Abstract: The invention is a method for continually adjusting fastener drilling and installation in response to part growth during assembly of certain aircraft components. A series of normal installation locations are initially selected where fasteners are to be sequentially installed one at a time. Part growth is monitored at a certain reference point ahead of the advancement of fastener installation, and is sensed immediately after each installation. The position of the next-in-line installation is adjusted proportionately to the part growth which resulted from the previous installation, and so on, until the series is installed.

Abstract: The invention pertains to a method of installing a grip on a hand held implement. The method includes the steps of providing a grip with a tubular body, closed end, open end, and cup-shaped flange about the open end, deforming the flange so that is is spaced from the tubular body and forms a gap therewith; stretching the flange over a collar of a vacuum chamber; exposing the grip to a vacuum; inserting the hand held implement into the grip; releasing the vacuum; and then severing the cup-shaped flange from the grip.

Abstract: A method is disclosed for manufacturing a double-walled hollow lost casing for use in the production of marine engineering civil works having inner and outer walls each made of pre-cut plates of such size and shape that the lost casing has a polygonal cross-section throughout its height. The method includes the steps of assembling a jig by interconnecting a plurality of standard frames stacked upon each other to a desired height which together present an outer surface generally corresponding to a wall of a lost casing to be produced, assembling on and releasably attaching the pre-cut plates to the outer surface of the jig and seamlessly joining the assembled plates, and then releasing the completed wall from the jig.

Abstract: A machine tool is provided having a wide range of applications and uses in metal or other material fabrication. Such machine tool may be utilized on reactor flanges, pipes, and other equipment. The machine tool is pneumatically actuated and may include a vertical spindle on which may be attached a grinder, brush, or other apparatus for polishing, grinding, or contouring a workpiece. A pneumatically driven mechanism for the machine tool includes a plurality of worm gears positioned and arranged for selective rotational speed and tongue of the spindle of such tool. Essentially, the machine tool or universal tool combines functions achieved with a plurality of known tools in a single unitary tool assembly having reliability, simplicity, economy, and durability.

Abstract: An improved automated method for the manufacture of alternatively sized passive transponder devices is presented which utilizes a single leadframe design and manufacturing process, including automated coil winding and wire-to-lead termination. A specially designed leadframe is prepared, with augmented leads, and is coated with a thin layer of silver. One or more semiconductor chips are bonded to individual assembly sites on the leadframe, after which the lead-die assembly is encapsulated by transfer molding. The cap and leads are singulated, and a bobbin is attached to the leads, which extend laterally from each individual molded cap. In an automated process, a conductive wire is attached to a first of the protruding leads, fly-wound around the bobbin core, and terminated by connection to a second of the protruding leads.

Abstract: Method for fabricating a laminated coil conductor for a high current coil which includes wrapping a layer of insulation around a rotatable shaped mandrel and then winding a plurality of copper sheets over the insulation as the mandrel is rotated. Solder is interposed between the copper sheets and between coolant tubes positioned on each end of each coil conductor. The assemblage is then removed from the mandrel and raised to a temperature to bond the copper sheets and coolant tubes together. The assemblage is then placed in a structural box and a plastic is injected into the box to fill any voids between the coil conductor and the box.

Abstract: This method is practiced by first providing a plurality of spools of amorphous steel strip in each of which the strip is wound in single-layer thickness. Then, in a pre-spooling machine, the single-layer thickness strips are unwound from said plurality of spools and combined to form strip of multiple-layer thickness which is wound to form strip of multiple-layer thickness which is wound onto a plurality of master reels, on each of which the strip is wound in multiple-layer thickness. These master reels are then placed on a plurality of payoffs, and the multiple-layer thickness strip is unwound from these payoffs and combined into a composite strip that has a thickness in strip layers equal to the sum of the strip layers in the combined multiple-layer thickness strips. Then the composite strip is cut into a plurality of sections, or lengths, of composite strip, and with these sections a hollow core form is constructed, which form has a window about which the sections are wrapped.

Abstract: A method of providing a through-hole connection between conductive layers of a multilayer circuit board assembly whose thickness is liable to expansion and contraction is described. The method includes inserting into through-holes in adjacent boards a tubular flexible conductive member and expanding that member in a position intermediate its ends to engage the through-holes. The boards are then urged together to further expand the tubular member so as to retain that member in the through-holes. Typically the conductive member comprises a tubular braid.

Abstract: A method for affixing pins to a ceramic substrate substantially eliminating cracking of the substrate by pre-bulging the pin blanks and, then after inserting the pin blanks into the substrate, a clearance is provided between the lower pin holding die and the lower face of the substrate for the subsequent head forming operation on the opposite face of the substrate.

Abstract: A catheter sensor assembly and support has a member with a distal end and a proximal extension joined by an intermediate part. An open passage extends along the proximal extension and across the intermediate part to carry a sensor overlaying the passage. Conductors attach to the sensor bottom for transmitting signals from the sensor through a catheter lumen. An adhesive sealant secures the sensor to the intermediate part near the distal end so that the passage remains open between the lumen and the bottom. A method for assembling and supporting a sensor at a distal end of a catheter tube includes steps of attaching a sensor with an area toward an end connected to electrical conductors, placing a tube in the passage to provide a passageway between the lumen and the sensor, mounting the sensor to the member overlying the passage, inserting the proximal extension into the lumen with the electrical conductors passing through the lumen and sealing the sensor to the passage.

Abstract: A mechanically-bonded, monolithic sealing ring is provided for a stuffing box of a high temperature, high pressure valve or pump. In this ring, the components are pre-united by axially squeezing together originally separate center and end rings in a die assembly of a hydraulic press. By preference, the two axially extreme portions of the monolithic ring are made of braided graphite and the axially central portion of the monolithic ring is made from spirally-wrapped foamed flexible graphite tape which, in the course of die-foaming the monolithic ring, is axially compressed thereby densifying it and mechanically bonding it with the end rings. The monolithic ring is easily installed in a stuffing box in one piece.

Abstract: Process for producing a cap flange structure, particularly a sinewave I-beam structure comprises joining together a pair of metal sheets in a predetermined area spaced from the opposite outer edge portions of the sheets, and leaving the area between the adjacent sheets along the two opposite edge portions unattached. The joined together portion of the resulting assembly is formed into a sinewave configuration which forms the web of the I-beam structure. The unattached edge portions of the assembly of adjacent sheets is introduced into a die cavity and the die cavity is heated and a gas under pressure is inserted into the area between the sheets of the unattached edge portions, and expanding the sheets of the unattached edge portions into the shape of the die cavity against the wall of the cavity by an accordion expansion without any substantial stretching or thinning of the sheets, while simultaneously moving such sheets in the die cavity.

Abstract: A resilient sealing means is provided in an electric dry shaver to restrict the entry of shaver cuttings and foreign debris into the interior of the shaver housing. The resilient means is positioned in an aperture of the housing through which the short hair cutter and hair trimmer actuating members extend. The resilient sealing means includes apertures through which these members extend and fits snugly with the members. The sealing means seals the housing in top wall segments and side wall segments.

Abstract: A razor assembly of the wet-shave type comprising a razor handle, a head portion extending from the razor handle, the head portion having therein a cavity therein. A spring retention chamber disposed in the handle portion, and a spring member comprising a foot portion retained by the spring retention chamber, a stem portion connected at a first end to the foot portion, the stem portion extending from the foot portion toward the head portion, a flange portion fixed to a second end of the stem portion, and blade assembly connector structure on the flange portion, said connector structure being connected to a blade assembly disposed in the cavity, the spring member being adapted to facilitate pivotal movement of the blade assembly during a shaving operation, the spring member being operative to urge the blade assembly to a neutral position in the razor head cavity.

Abstract: Disclosed is a tool for making precise radial slits in the exterior of a cylindrical object, such as a coated optical waveguide filament. The tool has an interior passage and two blades to make radial slits. The blades are kept from penetrating too far into the interior passage by shims having a calculated thickness dependent on the angle separating the blades and the size of the interior of the object which is to be left uncut.

Abstract: An improved saw bar and a chain sawing assembly includes a frame which houses a drive engine or motor and receives the saw bar, an endless cutting chain, and a sprocket mechanically coupling the drive engine to the cutting chain. The saw bar includes a bar member having a slot formed therein through at least a portion of the thickness of the bar member, with the slot extending from an attachment end to a nose end of the bar member. The saw bar also has a channel assembly, such as a tubular channel assembly, positioned in cooperation with the slot to deliver fluid from the attachment end to a channel outlet. In one embodiment, the saw bar has an idler sprocket pivotally mounted within a sprocket mounting slot formed at the bar member nose end. The channel outlet opens into the sprocket mounting slot to deliver lubrication fluid to the sprocket teeth. In an alternate embodiment, the channel outlet comprises a plurality of apertures along the length of an exposed wall of the channel member.

Abstract: A hair clipper includes a cutter head and a hair entrapping member which is movable toward and away from a cutting edge of the cutter head. The cutter head comprises a stationary blade with a toothed edge defining a cutting edge of the cutter head and a movable blade with a like toothed edge. The movable blade is driven to reciprocate in shearing engagement between the toothed edges of the stationary and movable blades for shearing hairs therebetween. The hair entrapping member is preferably in the form of a comb which is movable between an open position and a closed position. In the open position the comb is spaced away from the cutting edge of the cutter head, thus permitting hairs to enter between the comb and the cutting edge. In the closed position, the comb is held close to the cutting edge to thereby seize the hairs therebetween for shearing the hairs.

Abstract: A power driven hair trimmer appliance is fitted with a demountable comb attachment having a supporting segment of similar but larger configuration than the appliance. A plurality of discrete pressure pads are provided for fitting the comb to the appliance so that the comb may be adjusted to any position between predetermined maximum and minimum positions of trim length. At any operating position of the comb, trimmed hair will fall away from the appliance thereby eliminating the need to periodically interrupt trimming operations for cleaning the appliance.

Abstract: The present invention is directed to a wallpaper border marker-cutter device which is used for marking walls for borders and/or for trimming wallpaper, at a preselected level below a ceiling. The device includes a base which has a substantially flat face surface and is of adequate thickness to support wheels. Additionally, it has a protruding member extending outwardly from the face surface for receiving a slidable combination marker and blade holder(s). There is a first plurality of wheels mounted on the base in a plane at about 90 degrees to the face surface of the base for rolling the device along a wall as well as a second plurality of wheels mounted on the base plane parallel to the face surface of the base for rolling the device along a ceiling and in combination with the first plurality of wheel for rolling the device simultaneously along a wall and a ceiling.

Abstract: The reciprocating saw incorporates a counterbalanced reciprocating drive having a jackshaft on which primary and secondary wobble plates are mounted. The wobble plates drive a reciprocating saw spindle and a concentric counterweight in opposite directions to cancel out the induced vibrations. The spindle reciprocates in a bearing sleeve having a slot through which the primary wobble arm projects to drive the spindle. The primary wobble arm projects through a longitudinal slot in the spindle and engages the opposite side of the spindle so the spindle cannot rotate as it reciprocates. The counterweight slides on the outside of the sleeve and has a slot which slides over the primary arm. The secondary arm drives the counterweight. The arms are out of alignment to permit their strokes to overlap without collision. The wobble plates are angled out of 180.degree. so the spindle and counterbalance reverse at the same time. The cutting stroke and speed are increased and vibration is insignificant.

Abstract: A tool guide temporarily attachable to vehicle body panels or other surfaces to provide a straight edge, and a contour sander for use in connection with a straight edge. The tool guide includes an elongated member having a longitudinal edge surface for guiding a work tool, and suction cups mounted on tongues extending laterally from the body of the tool guide. The tongues are angled in relation to the body, so that the tongues exert a cantilever force urging the tool guide against a surface when the tongues are secured against the suction cups. The contour sander includes a number of flat blades mounted side-by-side and each having a longitudinal edge for contacting a contoured work surface. A clamp holds the blades in parallel juxtaposition and selectively loosens the blades for conforming contact with the contour. Finger grips are formed at the ends of the blades, allowing the operator to raise or lower any particular blade and obtain a sharper or more accurate reproduction of contour if desired.

Abstract: A multipurpose ruler to permit a user to precisely draw geometric shapes as well as to store information including a housing having a rotatable roller with multiple information areas and an alignment mark to permit the user precisely align the ruler for accurately drawing geometric figures. A retractable pivot pin permits the user to draw circles about the pivot pin and a transparent housing permits a user to readily view information stored on the ruler.

Abstract: A combined pipe chamfering tool and ovality gauge. One or more ovality gauge(s) is/are rotatably mounted on a chamfering tool. The gauges may serve to gauge different-size pipes to a given ovality standard or a given pipe size to different ovality standards.

Abstract: A length or angle measuring apparatus which measures the relative position of two objects comprises a scale attached to a first object to be measured and a scanning unit which has at least one scanning element connected to the second object to be measured, wherein the second object and the scanning unit have different thermal expansion coefficients. The graduation of the scale is scanning by a scanning element of the scanning unit at a scanning point. Fastening means are provided which fasten the scanning unit to the second object to be measured, such that the scanning point of the scanning element of the scanning unit has no zero point displacement with temperature changes.

Abstract: A graphic calculator (10) for use in technical drawing has means for selectively displaying one of a plurality of sets of division markers wherein each set corresponds to a set of scaled division markers of a particular scale rule. Such a calculator effectively provides a scale rule whose divisions may be altered as desired.Also disclosed is an electronic protractor having a transparent cross-hair viewer for accurately locating the protractor over the lines forming the angle to be measured and means for recording the point at which at least one of said lines extends from under a measuring edge of said protractor.

Abstract: A dryer has a container holding goods to be dried, suction and exhaust ducts communicating with the container, a blower forcibly blowing air through the suction duct, the container and the exhaust duct and a heater for heating air flowing through the suction duct. An absolute humidity sensor is provided to measure a degree of absolute humidity in exhaust air flowing through the exhaust duct. Drying generation of the dryer is interrupted when a measured degree of absolute humidity of the exhaust air and a degree of absolute humidity in the surrounding air has a predetermined relationship.

Abstract: A method and apparatus for regulating drying kiln airflow by disposing within drying kiln walls 1 one or more inflatable baffle bags, such as top bag 10, bottom bag 20, side bags 30, or end bags 40. Inflated baffle bags engage a stack of product 2 in such a way that drying airflow directed through the drying kiln flows through product stack 2, and not around it.

Abstract: Apparatus for drying or curing a coating on a metal substrate comprising an induction coil arranged in a generally cylindrical configuration, a cooling coil arranged in a cylindrical configuration, generally cocylindrical with and spaced from the induction coil, thereby defining a receiving volume therebetween for removably receiving a generally cylindrical coated metal substrate, a top member sealing the top of said receiving volume and apparatus for selectably inserting and removing a coated metal substrate from the receiving volume.

Abstract: An improved filter-box positioned on a spin dryer is disclosed, which has a ceiling plate, a bottom plate and an annular filter provided between the ceiling plate and the bottom plate. The inner area of the lower surface of the ceiling plate within the filter is downwards convex so that the center of the inner area locates at the lowermost portion thereof. This convex form of the lower surface ceiling guides introduced air to the central lowermost portion of the same and prevents fine dust from accumulating on the lower surface of the ceiling plate. A static electricity removing member is mounted on the lowermost portion of the ceiling plate. The member includes an ionizer to effect the ionization of the introduced air, guided by the convex surface.

Abstract: A drying end which comprises a plurality of drying groups. Referring to FIG. 2, each drying group has its own endless support belt (171-175) which travels together with the web alternately over drying cylinders (101-138) and guide rollers. In each drying group, at least some of the drying cylinders lie in a row of cylinders (161-168) which is arranged approximately vertically. Within the first drying group (160/161) the web travels downward through a vertical cylinder row (161), the lower side of the web contacting the cylinders. In the second drying group (162/163), the web first of all travels upward, the upper side of the web contacting the cylinders. At least two drying groups have two vertical cylinder rows (162-167). Referring to these later two groups, the rows of guide rollers in one drying group are arranged outside the corresponding cylinder rows, and in the other drying group the guide rollers are arranged inside the cylinder rows.

Abstract: A drier racking system for use in drying produce in a barn which includes an endless conveyor to which are attached a plurality of containment devices. The conveyor extends from a door of the barn to an inner region of the barn. The containment devices open, or are openaable, when positioned near the door and produce can be loaded, into or be removed from, the devices.

Abstract: Inner lining (1) for a ski boot, comprising at least one part of relatively rigid, compact synthetic material lined, on the inside, with a synthetic material of lesser rigidity (4). The relatively rigid synthetic material possesses at least one cut-out (5, 6) of continuous contour so that the rigid part adapts better to the morphology of the foot or of the ankle.

Abstract: The present invention relates to a multi-shaft kneading auger system having a plurality of kneading shafts or rotating shafts used to form a continuous wall in the ground. Grouting blades driven by chains, are positioned near the lower ends of the kneading shafts. A grouting edge of the blade forms a predetermined angle with the surface of the kneading shafts. Also, a scraping apparatus is formed in a part of the rotating shafts. The scraping apparatus comprises a supporting member laterally supported in the part of the rotating shafts, plain blades vertically movably supported on the supporting member and substantially located on common tangential lines of the rotational surfaces of the grouting blades, a coupling member including rollers and laterally coupling the plain blades, and cams provided in the part of the rotating shafts and adapted to engage with the rollers.

Abstract: To ease the mounting of a snow plow structure by use of a measured means extending between the attaching structure fixed on a vehicle and its lift chain to bring the hitch pin holes of plow structure push arms into vertical alignment with pin holes on attaching structure as the plow structure is lifted from its center of gravity and in fore and aft balance. Little movement, if any, of the lifted plow structure will be needed to transversely align pin holes for the full insertion of the hitch pins. A single pull cable is connected to two spring actuated hitch pins to pull them from the pin holes on the vehicle mounted attaching structure when connecting the plow structure thereto. Upon release of the pull cable the pins will enter the transversely-aligned pin holes of the structures. All this having been done with little manual effort.

Abstract: Snowplow apparatus is provided having a blade assembly and elongated tongue secured at one end to the blade assembly and having a connector device at the other end for detachably securing of the tongue to a single-point hitch assembly of an automotive vehicle whereby the tongue may oscillate in a vertical plane about its point of attachment. A stabilizing mechanism secured to the tongue in axially spaced relationship to the connector device detachably connects with the vehicle to prevent oscillation of the tongue about its point of attachment to the hitch assembly of the vehicle in a horizontal plane. The blade assembly is provided with lift units automatically operable upon traversing movement of the blade assembly over a ground surface to be cleared of snow accumulation to lower the blade assembly into plowing relationship when moved in a direction effective for plowing and to lift the blade assembly a distance above the ground and support it for transport when moved in an opposite direction.

Abstract: A badge for wearing on one's clothes or on any other surface, made of a body layer of synthetic foam and material of the type having no memory when compressed, the body layer carrying an image on its front face and fastening means at its back face. The body layer has a marginal portion of smaller thickness than that of the central portion of the body layer, with the foam material exposed at the periphery of the body layer.

Abstract: A display frame for visually exposing, during times of storage, the artwork of an album cover in which an audio recording is sold. The display frame is equipped with a quick response access frame gate manually movable between closed and open positions for respectively containing and accommodating rapid insertion, removal or exchange of an album cover, with or without the audio recording contained therein.

Abstract: The present invention relates to a display device with a movable element. The movable element is driven between ON and OFF positions by switching the polarity of a first high remanence magnetic core. A reed switch is located in the flux path of the switchable magnetic core and of a second magnetic core such that the reed switch assumes open and closed states. The reed switch is connected so that one state turns on or exposes a light source and the other state turns off or masks the light source.

Abstract: A modular mass display replica of a selected prepackaged product is disclosed that includes a plurality of vertically stackable display sections, each section having a four-sided prism configuration and a predetermined height, depth and width functionally related to a preselected number of the packaged products to be displayed in each of the display sections. Each of the sections is rigidly formed of a preselected plastic material, the outer vertical surfaces of each of the sections replicating the typical external visual trade dress of the preselected pre-packaged product for visually portraying or replicating the preselected number of products stacked in contacting relationship based upon the predetermined height, depth and width functionally related to the preselected number of the products to be displayed. The display sections may be attached to each other to permit removable vertical stacking of each of the sections and prohibit relative horizontal movement between adjacent ones of the sections.

Abstract: A sign having a face bearing an informational legand thereon, the face comprising at least one legend portion and at least one background portion, and the sign comprising at least one legend segment and at least one background segment, which segments are defined by the legend and background portions, wherein at least part of at least one of the legend and background segments is retroreflective and translucent. The segments of the signs which are translucent and retroreflective exhibit increased luminance under adverse lighting conditions, thereby increasing the conspicuity and legibility of the sign.

Abstract: The present invention relates to a trigger lock that is attachable to the trigger of firearms to prevent accidental discharge. The trigger lock comprises a pair of spaced apart pins that are attached to and extend normally from a plate, the pins being sized and configured to be received by axial apertures within a pair of cylinders that are attached in spaced apart relation and generally normal to the first side of a base. A pair of second apertures extend from the second side of the base to intersect respective first apertures. The second apertures have a larger circumference than the first apertures to define a ledge at each intersection. A nub is attached to at least one pin proximal to the free end of that pin and the nub is releasably engageable with the ledge within the cylinder locking the pins in the cylinders.

Abstract: An accessory that permits replacement of the factory-supplied one-piece standard plastic handgrip by a personally selected or customized two-piece handgrip consists of a block having a laterally-extending hole sized to accept a laterally extending pin used for retaining the block to the frame of the hand gun and further includes laterally-extending threaded holes for receiving screws that are used for securing the two pieces of the personally-selected two-piece handgrip to the frame of the gun.

Abstract: A gun rest is formed from a sheet of resilient plastic foam material which is adapted to be vertically disposed on one edge thereof with the upper edge having a plurality of grooves formed therein of varying depth for receiving and snugly holding the forearm of a rifle therein. A vertically extending slit is formed in the bottom surface of the sheet which is adapted to fit over the top edge of a motor vehicle window glass and blind slits are formed in a front face of the sheet into which individual ammunition cartridges may be pressed and securely held.

Abstract: A cleaning apparatus for a gun or pistol which cleaning apparatus has a base and a vise for securing the barrel of the gun in parallel relationship to the base. A cleaning rod is positioned axially with the barrel of the gun and slideably attached to a mounting which is affixed to the base. A stiffening rod is likewise slideably attached to the base through the same mounting used to support the cleaning rod. One end of the cleaning rod and the stiffening rod is coupled to a crank, so that rotation of the crank will move the cleaning rod into and out of the barrel of the pistol being cleaned. The vise used to support the pistol is rigidly secured to the base through either a slot or a rail. Apparatus is provided for varying the full stroke of the cleaning rod to accommodate various length barrels.

Abstract: A fish hooking device where a rod holder is hingedly mounted on a top side of a base support member. The rod holder is spring loaded with a coil spring connected between the rod holder and the base. The rod holder being movable from a normal, generally vertical, position to a cocked, generally horizontal, position. A trigger mechanism is provided to release the cocked rod holder so that the rod holder may swing upwardly to the normal, generally vertical, position to hook the fish. An adjustable connecting means is provided for connecting the coil spring to the base. The coil spring may be adjusted to control the force acting to rotate the fishing rod upwardly, and to control the force required to release the trigger.

Abstract: A portable knockdown fishing rig which includes a base, a fishing rod support, a flag and staff having its lower end mounted to the base and its upper end adapted, in a flexed condition, to be loosely engaged to a line responsive triggering mechanism also mounted to the support. A pulling force exerted on the fishing line causes the triggering mechanism to release the flag staff thus indicating the catch of a fish. In one embodiment, the upper part of the support is so shaped as to oppose tilting of the entire fishing rig when an important pulling force is exerted.

Abstract: A sound producing fishing lure having an elongated body secured to a hook and a pair of bendable arms. Rod members attached to the arms rotatably support spinners that intermittently hit each other to produce fish attracting sounds. The arms are bendable to change the relative lateral positions of the spinners thereby change the sounds producing characteristics of the lure.

Abstract: A combination minnow and fish preserving container having a first section for containing water and minnows and a second section for containing water and a refrigerant, such as ice, and caught fish. The sections are separated by a thin wall cold conducting partition. The container is formed of insulated structural foam and has a substantially airtight lid portion defining when inverted molds for freezing suitably shaped blocks of ice. The container in use will maintain water and minnows at a temperature below 40.degree. F. whereby minnows in the first section are subjected to a substantial slowing of metabolism and are able to survive for a period of two weeks due to the insulating effeciency arrangement of the cold conducting partition and the substantially airtight closure. When transported to a fishing location, the catch is positioned in the second section where they are suitably refrigerated to maintain freshness for a desirable length of time.

Abstract: A small animal trap of a type which can be economically produced and is constructed so that the user can discard it with the captured animal without any exposure to the animal. The trap is in the form of a thin-walled enclosure of resilient plastic with a door flap being formed in the surrounding wall by slits with a portion of the wall adjacent the wall being integrally attached to the door flap so that the resiliency of the plastic allows the door to be bent inwardly to an animal admitting condition but is normally biased to a closed condition in which it is flush with the surrounding wall. The trip member, which may be made separate to the enclosure, is provided for holding the door flap in the open condition and is connected to the door flap or wall in a manner to readily become disconnected if it is slightly moved by an animal entering or by the animal's activities within the enclosure.

Abstract: A device (10) for assisting in the safe setting of traps (12) is disclosed including an elongated handle (34) and a portion (36) for removable engagement with the cross bar (32) and arm (23) of the striker (16) of the trap (12). The removable engagement portion (36) includes a hook (38) for slideably receiving a length of the cross bar (32) and a finger (46) for abutting with the arm (23) at a point located on the opposite side of the striker (16) than the lip (40) of the hook (38) and in a nonlinear position relative to the connecting leg (44) of the hook (38). The device (10) may be positioned to overlie the striker (16) in its first, trapping position and then pulled outward to pull the lip (40) of the hook (38) beneath the cross bar (32) and with the finger (46) overlying the arm (23) of the striker (16). When the handle (34) is raised, the device (10) will pivot about the cross bar (32) inside of the hook (38) until the finger (46) abuts with the arm (23).