Abstract: A method of producing a modular type automotive body structure is disclosed. The method comprises (a) preparing various preassembled body units, each having an inner decorative cover member laid on a surface defined therein, (b) joining the units together in such a manner that a peripheral edge portion of the inner decorative cover member of each unit is neatly received in a restricted clearance which is defined between actually joined portions of the respective units, and (c) securing the respective units by means of bolts and nuts in such a manner that the peripheral edge portion is fixed in the restricted clearance.

Abstract: A machine tool comprising a spindle head, a tool magazine, and an arm, the arm being secured to the spindle head, the arm having gripping members for holding a tool holder. When a workpiece is machined, the arm in which gripping members are opened is placed near the spindle. As soon as machining is completed, the grip members are closed so as to hold the tool holder set into the spindle. The end face of the spindle and the end face of the tool magazine stand at different levels when the spindle head is located in tool changing position. When a used tool is returned to the tool magazine, the arm operates in the following steps: first, the arm grips the used tool set into the spindle; second, the arm is moved so as to draw the tool from the spindle; and third, the arm is swiveled so as to return the tool to the tool magazine.

Abstract: A method of making a surface mountable electronic device comprising the steps of providing a discrete electronic device comprising a body and a pair of spaced apart leads each of substantially circular cross-section and extending axially outwardly from the body in generally opposite directions, shaping each of the leads to provide a plate-like section in each of the leads at a location axially outwardly from the body, encapsulating the device body in electrical insulating material in a manner shaping the material to provide a body having first and second spaced apart ends and a mounting surface extending between the ends, the plate-like sections of the leads extending from the ends, and shaping each of the plate-like sections of the leads to have a contact portion extending along the mounting surface for making electrical connection to a circuit having a portion defined on a surface to which the device is mountable.

Abstract: In the magnetic head having, in the magnetic recording medium sliding surface, a first magnetic gap followed by a second magnetic gap in the medium sliding direction, the medium sliding surface is provided with a plurality of parallel grooves to each other extending obliquely with respect to the medium sliding direction, and the positions of the first and second magnetic gaps on the medium sliding surface are defined by the plurality of grooves.

Abstract: A method of manufacturing a contact block includes the processes of forming make contact pieces, break contact pieces, base pieces, and terminal pieces in a first hoop member by blanking, forming a first subcontact block having the break contact pieces and a second subcontact block having the make contact pieces by molding these pieces, forming movable contact spring pieces by blanking a second hoop member, aligning the second hoop member with the first hoop member and welding the movable contact spring pieces to the base pieces, cutting off the movable contact spring pieces from the second hoop member, and cutting off the first or second subcontact block from the first hoop member and aligning/coupling these subcontact blocks to each other. According to these processes, the respective components are held on a loop member up to the final process so that contamination and deformation of these components can be prevented.

Abstract: An apparatus for adjusting the backlash on a differential has a clamp for holding the pinion gears to the housing, locating means for precisely positioning the housing and bevel gear relative to one another, an air cylinder to press the bevel gears towards the pinion gear, and a micrometer used to measure the travel distance of the bevel gear. The clamp preferably also includes tangs resiliently pressing the bevel gear away from the pinion gears, both to aid in separating the bevel gear from the pinion gears and to compress any clutch pack in the differential, e.g., if it is a limited slip differential.

Abstract: The invention discloses that when parts are mounted on a single board in a plurality of identical patterns, parts mounting can be effieciently performed by changing the sequence of mounting the parts for each pattern in accordance with the arrangement state of the pattern, and a blank portion on the board can be minimized and hence patterning can be effectively performed by arbitrarily setting the directions of the mounting patterns to be mounted on the printed board in accordance with its form.

Abstract: An apparatus featuring a suction head assembly for transferring a set of chips from a template assembly to a printed circuit board. In order to make the suction head assembly readily adaptable for mounting the chips in any of numerous different arrangements on circuit boards, a planar head carrier is provided which has a multiplicity of mounting holes formed therein in columns and rows. A set of suction heads can be mounted to the head carrier in any desired arrangement, corresponding to the desired chip arrangement on the circuit board, by having their holders removably engaged in selected ones of the array of mounting holes in the head carrier. The template assembly is likewise made adaptable for a variety of chip arrangements, by having a set of open-top positioning vessels removably engaged in selected ones of an array of mounting holes formed in a template.

Abstract: An apparatus for measuring the surface pore size in an externally enhanced evaporator tube. Basically, the apparatus includes a pressure housing and gage that are sealingly engagable around a portion of the surface of the enhanced tube, so that fluid pressure flows into the housing and then through the pores and subsurface channels on the tube and then to the outside of the housing. The pressure drop across the pores and subsurface channels of the tube relates to the size of the pores.

Abstract: A machine for inserting electrically conducting miniature spring sockets into holes of a printed circuit board without any damage to the circuit board, yet providing sufficient lateral movement to accommodate slight misalignments during the insertion process.

Abstract: A method of self packaging an integrated circuit chip on a printed circuit board where conductive leads form an electrical connection with interconnect leads on the printed circuit board. A centering frame placed on the printed circuit board serves to align the leads. A cooling cap which dissipates heat from the integrated circuit chip is placed over the centering frame and integrated circuit chip. In one embodiment, the leads form a pressure fit and the cooling cap forces the pressure-fit electrical connections. In another embodiment, the leads make rubbing contact with each other.

Abstract: The invention is directed to a process for refurbishing of prior used laminated ceramic packages with the example shown as a pin grid array ceramic package which includes a ceramic substrate with a central opening or cavity, a plurality of conductors are embedded therein in one or more layers which have electrical condtinuity from the outer edge thereof to the central opening (this continuity path may extend through one or more layers) and to an equal plurality of conductive pads on the surface of the substrate.

Abstract: A low cost process for fabricating solder column interconnectons for an electronic package is described. The process includes the step of filling an array of pin holes in a pin mold with a lead/tin solder, which array of pin holes is in substantial registration with the array of conductive pads on one side of a chip carrier; heating the lead/tin solder in the pin mold such that the solder becomes molten and coalesces with the array of conductive pads of the chip carrier, thereby forming an array of miniature pins bonded to the array of conductive pads of the chip carrier; joining circuit components to the other side of the chip carrier; and reflowing an eutectic lead/tin solder paste screened to the corresponding array of conductive pads of a circuit board to bond the free ends of the array of miniature pins of the carrier to the corresponding array of conductive pads, thereby forming the solder column connnections between the chip carrier and the circuit board.

Abstract: In a method for manufacturing hybrid integrated circuits, a plurality of circuit patterns are formed on one surface of a board, and a connecting film is stuck onto the other surface of the board. Then, the board is divided into portions having the respective circuit patterns while leaving the connecting film intact and component parts are mounted on the portions. Finally, the individual portions are separated by cutting the connecting film. The circuit patterns may be formed over one surface of the board and covered with a connecting film. The connecting film may be a constituent element of each circuit pattern, such as an insulating layer disposed between conducting layers.

Abstract: An electric shaver having a handle, and a shaver head having a cutting blade, which is movably carried on the handle. A battery and electric motor are mounted in the handle. A drive member on the motor provides reciprocating movement to a pivotally mounted weight member in the shaver head. The arrangement is such that the weight member reciprocates back and forth at a high rate of speed and inparts reciprocatory, simple harmonic motion to the cutting blade carried by the shaver head. The cutting action is characterized by minimal movement in any direction except essentially linearly, substantially parallel to the blade. Improved shearing action of the hairs is realized, together with minimum tendency for pulling or tearing of the skin. Undesirable irritation, and the development of "nicks" are thereby significantly reduced.

Abstract: A safety razor head comprising a guard surface and a cap surface is provided with a plurality of parallel riblets disposed on the head for contact with the surface being shaved, during use of the razor. The riblets may be disposed on the cap surface or on a substantially thin film material extending from the guard surface to the cap surface and are effective to improve shaving comfort.

Abstract: A cutting device is provided which is useful in trimming the jackets from semi-rigid coaxial cables and wire having a cutting bit and support attached to movable jaws. A thumbpiece is provided to actuate the opening of the jaws for receiving the cable to be trimmed, and a spring member is provided to actuate the closing of the jaws when thumbpiece is released. The cutting device utilizes one moving part during the cutting operation by using a rolling cut action. The nature of the jaws allows the cutting device to work in space having clearances less than 0.160 inches.

Abstract: A dietary control eating utensil is disclosed for indicating when food can be eaten therewith. The handle of the utensil includes a gravity-powered timing device. The device includes an elongated transparent material chamber for containing immiscible fluids having different densities such as air and mineral oil. The lighter density fluid forms a visible signal within the chamber that is moveable between the distal and proximal ends. The period associated with the movement of the visible signal depends on the different elevations of the chamber ends. The shape of the chamber along with the density of the two fluids also contributes to the time period the visible signal takes to move between the two ends of the chamber. When the air bubble moves to a predetermined position within the chamber, this indicates when the utensil may be used for consuming food.

Abstract: A pair of scissor segments are connected at a rotation center to be mutually openable and closable. In the one scissor segment, a projection has a stem portion integrally formed on the inner surface of the rotation center. In the other scissor segment, a concave portion is formed in the inner surface of the rotation center. The concave portion are provided with an opening allowing the projection to enter thereinto, and a stem supporting portion rotatably supporting the stem portion of the projection entered into the opening. When both the scissor segments are connected with each other, the projection is not exposed from the outside surfaces of the scissor segments.

Abstract: A tool for measuring perimeters or circumferences of, for example, optical lenses. A base carries a measuring tape fixed at one end to the base and connected at its opposite end to a movable handle. The portion of the tape intermediate its ends forms a variable-dimension loop within which the item to be measured is placed. Movement of the handle in one direction tightens the loop about the item and the size is read on dimensional markings on the tape. The tool is designed to be hand-held and the handle is biased in such direction as to increase the size of the loop so as to render easier the placement of the item to be measured within the loop. The base, in an area substantially in register with the loop, has a cushion for receiving the item to be measured in non-slip fashion.

Abstract: A hinge jig having three longitudinal members and two transverse members all relatively adjustable to the each other with respect to angle and distance. Stop flanges delineate the outer limits for movement of the router bit when cutting a door hinge. The router base is rested directly onto the planar surfaces of the longitudinal and transverse members, which are adjusted to the particular size and shape cut-out desired. The jig can be adjusted to define cut-outs having other than right angles.

Abstract: A level for determining whether a surface is horizontal and which can also be used to determine the angular relationship between the surface or a line on the surface and the horizontal. The level utilizes a rotating pendulum designed with a pointer that indicates a direction representing the vertical. The pointer (or vertical indicator) is biased in this position by a weight (or alternatively a float) and it points to scale markings that calibrate the position of the rotating pendulum to correspondingly represents the angular deviation of the surface from the horizontal. The weight and the pointer are attached by a set screw which allows the weight to be pivoted with respect to the pointer so that the center of gravity of the rotating pendulum as a whole can be altered and the direction in which the pointer points can be adjusted for accuracy.

Abstract: A parallel rule including a rule body, a gripping attachment and two rolling devices which are installed at each end of the rule body. The rolling device has a cylindrical roller and a pair of anchorage portions extending from its end so that the roller is retractable. An opening is provided at each end of the rule body for the roller of the rolling device to project from. By use of the rolling device, the parallel rule is movable.

Abstract: A squaring tool comprising a pair of squaring members with two blades, each of the two blades integrally joined together oriented at 45.degree. with respect to each other; a frame assembly defining a passage therethrough having a cross-sectional shape and size such that one of the blades of both of the squaring members are slidably receivable through the passage; and a locking and alignment mechanism for locking the squaring members in the frame assembly.

Abstract: In the preferred embodiment of the well tool disclosed herein, a main body adapted to be suspended in a borehole includes a pivoted tool-decentralizing arm which is movable between a retracted position along the rear of the body and an extended position where the free end of the arm is biased into sliding engagement with a wall of a borehole for urging the forward face of the body into sliding engagement with the opposite borehole wall. A second body is pivotally coupled on the mid-point of the decentralizing arm for maintaining the second body in alignment with the longitudinal axis of the borehole as the free end of the decentralizing arm moves along the borehole wall. Caliper arms are pivotally mounted on each side of the second body for moving in unison between retracted positions and extended positions where the outward ends of the caliper arms are respectively engaged on opposite sides of the borehole.

Abstract: A plurality of adjustable feelers are mounted to a gage head in front of relatively delicate sensing fingers. The feelers will contact the part before the sensing fingers in the event of part abnormality or improper positioning of the part within the gaging apparatus. In such manner, further movement of the gage head relative to the part can be stopped before the sensing fingers crash into the part thereby preventing damage to them.

Abstract: A method and apparatus for measuring surface irregularities on articles such as curved automotive glass are provided wherein two contact points on a sensor head establish a chord at a segment of the surface and a probe measures the distance of the surface from the chord between the contact points, thereby permitting calculation of the local radius of curvature as the surface is scanned.

Abstract: The addition of registration marks as an aid in projecting a precision location of a screened artwork or master pattern as used in printing of thick film circuits on a ceramic substrate base is taught by the present invention. The marks are located in a number of locations on the artwork that correspond to a location which will be determined as the edge of the substrate base when the substrate base is printed in proper registration on the artwork to which the registration marks have been added.

Abstract: A tape measuring device comprising a graduated tape wound into a housing on which is mounted a holder for a marking device such as a pen or pencil. The holder comprises an arm hingedly mounted to the housing of the tape measuring device and defining a seat for receiving the pen or pencil such that the marking tip of the pen or pencil extends adjacent a longitudinal edge of the graduated tape when the latter is pulled from the housing.

Abstract: A first wheel mechanism and rotation detecting means for detecting rotation of the first wheel mechanism are provided within a casing. A second wheel mechanism for measurement is movable provided at the casing. The second wheel mechanism is located in a non-detecting mode at such a place as not to protrude outside the casing. When moved by a moving member, however, the second wheel mechanism partially protrudes from the casing and the rotation of the second wheel mechanism can be transmitted to the first wheel mechanism, whereby the rotation of the second wheel mechanism can be detected by the rotation detecting means.

Abstract: A grip demoisturizing device for a sports racquet, or the like, has a normally closed tubular container containing a moisture absorbing powder and a self-closing, elastically yielding flap valve for admitting the grip into the container. A described embodiment has an apertured tubular partition located coaxially within the container and spaced therefrom by apertured discs, with powder being stored in an annular region and the diameter of the partition being chosen so as to provide a "pump" and "swab" action to provide an additional measure of neatness in dispensing the powder onto the grip.

Abstract: An automatic hand dryer contains a heating element and a motor which drives a squirrel cage fan. The fan exhausts air past the heating element to a downwardly-directed outlet. A base or mounting plate is adapted for flush mounting to a wall. The axis of the fan is perpendicular to the base plate and wall to which the dryer is attached. A control or sensing circuit emits signals to a detection zone beneath the outlet and monitors the zone for reflected signals indicative of a user's presence. The circuit operates to energize and deenergize the power circuit to the fan motor and heating element. Upon detection for a predetermined period, the circuit energizes the power circuit. The control circuit deenergizes the power circuit upon interruption of the reflected signals for a predetermined period, or after a predetermined maximum time period of continuous detection. Under the latter condition, the stimulus reflecting the emitted signals must be removed from the detection zone to reactivate the control circuitry.

Abstract: A grain column dryer which includes two concentric, cylindrical pervious walls and a pervious cone on top of the inner pervious wall, utilizes an impervious, heat insulated, cylindrical outer wall spaced outwardly from the pervious walls. A heater/blower assembly is supported on a substantially airtight impervious bulkhead in the center of the dryer to force heated air into an upper heated plenum and out through the concentric pervious walls and the pervious top cone, and to thereby draw air through lower portions of the pervious walls. A hottest air recycle collar is attached to the outer pervious wall above the bulkhead baffle and extends, in spaced relation to the outer pervious wall and to the outer impervious wall, to position well below the bulkhead baffle.

Abstract: In a method of drying a photographic light-sensitive material by use of drying air, the amount of light-sensitive material which can be processed within a predetermined time at a set temperature of the drying air is compared with the totalized amount of the light-sensitive material to be actually processed within the predetermined time, and, on the basis of the result of this comparison, the set temperature of the drying air can be adjusted. An apparatus for drying photographic light-sensitive material by use of drying air is arranged so that the amount of light-sensitive material to be actually processed within a predetermined time is detected by a detecting sensor and the thus-detected amount is compared with the amount of light-sensitive material which can be dried.

Abstract: The present invention pertains to a structure resistant to the transmission of forces of impact which is useful in the fabrication of articles subjected to impact forces by the user of the articles. The structure includes a double plush-like open mesh structure having first and second layers of interlaced stretch-resistant flexible strand material positioned adjacent each other, and defining an intermediate space therebetween. A plurality of elongated partitions are disposed between the first and second layers and divide the intermediate space into a plurality of elongated generally parallel channels. The partitions each comprise a plurality of pile stretch-resistant strand material connecting with the first and second layers in a plane generally perpendicular to the first and second layers.

Abstract: An improvement in footwear consisting of sandal footwear having an interior plenum adapted to contain sand or other granular material, the sand providing a natural environment walking surface for the bottom of a person's foot. The footwear has a lower shell and attached bottom sole to form a cuplike shell with upraised heel part, and an upper cover joining the lower shell and covering the front top portion of the footwear to form with the lower shell the plenum leading to the ankle inlet/outlet mouth. Situated interiorly to the enclosed plenum upper cover is a toe pad providing a defined spacial clearance between itself and the persons's toes, the pad adapted to be engaged by the foot when the foot lifts the footwear for purposes of retaining the sandal upon the person's foot while being moved.

Abstract: A sport shoe is provided having a circular cleat array disposed about but not directly beneath the metatarsal joint of the great toe. The shoe sole also includes a flex area in the region of the metatarsal joints. This combination permits flexure of and cradles the metatarsal joints on impact. Furthermore, the sport shoe preferably includes a toe drag element defined forwardly and upwardly of the metatarsal cradle and on the interior edge as a lip extending onto and over a portion of the shoe upper. The toe drag element protects the material of the shoe from the effects of toe drag while minimizing any reduction in flexibility of the shoe.

Abstract: An arrangement for retaining a skier's foot within the shell base of a ski boot, comprising one or more tongues integral with the inner sides of the shell base, extending transversely to the longitudinal axis of the boot and at least partly surrounding the top of the foot. The tongues fold down along a drop line in a plane above the heads of the metatarsals and the malleoli, and are located between two planes secant to the plane of the boot sole and passing through the heads of these bones. Actuation of the tongues relative to the foot takes place from outside the boot.

Abstract: A trench digging apparatus which is provided with a safety shield shaped to direct dug dirt back into the trench. The trench digger is also provided with a cable laying device which lays the cable in the dug trench ahead of the refilling dirt. A pipe pulling attachment may also be provided for laying a pipe while digging and refilling the trench.

Abstract: An apparatus for dredging using a pump which forms a highly pressurized, rotating stream of liquid which is directed down the inlet conduit to a discharge and the momentum and energy of the rotating stream is transferred to the solids and liquids, suspending the solids to agitate and separate the same to make the solids more easily suspended. The agitated solids and liquids flow upwardly in a counter-flowing outer annular stream around the downward flowing, rotating stream. The pump is very lightweight as compared to conventional centrifugal dredging pumps and is operated at high speeds, for examble 1,000-2,000 rpm to eliminate the usual speed reducers to prevent cavitation when using the centrifugal pumps.

Abstract: Framing apparatus for framing snap shots and the like, including a flexible rectangular-shaped transparent sheet having an opaque frame printed about its perimeter. A pressure sensitive adhesive coating is coextensive with the aforementioned opaque frame. A transparent sheet of much thinner gauge than the first-mentioned sheet is releasably secured to the pressure sensitive adhesive coating. The unassembled frame is moved about the snap shot or picture to be framed. The transparent nature of the assembly facilitates viewing of the picture therebeneath, enabling the user to select any portion of the picture. A writing instrument may be employed to form an outline of the frame on the picture, or the thin gauge cover sheet may be removed and the photograph pressed against the heavy plastic sheet. The portion of the picture extending beyond the frame is cut away from the part of the picture being framed.

Abstract: An identification band comprising a backing strip having pressure-sensitive adhesive thereon, two release strips on the adhesive, and an overlying transparent strip including a tongue extending at one end of the backing strip, the transparent strip being secured to the backing strip by the adhesive, one release strip being removable for application of a pre-printed insert to the backing strip, the insert then being covered by the transparent strip, the other release strip being removable for adhering the tongue to the backing strip at the other end thereof.

Abstract: A rectangular frame made up of inwardly facing channels embraces upper and lower panels of relatively rigid light-weight porous or foam material capable of receiving pins, etc., to serve as a bulletin board. One edge of the frame has a pair of vertically spaced ears apertured in vertical alignment for attachement to a door via the hinge pins of the door hinges. The frame is cross-braced at about its midpoint and the cross brace serves also to retain the upper of the two panels against downward shifting.

Abstract: A breech load pistol and conversion kit which may be adapted to the frame of a semi-automatic pistol, such as a Government 0.45 pistol. The present invention may provide a modified slide which is slidably mounted to the pistol frame and is adapted to include a pivotable barrel assembly mounted thereto. The barrel preferably is suitable for target pistol accuracy. The barrel assembly may be pivoted exposing the breech end for single shot loading for target shooting applications. The conventional semi-automatic pistol magazine or clip may be replaced with a modified clip acting as a breech release actuator having a lever mechanism which is operable to release a latch holding the barrel assembly in engagement with the slide. The present invention also provides a pistol with a gas relief port. The present invention further provides a rim ejector for ejecting spent cartridges using a camming action occurring during pivoting of the barrel assembly to a loading position.

Abstract: The present invention provides an apparatus which allows cocking of the hammer of a gun whenever a gun is utilized with a casing which encases the upper rear portion of the gun preventing manual access by a user directly to the hammer itself. The apparatus of the present invention includes a cocking bar and a cocking lever both movably mounted with respect to the casing such that downward movement of the cocking lever will facilitate downward movement of the cocking bar causing cocking movement of the gun hammer itself without requiring direct access to the hammer surface by the user. Preferably the cocking bar is movably mounted within left and right cocking slots defined in the side walls of the casing. Resilient spring biasing means are preferably positioned adjacent each slot to facilitate movement of the cocking bar to the steady state uppermost position whenever downward pressure is not being exerted upon the cocking lever itself or upon a tab extending outwardly from the rear section thereof.

Abstract: A device for testing the hooking effectiveness of a fishing lure, comprising a frame, a pair of jaws representative of the jaws of a fish mounted on the frame for movement of the jaws toward and away from a closed position, and a resilient mechanism urging the jaws toward their closed position. The arrangement is such that a fishing lure comprising a head and a trailing hook is adapted to be pulled, head first, through the jaws with the jaws moving away from their closed position as the head passes between the jaws and thereafter moving under the bias of the resilient mechanism back toward their closed position. The trailing hook is adapted either to hook one of the jaws indicating that the lure is generally effective for hooking fish or to pass between the jaws without hooking one of the jaws indicating that the lure is less effective for hooking fish.

Abstract: A trawl net with buoyant-force generating member whose angle of elevation in the vertical direction can be adjusted while the trawl net is being dragged or towed and by varying the angle of elevation, the trawl net can be raised or lowered to a desired depth with a high degree of response.

Abstract: A fishing system in which removable line connectors can be attached to a lure that is to be pulled through the water to attract a fish. The connectors can be connected to the lure in various ways. The heads of the connectors are preferably eccentrically mounted on a stem of the connectors so that the fishing line, when threaded through the head, will have a different pull angle, depending on the orientation of the head in the lure. The connectors are ideally used with a lure having a bend and a twist and a distinct forward and rear end. The connectors can be removed and repositioned on this type of lure to change the action of the lure through the water. The invention includes a method of removing and reinstalling these lures to change the action. Various additional attachments can be provided in combination wiht the connectors. The invention includes apparatus for changing weights using connectors.

Abstract: A fishing lure having a lure body which is soft and flexible for use with various hook carrying rigs. The body is elongated and includes a head portion and a tail portion. The head portion is generally cylindrical and the tail portion semi-cylindrical with a generally flat lower surface, the transition between the head and tail portion defining a generally straight line which extends transversely over the flat surface of the tail portion.

Abstract: A fish lure comprising a flexible body of conical shape having a passageway beginning at the apex thereof and terminating in a cavity at an enlarged open end of the body. The body is adapted to have assembled therein in the cavity a hook member, a sinker and a tail. The hook member includes one or more barb elements having outwardly radially and rearwardly extending portions, a shank and an eyelet preferably with sinker and tail mounted thereon. As an assembly, the hook member, sinker and tail are disposed within the cavity of the body with the eyelet arranged axially innermost of the cavity adjacent the passageway and has a fishing line extending through the passageway into attached relation thereto. The assembly forms a compact package with the body with only a streamer portion of the tail and the barb elements exposed axially outwardly of the body. The barb or plurality of barbs are arranged in close embraced relation on the enlarged end of body.