Abstract: A clamp structure with a clamping band having open ends and a mechanical interconnection of the open ends of the band that include at least two outwardly extending hooks in the inner band portion adapted to engage in apertures in the outer band portion; at least one of the hooks is a cold-deformed support hook and another one of the hooks is a generally circumferentially extending combined guide and support hook which has an inclined guide and support surface operable to initially engage with the corresponding aperture in the outer band portion so as to guide the inner and outer band portions toward one another while at the same time absorbing circumferentially directed tightening forces until the cold-deformed support hook becomes effective in also absorbing tightening forces by engagement of its abutment surface with the corresponding aperture.

Abstract: A closure device with a press release lever is disclosed. The closure device includes an elongated member having a longitudinal axis, a retaining housing at one end, a flexible middle section, and a free end portion at another end. The retaining housing has a first wall connected to the middle section, a second wall opposing the first wall, third and fourth walls opposing each other and formed integrally with the first and second walls. A lever is connected to the first wall for releasably retaining the flexible middle section. The lever includes a middle-section-engaging surface, a press-to-release-actuating end, and is biased against movement in one direction. A passage is formed in the retaining housing for receiving the free end portion and the flexible middle section. Various shapes of the flexible middle section are disclosed for releasably retaining the flexible middle section in an engaged position within the retaining housing in cooperation with the middle-section-engaging surface of the lever.

Abstract: The present invention discloses a unique, self-aligning, quick-releasing coupling system capable of releasably joining male/female items for permanent or temporary joining. One or preferably two jaw members are supported for movement between capturing and releasing positions on a support structure on a pair of cylindrical pivots connected to the structure. Tension springs carried by the capturing members and interrelated with the support structure biases the capturing members to the releasing position. A locking member including a shaft with a pair of pins capable of being rotated via the shaft in and out of a pair of recesses in the jaw members from releasing mode either respectively locks the jaw members into the capturing mode or unlocks from the jaw members in the releasing mode. The shaft is operated by a lever connected to a brass plate by an expansion spring which biases the pins via the shaft towards the locking mode.

Abstract: The cutting apparatus for cutting a moving strip of material comprises a rotating cutting cylinder having a spatially fixed nap height determining plate provided with a plurality of holes which contacts a part of the active outer circumference of the cutting cylinder. The exterior side of the plate is the bearing surface for the strip of material and the holes provide opposing cutting edges for a plurality of cutting edges of the cutting cylinder.

Abstract: A new and improved method of forming slats for window blinds and the like from a continuous web of plastic material includes a feeder for directing the web longitudinally from a roll at a selected speed rate into a heating chamber including upper and lower plates defining a longitudinally extending heating path between opposite inlet and outlet ends. As the web moves along the path, opposite surfaces thereof are heated to an elevated temperature and the web material then moves into a molding and cooling chamber immediately adjacent the exit end of the heating chamber wherein the web is molded to provide a curved transverse cross-section while the web is cooled. The web is cooled to a temperature at a level selected to provide a permanent set in the longitudinally traveling web.

Abstract: A downhole motor includes a bearing unit connected to a moving section incorporating successively arranged working members--a stator and a rotor interacting with each other along profile surfaces. The like pairs of the adjacent working members are rigidly connected to each other by means of solid threaded bushings. A mounting fixture includes two mounting elements each made as two bushings interconnected by a coupling, the bushings having their profile surfaces located on the same longitudinal axis. One of the bushings is rigidly connected to the coupling, while the other bushing is mounted with the possibility of moving with respect to the longitudinal axis. A method of assembling the downhole motor is effected with the use of a pre-adjusted mounting fixture and resides in interconnecting the like working members by thread bushings ensuring the arrangement of the profile surfaces of the working members analogously to the profile surface of the single monolithic rotor and stator.

Abstract: An improved method and apparatus for installing rotatable, free standing turbine blades upon a rotor, includes coupling a locking device which substantially conforms to the curved arcuate surfaces of the blade to the bottom of the blade, and thereafter inserting the blade and locking device within a serration formed in the surface with the rotor, the combination being inserted from an inlet side thereof. A tapered shim is then inserted between the locking device at a relieved portion thereof and the bottom of the serration from an exit side thereof. The shim is tapped into place until no root movement occurs, thereby securing the blade within the serration, and preventng galling of the blade root portion or damage to the blade by eliminating the necessity for tapping the blade.

Abstract: A method of producing propeller shafts for jet-propelled small-sized boats comprises the steps of preparing a main shaft in the form of a hollow round bar, which is a finished part and a pair of auxiliary shafts shorter in length than the main shaft, in the form of solid round bars, which are roughly shaped parts, connecting and integrating the pair of auxiliary shafts with the opposite cut ends of the main shaft by the friction welding process utilizing heat of friction produced by relative pressurized rubbing movement between the parts, and, with the main shaft, which is a finished part, used as a standard, machining the surfaces of the auxiliary shafts, which are roughly shaped parts, to form mount surfaces for fitting thereon such parts as oils seals, bearings, and a propeller.

Abstract: There is provided a process and apparatus for making, preferably continuously, a catalytic converter element or core especially adapted for the treatment of exhaust from an internal combustion engine, whether spark or compression ignited. The converter element may be a fan-folded or accordion folded thin metal strip or a spirally wound element which carries strongly adhered to the surface thereof a catalyst, e.g. a noble or precious metal catalyst such as platinum and/or palladium and/or rhodium. The metal strip entering the process is an aluminum coated ferritic ribbon between 0.001 and 0.003 inches thick, and 1 inch to 30 inches wide. The strip is preferably annealed and perforated at predetermined intervals. Thereafter, the strip is corrugated and given a washcoat of a refractory metal oxide which is calcined onto the surface. One or more precious metal catalysts are supplied and dried.

Abstract: A method of sealing off a vaporization chamber provided in a soleplate of a steam iron by means of a cover is described. The vaporization chamber has an outer wall which has an upper edge remote from the bottom surface of the soleplate and having an upwardly opening continuous recess or groove provided therein. The method comprises placing the cover over the vaporization chamber in contact with the upper edge of the outer wall and applying high pressure to the cover, the cover material being forced into the recess to sealingly connect the cover to the soleplate before the pressure is released. There is no need for any additional sealing materials between the chamber and the cover and no need to screw or rivet the cover onto the soleplate.

Abstract: A chuck includes a support and a plurality of pairs of oppositely disposed jaws with the jaws being movable to a position with each pair of jaws disposed on diametrically opposite sides of one element of an assembly. A motor moves selected pairs of the jaws into contact with the element and an additional motor moves the selected pairs of jaws and element away from the support to extract the element while at least one of the pairs of oppositely disposed jaws are maintained in position on the support to secure a second element of the assembly against movement while the selected pairs of jaws extract the one element.

Abstract: An apparatus and method wherein a punching tool is used to punch a downspout hole in the bottom wall of a rain gutter, and wherein a swaging tool is insertable into a gutter drop after the gutter drop is inserted into the downspout hole to swage-lock the gutter drop to the rain gutter.

Abstract: A reamer for removing material from a packing cylinder bore of an expansion joint is disclosed. A housing is provided which consists of a hollow cylindrical body having a threaded outer surface and a threaded inner surface. The threaded outer surface of the housing is adapted to cooperate with a threaded sidewall of a cavity formed in the packing cylinder such that the housing can be selectively retained therein. A shaft assembly is provided within the hollow cylindrical body of the housing. The shaft assembly includes a head portion, a threaded intermediate portion, and a bit portion. The threaded intermediate portion is adapted to engage the threaded inner surface of the housing. Rotation of the shaft assembly causes the bit portion to be rotated and advanced through the packing cylinder bore to remove the packing material therefrom.

Abstract: Method for handling semiconductor chips and the like objects are disclosed which include the use of a flat flexible film that is supported on a flat porous texturized fabric sheet such as a woven or knit fabric having spaced fiber crossovers. Objects, are supported on the flat flexible film in intimate surface contact therewith for securely holding the same in position by interfacial forces therebetween. Adhesive may be included for increasing the interfacial force. To facilitate removal of objects from the film, the fabric is connected to a vacuum source for drawing portions of the flexible film over and between crossovers in the fabric whereby portions of the flexible sheet are withdrawn from the objects. The contact area and interfacial forces between the flexible sheet and objects is thereby reduced to enable removal of the objects from the sheet using conventional object handling techniques.

Abstract: Apparatus for predisposing, handling and assembling axial electronic components (C, P) (or other elements) on printed circuit cards and for equivalent uses, which includes cutting tools (34) and bending tools (88) for, respectively, cutting and bending the rheophores (R) as well as for retaining the shaped component, which all operate in a same and single station; its transfer to the operative station being carried out by the mobile hand of a robot whose body (50) carries some of said tools.

Abstract: The invention relates to a flexible manufacturing unit with at least two machine tools (1,2) and a transport device (9) movable in rectangular coordinates having receptacles for carriers (8) holding workpieces and for the tools (6). The invention consists in that the transport device (9) is numerically controlled, that the tools (6) are individually transportable between a tool buffer store (29) and the machine tools (1,2) and that tool magazines (5) integrated with the machine tools are provided, which tool magazines are also accessible for tool exchange during the working period of the machine tools (1,2). In this way, a rapid method of operation is possible which is independent of the cycle and permits free selection.

Abstract: A low collector parasitic resistance in bipolar transistors may be achieved without the use of an epitaxial layer or a high energy implant. Essentially, the invention employs the use of trenches in an N.sup.- layer overlying a P.sup.- substrate to surround the transistor, forming an N.sup.+ region in the walls defining the trench and below the surface, extending the trench into the P.sup.- substrate, implanting the bottom of the trench with a P-type dopant and refilling the trench with insulating material.The process of the invention permits fabrication of complex bipolar integrated circuits having a very high performance, and is particularly adaptable to very small geometry devices of 1 .mu.m and lower.

Abstract: A magnetic head core consisting of a plurality of ferrite core elements bonded together into a generally annular core assembly which has a magnetic gap defined by opposed portions of the core elements, and further has at least one inclined groove which is formed in the gap-defining opposed portions in the direction of sliding movement of a recording medium so as to define at least one track which slidably contacts the recording medium moving in the vicinity of the magnetic gap. The inclined groove is inclined in the direction from one of the opposed portions to the other such that a depth thereof at the position of the magnetic gap is greater than the depth of the magnetic gap. The inclined groove is cut after the two core elements are bonded together to form the integral core assembly. Two integral core assemblies may be bonded together into an integral composite core structure, such that the inclined grooves in one of the two core elements are aligned with those in the other core element.

Abstract: In a method for making U-shaped core laminations and T-shaped magnetic circuit closing elements fitting in between the legs thereof, in a choke, ballast or transformer, in particular for use as an accessory element in gas discharge lamps, two mutually offset rows of U-shaped core laminations having their open ends facing one another and having the pairs of adjacent outer legs thereof interfitting with one another are punched out in such a manner that one pair of outer legs of one row is laterally adjacent to one pair of outer legs of the other row, and the T-shaped magnetic circuit closing elements, with cross legs adjacent to the connecting middle legs of the U-shaped core lamination are punched out of the free spaces located between the ends of the pairs of outer legs and the connecting legs, located facing tem and spaced apart from them, of the U-shaped core laminations.

Abstract: An apparatus for supplying U-shaped top end stops reliably one at a time to a holding portion of a top end-stop attaching machine, includes a movable guide rail reciprocably movable between a receiving position for receiving the top end stop from a fixed guide rail cantilevered to a vibrating parts feeder, and a delivery position for supplying the top end stop therefrom to the holding portion, and a delivery unit reciprocably movable toward and away from the holding portion to deliver a leading top end stop from the first guide rail through the second guide rail to the holding portion. The movable guide rail and the delivery unit are linked such that the delivery unit resiliently engages with the movable guide rail within a certain range of its reciprocating stroke for moving the movable guide rail from the receiving position to the delivery position.

Abstract: A preceding or forward running former passing through a female fastener element during the attaching operation is proposed for a plunger and/or plunger/punch assembly which ensures that female fastener elements, especially nuts which are preferably of the self-piercing type, can be attached even to relatively thin sheets without any additional waste.

Abstract: A technique is disclosed for coating or insulation grafting a metallic cationic wire wherein the wire is placed in water in the presence of salts of carboxylate or other appropriate polymers having anionic groups together with a cationic substance, such as lithium. A dc current is then introduced to establish the wire as an anode. By electrolysis action there is established a hydrophobic coating having a polymer-anionic-to-metal-cationic bond with the metal. The procedure of introducing salts of appropriate anionic polymers and cationic substances where there is an insulation break and short between the wires, providing moisture or standing water and a small dc current has been found useful in repairing such breaks by the formation of an electrochemical coating on the exposed anode wire.

Abstract: Method for making an insulating package premolded on a metallic frame with electrical contacts containing in an inner space a semiconductor chip which rests on a thermic dissipator and is connected to the electrical contacts. The inner space of the package is closed on top by a cover provided with a lateral extension with a bent end, which operates not only as a cover, but also as a means for fastening and thrusting the package toward a support surface.

Abstract: A method for achieving printed circuit (PC) board-level testability through electronic component-level design using available technological methods to effect a state of transparency during test, allowing precise verification and diagnosis on a component-by-component basis. Applicable to a greater variety of electronic products than other test methods, and not appreciably constraining functional design, this approach inherently avoids obstacles which prevent other techniques from fulfilling their objectives.

Abstract: An electrical harness is assembled on a board having detachable wire holders so that the entire unit can be readily transferred to an electrical chassis. The wire holders include tie wraps that are attached with a Velcro.RTM.-like material to the wiring board. When the harness assembly is complete, it is removed and placed in an electronic chassis having corresponding Velcro.RTM.-like targets. Assembly of the wire harness is faciltated by a microprocessor which indicates where each individual wire begins and ends. The microprocessor controls a group of wire terminator units each of which include a greed LED and a red LED for indicating the beginning and end of a wire. Each wire terminator unit also includes an LED/photodiode circuit for detecting the presence or absence of a wire. Therefore, the harness assembler is directed by the microprocessor to route a wire through a specific location.

Abstract: This invention relates to interconnection circuit boards and processes for making and modifying interconnection circuit boards wherein adhesive is applied to a wire used in scribing a conductor pattern. The adhesive is activated to a tacky state during the wire scribing operation which forms the conductor pattern, and can thereafter be cured to permanently bond the conductors to the board surface.

Abstract: A method is provided for constructing a mechanically strong and fluid tight assembly of an electrode along the length of an implantable lead, such as those leads suitable for cardiac pacing and diagnosis and the like. In the preferred embodiment, a short annular sheath polymeric tube is closely positioned over a coiled insulated conductor, an electrode is positioned over the short annular sheath, and a section of the insulating sheath of the lead is positioned over a flange of the electrode and sealed to a shape that is substantially isodiametric with the electrode surface.

Abstract: A dry-shaving apparatus comprises a holder for a circular cutting unit which includes an external cutting member formed with hair-entry apertures, having an outwardly extending annular flange portion, and movable transversely relative to the holder, and an internal cutting member rotatably drivable relative to the external cutting member. A retaining plate is positioned inside the holder. The external cutting member is detachably secured to the retaining plate, the internal cutting member being retained between the external cutting member and the retaining plate, by means of two resilient arms engaging around the flange portion of the external cutting member and secured to the retaining plate. A spring associated with the retaining plate moves the same transversely relative to the holder.

Abstract: A cookery implement having a handle and a spatula blade for contacting food being prepared. A plurality of puncturing prongs are provided at the side edge of the spatula blade near to the end edge remote from the handle, the tips of the puncturing prongs being directed sideways so that food can be punctured or pierced by movement of the blade in a direction generally transverse to the line from the handle to the food contacting end of the blade.

Abstract: A portable, hand-held electric knife having dual cutting blades is powered by a DC electric motor which draws its operating current from a remote storage battery. The cutting blades are mechanically coupled to the armature shaft of the DC electric motor by a gear assembly in which a pair of bevel gears are mounted for free rotation on a support shaft and are engaged by a beveled pinion gear attached to the rotor armature. Each blade is movably coupled to a selected bevel gear by a pin. In response to rotation of the drive pinion, the beveled gears are driven in counter-rotating motion. As the driven gears rotate, the blades are extended and retracted in side-by-side relation. A fulcrum shaft is received through aligned slots formed in the blades. Linear reciprocating movement of the blades relative to each other is stabilized and arcuate reciprocating movement of the coupled blades is effected as the blades pivot about the fulcrum shaft.

Abstract: A letter opener is disclosed for cutting off the edge of an envelope which has a deformable U-shaped body. A cutting blade is located in the upper wall of the body, and a hole positioned to receive the blade is located in the lower wall. An abutment attached to the lower wall serves both as a guiding surface for an envelope, and as a stopper to prevent the two walls from binding against the envelope when pressed together. The device is used by placing a corner of an envelope against the abutment, pressing the two walls together causing the blade to puncture the envelope, and drawing the device along the edge of the envelope to thereby slice off that edge of the envelope.

Abstract: A portable sawmill (20) having a frame (22) adapted to be disposed transversely of a log (24). A pair of horizontally spaced apart wheels (26a,b) are adapted to straddle the log (24). The wheels (26a,b) are rotatably supported by the frame (22) for rotation in a substantially vertical plane. A band saw blade (28) is trained around the wheels (26a,b) and for movement transversely of the log (24). An engine (30) is provided for rotating at least one of the wheels (26a,b) to cause the band saw blade (28) to form a cut in the log (24) as the frame (22) is moved longitudinally along the log (24). An elevating assembly (44) is provided for supporting the frame (22) so as to enable vertical adjustment of the band saw blade (28) relative to a top surface of the log (24). Guide rollers (40) are interconnected through the frame (22) for guiding the frame (22) along the log (24).

Abstract: An apparatus for setting the height of a desk chair for a person has a base adapted to stand on the floor, a guide fixed to and extending vertically up from the base, a support vertically slidable in the guide, and a clamp that can arrest the suport in the guide at any of a multiplicity of vertically offset positions therealong. A rigid arm extends horizontally from the support and has an outer end displaceable between a horizontal position nested in the arm and a vertical position depending straight down from the arm outer end and having a lower end 1in to 2in below the outer end of the arm in the vertical position.

Abstract: An electronic measuring device capable of indicating a measured value in both analog and digital forms. In this device, the displacement of a spindle is converted into a number of pulses and counted by a counter, and the number of pulses thereby obtained is thereafter indicated by an indicator. On the other hand, a pulse motor disposed in a pointer rotating unit is driven by a driving circuit in accordance with a counted value supplied from the counter so as to rotate a pointer by an angle corresponding to the counted value.

Abstract: A method and apparatus for making a pattern from a blank in accordance with a set of coordinates defining a plurality of data points and collectively characterizing the size and shape of a lens opening in an eyeglass frame is presented. A controller includes an instruction set to control the operation of a router coupled to a carraige arranged for rectilinear movement toward and away from a work station and relative to the rotation of a blank fixtured at the work station whereby a pattern is cut with the desired size and shape. The apparatus further includes a sensor and light source in the feeding and staging area of the apparatus to advance a blank to a fixturing spindle located at the work station and to determine the nasal side orientation of the blank at the work station.

Abstract: A pendulum operated, oscillating bow sight is disclosed for use in aiming a bow and arrow. A sighting pin is moved through the range of sighting distances by a lever having a pendulum counterweight on one arm and a sighting pin operatively connected to the other arm. As the elevation of the bow is changed, the pendulum remains in the same relative position, the lever acting to move the sighting pin for an accurate sighting of the target. Only the sighting pin projects into the sight window of the bow, thereby assuring the archer full visibility from the pin to the target, the operative mechanism being mounted on the side of the bow opposite the sight window.

Abstract: A measuring device for universal application includes a parallel-crank mechanism directly rotary mounted on the slider of an isosceles centered slider-crank mechanism. The measuring element or pin is adapted on the coupler of the constrained guide mechanism. All points of coupler plane including the measuring element are moved along exactly straight lines parallel to each other at right angle to the axis of the slider. The simple change-over of a lever against its other abutment turns the active direction of a spring and enables the resetting of the measuring device from internal to external measurement. Alternatively, two-point or three-point or relative measurements can be executed. The modular unit system permits, if desired, an arrangement of two or more of the constrained guide linkages according to the invention on the sliding axis whose sliders are rigidly connected in groups of preferably three.

Abstract: Run-through brick drying plant, which operates by the chamber dryer principle. The brick loads (T) to be dried are brought through a front door (16a) into the drying chamber (K.sub.1). After drying, the brick loads (T) are removed from the opposite side of the drying plant through the rear door (16b). The brick drying plant comprises two or more drying chambers (K.sub.1,K.sub.2,K.sub.3) connected in series, each of which said chambers (K.sub.n) operates independently so that, when the brick loads (T) are shifted from the preceding drying chamber (K.sub.n) into the subsequent drying chamber (K.sub.n+1), in the latter chamber (K.sub.n+1) the drying of the brick load (T) is continued substantially from the point of the drying formula that had been reached in the drying in the preceding chamber (K.sub.n). There are at least two, preferably three or more, drying chambers (K) in series, and there are one or more groups of chambers obtained in this way, side by side.

Abstract: Fluidized bed apparatus includes a body having located therein a distributor provided with discharge ports connected to classifiers. Plates are located over the ports and air lances are disposed intermediate the plates and the ports. The plates serve to protect inbed tubing from erosion by entrained particles and the lances control the flow of material into the classifiers.

Abstract: An apparatus for continuously thermally treating an elongate textile product such as a slide fastener stringer tape having oil includes a housing having a preheated chamber for preheating the textile product and a main heating chamber for heating the elongate textile product after it has been preheated to give off an oily smoke. Part of the oily heated air in the main heating chamber is discharged out of the housing through a heat exchanger which supplies heated air of lower temperature to the preheating chamber. To remove a tar deposit from the heat exchanger, the supply of cold air to the heat exchanger is cut off and the heat exchanger is heated by the heated air discharged from the main heating chamber. The tar deposit is then melted and collected by a tar collector. The main heating chamber has inlet and outlet slots for the elongate textile product, the inlet slot opening into the preheating chamber and the outlet slot opening into an outlet chamber communicating with the preheating chamber.

Abstract: A drier for the heating and drying of wet, comminuted organic materials comprises a stationary housing with a revolving, hollow axle or rotor (1) with inlet and outlet for a heating medium, and where the rotor has a number of annular drying elements (2) disposed at intervals. The drying elements (2) are heated by the heating medium through heat channels (3). On or between the drying elements, lifting elements (4) are disposed along the circumference. Adjacent lifting elements are disposed in a displaced manner from each other to the same side along the outer periphery of the annular elements (2), so that the leading edges (11) extend along a helical line. The drier hereby provides an improved drying and mixing and has a better efficiency. Furthermore, one can determine how quickly the material being dried shall travel forwards, or how long it shall remain in a certain zone. The invention also relates to a lifting element for the drier.

Abstract: An apparatus for closing and tightening a boot on the foot and the lower leg of a skier. The apparatus is to be used with a boot including first and second parts. One of the parts is displaceable with respect to the other of the parts. The apparatus includes at least one linking element, a traction apparatus for applying a traction force to the at least one linking element, and an apparatus for changing the direction of the at least one linking element. One portion of the at least one linking element is attached to the first part of the boot and the other portion is attached to either the second part of the boot or the foot. The traction apparatus is positioned on the boot, and the direction changing apparatus changes the direction of the at least one linking element as the at least one linking element extends from the first part of the boot to either the second part of the boot or the foot. In addition, the direction changing apparatus is positioned on the traction apparatus.

Abstract: A device for training new players in the proper technique for power-kicking a soccer ball, or place-kicking or punting a football, using the principle of audible reinforcement. As the foot makes contact with the ball in the optimum location for maximum distance and accuracy, the training aid emits a sound. Mis-kicked balls do not cause the sound to be generated.

Abstract: A decorative sign which simulates the appearance of neon lighting and a method for making the same is described in which a polymer fluorescent gel is cast upon and bonded to a plane in a "neon" shape and is activated by exposure to an activating lamp.

Abstract: The quantity display 22 of an apparatus for documentless order picking consists of a cover (36) which is preferably made from plastic and leaves a display panel (38) for a luminous display (24). Led through the cover (36) is an actuating button (50) for a switch which together with the digital luminous display (24) is secured on a printed board. The board and the actuating button 50 are secured via snap-action fit to the cover (36) and the cover (36) is mounted via snap-action fit on the storage means.

Abstract: A multi-panel display comprises a plurality of rectangular panels formed of a foam core laminate interconnected at adjacent side edges by flexible plastic strip hinges formed of resilient sheet material and fastened in slots in the adjacent side edges of the panels. The outer edges of the panels include longitudinal slots that extend around the outer periphery of the panel display. The front and back surfaces of the panel display are covered by a loop fastener fabric, with the ends of the fabric on the front and back surfaces extending over the outer edges of the panel display and tucking into the slots around the periphery of the panel display so as to conceal the ends of the fabric. Separate panel display sections can be interconnected by stiff splines that fit in the slots in opposing edges of display sections placed edge-to-edge on top of each other. Panel display sections can be interconnected horizontally by hook fabric strips inserted in the outer side edges of the panel displays.

Abstract: A signal flare cartridge for launching by firearms. The cartridge is adap for ignition and launching by live ammunition and comprises a launcher tube holding a tubular flare body adapted to permit the passage of a bullet. Upon firing the bullet passes through the bores of the flare body and the propellant gases ignite the flare body which is propelled from the launcher tube.

Abstract: A shotgun choke for deforming the shot pattern to throw a very wide pattern with a narrow vertical band by maintaining a substantially constant width in the choke but narrowing the height of the interior of the choke in a parabolic fashion.

Abstract: An animal trap comprises a base frame having an upper surface and a jaw member pivotally mounted on the base for pivotal movement from a cocked position to a sprung position, the jaw member having at least one horizontal bar extending transversely of the base. Spring means yieldably urge the jaw member to the sprung position. A catch member is pivotally mounted on the frame also and includes a catch pawl for retentively engaging the bar of the jaw member to hold the bar in its cocked position. The catch member is pivotal away from retentive engagement with the bar to release the jaw member so that it can return to its original position. A trip member is also pivotally mounted on the base, and is movable to a set position engaging the catch member to hold the catch member against the bar when the bar is in its locked position. The trip member is movable to release the catch member which in turn releases the bar and permits the jaw member to pivot to its sprung position.

Abstract: The invention disclosed herein comprises a lobster pot having plastic, unitary heads. The lobster pot may also be have its frame partially or completely formed of plastic and its sides may be formed of wire mesh.