Abstract: An electrical connector which provides compensation for crosstalk includes a number of conductors positioned at least partially within an internal cavity defined by a housing. The elongate conductors are generally substantially parallel and laterally spaced and include a resilient contact portion at a first end and an insulation displacement contact portion at a second end. The elongate conductors include a pair conductors, at least a portion of which are positioned in an overlapping, vertically spaced relationship. The portions of the pair of conductors which overlap are generally wider than the substantially parallel, laterally spaced portions of the conductors so as to thereby define respective compensating segments. The length of the compensating segments as well as the width of the portion of the compensating segments which overlap can be selected to establish capacitive coupling between the compensating segments so as to thereby compensate for crosstalk between the conductors.

Abstract: An electric connector (1) comprises, an insulating housing (3), and contacts (7) in respective contact receiving cavities (8). The contacts (7) have respective marker surfaces (18) that align with respect to marker surfaces (21, 23) located in the staggered positions on the housing (3) to position at least one of the contacts (7) farther from a mating end (2) of the housing (3) than another of the contacts (7 ). The contacts (7) are to be inserted by engaging a straight surface of an insertion tool against their marker surfaces (18) and then impelling them along the cavities (8) until the marker surfaces (18) are aligned with respect to selected one or the other of the marker surfaces (21,23). The marker surfaces (21,23) can also serve to limit travel of the insertion tool. The contacts after such insertion are positioned in staggered rows and are retained by engagement of barbs (17) with walls of the cavities.

Abstract: A waterproof cover for a connector includes a rear holder portion attached to a rear portion of a connector housing to hold terminals inserted into terminal insertion holes of the connector housing from a rear side of the connector housing; and a waterproof cover portion attached to a rear side of the rear holder portion to cover wires extending rearward from the terminals. The waterproof cover has a pair of first and second cover halves; a hinge for linking a pair of the first and second cover halves so as to be opened and closed relative to each other; and a lock mechanism for locking a pair of the first and second cover halves when the two cover halves are closed. In particular, a front end surface of the first cover half is formed integrally with an outer circumference of the rear holder portion so as to form an end surface plate of the first cover half along roughly all over the circumference of the first cover half.

Abstract: A connector in which double engagement can be easily and positively verified even if an engagement pin has been damaged while being inserted into an engagement pin hole in a housing of the connector. The connector has an insertion engaging device provided with engaging pins for double engagement of a plurality of female terminals accommodated in terminal accommodating chambers which are longitudinally and laterally arranged in a connector housing. The insertion engaging device is provided on one outer peripheral surface of the connector housing, and the connector housing includes ascertainment holes penetrating through positions where fore ends of the engagement pins normally inserted into the engagement pin insertion holes are placed so that the presence of the fore ends of the engagement pins inserted into the engagement pin holes can be visually ascertained.

Abstract: The connector has an insulating body of rectangular cross-section formed with at least one row of passages extending parallel to a plugging direction, each passage being formed with a backwardly directed shoulder. At least one side wall of each passage is cut out to form a detent whose resilience tends to hold it in a position in which it projects into the respective passage. Contact terminals are received in the passages and each sized to be retained by the respective detent against the respective shoulder. A unitary locking grid has an end wall which contacts a front end face of the body and is formed with holes in register with the passages, two side flanks that are spaced apart so as to straddle those two walls of the body which are orthogonal to the row, and two side flaps that are connected to the end wall by flexible portions, and that are designed to contact the outside walls of the body which are parallel to the row.

Abstract: A connector for quickly clamping onto and releasing from an associated generally cylindrical battery post which includes a unitary metallic body having first and second elongated portions disposed in generally parallel spaced relationship with the first and second elongated portions having respective first and second cylindrical section shaped portions disposed therein in opposed relationship. The apparatus also includes the first and second opposed cylindrical section shaped portions biased toward each other, whereby good electrical contact is made with the associated generally cylindrical battery post. The apparatus also includes an oblong member disposed intermediate the first and second elongated portions which enables the connector to be easily removed from the associated battery post.

Abstract: A stamped metal female blade receptacle is three sided, having a longitudinal opening. There is a flat side and curved side. The metal is resilient so that the curved side releases from the plastic when molded into a plug. In a plug, the receptacle is supported against unwanted flexure and biased against a received blade, providing full surface contact on one side of the receptacle. The sides of the receptacle do not fatigue in use. The receptacle is economical of metal and adapted for automated crimping. The structure of the receptacle enables one size receptacle to serve blades of various widths and thicknesses.The receptacles can be provided, integral on a stamping strip and alternately folded over, to be parallel to each other for machine crimping.

Abstract: A small watercraft powered by twin jet propulsion units, each driven by a respective engine. The engine is concealed within a hatch cover that has a larger portion which is removable for removal of the engine and a smaller portion which is pivotal for servicing of the engine without removing the larger portion. A centrally positioned operator's seat has a seat back with a handle so as to facilitate mounting of a rear deck and facilitate a passenger standing on the rear deck during operation. There are disclosed a pair of driving engines positioned within a V-hull in a central location so as to improve stability and yet permit extreme maneuverability. A fuel tank supplies fuel to the engines and is separated from the engines by a bulkhead with both the fuel tank and the engines being accessible when the smaller hatch cover is opened.

Abstract: A small watercraft powered by twin jet propulsion units, each driven by a respective engine. The engine is concealed within a hatch cover that has a larger portion which is removable for removal of the engine and a smaller portion which is pivotal for servicing of the engine without removing the larger portion. A centrally positioned operator's seat has a seat back with a handle so as to facilitate mounting of a rear deck and facilitate a passenger standing on the rear deck during operation. There are disclosed a pair of driving engines positioned within a V-hull in a central location so as to improve stability and yet permit extreme maneuverability. A fuel tank supplies fuel to the engines and is separated from the engines by a bulkhead with both the fuel tank and the engines being accessible when the smaller hatch cover is opened.

Abstract: A toy vehicle playset includes a trackway having a vehicle launcher coupled to a looped track portion and a dual tank unit positioned within the travel path of the toy vehicle through the trackway. The trackway further includes an exit ramp on the opposite side of the dual tank unit from the track loop which is coupled to a toy vehicle catcher and a display area. The dual tank unit includes a pair of tank portions separated by an intervening wall. The dual tank unit is supported within the trackway travel path such that either tank portion is alternatively positionable within the travel path of the toy vehicle. The playset further includes a multiply articulated robot arm supporting one or more thermally conductive tools or stamps which are immersible within the proximate one of the dual water tanks and appliable to the surface of the toy vehicle when resting in the toy vehicle catcher.

Abstract: A toy car structure including a power source for driving a driving wheel to drive a linkage assembly so as to push a movable casing open or close relative to a fixed casing. A pull rod urged by an extension spring is disposed on inner side of the movable casing. When the movable casing is moved, the pull rod is hooked on the fixed casing to form a pulling relationship. By means of the pulling of the pull rod, a driven board is pushed to push open a movable door of the movable casing so as to exhibit the inner decorative body.

Abstract: An apparatus and method for artificially weathering large amounts of marble by use of a horizontally disposed drum having a stone lined interior surface. The drum houses a large quantity of marble having similar surface hardness together with a slurry of abrasive material including silica, clay, and gravel which operates to cushion the marble from chipping during tumbling of the marble. The stone lining of the drum absorbs the impact of marble to reduce or prevent chipping of the marble. The marble and slurry are rotated at a particular speed for a predetermined amount of time. Various types of acid can also be inserted into the mixture providing a faster processing time and surface etching not possible with straight abrasion techniques. The processed marble is removed from the drum and sliced in half so to provide two pieces of weathered tile each having a flat mounting surface.

Abstract: Method for texturing a surface of a metallic thin film of a magnetic disk substrate comprising the steps of: (a) frictionally contacting the surface of the metallic thin film with an abrasive article, wherein the abrasive article comprises an abrasive coating including a water-soluble binder and abrasive particles, wherein the abrasive coating is adhesively attached to a flexible foraminous fibrous backing; and (b) abrading the surface of the metallic thin film by moving the metallic thin film and the abrasive article relative to one another with the abrasive coating in contact with an aqueous liquid solution to form scratches in the surface of the metallic thin film, wherein the liquid solution is free of abrasive particles before contact is initiated with the abrasive coating.

Abstract: In a honing system for producing a light-scattering surface on a photoreceptor substrate for use in xerographic printers, a constant concentration maintenance device is employed to drain an appropriate amount of liquid from a honing slurry to match the amount of liquid added during rinsing of the photoreceptor substrate. The constant concentration maintenance device is mechanically effected by vibrations in the mixing apparatus of the honing system, facilitating separation of the liquid an solid parts of the slurry. Delay between honing and rinsing is eliminated through use of the same honing booth for both operations.

Abstract: A grinding apparatus including a cylindrical grinding wheel assembly mounted on a vertical drive shaft extending from an electric motor through a horizontal work table. The apparatus includes a pressure sensitive electrical switch for activating the motor in response to downward force on the work table. The work table is supported on a housing adapted to contain the motor and can be interchanged with work tables of various sizes and configurations. The grinding wheel assembly includes a core element and a grinding element where the grinding element is secured to the core element by various mechanisms to allow the grinding element to be removed from the core element while the core element is secured to the drive shaft so as to interchange the grinding element in the event that a grinding element has been worn out.

Abstract: The precision cut off machine (10) includes a spindle shaft (24) rotatably journaled on a platform (12). A motor (30) drives the spindle (24) through a cogged belt (36) trained around cogged pulleys (38 and 40). A flexible abrasive cutting disk (64) is attached to the end of the spindle opposite the cogged pulley 40. A fixed workpiece support (70) with a disk slot (74) is pivotally attached to the platform (12) by a hinge assembly (72) and locked in place with the radially outer edge of the disk (64) in the slot. A pump (88) supplies coolant to a wand (92) for cooling a workpiece during cutting. A workpiece is placed on the support (70) and manually advanced for cutting. A fence assembly (116) can be employed to set the length of workpiece. To cut flagged and headed workpieces, a step riser assembly (154) can be used. The fence assembly (116) can be used with the riser (154). A v-block assembly (170 with an adjustable stop (210) can be used on the support (70).

Abstract: A grinding chip fitting type grinding plate uses grinding chips to which cylindrical mounting portions are added, thereby facilitating the attachment and removal of the grinding chips. The grinding plate comprises a plurality of grinding chips each having a cylindrical mounting portion, a grinding chip mounting plate to which the grinding chips are attached, and a holding plate. Each of the grinding chips is provided with an O-ring attached to the cylindrical mounting portion which has a front end to which a diamond chip is bonded. A projection portion is integrally formed at a rear end of the mounting portion. The grinding chip mounting plate has a plurality of grinding chip receiving holes which are radially provided. Each of the receiving holes is a stepped hole composed of a mounting portion receiving hole and a projection receiving hole which is radially offset with respect to the mounting portion receiving hole by a predetermined eccentric amount.

Abstract: A hand held utensil adapted to open elongate sections of crab leg shells and similar objects comprising a manually engagable handle, a planar blade secured to the handle and extending outwardly to a tip, with the forward portion of the blade adjacent the tip being substantially straight. A blade-protecting member is secured in a spaced relationship adjacent the substantially straight forward portion of the blade, with the blade-protecting member extending from the handle for a distance exceeding the length of the blade. An open-ended slot is defined between the substantially straight forward blade portion and the blade-protecting member, with such slot being adapted to receive the shell of a crustacean, such that the blade can cut through the shell as a user grasping the handle moves the blade longitudinally along the shell.

Abstract: An airhouse for supplying conditioned air to the interior area of an enclosed building. The airhouse incorporates one or more blowers having variable speed controllers enabling them to be operated at variable volumetric flow rates. The airhouse housing includes variable area dampers for controlling the inlet of outside or building return air. A dedicated controller is provided for adjusting the inlet areas of the two inlet pathways to provide a constant flow velocity through a direct fire burner through a range of blower volumetric output settings. In addition the units may include variable area diffuser units which tend to maintain constant discharge velocity pressure at various blower volumetric flow rate settings. In addition various control and operating strategies are provided for the individual airhouse units and a distributed array of such units in a large building structure controlled by a central computer.

Abstract: A grille (3) for use adjacent an outlet of a heating, ventilating or air conditioning system comprising a frame (15) and a plurality of blades (25) extending between opposed frame parts. Each blade (25) has a spindle (26) which is rotatably supported within opposed slots (21) formed in the opposed parts of the frame. The slots (21) are open at one end to permit the insertion of the blade spindle and the spindle is supported at the closed ends of the slots. The grille (3) further comprises means for retaining the blade spindles (26) in the slots (21). The retaining means comprise an element (30) mountable upon the frame (15) of the grille such that part of the retaining element (30) engages the blade spindles (26) when mounted upon the frame and prevents the spindles (26) from moving out of the open ends of the slots (21).

Abstract: A safe is provided for use with a wall having an air duct and an opening to the wall which connects the air duct with a room. The safe includes a housing having an interior dimensioned to fit within the air duct so that the housing is recessed in the wall and in alignment with the wall opening. A grille dimensioned to cover the wall opening is pivotally mounted to the housing so that the grille is movable between a closed position in which the grille overlies and covers the wall opening and an open position in which the opening interior is accessible from the room. A valuable container is mounted within the housing or, alternatively, on the rear side of the grille. Additionally, air passage holes are formed through the housing for enabling air flow through the housing, grille and air duct. Alternatively, the grille is magnetically attached to the housing.

Abstract: A mechanism for controlling the flow of air from an air-conditioning unit includes a row of guide vanes which are pivotally held by an outlet nozzle. The guide vanes are located at the lower end of an air course which has been formed within a body of the air-conditioning unit. The guide vanes control the flow of air in both left and right directions. This new design is characterized in that the angle of inclination of each guide vane progressively changes toward the end of the row. The air flow is controlled accurately in both the left and right directions so that the air flow reaches the desired location.

Abstract: An automated gaming table tracking system for a gaming table, such as blackjack. A sensor located in the dealer's card playing area senses the start and end of each game. A unique player identity card is given to each player that contains information on the player. When a player arrives at a player position on the table, the player inserts his player identity card into a player station control at the player position. A central distribution control is connected to each player station control for determining the start and the end of each game and beginning and termination of play by each player at each position. A host computer of the present invention is then interconnected to the central distribution control for storing the player identity information and the player position for each player station control, the start and end of each of the games, and the beginning and termination of play at each player position from the central distribution control. The host computer prints a player tracking card.

Abstract: The gaming system includes a host computer, a plurality of general purpose terminal computers forming player stations remote from the host, means for providing communication between each of the terminals and the host. Each terminal has a program for generating screen graphics and sound locally in response to control data packets generated by and received from the host. The host generates random numbers for a game being played on a connected terminal within preset criteria for that game in response to data packets received from the terminal. The data packets are of variable length between 1 and 80 bytes. The host sequentially stores the minimum significant information for replaying a game, auditing and security, such as accounting data of each player at the start of each game, random numbers generated by the host, responses received from a player, and whether a game was completed.

Abstract: A device which can transmit torque between a first component (e.g., a flywheel) and a coaxial or nearly coaxial second component (such as a hydraulic drive) has an internally toothed hub which transmits torque to or receives torque from one of the components, and a flange which surrounds the hub and transmits torque to or receives torque from the other component. The flange has a disc disposed in a plane normal to the axis of the hub, a rim spaced apart from the hub and surrounding the disc, and pairs of reinforcing ribs defining acute angles which diverge from the rim toward the hub. The ribs of each pair are or can be mirror images of each other with reference to a plane located between such ribs and including the axis of the hub. One rib of each pair is subjected to tensional stresses and the other rib of each pair is subjected to compressive stresses when the one component rotates the hub or vice versa. The device can be made, at least in part, of a plastic material.

Abstract: A constant velocity universal joint wherein the relatively moveable components are substantially contained within a cup-like housing having an open end. A spherical enlargement on the input shaft provides a sealing surface which may be sealed with relatively conventional seals. A concavo-convex connecting link is interconnected with both the input shaft and with the output shaft through interconnected arcuate T-shaped tongues and grooves which extend concentrically to the spherical enlargement surface to permit the joint components to maintain proper position at all times.

Abstract: Golf practice apparatus utilizing a tethered golf ball wherein the kinetic energy is dissipated when the ball is struck. Initial velocity vectors in the x, y, and z coordinates are derived by time integrating the respective forces over the period of time during which the kinetic energy is dissipated. From these derived velocity vectors is computed what the trajectory of the golf ball would have been if it had been untethered. Alternatively, two of the initial velocity vectors may be derived as described above and the third obtained mathematically after first deriving total initial velocity. Golf ball spin about a vertical axis may be obtained for correction to the trajectory by means of a reflective strip on the ground facing surface of the golf club head and two or more sensors for detecting the reflections from opposite ends of the strip.

Abstract: A golf putting practice device is provided which will enable a golfer to practice putts of varying distances in a small area. The device includes a base, a height indicator arm hingedly connected to the base, and a relatively short track (e.g., 6-7') along which a golfer putts. The track may be elevated at one end to a desired height and secured at that height to the height indicator arm. The height indicator arm is calibrated for the length of the track and the various heights to which the track is raised, such that when the track is raised to a certain height (e.g., 2'), a practice putt on the device will correspond to a putt of a desired distance (e.g., 30') on an actual putting green. The surface of the track can be altered to simulate a dry putting green or a wet putting green. Varying putting green conditions, i.e., varying frictional forces exerted against the ball by the putting green, can also be varied simply by varying the height to which the track is raised.

Abstract: A tee divider for a golf ball driving range is provided of unitary construction having an upstanding wall and a console-like formation at one end thereof provided with outwardly opening storage pockets for articles, said pockets having drains for eliminating liquid accumulating in said pockets and grooves in a surface of said formation for holding a golf club in a vertical position. The divider has laterally protruding flanges for anchoring it at the site of the tee provided on the golf driving range.

Abstract: A training device mountable to an arm of an athlete for developing a proper arm swing. The training device includes a support body mountable to the arm of the athlete, a sensor assembly carried by the support body for detecting displacement of the arm in two directions of movement with one direction of movement being rotation about the longitudinal axis of the arm and the other direction of movement being bending of the arm. A signal actuator coupled to the sensor assembly produces a detectable signal when the sensor assembly detects displacement of the arm in at least one of the two directions of movement.

Abstract: In construction of a wood type golf club head, its main body made of a material unsuited for plastic deformation such as FRP and its and hosel made of a material suited for plastic deformation such as metal are separably coupled to each other. Subtle adjustment of ball striking characteristics such as loft and lie angles can be practiced quite freely independently of the material used for the main body.

Abstract: A training device useful with a putter having a head and a shaft extending from the head has a sight line, which may be delineated by a taut string, and two rails for guiding the shaft as the putter is swung through a limited range defined by the rails. The limited range includes an intermediate position, in which the head of the putter is positioned in a lowermost position, a subrange of back-swing positions, in which the head of the putter is raised from the lowermost position, and a subrange of follow-through positions, in which the head is raised from the lowermost position. Each rail has a guiding surface.

Abstract: Disclosed is a golf club having a shaft, a club head located at end of the shaft and a segmented, variable position grip assembly surrounding the opposite end of the shaft. The grip assembly includes an elliptical upper grip member and an elliptical lower grip member. The upper and lower grip members surround the shaft and are adapted to be selectively rotated relative to one another around the shaft to assume locations that enable the golfer to grasp the club in an optimal and consistent manner so that the club head will strike the golf ball at the same angle during successive strokes. The upper and lower grip members are coupled to each other and to the shaft by the teeth of respective spline sets that are moved into detachable locking engagement. A locking collar surrounds the shaft and slides axially therealong into engagement with the grip assembly to prevent the rotation of the upper and lower grip members around the shaft when the golf club is played.

Abstract: A golf clubhead (3) including a front strike face (5), a sole (6) extending rearwardly from the base of the strike face (5), and a vibration damper (10) mounted at least on one side of the head and including a stress plate (11) and a visco-elastic layer (12), wherein at least one of the two components (11, 12) of the vibration damper (10) has at least one opening therethrough.

Abstract: A metal wood type golf club head provided with a conically shaped metal sleeve filled with hard polyurethane material and disposed within the club head shell to extend between the club face plate and back end portion of the club head.

Abstract: The invention concerns a golf club head in which a sole plate secured to a sole portion is prevented from dislodgment therefrom, while keeping the center of gravity of the golf club head low. In the golf club head, a sole plate, made of a material greater in specific gravity than a metal head body formed into a hollow construction having a single internal chamber, is mounted on a sole portion of the head body. A support portion having a plurality of holes is formed integrally with the head body so that an upper surface of the sole plate is held against the support portion. In an embodiment, the support portion is formed into a lattice-shape.

Abstract: The present invention provides a golf ball which exhibits a large flying distance and is superior in stability of iron shot and hit feeling.The golf ball comprises a core and a cover for covering the core, the cover comprising two layers of an inner layer cover and an outer layer cover. A stiffness modulus of the inner layer cover is 3,000 to 5,500 kg/cm.sup.2 and that of the outer layer cover being 1,000 to 2,500 kg/cm.sup.2. A thickness of the inner layer cover is 0.5 to 2.5 mm and that of the outer layer being 0.5 to 2.5 mm. A total thickness of the inner layer cover and the outer layer cover is 1.0 to 4.5 mm. A base resin of the inner layer cover contains 5 to 100% by weight of an ionomer neutralized with a zinc ion.

Abstract: A golf ball includes a substantially spherical surface containing a plurality of dimples of differing diameter. Twelve spherical regular pentagons and twenty spherical regular triangles are arranged on the spherical surface in a manner corresponding to a dodecaicosahedron (12-20 hedron). Each pentagon shares a same asymmetrical dimple pattern such that each of five sides of each pentagon have a dimple pattern that differs from a dimple pattern on four other sides, and all of the pentagons share the same five differing side patterns. Six great circle paths are arranged about the spherical surface, each great circle path being bounded on one side by a series of five adjacent pentagons, one of which is a reference pentagon, and the other four of which are respectively and angularly displaced at angles of 72.degree., 288.degree., 144.degree. and 216.degree. with respect to the reference pentagon. A sequence of angular pentagon displacement of the series is consistent along all six great circle paths.

Abstract: A hydraulic autotensioner having a close-bottomed body in which is sealed hydraulic oil. A plunger is slidably mounted in the body with a gap formed therebetween through which the hydraulic oil can leak. The plunger is formed with a hole in the top thereof, and a return passage extending through the plunger from the bottom of the hole to the bottom of the plunger. A rod, having its bottom end inserted in the hole, is provided with a rod spring for biasing the rod in such a direction so as to protrude out of the body. A plunger spring is provided for urging the plunger against the bottom end of the rod. Also, a valve seat is provided on the bottom of the hole so as to be brought into close contact with the bottom end of the rod. The return passage is opened and closed by axial displacement of the rod relative to the valve seat.

Abstract: In order to improve steering performance and braking performance specifically on a low .mu. road surface during operation of engine braking, there are provided, in a shift control system of a continuously variable transmission, a sensor for determining a wheel deceleration, and a shift controller for changing a shift pattern adequately. When an engine brake range such as a 2 range or an L range is selected, and the wheel deceleration becomes greater than a predetermined deceleration level, the shift controller changes an upshift limit of the engine brake range, to a smaller transmission ratio. By reducing the transmission ratio in this way, the shift control system can reduce an engine braking force applied to the drive wheels and an inertia torque of the transmission against the driving force applied to the drive wheels by the road surface, so that the wheel speed can readily increase to achieve a desirable degree of wheel slip.

Abstract: A control system for an automatic transmission, having a fluid transmission unit for transmitting the rotation of an engine to a speed change unit. The control system includes a clutch which is applied responsive to selection of forward running range; a one-way clutch which is locked, when the clutch is applied, to establish a forward first speed; a brake for locking the one-way clutch, to block reverse rotation of the output shaft of the speed change unit. First and second hydraulic servos apply, respectively, the clutch and the brake responsive to receipt of oil pressures. A control unit controls the oil pressures fed to the first and second hydraulic servos. The control unit starts the feed of oil pressure to the second hydraulic servo responsive to selection of a forward running range, provided the vehicle is substantially stopped, the engine is idling and the foot brake is engaged.

Abstract: A neutral start mechanism having first and second arm members coupled with an input control shaft of a hydrostatic transmission and which extend at angles to one another for being pulled back to a neutral position by a spring. First and second slots are formed in the second arm member for receiving first and second pin members which are positioned in the end portions of the slots when the linkage is in its neutral mode. First and second switches are positioned adjacent the end portions of the first and second slots for sensing the presence of the pin members within the end portions of the slots. The switches are coupled with the vehicle power source for preventing the power source from being started when the pins are not in the end portions of the slots and the linkage and transmission are not in a neutral, non-driving mode.

Abstract: An exercise device having at least one shaft, and a weight attached to the shaft. The weight may be attached in a variety of ways, and the amount of weight may be varied depending on the users needs.

Abstract: In a preferred embodiment, a lower leg exercise device, including: a base member; two, elongate, parallel plates attached to rotating apparatus mounted on the base member; and support apparatus disposed at distal ends of the plates to accommodate thereon selected weights; such that a person standing on the plates, with a foot disposed over each of the rotating apparatus, moves the weights between a first, lowered position and a second, elevated position by alternatingly flexing and relaxing muscles in the person's lower leg.

Abstract: An exercise machine of the horse-type on which a user is seated and glides generally horizontally in a reciprocal motion. The present invention comprises a support frame, a seat assembly, a unitary handlebar/footrest assembly, and a glide assembly. The glide assembly is pivotally and operably linked to the seat assembly by a seat riser arm, which in turn is pivotally and operably linked to the handlebar/footrest assembly by a linkage bar. The frame includes generally a rear vertical support fixedly extending upwardly and perpendicularly from a rear base foot, a longitudinal rail assembly upon which the glide assembly reciprocally moves and further includes a front vertical support fixedly extending upwardly and perpendicularly from a front base foot. The front vertical support allows the pivotal attachment of the handlebar/footrest assembly forward of the vertical leg support. The glide assembly is equipped with a frictional means by which added resistance may be variably applied.

Abstract: A universal aquatic exercise machine that includes a plurality of exercise devices, for example, a first exercise device rotatably mounted on a base that moves through a rotary path of motion, a second exercise device rotatably connected to the base that moves back and forth in a reciprocating motion and a third exercise device mounted on the base for reciprocating back and forth motion. The aquatic exercise machine includes a pivoting seat that permits the exercise devices to be performed in either a seated or an erect posture. The exercise devices may have fixed area resistance elements or variable area resistance elements. In addition, underwater footwear facilitates submerged leg exercises and activities such as sliding, skating and other activities.

Abstract: A multiple sport training and exercise apparatus provides a constant resistive force against exercise movements. The apparatus comprises an upright frame having two upright members with a plurality of cross bar members spaced between the upright members. A base stabilizes the frame in a vertical position. One or more elastic ropes produce resistive force, with each of said elastic ropes having one end attached to the apparatus. At least one means for slidably engaging the elastic rope are positioned on at least one of the cross bar members. A means for adjusting the amount of resistive force produced by each rope enables the amount of resistance to an exercise can be quickly and easily adjusted. The apparatus can also be easily and quickly adjusted to allow an exerciser to change from exercising one set of muscles to another.

Abstract: A single-ply wound paperboard tube is disclosed as is its forming method. The method comprises applying an adhesive to a paperboard ply having relatively thin longitudinal edges and a relatively thick central portion therebetween, then spirally winding the ply about a mandrel in edge-overlapping relation. Preferably, the thinned edges and the thick central portion of the ply share a common face, and the ply is preferably steam-conditioned to raise its temperature and its moisture content prior to the application of the adhesive.

Abstract: Apparatus for producing continuous form stationery folds a strip of paper along transverse lines of weakening formed therealong to form a zig-zag stack of paper. The apparatus alters the orientation of the zig-zag stack of paper to facilitate further processing of the paper.

Abstract: A centrifuge bowl includes a flat base and a generally conical peripheral wall upstanding from the base. A jacket surrounding the bowl allows injection of water from a chamber between the bowl and the jacket through openings in the peripheral wall into the bowl for fluidization of materials within the bowl. A feed duct extends to the base and discharges feed materials onto the base for moving outwardly onto the peripheral wall and passing over the peripheral wall. A first portion of the peripheral wall is smooth, imperforate and frusto-conical. At the upper edge of the first portion is provided a pair of axially spaced recesses with injection openings at the base of the recesses for the fluidizing water. Heavier materials collect within the recesses and are discharged outwardly through a plurality of controlled discharged openings around the recesses. Lighter materials escape through the open mouth of the bowl.