Abstract: A method and apparatus for expanding in compression a portion of a plate fin heat exchanger up to a tube sheet and then gripping the expanded portion of the tube end to expand the remainder of the tube in tension and then unclamping and belling the end of the tube at a single station.

Abstract: The invention provides a tool for removing a lance or indentation in the retainer of the planetary of an automatic transmission and for forming a lance in the retainer after replacement of friction or steel plates. The tool includes a circular base having a raised curved exterior section and a raised curved interior section spaced apart by a gap. The interior section has an indentation in the outer wall. A first insert fits within the gap having a curved front wall facing the interior section and also having the same curvature thereof. A second insert is fittable within the gap having a protrusion capable of registering with the indentation. Means for exerting inward compression between the first and second inserts against the interior section are provided to remove a lance, in the case of the first insert, or to form a lance in the case of the second insert.

Abstract: A tool for removing hinge pins from aircraft. The tool head includes a lower member having an opening adapted for the receipt of a bent end of a hinge pin. An upper member is attached to the lower member so that it may pivot to cover and uncover the opening, thus securely locking the hinge pin in the tool head. The hinge pin rests in a groove in the lower member to properly position the pin in the tool head. The upper member is locked into position over the opening by tightening a wingnut on a threaded post against the upper member. A cutout section in the upper member provides clearance for the threaded post. The tool head may be mounted on the end of a slide hammer. The slide hammer shaft is threaded, allowing a drill chuck or other heads to be attached as the head of the slide hammer for hinge pins without bent ends.

Abstract: A header has three throughpins supported by glass insulating regions in the header wall having inside and outside portions. A releasable terminal formed with a central opening is soldered to each inside portion of a throughpin and is formed with a groove that carries a lock washer or C-clip that stops a spring in compression stopped at the other end by an epoxy layer adjacent to the inside of the header wall. The assembly is formed by inserting throughpins through the openings, baking the glass insulators at 2000.degree. F., cooling this assembly, soldering the releasable pins to the inside portions at a temperature of substantially 700.degree. F. and allowed to cool. The epoxy layer is then applied at a temperature of the order of 500.degree. F. and then allowed to cool.

Abstract: A pair of fingers are operated by air cylinders at different rates in accordance with a given wiring function. In one function, one finger engages, supports and aligns an IDT at low pressure prior to insertion of the wire by the other finger at high pressure. The opening and closing of the fingers is also at high pressure. The closing of the fingers captivates the wire in alignment therewith as the tool travels from terminal to terminal. The wire is severed from the last terminal in the wiring sequence by an air operated knife. The tool is adapted to be connected to a robotic arm.

Abstract: A system for marking and identifying objects, particularly work implements such as tools and work piece holders required in manufacturing processes, which has modules (4) with electronically readable markings, which modules (4) are to be arranged on the objects (1) to be marked, as well as an evaluating device having at least one pick-up capable of reading the markings. Each module contains at least one oscillating circuit (5, 6, 7) to produce a characteristic resonant frequency or resonant frequency combination. The number of different resonant frequencies or resonant frequency combinations provided corresponds to the number of different elements in the selected characterizing code, and the resonant frequency or resonant frequency combination of each module (4) is selected according to one of these frequencies or frequency combinations.

Abstract: A contact and interconnect for an MOS VLSI semiconductor device employs a contact hole in an insulator coating; the contact hole has vertical instead of sloped sidewalls. A first metallization is applied by CVD so that the sidewalls will be coated to a uniform thickness, then this first metal is anisotropically etched to leave metal sidewalls. A second metallization is applied by sputtering or evaporation, which provides a more dense and electromigration-resistant coating. A refractory metal layer may be interposed between the metallization and the silicon substrate, and also between the metal interconnect and the insulator, since the insulator usually contains phosphorus.

Abstract: An improved power-switching relay especially designed for mounting on printed circuit boards together with a method for manufacturing such a relay. The relay includes a number of features designed to properly position the various relay components relative to one another and to help ensure that they remain in the proper position at all times. To this end, the relay includes a unitary bobbin (22) and stationary contact support header (33) together with means (64) for firmly retaining the stationary contacts (34, 36) and their terminals (63, 73) in place in the header. The relay also provides means to prevent rotation of the armature relative to the movable contact assembly (53, 54) and to prevent rotation of the coil assembly relative to the frame (35). According to a further aspect of the invention, the core and coil assembly is attached to the relay frame by extending the core through the coil assembly and press-fitting the core into an extruded hole (14) in the frame.

Abstract: A method for preparing a cathode material is provided. An insertion compound is ground until small particles of the insertion compound are formed. The insertion compound particles are encapsulated in an electronic and ionic conducting polymer to form the cathode material by using a spray dryer.

Abstract: A contact press tool and electric connector is provided and consists of a modified pip-rivet gun and modified butt connector. The connector has a hole in the center through which a rod on a press member is inserted. The rod is subsequently passed through an anvil mounted on the gun and then into the cylinder of the pop-rivet gun. When the pop-rivet gun is activated the connector is compressed between the anvil and press member affecting the securing of wires in the connector.

Abstract: Machine for tipping by pressing cable leads (KE) with end sleeves (AD) or other similar connection elements with a female connector, which may be clamped, respectively pressed, closed or opened at the surface of the envelope, particularly crimp contact elements; the machine comprises a container for storing conductor end sleeves, a supply unit (200) for supplying the conductor end sleeves, which supply unit is provided with a conductor end sleeve unpairing unit (203) for unpairing the conductor end sleeves (A) or similar connection elements received from the storage container, a cable conductor insertion unit (20) and a clamping-fitting unit.

Abstract: The present system for joining tape leaders is comprised of an elongated member which has a finger like protrusion and a cam protrusion both of which are disposed close to one end thereof. The elongated member has an elongated slot at one end which fits over a stud and is further rotationally coupled to a crank so that the elongated member can pivot around said stud in a number of different positions in response to the crank being moved. The crank is rotationally coupled to a cam follower and the crank is further arranged to rotate about a stud.

Abstract: The present invention relates to method and apparatus for forming a thick film circuit by discharging a thick film paste from a paste discharging hole of a drawing nozzle and drawing a desired pattern on a substrate. The paste discharging hole has a substantially wide configuration and the drawing nozzle is rotated about its axis of rotation so that the longitudinal direction of the elongated cross-section of the paste discharging hole is substantially normal to the direction in which the drawing nozzle is moved with respect to the substrate.

Abstract: A method for producing a universal printed circuit board blank and the resulting universal printed circuit board blank are described. An array of pads and traces are printed on the surface of the board. The traces electrically interconnect evey pad to every other pad. Subsequent processing steps remove selected traces so that only certain particular pads remain connected to certain other pads as required by the circuit design, functioning and layout of the electronic components intended for use with the board.

Abstract: The process comprises creating two conductor strips provided with end pieces whose external parts are bent on one and the same side, welding the electric-electronic components to the bent parts of corresponding end pieces, making a mold, inserting into the mold the unit constituted by the strips and the components, pouring liquid sealant into the mold in such a way as to cover the components but not the strips, with this condition being maintained until the sealant has set, separating the mold from the one piece block of sealant in which the components are dipped and from which project, at least partially, end pieces, removing the strips from the corresponding end pieces in order to define with these, the electrical terminations of the components, bending the terminations against the longitudinal sides of the one piece block and cutting the block along crosswise planes that do not effect the components.

Abstract: A flexible blade contour razor system is provided for shaving rounded or variably contoured shaving surfaces. The system includes a long, flexible blade carried by a plurality of blade-holder housings. Said blade-holder housings are connected by connecting means such as ribs, resilient foam, soft rubber or spring means to a handle.Hinges generally connect each blade-holder housing to an adjacent blade-holder housing.Said flexible blade contour razor system is adapted to flex during any single shaving stroke in order to conform to and closely shave any contoured surface of the body. Thus, a uniform, very wide, unbroken shaving swatch is achieved.

Abstract: A razor blade edge tip has a cross-sectional shape defined, over up to 40 .mu.m from the extreme edge by the equation w=ad.sup.n, in which w is the tip chord thickness in .mu.m at a distance d from the extreme edge; a is factor of proportionality not greater than 0.8, and n is an exponent having a value in the range 0.65 to 0.75.This results in a tip shape which is relatively thick very close to the edge but whose overall cross-section is narrow, compared with known tip shapes.

Abstract: An archery bow sight adapted for tree stand use and of the type which includes a pendulum-like element which is pivotal about a support shaft in response to changes in bow attitude, including angular disposition of the bow. The bow sight is characterized in that there is provided a motion-damping assembly for reducing the time duration of oscillation of the pendulum-like or pendulous element and the sight connected thereto as the pendant body seeks a stable rest position correlated with a given elected and selectable bow orientation. The desired damping may be achieved by any of several types of effective mechanisms and techniques including a damping arm or vane impeded by a fluid medium, magnetic friction forces, and dash pot arrangements.

Abstract: A device that may be of different shapes and sizes to function as a level that emits an audio and visual signal when the device is level or parallel with gravity. It will also emit the same signals when the level is put in a vertical position and the device is plumb in one dimension; while at the same time will emit a different audio and visual signal when the level is moved and the bubble or amalgam will flow to the center of the other glass tube thus indicating that the other plane is level. In essence, both sets of signals will activate when the level is in true vertical position. The audio and visual signals are activated by D.C. current supplied by a dry cell battery. The liquid leveling agent is a drop of amalgam enclosed in a glass tube that is embedded in the body of the level.

Abstract: A navigational instrument for measuring bearings and distances on maps comprising a first leg and a second leg. Each leg is transparent in part for convenient use while reading a map. Each leg, additionally, is tapered toward a lower end, defining a tip at each lower end. The first leg has an opening defining a channel for receiving a writing instrument which selectively can be positioned with the tip extending through the opening for writing or with the end opposite the tip protruding through the opening for storing the writing instrument. The first and second legs are pivotally coupled in the vicinity of the legs' upper ends and have a plurality of scales disposed about the pivotal coupling. One scale is used for measuring bearing. A second scale is used for measuring nautical miles on a Sectional Chart. A third scale is used for measuring nautical miles on a WAC chart.

Abstract: The sensing head of a measuring machine is pendulously suspended via self-centering ball-and-socket structure which affords resilient dislocating relief from its normal precisely centered position of measurement. The resilient connection permits feeedom for such dislocation for all possible directions in spaces, while effectively anchoring the head against torsional deflection about the vertical axis. Once the collision condition is removed, the self-centering suspension assures resumed precision of the at-rest condition in which measurements can be made.

Abstract: A remote center compliance system for compliantly connecting a robot support arm interface to an operator device interface comprises at least three gas-tight spring bellows interconnecting the interfaces and a connection means for connecting the interiors of the bellows in common to an external variable pressure source. The compliance of the system, both rotational and lateral, may be controlled by the applied pressure. The bellows may also be evacuated so that their resultant collapse locks the support structure and operator device together.

Abstract: A machine for the manufacture of gelatin pharmaceutical capsules is disclosed, in which microwave drying is used. The drying section of the machine has two upper tunnels and two corresponding return tunnels beneath them, through which pin bars carrying the hot moist gelatin capsule halves pass. Microwave transmitters are positioned above the upper tunnels to transmit microwave energy towards the capsule halves for drying. Inlet ducts along the outer sides of the upper tunnels supply cool, dry air which flows through apertures in the tunnel side walls and across the tunnels to an exhaust duct. The return tunnels also have a conditioned air system, supplied through ducts above the return tunnels having apertured bottom plates, for fine tuning the temperature and moisture content of the capsules prior to final processing operations.

Abstract: An automatic clothes dryer includes a lint screen mounted within a lint screen assembly to filter lint entrained in an air flow stream during the drying operation. The lint screen assembly includes a shaped housing spaced close to the peripheral edges of the screen's lint collecting surface, yet spaced further from the screen's midportion to enable quantities of lint to accumulate on the screen and still be removed from the dryer without the risk of the lint falling from the lint screen. The lint screen assembly is held within the dryer only by a pair of fastening screws.

Abstract: The boot is composed of a lower shell (1), on which an upper (2) is articulated about a pivot axis (5) coinciding at least approximately with the joint of the foot. The shell (1) has on the outside, at the rear, a rounded portion (12), the radius of curvature of which is centered on the pivot axis, (5), to allow the upper (2) to tilt to the rear. Means, such as ribs (17), are provided inside the part (11) of the shell in order to limit the space intended for receiving the skier's heel.

Abstract: A snowshoe having a flexible framework demountably engaged in a fabric shell. The individual elements of the framework are rigid but are releasably joined together through rotatable joints so as to provide the flexible framework. The fabric shell forms the deck for the snowshoe and holds the various rigid elements together into the flexible framework. A shoe clamp on the top surface of the fabric deck is mounted to a cleat on the bottom surface of the fabric deck.

Abstract: A snowshoe is provided with a transverse steel cable that engages the opposite longitudinal side members of its frame structure. A harness secured to this cable consists of two jaw members which are pivotally connected to one another at one end thereof and cooperate to clamp the edge of the front sole portion of a user's boot. A rubber strap is attached at its opposite ends to one of the jaw members for further securing the boot to the harness. The decking of the snowshoe has an opening to allow the pivotal movement of the front portion of the boot during use. The jaw members have finger-engaging portions to facilitate the mounting and dismounting of a boot to and from the harness.

Abstract: An improved torsional limiting device and associated control system are incorporated in a large scale trencher between the power source and the cutting wheel to provide for protection of the equipment components in the event the cutting wheel encounters unforeseen obstructions. The control system provides for prompt and variable adjustment by the operator of the amount of torque transmitted to downstream components and also provides for the prompt and easy resumption of the trenching operation after an obstruction has been encountered.

Abstract: Modifications are provided in the structure of firearms such as breech-loading revolver handguns. Traditionally, these firearms are constructed with mating surfaces in face to face contact, which surfaces must be separated for loading. Where foreign particles are trapped between the flat mating surfaces on closing, jamming results. In one aspect of the invention, these flat mating surfaces are provided with cavities, so that any such foreign matter will fall into the cavities and not prevent the closing of the firearm mechanism after loading. In another aspect of the invention, a series of small vee-type notches, discernible by touch, are formed around the rear edge of a rotary magazine of cartridge cylinder, in a descending sequence in direction opposite to the operative direction of rotation of the rotary magazine when in battery.

Abstract: A charger for loading cartridges into a shotgun tubular magazine comprises:a housing that houses a column of cartridges;a keeper for releasably keeping the housed cartridges in the housing;a bias spring under an elevatable floor on which the housed cartridges can ride out;and an ejector 31 for ejecting from the housing successive cartridges into the housing.The ejecting cartridges thereby become oriented relative to the magazine. The charger can be adapted to be manually mounted or fixedly mounted to the shotgun.

Abstract: A gaff hook includes a rod member with a pointed hook part and a shank part terminating in a top end. A first collar is fixed coaxially to the shank part near the top end, and a second collar has an axial bore which recieves a top end portion of the shank part to allow rotational movement of the second collar relative to the shank part. The first and the second collars have engaging surfaces facing one another which surfaces are urged into frictional engagement by a bias mechanism to prevent free rotation of the second collar about the shank part. A gaff handle with a bottom opening for accommodating the top end portion of the shank part is fixed to the second collar.

Abstract: A sling attachment assembly for a diving spear of the type having an elongate shaft with a front end and a rear end and a sling for thrusting said shaft attached to said rear end of said shaft and being constructed of resilient tubing having an elongate central cavity and a first end and a second end, comprising threaded bore means in a terminal end portion of said rear end of said elongate shaft; a wire member having a first leg portion, a second leg portion, and a bend portion connecting said leg portions, each said leg portion engaging a surface portion of said threaded bore means, said bend portion being positioned rearwardly of said threaded bore portion; sealing matrix means positioned in said threaded bore means in sealing engagement with said leg portions of said wire member positioned in said threaded bore means, whereby said wire member is fixedly held in said threaded bore means and whereby said sealing matrix means, said wire member leg portions and bend portion, and said terminal end of said shaf

Abstract: A small animal trap comprises a frame having an entrance and an exit, and a readily detachable means for retaining a spring actuated animal grasping device therein.

Abstract: A composition particularly adapted for use as a growing medium for grass. The composition, which includes prescribed proportions of water-absorptive wood fiber and non-water-absorptive cellulose particles (preferably rice hulls), is convenient to use and holds vast quantities of water for nourishing the germinating and growing grass plants. The composition's consistency inhibits its formation into an air-impervious sheet, which otherwise could reduce its effectiveness. In addition, when allowed to dry, the composition is extremely light in weight, which makes it easier to handle during harvesting and relatively inexpensive to transport.

Abstract: A weather strip construction for windows and doors having in combination leaf and compression dual durometer type sealing elements which co-act to accommodate sliding and meeting engagements of surfaces for effective weather sealing.

Abstract: Abrasive grinding apparatus wherein abrasive heads rotate about axes inclined at forty-five degrees to the longitudinal axis of a parts conveyor mat and in orthogonal relation to one another. Watering tracks positioned in overlying axially parallel relation to the abrasive heads and in transverse relation at the end and beneath the conveyor mat wash the exiting parts and the conveyor mat. Parts engaging pressing members comprised of a plurality of spring biased support frames each bearing a rotative, longitudinally displaced belt and having beveled sides adjacent the abrasive heads guide and maintain the parts in contact with the conveyor mat as they are transferred to and from the abrasive heads.

Abstract: A fixture for dressing the polishing surfaces of a platen to maintain it in a planar condition, including a flexible carrier which is adapted to be rotated independently of the rotation of the surface to be dressed, with the carrier providing an opening for the placement therein of a dressing pad. About the edges of the opening there are provided a plurality of driving keys which will engage appropriate edge surfaces of the dressing pad for effecting rotation of the dressing pad with the flexible carrier relative to the surface to be dressed.

Abstract: A device for cleaning abrasive surfaces used in wood sanding operations includes a frame attached to the frame of a belt sanding machine. A retainer assembly is carried by the frame and receives a block of natural or synthetic rubber cleaning material. The retainer assembly and associated block are selectively moved into position whereby abrasive contact of the block with a running belt for cleaning is achieved. The movement of the cartridge assembly is controlled by a fluid cylinder arrangement. Hydraulic withdrawal cylinders at either end of the frame are set to lift the cartridge assembly and block in an upward direction out of a contact position with the sanding belt. A central fluid projection cylinder is used to overcome the upward force of the two outer cylinders, for forcing the block into operative contact with the belt when desired. Controls are provided for regulating contact time with the belt depending on operating conditions.

Abstract: A drum sander (10) for woodworking which may be used in combination with a radial arm saw (25). The drum sander (10) includes a horizontal, rotatable sanding cylinder (31) which is supported above a work table (20). The wood (not shown) to be sanded is inserted beneath the sanding cylinder (31) on top of the work table (22). The sanding cylinder is supported, in two different embodiments, by either one (17) or two (17 and 55) vertical supports. The sanding cylinder (31) is also supported, in two different embodiments, by either a horizontal carriage arm (11) or a carrier bracket (52). The drum sander (10) also includes a slide fastener (34) which attaches the sandpaper strips (60) onto the sanding cylinder (31). Also disclosed is a removable dust collector (16) which covers the upper portion of the sanding cylinder (31) and is connected to the hose (49) of a vacuum.

Abstract: A tool for sanding, grinding, or polishing ferrous or non-ferrous work pieces which includes a plurality of abrasive particles, such as silica sand or the like, embedded in a binder matrix formed primarily of polytetrafluoroethylene and equivalent polymers. The matrix may further include a stiffening agent for adding rigidity to the tool, such as ground glass.

Abstract: An apparatus that abrades the edges of contact lenses. The device has a cone-shaped body portion which has an axis of rotation that coincides with the axis of symmetry of a cone. The body portion is fixedly secured to a spindle member that is engaged by a machine and rotated at high speeds. Annular grooves of differing widths and with differing radii of curvature are formed in the body portion; a polishing compound is deposited into the bottom of a groove to be used and a lens edge is introduced into the groove while the spindle and hence the body portion of the device are rotating. The angle of taper of a particular device corresponds to the dioptric power of the lens to be abraded by it. Accordingly, a cone-shaped member intended to abrade the edges of a lens of high dioptric power will have a higher degree of taper than another device intended to abrade the edges of a lens of low dioptric power.

Abstract: Cord useful in the reinforcement of pneumatic tires is provided that is less expensive than conventional cord used for that purpose. A typical cord consists of a core composed of two continuous filament nylon yarns having little or no twist, laid side-by-side and held together by another continuous filament nylon yarn wound helically around the two core yarns.

Abstract: An improved suspended ceiling of the type having ceiling panels resting on a support framework employs shape-memorizing metal alloy members to hold the panel in place on the framework in the event of fire and causing the panels to rest freely on the framework at normal temperatures to enable the panels to be easily removed or pushed up for access to the space above the panels. At a critical temperature, the memory members revert to their memorized shape and in so doing cause retention members to move and extend over the panels to hold those panels in place.

Abstract: Theater stage according to the invention consisting of three bodies which, in a deployed position, confer a pavilion or shell shape. The central body, built on the chassis, consists of a central floor, raised platforms, side walls and a roof. The rear body, in the form of a box is built on a high floor which slides over the central floor and the platforms. The front body consists of a lifting canopy and of several floors: a sliding low floor which may comprise a higher level and two side floors in the form of pivoting quarters which hold up the low floor and which fold back between the said low floor and the chassis.

Abstract: A method for installing drop ceiling tiles close to a ceiling is provided and consists of attaching a plurality of grid clip holders to the ceiling, inserting a plurality of T-clips into the grid clip holders, inserting a plurality of main T-members into the T-clips and placing a plurality of ceiling tiles into the main T-members so that the ceiling tiles are close to the ceiling.

Abstract: An improved dome-type structure having a plurality of load bearing rib elements extending upwards from a base and meeting at a common vertex, a roof deck extending over and supported by these rib elements and vertical side panels are all disposed so as to form an enclosure. The improvement comprises using components for forming the roof deck which are generally trapezoidal and rectangular in shape. The structure is assembled with the interconnection of the trapezoidal and rectangular-shaped components with and without structural ribs which are of inverted T-shape in cross-section. A water trap is provided at one or more places around the base of the structure, and, in locations where there is a scarcity of water, an underground reservoir is provided beneath the structure. The arrangement provides protection against earthquakes and earth tremors.The invention also contemplates the transportation of a complete shell unit under its own power by air lift.

Abstract: The present invention is directed to an insulated building construction which includes panels having interior and exterior skins with an insulating core therebetween. Additionally, the bearing posts between panels have interior and exterior support members with an insulating layer therebetween. A mechanism for maintaining a thermal barrier around corners as well as between walls and roof is disclosed. All panels have standardized passageways which mate with one another to provide an efficient way of routing electrical wiring. A building in accordance with this invention may be constructed to be completely surrounded by appropriate insulating material thereby minimizing "thermal shorts".

Abstract: This invention is directed to a novel hybrid type swimming pool for personal use which is well suited to the confined spaces of private yards and well adjusted to varying land contours, and the unique construction is specifically adapted to take advantage of semi in the ground placement of the pool so that the base or the lower portion of the pool where the hydrostatic pressure is the greatest is supported by the ground itself. The top of the pool is framed to provide strength against different pool stresses. Thus the novel construction technique for the first time permits low cost construction of an exercise pool, a facility needed by a large portion of the population at a price affordable to them.

Abstract: Elbows in tubular blanks which are filled with a desiccant are formed by clamping a blank at one side of the intended locus of the elbow, by bending the blank at the other side of the intended locus of the elbow relative to the clamped portion of the blank, by propping the blank in the region of the inner wall of the developing elbow, and by plasticizing the material of the blank in the region of the outer wall of the developing elbow so that the material of such outer wall is less likely to exhibit cracks and/or to burst as a result of bending of the blank.

Abstract: An improved frame assembly for doors, windows and the like is disclosed. A frame receives a central panel which defines an edge about its exterior perimeter. The frame comprises a first and second skins in opposed relationship defining a cavity therebetween. The interior edge of the frame has internal support ribs which act in conjunction with the interior edge of the frame to grip the edge of the central panel while the exterior edges of the skins are separated by a sizable insert. The cavity between the skins is filled with a foamable insulating material which surrounds the edge of the central panel and forms a weathertight seal.