slide shaft, a shaft of a motor for rotating the cam plate and a bearing casing for holding a bearing which supports the motor shaft in a freely rotatable manner, wherein the cam plate is provided at its one side surface with a recess for receiving the bearing and provided at its other side surface with a cam surface.

Abstract: A parts dispenser apparatus for fungible parts such as seeds, powder, manufactured parts and the like. A feed hopper is positioned to feed parts to the area of a downwardly inclined trough which is pivoted at a fixed end and driven at the discharge end with a horizontal reciprocating motion. The combined effect of gravity and horizontal reciprocating motion causes the parts to align in the bottom of the trough and discharge one-by-one at the discharge end of the trough. An adjustable eccentric permits control of the reciprocation.

Abstract: This invention relates to a mechanism and a process by which hydraulic pressure principles may be applied to any reciprocating or rotational means, for instance a piston or a motor, to make the energy output thereof more efficient per unit of energy input into these machines. The unitary hydraulic unit comprises a first larger reservoir cylinder and a second smaller reservoir cylinder which is fluidly connected to the first larger cylinder. Energy is input onto the force receiving surface of the first larger reservoir cylinder and force is hydraulically transferred from the first larger hydraulic cylinder to the force transferring surface of the second smaller hydraulic reservoir. In a preferred embodiment, this two-reservoir system can be applied to any machine with a rotational output by means of a disclosed power conversion means. An efficient power takeoff means for converting reciprocal energy into rotational energy for use in connection wiht the unitary hydraulic unit is also disclosed.

Abstract: A press apparatus having a crank shaft mounted in a crown and having at least one crank portion, and first, second and third roller followers which are fitted on the crank portion to be rotatable about the axis of the crank portion eccentric with the rotational axis of the crank shaft and which are disposed parallel with each other in the axial direction of the crank portion in positions corresponding to the left and right ends and an intermediate section of the crank portion. The apparatus also has a slide post which is disposed in the crown to be slidable in the vertical direction and which is connected at the lower end to a slide, and upper and lower roller pads disposed in the slide post and respectively having a pressure-contact surface which pressingly contacts the first and second roller followers and a pressure-contact surface which pressingly contacts the third roller follower.

Abstract: A resilient strain relief elastomer is placed between the stator of a synchro and its housing so that radial distortions of the housing are absorbed by the high shear compliance of the elastomer. Consequently, the stator remains undistorted, and the synchro is able to define accurately the angular position it senses.

Abstract: A peristaltic pumping mechanism comprises a pump housing for holding a peristaltic drive means and adapted to support the drive motor for the peristaltic means. The mechanism further comprises a base member formed with an orifice having a periphery with a plurality of protrusions positioned therealong. The base member receives the housing in the orifice with a lip on the housing resting on the protrusions. The mechanism further comprises a cover which has an edge and a plurality of grips positioned along its edge for insertion between the periphery of the orifice and the lip of the housing to engage the grips with the base member and clampingly hold the housing and its associated peristaltic mechanism between the cover and the base member.

Abstract: An improved adjustment and mounting stage of the type used for the detection of laser beams is disclosed. A ring sensor holder has locating pins on a first side thereof which are positioned within a linear keyway in a surrounding housing for permitting reciprocal movement of the ring along the keyway. A rotatable ring gear is positioned within the housing on the other side of the ring from the linear keyway and includes an oval keyway which drives the ring along the linear keyway upon rotation of the gear. Motor-driven single-stage and dual (x, y) stage adjustment systems are disclosed which are of compact construction and include a large laser transmission hole.

Abstract: An apparatus for conveying and discharging pressed products or similar items from a press. The apparatus has a discharging trough which can be mounted on a portion of the body of the press, and a reciprocating member for causing a reciprocatory motion of the discharging trough. The reciprocating member is driven by a driving mechanism so as to make such an action that a difference exists between the forward moving speed and the backward moving speed, thereby allowing the discharge of the pressed products or similar items along the discharging trough.

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: A method and apparatus are provided for hardening a surface of a cam which forms a chill layer of equal depth on the surface of the cam. The method includes the steps of rotating a cylinder cam and thereby oscillating a holder, rotating a camshaft on which the cam whose surface is to be hardened is located and emitting the high energy toward the surface to be hardened. The cylinder cam which is rotated includes a guide groove which includes at least two straight grooves and at least two `V` shape connecting portions so that `V` shape connecting portions connect the straight grooves and form a continuous peripheral guide groove on a surface of the cylinder cam. The holder which holds the camshaft is oscillated at a constant speed in the axial direction of the camshaft by the rotation of the cylinder cam. The camshaft is rotated in the circumferential direction of the camshaft concurrently with the oscillation of the holder.

Abstract: A flow control device for controlling the flow rate of fluid utilizes a stepping motor. A translating mechanism translates the rotation of the stepping motor into a rectilinear movement which causes a valve to move in either forward or backward direction, thereby controlling a clearance formed between the valve and its associated valve seat. A channel area is controlled in this manner, and a flow control over an extensive range from a minimal to maximal flow is achieved with a high accuracy and improved response.

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.