Abstract: A power-driven, wheeled vehicle which interacts automatically with winders in a spinning area to doff completed yarn packages, insert empty bobbins on standby chucks of the winder, deliver the packages to an overhead powered conveyor to place the winder in condition for another cycle and to move to another winder to repeat the operations.

Abstract: Apparatus for storing metal strip comprises two coaxial roller cages, which are mounted in a common frame and include rotatably mounted rollers, which extend parallel to the horizontal axis of the cages. In order to minimize the outside diameter of the apparatus and to ensure a positive guidance of the metal strip, the roller cages are axially juxtaposed and the frame carries a strip guide, which extends inside the roller cages along an S-shaped path from the periphery of one cage to the periphery of the other cage. For a control of the apparatus, the frame is mounted for rotation on the axis of the cages.

Abstract: A device for automatically supplying reels to a utilizer machine, in which a support element for a reel is movable between the output of a reel magazine and an unwinding spindle disposed on the utilizer machine and is provided with actuator means which is operable to actuate locking means carried by the unwinding spindle, by contact therewith, to lock each reel in succession thereon.

Abstract: To cinch a web end portion onto a web-free core, the core is driven by a core drive mechanism at an outer surface speed in excess of the speed at which the web end portion is fed to and threaded around the core. The core drive mechanism slips but continues to drive the core after the web end portion is cinched onto the core. After the web is wound to form a roll of predetermined diameter, the core drive mechanism is disengaged from the core to terminate the core drive. The outer surface of the partially built up roll further substantially simultaneously engages a builder roller which surface drives the roll.The core drive mechanism further comprises a gudgeon for engaging and rotatably driving the core, and a rotatably mounted drive wheel which is driven by the builder roller. The drive wheel is coupled to the gudgeon by a bearing for driving the web-free core at an outer core surface speed greater than the web speed.

Abstract: An apparatus for feeding web material from a supply roll to processing equipment of the type that exerts an intermittent pulley force on the web during intermittent advance through the processing equipment. The web feed apparatus includes a brake for controlling unwinding rotation of the web supply roll which is operated under the control of a dancer to decrease the braking action when the web is fed at a rate faster than the rate at which it unwinds from the supply roll. The web feed apparatus also includes web feed rollers arranged to drive both sides of a folded web while both sides of the web are under the same tension.

Abstract: In an axially telescopic coil carrier comprising a plurality of parts for receiving threads or yarns, wherein carrier elements extending from a respective ring element extend lengthwise of the coil carrier, from a substantially cylindrical surface and are guided for displacement relatively to each other, reinforced sections are provided near the ring members in which adjacent carrier elements are connected to each other by circumferential supporting elements. The free ends of the carrier elements project axially beyond these reinforced sections. At least a part of the supporting element of each coil carrier part projects, at least in that zone of the reinforced section which is remote from the associated ring member, radially no more than into the surfaces on which the inner edges of the free ends of the carrier elements of the adjacent coil carrier part are disposed. The supporting elements thus form radially effective supports for these free ends of the carrier elements.

Abstract: An adapter for use on a sewing machine which is equipped with first and second spool pins permits the machine to operate with non-conventional spools such as plastic or cardboard tube spools, small conical base spools, and large spools having a large bore therethrough. A yoke is rotatably mounted on a stabilizing bar which in turn is mounted on the spool pins. The yoke supports first and second mounting fins. A rod is hingedly coupled to one of the mounting fins and is capable of assuming stable horizontal or vertical positions. Plastic or cardboard tube spools may be mounted on the rod when in a horizontal position. The yoke is then adjusted so as to minimize the distance between the point the thread comes off the spool and the first thread guide on the machine. Larger spools may be mounted on the first mounting fin or, when the rod is in a vertical position, on the second mounting fin.

Abstract: A cassette for winding a band-like photographic material has housing with a slot for introducing the material, a driven winding core having an endless band tensioned by a plurality of rollers and arranged to place the front of the material onto the winding core, and two lever arms pivotable about pivot axes which are parallel to the winding core axis, carrying at their ends guiding rollers and coupled with one another via the endless band, wherein one of the lever arms is connected with a spring element so that the lever arms in an initial condition assume a first position in which said endless band widely embraces the winding spool, and during further winding upon overcoming a dead point of the spring element the lever arms assume a second position in which the endless band is brought out of the region of a greatest possible spool.

Abstract: In the combination of a daylight aiming device, a night aiming device and a guiding device for tracer missiles emitting infrared beams of a narrow spectral band both the night aiming device and the guiding device work on infrared beams of the same spectral region. This region includes the narrow spectral band of the beams emitted by the missile. Partially transmitting mirror means are arranged along the optical axis of the night aiming device for filtering the missile beams of the narrow spectral band out of the beam bundle and reflecting them to the guiding device, which conducts flight path control signals to the missile. The remaining beams of the spectral region are transmitted to the aiming device. An infrared/visible-light image converter is part of the aiming device. The visible light rays emitted by the converter are reflected into the ocular lens of the aiming device for viewing by the operator.

Abstract: An apparatus produces a guide beam pattern for a missile. The guide beam pattern comprises a plurality of bundles of light beams collectively surrounding the axis of the beam pattern. The bundles of beams are modulated differently by different electric modulating potentials from optical modulators. In order to produce the bundles of light beams without mechanical and aligning devices and to obtain a guidance system operating over the entire cross-section of the beam pattern, PLZT ceramic segments are provided as the modulators, each of which forms bundle of light beams. The segments collectively cover the entire cross-section of the beam pattern from a single source of light. A spearate modulating potential is applied to each of the segments.

Abstract: A guided projectile comprising an energy source supplying a gas flow which feeds two pairs of exhaust nozzles, each pair of nozzles being disposed in the corresponding steering plane. Each of these nozzles is provided with a valve for regulating the relative flowrates of the throughflowing gases; this valve being formed essentially by a pivoting vane hinged about an axis; these vanes are interlocked in pairs and positioned by means of two independent mechanisms formed by a deformable parallelogram, the element 40 being the drive element. According to the invention, the directions of the thrust forces created by the nozzles converge at a point P situated on the axis of the projectile and this point P may merge with the center of gravity G of the projectile.

Abstract: An aircraft take-off ramp, for causing an aircraft with a compressible, shock absorbing and damping landing gear to be so urged from a horizontal path that it follows an initially ballistic trajectory on leaving the ramp, has its profile derived from a notional generally circular arc. The notional arc has its radius selected so that the center of gravity of the aircraft, if its landing gear was incompressible, would follow a desired locus. The derived profile is so modified from the notional arc that during traverse of the ramp the compressible landing gear is compressed so that the center of gravity of the aircraft follows the desired locus.

Abstract: Actuators transversally movable through a reciprocable mechanical connection, under the control of a single unit disposed at one side of the strip are housed within a channel provided across the strip. Each actuator comprises a cam having an inclined plane and a cable support constantly engaging the inclined plane and adapted to pivot about an axis parallel to the cable axis, so that the raising of the cable support causes the cable to be raised while being off set in relation to its retraction channel.

Abstract: The present Airfoil Fuel Ejection Device consists of a retractable bulkhead(s) located in the under-side of the airfoil. The retractable bulkhead(s) is actuated through a combination of rotable worm gear drive shaft, rigid rod guidance members, drive motor, gaskets and remote control mechanism acting in unison. Specific embodiments of the Airfoil Fuel Ejection Device act through levers, support members, tracks, cylinders and pistons, brackets, interior bulkheads and guides. All the embodiments embrace a retractable bulkhead(s) seated in gaskets contoured to the circumference of the bulkhead in order to allow the latter to assume a flush position with the remainder of the under-side of the airfoil during normal flight operations. In addition the gaskets in conjunction with rigid rods assure a secure closure which deters inadvertent leakage or dumping while maintaining the structural integrity of the airfoil.

Abstract: An apparatus for the carriage and release of aircraft stores uses two ejer pistons with integral latch hooks. The pistons are hydraulically interconnected to release a store by simultaneous extension. The latch hooks are opened by upward compression of a spring within the ejector piston. A pair of hydraulically actuated sway braces are mounted on each piston assembly.

Abstract: A drive system for high-lift devices on aircraft having two power drive units, one at each end of the connecting torque tube system, so as to force sum the outputs. A one-way brake always insures against inadvertent retraction of the device but allows extension. An asymmetrical protective device prevents the high-lift device from an asymmetrical condition even after a combined power loss and mechanical failure of the torque tube. The power drive units consist of hydraulic motors driving through a gear box and a no-back brake combination and are controlled by a servo valve.

Abstract: A force control member assembly 1 comprises a force control member unit 2 carried by an intermediate member 3, the intermediate member 3 itself being attached to a fixed bracket 4 by pivot means 5 allowing resilient movement of the intermediate member 3 with respect to the fixed bracket 4 about pitch and roll axes as shown at 6. The force control member unit 2 includes a force control member and force transducer means associated therewith to generate force control signals related to control forces applied to the force control member. In use, when a control force is applied to the control member, a force control signal will be generated simultaneously with a significant displacement of the intermediate member with respect to the fixed member. The intermediate member will return to a median position on removal of a control force; this imparts a `feel` characteristic to the assembly.

Abstract: A clamp device including a resilient lining and with the clamp including an elongated member having a loop portion, and a resilient lining formed by a strip of resilient material of a sufficient length to extend along the elongated member in the loop portion and of a sufficient width to extend across the elongated member in the loop portion. The strip of resilient material is formed on one side of the strip for attachment to the loop portion of the elongated member so as to have the strip form a resilient lining on the inside of the loop portion of the elongated member. The strip of resilient material includes gripping means formed on the other side of the strip and with the gripping means formed as a plurality of needle-like protruberences extending along the length and across the width of the strip from the other side of the strip and toward the center of the loop portion of the elongated member.

Abstract: A mounting for a tank receptacle in a lattice-shaped, stackable, cage-like supporting framework surrounding the receptacle. The receptacle is supported in the framework at three points in the case of a supporting framework which is not torsionally rigid relative to the receptacle. Where the receptacle is supported at four points in the framework, two support points are defined by hinges connected to each other through equalizing connecting rods. A strap connects the receptacle to the framework at each support point, a lever being located between each hinge and its respective strap. Spring-loaded buffers limit the movement of the levers.

Abstract: A sign post assembly having an elongated post with a hollow end for positioning over a base member which is secured to the ground by base rod members slidably mounted in the base member and driven into the ground. A post rod member is connected to the hollow end of the post for holding the post on the base member. The post may have bowed walls and a longitudinally extending rib for increased rigidity. The base member may have a cruciform or rectangular cross section with longitudinally extending sleeves in diagonally opposite corner portions for the base rod members. The cross arm may also have a longitudinally extending rib for stiffening the arm and providing a groove for an upper sign. A tab may be provided extending outward from the hollow end of the post and have an opening through which the post rod member may be driven into the ground.

Abstract: An elongated member for the stabilizing and securing of perforated wall board hangers secured to a perforated wall board by at least one aperture therethrough. The elongated member is configured to embrace at least a portion of the shank of at least one perforated wall board hanger. Each end of the elongated member is barbed or configured to provide a locking relationship with an aperture in the perforated wall board.

Abstract: A mounting apparatus comprises a grommet for snap-on attachment to an aperture in an exterior vehicle body panel, a base pad to be placed on the panel and adapted to engage the grommet in such a manner to prevent the grommet from being rotated about its axis relative to the base pad, and a self-tapping screw for insertion into the grommet. By means of the apparatus, an outside rear view mirror assembly is mounted on the panel through work entirely done from the outside of the panel without damaging the paint coating of the panel around the aperture.

Abstract: A rear-view-mirror locking mechanism for a car comprises a longitudinal arm for holding the mirror and a U-shaped supporting bar coupled with said longitudinal arm through a locking screw and two spacing plates thereof. By turning the screw to abut tightly against the surface of the longitudinal arm, the supporting bar and the longitudinal arm are locked in a fixed position, secured at the fender of the car thus holding the mirror firmly.

Abstract: A musical instrument holder is disclosed, especially useful for large, heavy, cumbersome or easily dented instruments such as Sousaphones and Tubas. The holder is convertible from use as a wall-hanging holder or rolling-stand holder to a ready-access holder attachable to horizontal surfaces of various thicknesses, such as chairs or benches at the performance site. The wall hanging holder includes a wall-mount, however, the wall hanging holder can be quickly detached and converted into the ready-access holder. The ready access holder for attachment to horizontal surfaces includes means for securing the holder to the horizontal surface which comprises a means of lateral stabilization, and a primary instrument-holding means equally usable in either the horizontal or vertical position.

Abstract: There is disclosed a mounting bracket for one or several pumps having a support member with lateral, perpendicular projections having front edges with grooves formed therein for receiving corresponding engaging elements provided on the surface of the end closures of a pump. A center most groove is provided for each axial engaging element of the respective pump to firmly seat the pump housing in place in the bracket. Clip elements are provided superimposed over the respective center grooves to help guide the pump into position and retain the pump in the bracket thereafter.

Abstract: Inner and outer upstanding peripheral frames are provided and include corresponding inner and outer sides spaced relative to each other. Upper and lower parallelogram links are pivotally connected at opposite ends to each pair of corresponding inner and outer sides and structure is provided for lifting the outer frame. Upper and lower pairs of coacting inner and outer wedge structure is carried by each pair of corresponding inner and outer sides engageable with each other upon downward displacement of the outer frame relative to the inner frame to limit such downward displacement to a lower position of said outer frame with said links substantially horizontally disposed and engageable with each other upon upward displacement of the outer frame relative to the inner frame to limit such upward displacement to an upper position of the outer frame with the links upwardly and outwardly inclined. The sides of the outer frame are mounted to each other against relative movement.

Abstract: An electrohydraulic pressure-regulating valve has a valve housing formed with a chamber and with an intake passage and an outlet passage opening at spaced-apart locations into the chamber, a valve member in the chamber between these locations and formed with a bore through which fluid can flow between the locations, this bore forming adjacent the outlet passage with a valve seat, a valve body in the chamber engageable with the valve seat to block flow through the bore, and means for urging the body against the seat. The valve has a laminar flow throttle in the bore between the seat and the intake passage. With this system substantially greater noise and vibration reduction is achieved in the range about 400 Herz than has been hitherto possible. Since the throttle is constituted as a laminar-flow throttle and is positioned immediately upstream of the valve body and valve seat, it only makes a nominal pressure drop, so that it does not interfere with operation of the valve.

Abstract: A drastically simplified directional solenoid valve with top fluid inlet and bottom fluid exhaust ports employs a conventional electrical bobbin coil with a solenoid iron conveniently secured thereto in line with a simplified axially movable solenoid plunger in an operable relationship with a simple seal at the exhaust port, preferably of O-ring configuration, between a first plunger engaged position inside the seal to maintain valve normally closed when the solenoid coil is not energized electrically and a second position with plunger retracted from the seat of the seal when the coil is electrically energized turning said iron into a magnet with pull force capable of lifting the plunger from the seat to render valve open to exhaust while the plunger is being held against the iron until the coil becomes de-energized at which time the plunger is automatically shifted back to the first valve closed position against the seat by either the drag forces fluid flow provides or by additional biasing force of a compre

Abstract: A bonnetless outside-screw type gate valve made of carbon steel, 31/2 nickel steel or other stainless steel material is provided. A yoke 18 is directly screw-joined to the body 1 in which a stuffing box 7 is provided, and a flanged cylindrical buck seatring 16 is screwedly fixed to the lower portion of said stuffing box 7. Seat rings 15 are pressedly attached against a raised fixing surface portion 12 in the fluid conduit hole 11 with the cylindrical end portion of each said seat ring being bent into the stepped edge of said fixing surface portion 12 to thereby fix said seat rings in position.

Abstract: A bonnetless outside-screw type globe valve made of carbon steel, 31/2 nickel steel or other kind of stainless steel and designed to be usable for controlling a high-pressure fluid is provided. A yoke 19 is screw-joined directly to the body 1, and a stuffing box 7 is provided in the body 1. A flanged cylindrical buck seatring 18 is screwedly fixed to the lower portion of the stuffing box 7, and a disc guide hole 9 arranged to make a slide fit with the disc 16 is formed in said lower portion of the stuffing box. The valve body seat 10 and the inlet and outlet holes 12 and 13 are formed smaller in diameter than the pipeline connected thereto, and each of said inlet hole 12 and outlet hole 13 is provided with a throttling portion (14, 15). This valve is suited for use in the petrochemical apparatuses for the control of a high-pressure fluid.

Abstract: The invention relates to a displaceable winch device having an external frame, a winch and a control cabin mounted inside said frame, transmission means coupled with said winch for driving the cable drum from a driving engine, for example, a Diesel engine, said frame having the dimensions and characteristics of a standardized transport container, in which the winch, the control-cabin and the driving engine are accommodated.

Abstract: A hoisting winch for cranes or the like having a power transmission system assembled in a final reduction drive of the winch and arranged such that arresting of the whole planetary gear set meshing with a ring gear connected to a spooling drum and releasing of the arrest can be effected by arresting a carrier and by releasing the arrest and that a rotary drive power from an input shaft is transmitted to the spooling drum when the carrier is held against rotation, brake means adapted to be spring applied and hydraulically released with its control circuit to arrest or release the carrier, and an adjustable pressure reducing valve provided in the control circuit for adjusting and controlling a braking force of the brake means.

Abstract: A pulley or sheave that is lagged with rubber or rubber-like material, has two disc-like members which are disposed broadside to each other and secured together to form an annular groove for receiving and guiding a strand of material. At their centers, the members have bearing means to accommodate a spindle. In the annular groove for the strand of material the members have oppositely disposed wall portions characterized by re-entrant side walls. A wear strip of relatively soft, resilient material such as rubber having an elongated rib occupies the annular groove, the rib being accommodated in and frictionally seized by the reentrant side walls. The wear strip has abutted ends, and presents an annular exterior space for engagement with the strand of material that is being handled.

Abstract: A removeable base plate accessory member for the support jack leg on a trailer hitch providing a flat base stand for a trailer when the trailer is being parked and left in a particular area. The base plate member is easily attachable to or detachable from the support leg and may be adjusted to vary the relative height or distance between the accessory's base plate and its attachment connector leg used to attach the base plate to the support leg of the standard type jack found on most trailer hitches. The preferred connector (FIGS. 2 and 3) includes a pipe section with a bottom plate welded to it with a centrally located opening with a nut welded to the bottom plate, with the base plate member having a vertically extending centrally located threaded stud threadably engaging the nut.

Abstract: A safety shield for containing and deflecting a fluid leaking from a flanged pipe coupling in the form of an arcuate strip of transparent fluoropolymer. The strip has a flange along each circumferential edge which is integral with the strip and extends radially inwardly thereof. The strip is of sufficient length to encase the circumference of the pipe coupling flange to which it is applied with the opposing ends overlapping and fastened together. The flanges closely engage the radial surfaces of the coupling flanges. The safety shield is obtained by heat-shrinking a heat-shrinkable tube of fluoropolymer while restricting radial shrinkage thereof except the marginal edge portions which become the flanges.

Abstract: A pipe cutting machine capable of cutting saddles and mitres and combinations of saddles and mitres is disclosed. The machine uses the rotation of the pipe itself to power a cam drive assembly. The cam drive assembly powers a saddle cam and a mitre cam. The saddle cam and the mitre cam may be set such that a specific mitre cut, saddle cut, or combination of saddle and mitre cut may be accomplished. A cable assembly translates the rotation of the saddle and mitre cams to a torch carriage. The torch carriage in turn translates its movement concurrently to the torch itself, thereby cutting the exact saddle, mitre, or combination of saddle and mitre cut desired.

Abstract: Helical coil springs for use in such active load supporting functions as railway car trucks, require end forming such that tapered ends are provided which fit flat against the surfaces to be resiliently supported. A process and an apparatus for forming such spring ends by flame cutting is provided.

Abstract: An improved apparatus for recovering silver from a silver-containing solution. The device includes a container having influent and effluent passageways and a filler element composed of a metal above silver in the electromotive force series. The filler is disposed about an elongated core having an aperture in the side thereof. The filler may be formed of steel wire wound in the fashion of a spool about the core. One or more baffles may be situated within the filler to extend the length of the path taken by fluid flowing from the influent passageway through the filler to the core and then through the effluent passageway. Solution flowing through the filler reacts therewith so that silver is deposited within the container. An opening may be provided in the top of the container to permit viewing of the contents to determine whether the capacity of the container has been exhausted or whether the device is operating properly.

Abstract: The furnace effects a partial heat-treatment of drills and similar tools having a clamping portion and a working portion and with respect to which it is important to subjecting only the working portion, to a heat treatment, particularly hardening. The physical properties of the clamping portion are, retained essentially in their original state during the heat treatment. The furnace is provided with a tool receiver that cooperates with hearth-bottom plates that are traversed by cooling fluid. The tool receiver assures that the drills or other similar tools are maintained in their clamping portion at substantially the same temperature level during the heat treatment while the working portion of the tools is freely exposed to the heating and quenching.

Abstract: A method of annealing the flanges of double seamed end panels to obtain an effective seal and apparatus therefor.

Abstract: A blast furnace trough and liner for transferring molten metal from a blast furnace or the like to a hot metal runner or the like comprises a metal trough with an expendable one-piece prefabricated liner therein, the liner being formed of refractory based materials in several layers of different densities coalesced by physical force in the form of vibratory motion applied thereto.

Abstract: To support and guide a sub-lance for a metallurgical furnace, a sub-lance carriage 3 and sub-lance guide 4 run on a track 1. The guide 4 is below the carriage and moves in dependence on the carriage movement for part of the carriage travel. To provide a simple means for control of the movement of the guide, the guide is suspended by a support 6, such as a cable, the top end of which engages the carriage but is caught by fixed stops 8 when the carriage moves below a certain point. The cable 6 is housed within a tubular guide 5 over part of its length.

Abstract: The device comprises a container defining an inlet opening, an input area in alignment with the inlet opening and a stacking area adjoining the input area. A feeding mechanism, such as two pairs of worm conveyors, a pair of frictional rollers, a conveyor belt, a vane shaft and the like, is arranged in the input area near the inlet opening to transfer a print at an accelerated speed from the inlet area into the stacking area.

Abstract: A system converts the timing, spacing and orientation of newspapers from a high speed rotary press to conform with the precision spacing and speed requirements of subsequent on-line paper processing equipment such as inserters, addressers, counters and bundlers. The critical precision timing feature provides a rotary member and belt meeting tangentially in a converging path into which papers from the press are fed. They are stopped at spaced index notches in the rotary member for precise spacing between papers, which are released for conveyance at the closely controlled belt-rotary member speed. Conveyance through the belt-rotary member over an arc distance in friction contact assures that they are started along a continuous synchronized on-line transport path with the precise control of spacing and movement required by the on-line processing equipment.

Abstract: A three direction changeable device comprises first forks and second forks. The first forks are disposed to selectively obstruct the movement of bank notes in a first direction. The second forks are disposed to selectively obstruct the movement of bank notes in a second direction. Each first fork is associated with a second fork and is disposed adjacent thereto to define therebetween a path for bank notes in a third direction when the first forks and second forks obstruct the movement of the bank notes in the first and second directions, respectively.

Abstract: Exercising apparatus for simulating the characteristics of exercise during actual riding of a bicycle comprising a stationary frame for mounting components of a bicycle or the like including at least a frame, a seat, handle bars and a front wheel fork, a rear wheel, crank arms and pedals, and a pedal operated drive system; a driven wheel for frictionally engaging the rear wheel for rotation by the rear wheel to simulate engagement with the ground during the actual riding of a bicycle; a fly wheel operatively connected to said driven wheel for energy storage during rotation of the rear wheel to simulate momentum during actual riding of a bicycle; and load applying resistance operatively connected to said driven wheel in the form of either a cage fan unit or a centrifugal control device for applying variable loads to said driven wheel to simulate variations in load encountered during actual riding of a bicycle.

Abstract: An exercising machine including a vertically disposed framework defined by a pair of parallel, vertical, channel-shaped side members interconnected at their top by a top connecting member and having stabilizing supporting feet extending horizontally at their lower ends. The side members support independent slides in the form of inner channels having an inwardly extending arm and an upwardly extending peg thereon for receiving a desired number of barbell weights with a cable and pulley system being associated with the slides to enable independent vertical movement of the slides by pulling downwardly on independent handles or pulling upwardly on independent handles depending upon the manner in which the cable and pulley systems are associated. A locking bar is provided to selectively interconnect the arms on the two slides together with a central pulley system and cable system enabling the two slides and the weights thereon to be lifted by a single cable.

Abstract: An exerciser which includes a belt shaped for encircling the waist of a user, and attachment thereabout in a selected orientation. A flexible line with handles attached to opposite ends is slidingly connected with the belt for longitudinal, reciprocating motion of the flexible line with respect to the belt. While jogging, the user can simultaneously exercise his upper body muscles by grasping the handles in opposite hands, and alternately pushing one handle forwardly, while simultaneously resisting rearward movement of the other handle, thereby isometrically exercising the user's arm and upper body muscles.

Abstract: A leg exercising device having a general frame having an L-shaped seat for supporting the body and a pair of leg gripping frames pivotally secured to the general frame such that the axis of rotation of the leg gripping frames are aligned with the pivot point of the knee of the user. The leg gripping frames have resilient pads which allow the leg to pass therethrough such that the leg is padded from the frame as it moves in both directions. A power cylinder is pivotally secured between the general frame and each of the leg gripping frames about the axis of rotation in both directions. Each of the leg gripping frames may be moved independently of each other.

Abstract: In a movable basketball hoop structure, a detent of the lock mechanism rides along a rail in the unlocked position to retard the pivotal motion of the hoop. The rail also forms part of the return assembly and the compression elements of the return mechanism is interconnected to the detent to bias the detent against the rail in the locked and unlocked positions.