Abstract: There is described a method of soft soldering aluminium or alloys thereof using a fluxed solder composition. The fluxed solder composition comprises a soldering flux suitable for use in soft soldering aluminium and its alloys and a soft solder alloy of lead, tin and silver and, optionally, up to 3% copper. The composition of the soft solder alloy is such that it contains at least 35% lead and 10% tin, and x% silver wherein x=0.1+(5.times.10.sup.-4)(Sn).sup.2 +(1.times.10.sup.-5)(Sn).sup.3, (Sn) being the percentage by weight of tin in the alloy.

Abstract: A large box of sufficient size to carry a coat is cut and folded with the use of a conventionally sized standard die from a single piece of sheet-form material and has side panel structures formed by having an exterior side panel, an integral hinge, and an interior side panel with latching tabs to interlock with the bottom of the box. The exterior and interior side panels have a reduced total height due to the hinged side panels being formed with a bias cut so as to reduce the effective height of the panels to be less than the total height of the completed box while still providing closure integrity and structural stability.

Abstract: Steam trap unit for a steam system including a casing having an inlet for receiving steam and condensate and an outlet for discharging condensate, a valve at the outlet, an actuator within the casing connected to the valve to open the valve for discharging of condensate and to close the valve for preventing the discharge of steam, and a diverter at the inlet diverting the incoming flow of steam and condensate from direct impingement on the actuator thereby preventing noisy rapid and premature valve closing action.

Abstract: Power generating plants discharge steam or hot water typically from a steam turbine to a condenser system for the purpose of cooling the discharged fluid prior to its being recirculated. The condenser system receives water from an ambient source pumped using a circulating water pump, said water being elevated to a temperature on the order of 115.degree. F. to 125.degree. F. upon passing through the condenser system. The condenser system can operate in basically two different states to provide either single pressure, single pass condenser operation when the waste hot water is discharged to the source and not used, or multi-pressure, multi-pass condenser operation to maintain an elevated hot water supply that is fed to a load (utilization equipment). Valve controls are provided for enabling serial-to-parallel and, vice versa, switching between modes of operation without difficulties and with only a slight drop in load during the transition.

Abstract: The cowl of a spike nozzle is attached to the inside of the aft closure of a rocket case by means that allow it to rotate about a fixed point. Fluid-operated actuators mounted in the aft closure bear against the cowl to effect changes in the direction of thrust. Optionally, the spike may be attached to its cowl by fluid-operated actuators to modulate thrust.

Abstract: An expandable syringe comprising a bag having an opening through which liquid may pass. A closed end tubular valve stem projects outwardly from the bag opening and has an orifice in the side thereof in fluid communication with the interior of the bag. A nozzle has a female coupler sized to be movably mounted about the valve stem. The nozzle coupler has a valve seat against which the valve stem closed end may operationally engage in controlling the flow of liquid between the bag and nozzle. The bag may comprise a corrugated container or a shell having first and second openings and flexible pocket mounted to the shell sealing the first opening and sized for maneveur into and out of the shell through the first opening to displace liquid out of the shell. A nozzle or sprinkler cap may be detachably mounted to the shell over the second opening.

Abstract: A spray nozzle having a brass housing and a urethane insert that is relatively resistant to wear by contact with the flow of irrigation water. The insert protects the more costly housing from erosion and is easily replaced if it becomes worn or if it is necessary to change the spray pattern. The housing can form a sleeve in which the insert is slidably received so that the housing is completely insulated from contact with the water flow. In one embodiment, the insert forms a concave deflector having ridges on a surface impinged by the water so that the spray emitted consists of discrete streams for greater distance and wind resistance. The water is emitted toward the deflector through an oblong orifice for more uniform lateral water distribution.

Abstract: Wooden packing and handling units containing pieces of ferromagnetic metal, such as nails and staples, are reduced so that the metal pieces embedded in the constituent wooden portions are detached, the pieces of metal are extracted from the reduced wooden portions, preferably magnetically, and the reduced wooden portions disencumbered of the metal pieces are subjected to granulometric sorting, i.e., sorting by size. The method is carried out using a percussion crushing station, a magnetic extraction station, and a granulometric double-cut screening station.

Abstract: A mill for crushing tree trunks is disclosed which includes a rotor having a series of crushing blades disposed helically around the rotor. The rotor blades pass between axially spaced stator blades in the mill housing to crush the trunks and liberated associated foreign matter. The crushed material and liberated foreign matter is moved toward one end of the mill housing by the action of the helically disposed rotor blades where it is discharged from the mill.

Abstract: A cone crusher characterized by a frame having a completely fabricated construction, an anti-spin mechanism and an improved crusher setting indicator is disclosed. The frame of the structure, which is composed solely of pre-formed and/or forged members, includes a number of tubular members, a number of annular members and a number of ribs, all of which are welded together to provide a rigid, strong frame. The anti-spin mechanism is characterized by the use of a unidirectional valve and a spring loaded ball valve, thereby permitting the rotation of the mantle of the crusher in one direction while barring rotation of the mantle in the opposite direction unless a force exceeding a pre-selected magnitude is applied to the mantle.

Abstract: A winding apparatus including a winding roll driving a bobbin and a yarn reservoir arranged between a yarn supply point and the winding roll. The state of filling of the reservoir is monitored by a monitoring device which generates a signal for controlling the speed of the winding roll. Interposed between a driven drive shaft and the winding roll are a pair of intermediate wheels which are selectively brought into engagement with the drive shaft and the winding roll responsive to predetermined states of filling of yarn on the reservoir that is sensed by the monitoring device so as to either drive the winding roll at speed higher or lower than the delivery speed at the yarn delivery point. A brake lever is operably connected to a mechanism which supports the intermediate wheels and is brought into contact with the winding roll when both the intermediate wheels are out of engagement with the shaft and winding roll for stopping the winding roll.

Abstract: An apparatus for attachment to a recording machine of the type in which a printed record is made on a continuous strip of paper, such as a paper tape, traveling over a rotating platen wherein the tape is fed into the machine from a tape roll. The apparatus comprises a support frame having a pair of laterally spaced frame members which are interconnected in such a manner that the distance between the members may be selectively adjusted to accommodate tapes of varying widths. The frame members have spaced spindles which mount a feed roll that supplies the paper tape to the recorder machine, while a second pair of spaced spindles are carried by the frame members for rotatably mounting a take-up reel. The end of the tape passing through the recording machine is attached to the take-up reel in such a manner that the tape may be rewound thereon.

Abstract: The device compensates for the offset of a sheet element which is movably mounted on at least two parallel rollers which are alternately supply and receiving rollers. At least one (1) of these rollers is inclinable relative to the other and is controlled by means (17-20) for detecting the offset of the sheet element and acting on compensating means (3-12) which modify the angle of the inclinable roller. This device comprises an offset compensating member (3) which normally rotates with the inclinable roller when the sheet element is correctly centered. The rotation of the compensating member is temporarily interrupted and converted into a linear displacement by the action of at least one abutment (9) which is shifted by the detecting means when the latter detects an offset of the sheet element. The compensating means cooperates, in its linear displacement, with the profile of a cam (12) which modifies the position of one end of the inclinable roller and consequently the angle of the latter.

Abstract: A mechanical method of manufacturing magnetic tape cassettes, wherein the magnetic tape is loaded into the cassette during assembly of the cassette parts, and a support controllable by a mechanical conveyor system and having an intermittently rotatable winding disc for the magnetic tape.

Abstract: A fly fishing reel with a means on the shaft of the line spool between the brake disc and the clutch member, said means cooperating with the brake disc and clutch member in such a way during line pull-out and line retrieval that a click signal is produced during the rotation of the spool as the line is being pulled out but no signal appears during retrieval of the line and optionally a snapping signal is generated when the spool is driven by line pull-out.

Abstract: A kite string reel structure of such hollow internal configuration that a hand of a user may be removably disposed therein, and the hand when clenched grasping a transverse handle within the reel structure to support the latter in a desired position where the other hand of the user may be employed to wrap kite string on the reel or pay out kite string therefrom. When the reel structure is disposed in a substantially parallel direction to the kite string when a kite is being flown, the pull on the kite string will automatically cause a rapid pay out of kite string from the reel.

Abstract: A tape cassette including a cylindrical tape guide having a slit in the axial direction and a groove at the end thereof which is fitted to a projection of a pole connected to a half of the case. The cylindrical tape guide can also be provided with a first and second notch formed therein as a substitute for the groove. Moreover, a groove can be formed at each end of the cylindrical tape guide.

Abstract: This invention is an extension of my system to recover into useful work the energy normally wasted by a supersonic aircraft in its shock wave mechanism. This system utilizes the excess propulsive jet velocity in a sheet below the wing to form a planar vortex flap which acts as a pressure shield. The present improvement extends the pressure generating forward concave wing undersurface of this system into an upward reflexed aft surface so as to benefit from the increased pressure provided by the downstream upwash vortex field. This allows the aft portion of the wing to serve as the energy recovery section by achieving the pressure required for lift on the undersurface of this aft wing portion at a lesser angle with reduced drag. This stream-wise series of functions specifies the wing undersurface as concave, convex, and concave sequentially in the flow direction, thus corresponding to the upper element of a planar supersonic nozzle.

Abstract: A bias actuator, such as an extensible link, in the longitudinal cyclic pitch channel of a helicopter is provided with inputs as a function of airspeed multiplied inversely with collective pitch, and as a function of the rate of change of collective pitch stick position, so as to enforce positive angle of attack and speed stability and positive static pitch trim gradient and to decouple collective pitch from the longitudinal cyclic pitch channel at cruise airspeeds, the invention compensates, inter alia, adverse control effects of tail stabilizer surfaces at cruise speeds. A pair of indicators display bias commands and actual bias responses.

Abstract: This automatic wedging device for operating each ejector of loads carried under an aircraft for jettisoning comprises at least one actuator of the cylinder-and-piston or worm-and-wheel type adapted to transmit a wedging force to a pair of symmetrical load-engaging wedging levers, and a device for automatically operating each actuator when the load is properly positioned in relation to the aircraft; other devices are provided for locking the wedging levers when this force has attained a predetermined value and restoring the wedging levers to their inoperative position after the load has been jettisoned as a consequence of the opening of the load suspension hooks.

Abstract: This hoisting device for loads to be carried under aircraft is incorporated partially or completely in a load carrier system without requiring any lateral access, the connection between the hoisting device and the load being eliminated automatically once the load is properly anchored to the carrier system. The device comprises one or two ropes, as the case may be, and comprises an anchoring member rigid with the load and formed with an internal groove engageable by a set of balls carried by a socket in which an end piece crimped to the rope end is adapted to travel axially through a limited extent. Slackening the rope will free the load which is then retained by the carrier system.

Abstract: A nutation damper apparatus capable of damping small nutation angles in a satellite. A permanent magnet mounted on the free end of a pendulum arm oscillates back and forth parallel to an adjacent conductive plate in the form of a circular segment having a cross-sectional area that increases from the center to its lateral ends, and induces in the plate a magnetic flux which is proportional to the deviation angle of the pendulum from its rest position.

Abstract: An internally pressurizable expansible body is supported by an improved rd mount which minimizes stresses induced in the body due to constraining radial expansion of the body. The mount comprises a plurality of resilient members juxtaposed between the body and a fixed annulus which is capable of carrying axial, transverse and torsional loads imposed upon the body.

Abstract: A seat supported on a fixed pedestal with a mount assembly operable to permit rotational movement of the seat about an upright axis, longitudinal fore and aft movement and transverse tilt movement of the seat. The mount assembly has a base member pivotally connected to the pedestal for movement about an upright axis. A first lock pin locks the base member in a fixed forward position. When the lock pin is released the base member can rotate about a generally horizontal axis. A pair of longitudinally located track assemblies are pivotally connected to the rear portion of the base member. The forward portions of the track assemblies are held in selected elevated positions with releasable locking arms thereby changing the tilt position of the seat. The track assemblies also have movable carriages that can be locked in selected longitudinal positions to adjust the fore and aft position of the seat.

Abstract: An automobile seat position-adjusting assembly having slidably related outer and inner rails rigidly attachable respectively to a seat and automobile floor and a pawl member for selectively locking and unlocking the rails. The inner rail has a plurality of latch recesses, and the pawl member is pivoted on an edge of the outer rail and includes a tooth extending through the outer rail to selectively engage with one of the plurality of latch recesses so as to lock and unlock the slidable rails as the pawl member's handle is manually rotated. The pawl member has a curved lip hinge portion which encloses a protruding edge of the outer rail and is held in place by a spring and the interaction of the pawl and the rails.

Abstract: A foldable bearing trihedron for inner moulding surfaces comprises a triangular portal having a right leg with a horizontal beam at the upper end thereof and a diagonal stay at its lower end, right angle triangles being hinged to the horizontal beam, and the right leg having rectangles hinged thereto.

Abstract: An extraction mechanism which may be utilized for the purpose of pulling sheeting elements after they have been utilized in shoring ditches. The apparatus includes a tower which may be seated firmly on the ground and have the top end thereof positioned by means of a boom of equipment utilized in the normal trenching operation. A series of cables and pulleys are provided with there being a hydraulic cylinder for effecting the relative movement of certain of the pulleys so as to foreshorten the cable or cables and thus produce the necessary pulling effort. The system includes winding reels to take up the pulled cable slack and clamp means for preventing movement of the cable first in one direction and then the other direction in accordance with the direction of movement of the fluid cylinder.

Abstract: A tubing connection comprising an elongated opening in a first tube member and a pair of opposed slots cut in the end of a second tube forming a pair of tabs which are flattened and inserted through the elongated opening. The tabs are spread to conform with the inside contour of the first tube member and a tubular insert is press fit between the spread tabs. A perforation is punched through the first tube member at a location such that it penetrates one of the spread tabs and the tubular insert. The perforation is indented locking the tab to the first tube member to prevent rotation giving a strong rigid connection.

Abstract: A cutting torch for through cutting workpieces includes a torch stem having its cutting tip directed toward the workpiece with a shielding arrangement attached to the stem for enveloping the cutting area with a mixture of water and compressed air; separate water and air supply lines are each connected to circular canals within the shielding arrangement and nozzles are provided on the underside thereof connected via a through bore to the canals.

Abstract: Torch cutting machines of the type embodying a plurality of torches adjustably mounted with respect to a moving conveyor, such that the torches may cut the flange and central web portions of I-beams, structural members and the like. The machine is characterized by the capability of vertically and longitudinally moving the torches upon a pivoted cantilever cutting arm which extends over a cutting area. The cutting torches embody independent vertical and lateral drive means and the cutting arm while in pre-set pivoted mode may be longitudinally and independently advanced with respect to the cutting area, such that complex straight mitre cuts, compound mitre cuts, copes notches and the like may be cut without special handling.

Abstract: A rotary collator having a rotatable drum with a plurality of radially extending partitions or bins in which sheets to be collated are held by a sheet clamp mounted in each bin. The sheet clamp for each bin has a solenoid-based activating device which releases the sheet clamp during the sheet ejecting portion of the collating cycle. The sheet clamp is released a short time before the rotatable drum brings the associated bin into a sheet ejecting position. A toggle structure and a relatively high compression spring are used to hold the sheets in the bin when in clamping position. The sheet clamp of any empty bin is programmed not to release, thereby greatly reducing noise and extending the life of the mechanism.

Abstract: A record member feeding device is disclosed for feeding record members from a stack, located in a hopper having spaced-apart surfaces positioned at one end thereof defining an opening through which the record members may be fed. A vacuum-operated, solenoid-control picking member grasps one of the record members and shifts it through the opening to a position in which it is contacted by projections on a rotatable feeding element and is moved thereby into engagement with counter-rotating take away rollers which further transport it to its desired destination.

Abstract: A compensating or correcting arrangement for electronically adjusting the resetting of a paper gate device in a xerographic machine; such arrangement eliminates the problem which occurs, under certain conditions, when the trailing edge of a copy sheet is clipped by the projections or fingers controlled by the solenoid of the paper gate device. The arrangement includes a time delay circuit for delaying the application of the reset signal to the solenoid thereby extending its activation period.

Abstract: The disclosed physical conditioning apparatus makes use of standard bar bell disks. One part of the disclosed apparatus is a jump-rope. The disclosed apparatus includes a concave, rigid shell, a skull cap or webbing which is adjustable to tightly fit the user's head, a suspension for attaching the shell to the skull cap, and chin straps for securing the skull cap to the user's head. The shell is provided with a fastener for fastening bar bell disks onto its top surface. This fastener is provided with a large eye at its outer end. The shell can be stood on the floor with the flat top surface of the shell parallel to the floor. The eye of the shaft is large enough to pass the handles of the jump rope. The handles of the jump rope can be fastened together at their inner ends to form a drum on which the rope can be wound. An opening is provided in the drum part of each handle through which its associated ends of the jump rope passes when the handles are joined together.

Abstract: A portable long jump pit is disclosed which may be installed in a gymnasium, on top of a regular playing surface and used in conjunction with an elevated runway, or outdoors recessed into the ground surface such that the top is level with a runway. The pit includes a foam cushioning member which is held stationary relative the runway and a separate fabric cover over the cushioning member which is held in place by elastic cords. When the long jumper lands on this fabric member, it moves laterally on the top of the cushioning member, the elastic supports and the cushioning member absorbing the lateral momentum of the athlete. An optional enlarged landing pillow or bumper is placed at the end of the pit opposite the runway to protect the athlete from running beyond the pit surface after his jump. Numerous marking systems are disclosed for recording the landing position of the athlete.

Abstract: An Automated Goalie is disclosed which includes a frame and a goalie body fixedly mounted to the frame. A pair of arms each of which are pivotedly connected to the goalie body and are moveable between a substantially vertical lower position adjacent the goalie body and an upper position outwardly extending from the goalie body and an automating mechanism is connected to the arms to move them between the positions.

Abstract: An athletic device for restraining hand movement about the wrist which allows for variably increasing or decreasing the relative stiffness of the restraining member that is adjustably coupled to the back and side of the hand and wrist. The device is used to prevent wrist "break" or undesired hand movement during the delivery of a bowling ball. The device includes a plurality of wrist and hand embracing straps coupled to an L-shaped housing that encloses a removeable, inflatable restraint chamber that is sized to reach from the first knuckle longitudinally past the wrist. The housing includes finger engaging loops. The firmness and individual comfort of the restraint may be adjusted by controlling the volume of air (air pressure) within the support member.

Abstract: There is disclosed a hand held percussion toy comprising a pair of substantially parallel surfaces, each surface having a perimeter edge, the pair of substantially parallel surfaces being joined together by a third surface connected between the perimeter edges of the pair of parallel surfaces to form a sealed enclosure having an interior volume, the third surface having a recess therein extending into the interior volume, the recess being shaped to receive a thumb or a finger of a person for holding the percussion toy while maintaining the seal of the sealed enclosure whereby a drum-like structure is formed which produces a resonant tone when struck by another object.

Abstract: Racket with the racket head built up by crossing strings fastened to a frame, especially a tennis racket. Both the main surfaces of the racket head have a concave profile over at least a portion of each surface in at least one dimension of the racket head. The concave profile is provided by distance pieces or spaceers of different thicknesses inserted between the strings at various crossing points.

Abstract: A game for at least two players wherein one of the players manually propels a disk-shaped projectile so as to glide the projectile through one of at least three hoops positioned in a common plane and mounted between the players such that the projectile may be caught by the other of the players after the projectile has glided through one of the hoops. The support structure for the hoops may include either one or two vertically extending legs, each of which includes L-shaped brackets at its lower end which function to hold the legs in an upright position. The three hoops are so arranged that at least two hoops abut at least one other hoop and the upper end portion of the supporting structure. The hoops are mounted at a predetermined level above the playing surface, and the hoops are of different diameters to provide varying target areas. The hoops are accorded point values that decrease as the areas of the hoops are increased.

Abstract: The post is of one-piece construction and has a body portion with a plurality of legs protruding in one direction and a lug protruding in the other. The legs are adapted to be forced toward one another so that they can be inserted into the opening of a playfield board of a pinball game. When released, the legs frictionally engage the board to hold the post in place. The lug passes through a hole in a cover plate and has fastening structure to accommodate a push-type fastener.

Abstract: A velocity indicator for a swingable, striking device for indicating physically the velocity of the striking part at the time of its maximum speed, especially desirable for golf clubs. The indicator is in the form of a single unitary structure easily clamped on a club shaft or taken off without the use of any tools; said indicator being very light in weight, and leaves an indication of a previous swing to compare with a present swing. The device includes a weight member which is linearly displaced during the club swing and acts against a helical tension spring or a pair of rubber bands.

Abstract: An umbrella-type stacking spindle for a record changer with end-stop function for the playing mode. Groups of clamping and supporting levers are accommodated in a tube, and move outward in response to movement of respective clamping and control sleeves during a changing cycle. The sleeves are separately movable with respect to a single actuating rod, which is controlled by the changing device. The control sleeve is locked to the tube for a given range of movement of the actuating rod, while the end-stop function is signalled by blocking movement of the actuating arm.

Abstract: The sealing oil in a sealing device for an underwater propeller shaft as maintained at the optimum operating pressure by providing a pressure increasing device in which an oil chamber communicating with the sealing oil and a sea water chamber communicating with the sea water in the vicinity of the propeller shaft are separated by a movable member, e.g., a bellows.

Abstract: In an arrangement for feeding a fluid at a given temperature into a vessel containing fluid at a different temperature from an inlet pipe through an inlet nozzle to feedfluid distribution means in the vessel, a removable thermal isolator arrangement is provided. Spaced concentric sleeves form a series of fluid spaces which thermally insulate the inner surface of the nozzle from the feedfluid and leakage feedfluid is directed away from the nozzle whereby thermal cycling of the inner surface of the nozzle is minimized to eliminate cracking thereof.

Abstract: A sealing mechanism, comprises: a first member having a conical bore formed in coaxial relation with its own axis and a first face formed at the side thereof; a second member made of a metal and relatively rotatable with respect to the first member, the second member having a second face spaced from and opposing to the first face of the first member, and an annular groove recessed away from and opposing to the conical bore to have a bottom face and radially inner and outer faces connecting the bottom face and the second face; an annular floating seal assembly accommodated in the conical bore of the first member, the annular floating seal assembly including a metal seal ring having a lip portion extending radially outwardly and toward the annular groove, and a resilient annular ring disposed between the conical bore and the seal ring to urge the seal ring toward the annular groove; and a ring member made of a metal and provided in the annular groove to have a rear face in metal-to-metal contact with the bottom

Abstract: A chuck for handling hollow, cylindrical glass articles, such as used in solar energy installations, is disclosed wherein such glass articles generally are in the form of concentrically assembled glass tubing having a coated exterior surface. In the orientation in handling these types of glass articles, a polypropylene, integral chucking mechanism, which is adapted to be inserted within the glass article and actuated after insertion, expands to engage the interior surface of the glass article and maintains the article in a specific, desired, fixed position. The inclusion of a cone member on the chuck supporting structure and a V block guide assist in the proper alignment of the glass article relative to the clamp and its support.

Abstract: Apparatus for assisting moving of trailed vehicles such as caravans including a jockey wheel supported by an extendible stem adapted to be secured to a forward draft frame of a vehicle, the apparatus being characterized according to this invention in that there is a lever arm secured relative to the jockey wheel in such a way as to control the rotational direction of the jockey wheel and an interengaging gear assembly including a drive shaft with the lever arm arranged so that rotation of the drive shaft will effect rotation of the jockey wheel about its central axis to effect the moving of the trailed vehicle when attached thereto.

Abstract: An independent rear wheel suspension of the type including pivotal wheel control or guide members is provided with an adjusting mechanism for adjusting at least two mutually corresponding points of articulation of the wheel control members, at least one on each side of the longitudinal central plane of the vehicle, in response to varying vehicle load and/or vehicle speed such that, as seen from the rear of the vehicle, a changed direction of motion of the centers of ground contact of both wheels, i.e. a changed positional level of the roll center, results during inward and outward spring deflections in accordance with the respective load on the vehicle and/or speed of the vehicle.

Abstract: A skateboard including a brake assembly for slowing and stopping the vehicle. A pivotal member on the rear of the board is provided with a depending rubber stop for engagement with the ground surface when the member is tilted by the heel of the shoe of the skater. The member is normally maintained in a raised position by a spring hinge.