Abstract: An antifriction bearing is provided having inner and outer bearing rings with a complement of rolling elements held in the annular chamber therebetween, the annular chamber of said bearing being closed off by a plastic seal of durometer hardness over 50 and ranging up to about 100 deformably mounted therein by virtue of a flat plastic washer being placed in the annular chamber and radially extruded or deformed under pressure, with or without the application of heat, to effect radial flow of the periphery of said washer into a peripheral seal-retaining groove of one of said bearing rings in securing engagement therewith.

Abstract: A protective dust cover for the needles of a mosaic printing head which eliminates the need for precision matching of segments that fit together to form holes for accepting printing needles passing therethrough. There is no precise arrangement of the parts of a dust cover to furnish an effective printing needle dust cover.

Abstract: An encapsulating block encasing a projecting workpiece, the block having a plurality of parallel slots in opposed side walls, the slots in each side wall extending alternately from opposed side edges of the side wall and terminating in a bearing face in the region of a plane passing through the workpiece and a frangible cross-sectional area of the block. Apparatus for use with the block consists of a pair of dies each having a plurality of parallel projecting tines receivable longitudinally in the slots to meet the bearing faces whereby on moving the dies together the block will fracture in the frangible cross-sectional area.

Abstract: A tool for removing injectors from diesel engines having a working head proportioned to fit closely within the outer end of the central passage of a diesel injector and provided with a shoulder for limiting penetration thereinto. A transverse passage in the working head contains a spring-loaded pin having a stop to limit the distance by which the outer end of the pin projects beyond the cylindrical surface of the working head when the tool is not in use. In use, the spring-loaded pin is depressed to permit the outer end of the working head to be inserted into the central passage of the diesel injector until the shoulder bears against the diesel injector. The working head is replaceably carried on an elongated shaft, and a massive cylindrical driving member is slideable on the same shaft between a stop at the outer end of the shaft and the working head.

Abstract: A method of repairing erosion cavities in large steel articles, such as slag and cinder pots by employing a plurality of successive aluminothermic reduction reaction charges without using containment perimeters and without preheating the article. The resultant repaired article has a metallurgically bonded plug in the eroded surface.

Abstract: A gas chamber forming method in a cylinder of gas enclosed type such as hydropneumatic shock absorber or gas spring having high pressure gas enclosed therein. The method comprises steps of inserting a free piston slidably in the cylinder, disposing a stopper having a passage communicating the opposite sides thereof so as to abut with the free piston at one side thereof remote from a closed end of the cylinder, pushing the stopper and the free piston toward the closed end of the cylinder thereby elevating pressure of the gas confined between the free piston and the closed end of the cylinder to a predetermined level, securing the stopper relative to the cylinder, and thereafter, closing an open end of the cylinder.

Abstract: A method employed in the spacing and gapping the product containing rollers contained within a plurality of continuous casting discharge racks. Both the method, and apparatus with which the method is employed, insure the accurate gapping of the discharge rack rollers from a specific centerline, the latter being in a given spacial relationship with a given benchmark located upon the rack per se such that the centerlines of a plurality of such racks are collinearly aligned when positioned using their respective benchmarks within a continuous casting machine.

Abstract: Individual slide fasteners are manufactured from a pair of continuous slide fastener stringers having stringer tapes made of a fabric including thermoplastic synthetic fibers. While being advanced intermittently in the longitudinal direction, the stringers are stamped out to form an element-free gap therein and cut to sever off an individual slide fastener length simultaneously at a first station with the application of heat to fuse and solidify the cut end against reveling. A bottom end stop is mounted on the cut end portion of the severed slide fastener length also at the first station. During advancing movement from the first station, the fastener chain is threaded through a slider fixedly supported between the first station and a second station located downstream of the first station. A top end stop is mounted on the cut end portion of the continuous slide fastener stringers at the second station simultaneously with the steps repeated at the first station.

Abstract: A separable bottom end stop having a pin member and a box member is attached to a pair of slide fastener stringers each comprising a row of helically coiled coupling elements supported on and along one side of a marginal edge of a stringer tape, there being a filler cord extending in and along the row of coupling elements. In preparation for the mounting of each of the pin member and the box member, a length of the row of coupling elements is removed, and the exposed filler cord portion and element-free tape portion are pressed together so that the exposed filler cord portion remains in substantial alignment with a portion of the cord which extends over the element-supporting stringer portion, and the element-free tape portion is bent into pressed contact with the exposed filler cord portion. The pin member and the box member are injection-molded on the element-free tape portions and the exposed filler cord portions of the stringers.

Abstract: Elongate copper bodies, such as rods and wires, of electric conductor grade are made by electrodepositing copper as brittle cathodes which are then broken into fragments and fed as such to a continuously-acting friction-effected extrusion machine (such as Conform or Linex) which consolidates, bonds and extrudes them. The fragments have a specific surface area of about 25 - 1000 mm.sup.2 /g, and they are not subjected to any high-temperature purification or grain growth step prior to extrusion, though moderate pre-heating is allowed. Avoidance of high-temperature processing, such as conventional casting and hot-rolling, saves much energy and in addition copper of higher quality is produced.

Abstract: The process of making an ingot for use as a feed stock for a coating process in which the ingot is vaporized to produce the coating material; the ingot being made by forming a billet of the alloy minus the reactive element with a rod of the reactive element of the alloy extending centrally through the billet and then shaping the billet to ingot size, the cross-sectional area of the rod having the same relation of the remainder of the area of the billet as the percentage of the reactive element in the alloy.

Abstract: A method and apparatus for producing a conduit intended for communication with a plurality of working-medium sources, which conduit includes at least two connecting elements spaced apart along the length of the conduit and secured thereto. Each connecting element has a through passage communicating with the passage of the conduit and intended for connection with a source of a working-medium. The axis of the through passage is perpendicular to a plane passing through the conduit axis. To make such a conduit, a continuous-surface conduit is fed under pressure to a die-casting machine and is placed in its casting die.

Abstract: A laminated core manufacture wherein a plurality of apertured laminations are provided with projections formed from the portion of the sheet from which the apertures are formed to define an interlocked laminated stack. The first of the laminations is provided with a through aperture with the projection being eliminated so as to define a nonprojecting surface in the first of the laminations of the stack, with the projections of each of the subsequent laminations extending into and being interlocked with the preceding lamination in the aperture thereof. The punching apparatus for providing the apertures and projections is selectively operated to define either the formed aperture and projection structure or a blanked out apertured structure. The blanked out apertured structure defines the first of the laminations of the stack.

Abstract: A cable connecting apparatus for locking of wires of a multipair cable in a cable connector comprises a base with longitudinal axis, a connector receiving station and a cable receiving station having supply side and product side and having first and second comb means on respective sides, means in the base for elevating the cable receiving station and rotatable arm means containing an anvil means, the arm means rotating about the axis of the base into a position above the cable connecting station.

Abstract: A method and apparatus for automatically changing interchangeable machining tool heads carried by a tool carrier. The tool heads are suspended from an overhead trolleyway by leading and trailing trolleys, with the leading trolley carrying a probe and a vertical finger and the trailing trolley carrying an inclined guide. The vertical finger selectively engages a block carried on an overhead moving chain for moving the tool head toward the tool carrier. The probe extends in the direction of tool head travel and is responsive to proximity of the probe to the inclined guide of another tool head or to a pneumatically-actuated stop for disengaging the vertical finger from the chain. A shuttle bar assembly simultaneously loads and unloads tool heads from the tool carrier by engaging a block on each of the tool heads and moving the tool heads horizontally to loaded and unloaded positions.

Abstract: A machine tool comprising one or plural storage magazines which are mounted along the vertical direction rotatably around a vertical axis on an upstanding support frame structure at a side of working station. Each of the magazines stores at the periphery thereof a plurality of spindle heads, workpiece supporting jigs or tool supporting heads which are alternatively set one by one to a set position at the working station for operation on workpieces. Alternative setting of such heads or jigs is achieved by a selective rotation of each magazine and by a selective lifting and lowering of the head or jig between the set position and a store position just above such set position. Floor space required for storing and exchanging the heads or jigs is largely saved. A particular exchanging device for exchanging heads or jigs stored by the magazines for another heads or jigs is provided which greatly enlarges processings possibly carried out at the working station.

Abstract: Method for manufacturing complementary insulated gate field effect transistors of LOCOS (local oxidation of silicon) structure wherein after the formation of a well layer, an impurity having higher doping level than and the same conductivity type as a semiconductor substrate (well layer) is ion implanted at an area in the semiconductor substrate on which a field oxide layer is to be formed using a silicon nitride layer as a mask, and the semiconductor substrate surface is selectively thermally oxidized using the silicon nitride layer as a mask.

Abstract: According to the invention, electrically conductive paths are formed between the coil armor and the core laminations of dynamoelectric machines for inhibiting corona. This is achieved by injecting an uncured, semiconducting, elastomeric material between the coil sides and slot walls through the use of an injector tool inserted between them, and thereafter curing the material. The uncured material has a viscosity which enables it to be forced under pressure into these spaces, and when cured it has a resistance high enough not to form eddy current paths between laminations and yet low enough to conduct charge from the coil armor to the core. It is also capable of retaining its strength, elasticity, conductivity, etc., and remaining in place between the coils and core under vibrations, coolant flow, electric stresses, repeated temperature changes, etc., for the normal operating life of the machine.

Abstract: A method of fabricating cylindrical rotor coil for use in coreless motors is provided, wherein coated insulation film on coil wire at a plurality of positions to be located at an axial end edge of the rotor coil cylindrically wound is removed for connection with commutator segments during winding operation of the wire into cylindrical shape. The winding operation is preferably intermittently interrupted for performing the insulation film removal. Advantageously, the removal is performed by dipping the particular positions into a molten state solder, whereby the film is thermally fused and removed and exposed conductor parts are simultaneously coated with the solder. The film may be removed, alternatively, by means of high frequency induction heat or high voltage discharge arc.

Abstract: A head chip having a track width of a gap smaller than a thickness of a core enables a high density recording of a video signal. The track width of the gap is machined before a bulk is sliced into individual head chips to save manufacturing time and enhance yield. An efficient machining of the track width is achieved using a plurality of hard metal wires such as piano wires spanned on rollers each having a plurality of precisely spaced grooves thereon and reciprocating the metal wires while dropping grinding liquid thereon. In this manner, the occurrence of chipping of core material is minimized or the size of chipping, if any, is minimized.

Abstract: The induction coil of this invention is wrapped on a non-metallic core with convolutions of the coil adjacent to one another. An adhesive tape is applied over the convolutions with a lapped seam of the tape and with the tape preferably extending beyond both ends of the coil in order to hold the convolutions of coil against moving with respect to one another while the coil is being transported from the winding step to the next operation in which a jacket is molded over the coil in a cavity of an injection molding machine.

Abstract: An electrical circuit component includes an apertured substrate having a circuit deposited on a surface and further includes a terminal lead seated in the aperture and having laterally extending flanged portions in clamping relationship at opposite sides of the substrate. The inserted portion of the terminal lead is provided with peripheral knurling to define collapsible ridges. The ridges engage the surface of the aperture as a temporary means of aligning the axes of the terminal lead and the aperture prior to upsetting a protruding end portion of the lead for permanent clamping retention of the substrate and the deposited circuitry.

Abstract: A shaving apparatus having a continuously driven endless band cutter, a stationary upper cutter with hair entrance apertures, and a stationary lower cutter with recesses corresponding to the apertures in the stationary upper cutter, the endless band cutter being disposed between the stationary lower cutter and the stationary upper cutter. Preferably, stops are mounted on at least one of the stationary lower cutter and the stationary upper cutter to space them apart, with the resulting spacing being slightly greater than the endless band cutter thickness.

Abstract: A detachable shaving head for a reciprocatory dry-shaving apparatus having a carrying frame hinged to the head cap and provided with a cutting assembly, the carrying frame having on its under side an oblique surface whose height decreases inwardly from the hinged edge of the carrying frame, a stop cam being provided on such under side adjacent the inner end of the oblique surface for cooperation with an edge of the cap.

Abstract: A glass cutter having a cutting wheel rotatably mounted at one end thereof. A cutting fluid reservoir is situated within the tool housing at the end remote from the cutting wheel. The cutting wheel is mounted on a support member which is spring biased to provide a constant cutting pressure. A part of the wheel supporting member cooperates with the interior of the housing to form a valve which allows cutting fluid to flow through the wheel when the wheel is displaced against the action of the spring toward the housing during a cutting operation. A wheel cover pivotably mounted to the housing adjacent the cutting wheel has a closed position in which it protects the cutting wheel, and an open position in which the cover acts as a cutting guide.

Abstract: An ultrasonic dental scaler is disclosed having a handpiece which comprises an outer shell, housing an electromechanical vibrator. The vibrator consists of a magnetostrictive transducer positioned within an energizing coil located within the shell, an acoustical impedance transformer connected at one end to the transducer, and a dental work tool connected to the other end of the transformer. The transformer provides an acoustical transmission line between the transducer and the work tool. An o-ring is mounted inside the sleeve at the balance point of the transformer to form the sole support for the vibrator. The o-ring support causes the nodal plane of the vibrator to shift from its natural position to the supported position. This forced shift of the nodal plane from its natural position causes the frequency of the system to change from its otherwise induced frequency so that the transducer length may be shortened without forfeiture of the desired operating frequency employed by such scalers.

Abstract: An oil dipstick for use in measuring the oil level in an oil receptacle such as the crankcase of an automotive vehicle, including an elongated rod that is received in a wiping member in frictional contact therewith and is movable outwardly of the crankcase relative to the wiping member, wherein oil is removed therefrom by contact with the wiping member. A locking member is secured to the rod and is engageable with the wiping member for selectively locking the wiping member to the rod, so that the wiping member and rod are removable from the crankcase as a unit for a reading of the oil level on the rod.

Abstract: To measure simultaneously the outer diameter of sets of profiled wheels which are formed by a turning operation and therefore provided with circumferentially extending grooves, an apparatus is provided having a pair of metering wheels which have respective cylindrical circumferential faces of nominally identical diameter and width. The width of each face is bisected by a plane intersecting the plane that encompasses the diameter to be measured, on a line tangent to this diameter.The metering wheels are mounted for rotation about axes of rotation which extend parallel to the enveloping line in the plane to be measured.

Abstract: A shingle gage is provided for aligning a second row of shingles to a first, lower row of shingles fixed to a roof or like structure so that the shingle rows are parallel to and spaced from each other. The shingle gage includes a first member having a first alignment surface which abuts against one longitudinal edge of the fixed row of shingles. A second member is attached to the first member of the shingle gage and includes a second alignment surface adapted to abut against one longitudinal edge of the second row of shingles. The first and second alignment surfaces are parallel to each other so that, with an abutting engagement obtained between the respective alignment surfaces and the first and second row of shingles, the second shingle row is aligned parallel to the first row of shingles and then secured to the roof. In addition, the second member is adjustably attached to the first member so that the spacing between the alignment surfaces is adjustable.

Abstract: Apparatus for conducting measurements of displacement, deflection, tilting, nd/or rotation of structures such as floodwalls, retaining walls, dam piers, buildings, embankments and the like is disclosed. The apparatus of this invention has the capability of simultaneously making measurements in two planes, parallel and perpendicular, with respect to an axis or other predetermined reference. Further, the apparatus of this invention includes means for determining the azimuthal bearing of the apparatus relative to the axis or other predetermined reference when the aforementioned measurements are conducted. The apparatus of this invention includes a measuring unit having a housing that houses first and second servo-accelerometers; first, second and third amplifiers; and a rotational variable differential transformer. The amplifiers are electrically coupled to a meter by means of a cable having electrical conductors.

Abstract: Automobile front end alignment equipment in which a platform comprised of a pair of trucks correlated for like orientation while free for universal movement on a horizontal surface, supports respective carriages for free swinging about respective vertical axes, which carriages engagingly support front wheels of a vehicle in predetermined relation to the wheels of a vehicle, and a bracket attachable to a wheel whereby correlated toe-in toe-out and camber of wheels may be simultaneously measured.

Abstract: A compass design particularly for wrist mounted and hand held compasses which includes a first exterior, fluid tight case having a pair of pivot members respectively on the upper and lower surfaces thereof for rotatably mounting a second interior case member which second case member is provided with a horizontally pivotal magnet body which magnet body is permitted to move a predetermined degree with respect to a normal horizontal position to accommodate for magnetic inclination and which outer case is filled with liquid to place the inner case in substantial equilibrium between the pivot members such that the inner magnet bearing case will be substantially frictionally free to rotate in the outer case.The mounting for the magnet body within the inner case allows the magnet body to oscillate and therefore provide free movement even though the magnet is not held in a horizontal position.

Abstract: Clinker coming from a rotary tubular kiln is cooled by moving a layer of the clinker of a grate in a cooler from a hot zone to a successively cooler zone by introducing fresh air in the cooler zone and passing in countercurrently through the layer of the clinker several times whereby a heat exchange takes place between the air and the clinker, the clinker becoming successively cooler and the air successively hotter. The air is introduced from the cooler zone sequentially into two sections of the hot zone, air at a temperature above 1000.degree. C is removed from a first section in the hot zone, and air at a lower temperature is conducted from the second section in the hot zone into the kiln where it is used as secondary heating air for the raw material therein.

Abstract: A forced air food drier having a cabinet-like structure with a front door for access to the interior of said cabinet and drawer supports arranged along each side of said cabinet for receiving a plurality of drawers thereon. Each drawer is provided with a reflective bottom member and spaced a small distance thereabove a screen member for supporting the food to be dried thereupon. One end of each drawer is provided with an air passage slot and when the drawers are assembled within the cabinet, the air passage slots are alternated at the sides of the cabinet so that forced hot air from a blower structure and heating structure at the bottom of the cabinet is forced to pass alternately by the bottoms and tops of each respective drawer until exhausted out exhaust vents at the top of the cabinet. Appropriate fan and blower control timers together with heater control switches and timers are provided with the cabinet structure.

Abstract: In an electronic experimenting kit an insulating base is provided on the one surface thereof with two rims and between said rims with grooves inside which are mounted conductors. Electronic components are each mounted on a plate with the terminals thereof connected to conductors mounted on said plate. The rims are provided with grooves into which the plates are slid by the ends thereof. The plates are retained in position by springs which also provide the electrical connection between a base-mounted conductor and a plate-mounted conductor.

Abstract: A biofeedback training system is provided in which portable, self-contained modular units may be used independently for relatively simple biofeedback training purposes by a layman or may be connected to a central processor adapted to provide more sophisticated processing of the signals monitored by the portable unit under supervision of a specialist. The system thus provides a partitioning of functions in which physiological signals are monitored and preprocessed in the portable unit, and when the portable unit is connected to the central processor, these preprocessed signals are then fed into the central processor where elaborate filtering, thresholding, converting and integrating functions take place in a biofeedback system. The central processor is capable of receiving inputs simultaneously from multiple portable units.

Abstract: An apparatus and more specifically a drag adapted to form and condition a ski trail, and in particular two generally parallel ski traces as commonly used for cross-country skiing, such that the ski traces are of uniform parallelism and depth and are free of lumps of ice and snow. This drag includes a rear sled unit and a front unit, a pair of runners forming ski traces secured under the sled unit, a pivotal connection joining the two units and allowing only up-and-down sliding and yaw pivoting of the rear unit relative to the front unit. The rear unit includes a sled platform and a pair of runners of particular construction to cooperatively produce ski traces of uniform parallelism and depth. The front unit includes a frame carried by a runner and adjustable height relative to the latter, scrapers pivoted to the frame of the front unit between a downward operative position and an elevated inoperative position.

Abstract: A slack takeup apparatus for a circular excavating rim includes a support frame and first and second rim engaging wheels mounted on the support frame in spaced-apart relation for rotation about stationary axes. A third rim engaging wheel is rotatably mounted at the free end of a pivot member connected to the support frame. An extensible power member is pivotally connected to and extended between the third wheel and support frame for pivotally moving the third wheel and pivot arm to take up slack between the wheels and circular rim.

Abstract: An improved cutting edge for use with a bucket having a front edge. The cutting edge is welded to the bucket and includes a rear portion having a hardness less than the front cutting edge portion to permit the assembly of the front and rear portions to be welded to the bucket front edge without preheating the cutting edge assembly and effecting the weldment thereto. In one form, the front portion of the cutting edge assembly is defined by a one-piece element, and in another form, the front portion includes a plurality of hardened blade elements welded to the rear portion.

Abstract: Apparatus for the display of information comprises an endless band carrying transverse holders each of which carries a plurality of laminae having differently colored front and rear regions. Each lamina may be positioned either to overlap the front region of the succeeding adjacent lamina or to lie behind it so as respectively to obscure or expose this front region. Selection of one or other of these positions of the laminae is secured by passing the band around a pulley of sufficiently small radius so as to spread the holders apart sufficiently for each lamina to be clear of the succeeding lamina and then moving the lamina to one or other position. The laminae may be magnetic and drawn away from the holder by magnets adjacent this pulley into the overlap position. Alternatively the laminae may be driven back against the holder from the overlap position by jets of air.

Abstract: In a preferred embodiment, there is provided a pad in the nature of a tablet form of a plurality of stacked sheets interconnected along one edge thereof in a manner such that a plurality of the consecutive sheets may be simultaneously torn neatly away from the remainder of the pad, with the torn-away portion remaining joined as a unit, each unit comprising a top mat or presentation-frame sheet for in effect framing a picture within a through-passage window with a lower sheet of the unit being a backing sheet, and preferably there being an intermediate sheet having also a window of reduced dimensions of the the nature that the upper face of the second, intermediate sheet is viewable through the upper sheet's window as a margin, and the backing sheet's upper face being viewable through the window of the intermediate sheet, normally in such an arrangement the second sheet's upper face being a different contrasting color to that of the first, upper sheet's upper face, and also preferably either or both the top sh

Abstract: A flat laminated sheet made from two sheets of plastic or cardboard and a third intermediate spacer sheet which is the thickness of a film such as a dentist X-ray film. The outer sheets have one or more rectangular openings positioned opposite each other, the opening of one sheet having a greater height dimension and lesser width dimension than an X-ray film and the other opening having a greater width dimension and lesser height dimension than an X-ray film so one sheet will have supporting rim portions for the film at top and bottom and the other will have supporting rim portions for the film at the sides. The intermediate spacer sheet at each opening can be weakened at margins essentially equal to the dimensions of a film so a screening portion of the spacer sheet can be removed for insertion of a film and replaced if a film is removed.

Abstract: A sign cabinet having a scroll movably mounted on rollers for movement past a display opening in the cabinet. A torsion spring acts on one of the rollers to compensate for differences in the rate of movement of the scroll at the two rollers. An electronic control circuit automatically senses the position of the scroll and is actuated by the position information for controlling the operation of the scroll. The modes of operation include: continuously moving back and forth between preselected end points within the scroll; moving back and forth within a predetermined section within the end points, stopping at preselected frames within the section; and, advancing from one frame or section to another.

Abstract: A changeable exhibitor comprising a video or script tape movable on vertical guide rollers in a closed loop, a weighted roller freely movable along a substantially horizontal roller path within the interior space of said loop, a disc on one side of the roller, and projections on the side of the tape facing the roller path, said disc and projections cooperating to advance the tape in response to movement of the weighted roller in one direction along the roller path.

Abstract: An upstanding hollow receptacle is provided including interconnected opposite sides, opposite ends and top and bottom wall portions. The upper portion of one of the sides has a horizontal opening formed therein and the bottom of the receptacle is provided with an outlet opening closable by means of a slide fastener. In addition, support straps are carried by the receptacle on the side thereof defining the horizontal opening and the straps may be secured about the receiver and/or barrel portions of a long gun with the receptacle disposed on the side of the receiver from which spent shells are ejected with the horizontal opening disposed in position to receive shells being ejected from the receiver. The receptacle is constructed of flexible material supported by means of a frame over which the upper portion of the receptacle is disposed.

Abstract: Trigger or touch-actuated or screw-cap actuated safety device for trigger or touch-actuated or screw-cap actuated mechanisms is provided having a pivotally mounted magnetically responsive bar positioned on the inside of the handle on the rear of the trigger. When the bar is oriented centrally, sufficient movement of the trigger is inhibited to prevent actuation of the device. The bar may be mounted in a non-magnetizable casing. The user of the device, by wearing a magnetic ring, displaces the bar from its central orientation and allows for sufficient movement of the trigger for actuation. The present invention may also be employed to selectively inhibit operation of touch-actuated devices.

Abstract: A fishing rod, having a longitudinal bore for the reception of an elongated projectile, replaces the conventional barrel and is secured to the magazine of a compressed gas fired pistol. The bore includes a lateral port communicating with a charge of gas under pressure. The elongated projectile is closed at its forward end and includes an axial socket open at its other end. A tubular bolt is slidably received in the bore of the fishing rod and the axial socket of the projectile. The bolt is closed at its rearward end but includes a lateral port communicating with the lateral port in the bore and with the axial socket of the projectile, whereby the bolt transfers the charge of gas to the projectile for firing thereof. A monofilament line, wound on a spin-cast reel supported by the fishing rod, has its free end attached to the projectile for retrieving the projectile after being fired at a target.

Abstract: A single main blade spinning type fishing lure, having the advantage of not twisting a fishing line attached thereto, during a retrieving action; the lure having a main blade at a fixed angle with the shaft; the main blade being also at an offset angle to the shaft and having a raised lip on its leading edge; a connecting wire being fixed in a lead, keel-shaped body having a twist opposite to that of the main blade; and also aft blades rotating opposite to the main blade.

Abstract: A device carried by a fisherman for dispensing live insects, e.g., crickets and the like, used as fish bait. The device includes a bait container for holding a limited supply of the crickets and a bait dispensing head attached to the bait container for facilitating the act of empaling the cricket with a fishhook and for subsequently facilitating a gentle unrestrained removal of the cricket therefrom. The head includes a pair of jaws which entraps the cricket and constrains it as the fishhook is being thrust therethrough. The jaws are movable to an open position which releases the now hooked cricket allowing it to jump free of the dispensing head. The head also includes a movable gate for enabling the dispensing head to effectively constrain various different size crickets selectively therein.

Abstract: A child's toy construction system, similar in purpose to "Erector" sets, is provided having reusable, distensible "rivets" instead of nuts and bolts, and a rivet "gun" to provide a feeling of authenticity in use.The system includes plates and bars to be joined together to create different structures. They are joined by use of the rivets passing through aligned holes in the plates and bars.The rivets are formed of bullet-shaped, soft distensible rubber pieces having a bore passing lengthwise through the rivet, but being closed at the leading end. The rivets have an outside diameter greater than the diameter of the holes, when the rivets are in their relaxed, undistended condition, and will, therefore, when not distended, expand to fill the holes and secure the pieces together. Their diameter is less than that of the holes when they are longitudinally distended. The base of the rivets is larger than the holes and includes an undercut gripping shoulder.