Abstract: An ejection port cover for a firearm which moves in pure rotation about an axis parallel to the bore of the firearm. The port cover is held about this axis and is oriented in the "open port" and "closed port" rotational position for proper alignment of a port cover cam with associated cam pin means on the reciprocating slide assembly since the port cover is shorter than the stroke of the slide assembly that engages and causes rotation of the port cover.

Abstract: A rod chucking handle for fishing rods has a front extension having an axial hole for receiving a butt end of a rod, a fixing sleeve screwed over the front extension, an annular groove formed between the end of the extension and the sleeve in such an arrangement as to change its width by movement of the fixing sleeve and an elastic clamping ring disposed in the annular groove and configurated such that the elastic clamping ring is deformed into pressure contact with the outer peripheral surface of the butt end of the rod for joining the fishing rod with the handle by narrowing the width of the annular groove.

Abstract: A trolling apparatus for fishing which includes a large diameter reel mounted on a frame with a supply of line thereon which line extends to a pulley mounted on a boom connected to the frame and which may extend from the boat for fishing. The frame is mounted by a plate to a swivel base which permits the frame and boom to be swung about to desired positions without any locking or unlocking action, trolling positions being fixed by the relative motion of the boat with respect to the water and which permits the frame and boom to be locked in out-of-the-way positions when the unit is not in use, and with positive stops to prevent the base from rotation in excess of 180.degree.. The swivel base is fastened to the deck or transom of the boat and may be mounted on either side of the boat without modification.

Abstract: An artificial fishing lure having hooks thereon is adapted to receive a tablet which generates a gas when contacted by water so that as the lure is pulled through the water bubbles are generated. The lure is constructed of a rigid unitary body having a pivotal door adjacent the top with rows of holes provided above and below a trailing hook through which the gas bubbles are discharged.

Abstract: A fish lure comprises a hook suspended from a buoyant body, and a lip projecting from the body for causing lateral to and fro movement of the fish lure as the latter moves through water. A triangular wire projection extending from the body has a first portion extending outwardly from the body past the lip, a second portion extending laterally from the first portion opposite from the lip, and a third portion extending from the body to the second portion. A weight is selectively attachable and releasable from either of the first and second portions. The weight causes the body to be tilted when attached to the first portion and to be inverted when attached to the second portion.

Abstract: A fishing lure is split horizontally to provide an upper body portion and a lower body portion, so that the upper body portion which carries the tail portion may flex freely without the rigidifying effect of the shank of the hook mounted in the lower body portion.

Abstract: A meshed crab trap device is provided which has an open state when a crab can enter the device and a closed state for entrapping the crab. The device includes a base member, side members and top member, which are each formed from a plurality of perpendicular wires. The side members are pivotally coupled to one side of the base member and the top member has a size and shape which is identical to the bottom member. A plurality of U-shaped support means couple the top member to the base member such that the top member is parallel to the base member. The distance between the top and bottom members is slightly less than the width of the side members such that when the crab trap is in a closed state, the side members are perpendicular to the top and bottom members and a closed cage is formed for entrapping a crab therein. The side members have a rectangular shape in which the ratio of width to length is about 3:5. This provides a profile which appears to entice crabs to enter the trap.

Abstract: A trap for flying insects and bugs, particularly of the relatively small varieties such as mosquitoes, sand flies, gnats, etc. The trap generally comprises a housing defining an interior chamber, one or more of the walls being slotted with inwardly turned, converging flanges along the slot edges. The inner edges of the flanges are provided with a fabric tape of a material such as nylon with inwardly directed frayed warp strands in a manner so as to permit the entry of the flying insects and bugs into the chamber while preventing their exit therefrom. The housing is fabricated of a clear transparent material to reflect light into the interior chamber and, in addition, a reflective material may be applied to some or all of the flanges.

Abstract: A device for use in capturing cockroaches which comprises a container having at least one opening or entrance permitting cockroaches to enter therein and a slanting stepping plate extending inwardly upward from the bottom of the opening.

Abstract: There is disclosed herein a toy bubble-blowing machine which includes a housing and an associated bubble-forming mechanism. The bubble-forming mechanism includes a plurality of elements, with only one--a hand crank--being positioned outside of the housing. The hand crank is rotatable and is connected to a main drive shaft and drive gear. A propeller which is positioned within the housing and above the drive shaft is drivingly interconnected with the drive gear by a gear train for rotation at a speed greater than the speed of the shaft. A bubble dipper is secured to the drive shaft for rotation through a reservoir of bubble-forming liquid within the housing and for forming a film of the bubble-forming liquid. As the dipper is rotated, the dipper positions the film in the airstream from the propeller so as to form bubbles from the film.

Abstract: A construction kit comprises male and female elements, preferably of molded plastic material, for assembly into various model structures. The male elements have cubic bodies with studs protruding from two or more faces and the female elements are elongated U-section pieces having corresponding square end walls with keyhole-shaped openings for receiving and gripping shanks of the studs whose heads are guided and held between the lateral walls of the female elements. The male elements can be formed of interengaging pieces, and may possibly be pivotally joined. The kit may include various accessories such as panels, struts, pulleys, wheels with removable toothed rings or tines, a motor and so forth to complete the desired structure.

Abstract: The invention concerns toy animal figures with four legs and a rigid, shaped body. In order to achieve as natural an appearance of such figures as possible, also to enable a toy human figure with a realistically small leg spacing to be mounted on the animal figure, preferably with a saddle, the middle of the animal body is formed by a narrow web coverable either by a centerpiece completing the body or by a saddle. When the centerpiece is placed in position no "rider" can be mounted thereon. When, however, a saddle is mounted, in place of the centerpiece, a figure with small leg spacing can "ride" on the animal.

Abstract: The whirl toy is formed of an elongated flat body member having a portion cut away substantially equi-distant from its lateral edges into which is mounted a battery operated light assembly having means for lighting the light when the toy is whirled about in a circular path and to extinguish the light when the whirling ceases.

Abstract: An integrated process in which aerobic fermentation and photosynthesis are combined. In a first step, fermentation is conducted to produce cells which are recovered. The effluent from the fermentation is used for cultivation of algae with the carbon dioxide produced in the fermentation step being circulated to the algae production step.

Abstract: An improved, reinforced edge section for use on seed bed cover fabrics. The improved edge section is formed of multiple layers of the fabric along the side of the fabric. A plurality of openings is included through the multiple layer. To strengthen the edge section and prevent tearing, flexible reinforcing bands are located on the edge section securing the layers together. At least one band lies between each of the openings and the inside border of the layers, and at least one band lies between each of the openings and the outside border of the layers.

Abstract: A flower container having a bottom and an annular wall terminating in an upwardly opening mouth. A plurality of lugs is mounted on the wall adjacent the mouth, there being upright sockets in the lugs. Plugs are mounted in the sockets. Flexible straps span opposed plugs. The straps hold a block of flower holding material in the container.

Abstract: In a window construction of the type incorporating particularly operating sash or sashes, and in certain embodiments an operating sash in conjunction with a fixed sash, a perimeter frame surrounds the composite of sashes, and supports an intermediate frame that is arranged between each pair of adjacent sashes. The perimeter frame is constructed of semi-tubular like structure, and that portion of the perimeter frame surrounding the exteriorly opening operating sash includes a formed shoulder that cooperates to form a sealing contact with face flanges integrally connecting to the framework of the operating sash. Where a pair of operating sashes are arranged adjacently within the perimeter frame and intermediate frame, the formed shoulders contact the sash flanges when said sashes are closed, while the back of the sashes exposes a surface that retains a sealing contact with the proximate rear flanges of the perimeter frame when said sashes are maintained in closed position.

Abstract: In a dual sash window assembly having a pair of overlapping sashes mounted within an outer frame for relative horizontal movement, the outer frame has a stepped sill, with a pair of parallel spaced rails formed thereon as upward extensions from the risers of two of the steps. Mounted on the respective rails for rolling movement therealong, the sashes have bottom horizontal frame members carrying weathertight sealing strips arranged to make sliding engagement with the exterior surfaces of the respective risers of the sill. The sealing strips serve to make the window perfectly weathertight in spite of the presence of dust outlets formed by cutting away parts of the rails.

Abstract: A device and method for etching designs on glass or like surfaces by a sand erosion process. The device has a housing with a vibratory motor mounted therein. The motor drives a sharp or tapered carbide engraving blade or tip through a reciprocating axial motion at a high rate of speed. The blade can be used to engrave or chisel outlines or silhouettes of designs on a glass surface. The device is also provided with a sand erosion adaptor which can be removably fixed on the blade providing a more blunt working end. Sand is delivered from a sand supply in the housing through the sand erosion adaptor and onto the glass surface so that the reciprocal motion of the adaptor grinds or pounds sand against the glass surface to produce an etching effect on the surface. Vibration of the motor means helps the delivery of sand through the head by agitating the sand for freer gravity flow.

Abstract: A grinding wheel refacer for use in combination with grinding apparatus having an abrasive wheel, the refacer including mounting means for mounting and adjustably supporting a diamond bit with the grinding apparatus in refacing relationship with the abrasive wheel. A gauge assembly supporting a micrometer is removably affixed to the grinding apparatus in operative relationship with the diamond bit such that the diamond bit can be adjustably positioned to engage the micrometer means. The micrometer means is adjusted to establish a fixed determinable dimensional relationship with respect to a work piece to be ground on the grinding apparatus, and the diamond bit is adjustably positioned to engage the micrometer, to reface the abrasive wheel such that the radius of the peripheral face of the abrasive wheel corresponds to the finished dimension of the work piece.

Abstract: A method and apparatus for supplying a source of olivine grit material, providing a source of fluid pressure, mixing the ingredients in a sandblasting type of gun, and directing the mixture directly against the surface to be treated. The gun may be adapted so as to provide various spray patterns as desired. The fluid pressure may be either a liquid or a gas.

Abstract: A honing template comprising longitudinally extending fingers adapted to surround a hone and the ends of which carry template segments having inner abutment surfaces that are spaced to abut non abrasive surfaces that are in line with the stones when the stones are expanded to the finished diameter of the cylinder being honed. The inner abutment surfaces of the segments have a radius at least as great as the maximum radius of the cylindrical surface to be honed. The fingers have a tapered surface that is abutted by an annular ring which is wedged over said tapered surfaces to adjust the radial position of the template segments.

Abstract: A method of grinding fine grooves in workpieces of in particular ceramic material while using a wire sawing machine in which the wires are stretched in grooves on the outer circumference of a rotatable drum and project above the surface of the drum with a part of their cross-section.

Abstract: An inflatable dock seal for closing the area around an opening such as a loading dock with respect to a truck or a trailer is provided with a venting valve arranged for self-opening when the inflatable dock seal is partially collapsed as by engagement with a truck or trailer thereagainst.

Abstract: Foamed-in-place metal skin covered insulating panels for the walls of walk-in coolers, freezers and refrigerated warehouses having a fastening bar assembly encapsulated therein. The fastening bar assembly possesses opposite end male and female fastening means for positive and rigid coupling with like threaded means of adjacent wall panels. The male fastening means includes a lag screw and a unique retaining means for the screw which positions it for use while protecting it from contact with the foamed insulation during fabrication of the panel with the fastening bar assembly in place between jig fixtures. The less efficient, weaker and more costly cam locking means of the prior art is eliminated.

Abstract: A method and arrangement for anchoring an object to a support structure having an anchoring hole includes inserting into the anchoring hole an anchoring member slightly smaller than the latter so that a clearance is formed in the anchoring hole about the exterior of the anchoring member, mounting a cap member in the anchoring hole and about an anchoring member so as to fix the latter in position in the anchoring hole, providing a flow-through passage which is in communication with the clearance on at least one of the cap and/or anchoring members, and injecting a hardenable substance through the flow-through passage and from there into the clearance so that the substance forms a plug about the anchoring member and fixes the same in the anchoring hole upon hardening.

Abstract: An elongated tubular ground anchor having a leading driving end with an internal impact receiving abutment and a tapered out-turned trailing end has an external cable swingably secured thereto about midway between said ends but rearwardly of the center of mass of the anchor, is guided and driven lengthwise into the ground to a desired depth by a ram entering the trailing end and impacting the abutment with the cable extending above ground from the hole in the ground formed by the anchor and driving ram. The cable is pulled or tensioned causing the trailing end of the anchor to plow into the ground forming a fulcrum to rotate or tilt the anchor from its upright driving position to an inclined position transversely of the hole and with the leading end remaining lower than the trailing end. The driving ram may be hollow and a concrete slurry pumped through the ram as it is retracted from the anchor and hole to fill the hole with the cable surrounded by the slurry.

Abstract: A swimming pool framework for defining an in ground opening for receiving a water containing liner in which the framework consists of a plurality of joined together arcuate and straight panels with the panels being rigid and formed of hardened polyester resin containing glass fibers.

Abstract: An avionic tray is disclosed for supporting electronic instruments on a shelf. The tray includes an aperture formed thereon for providing the supporting instrument with communication to an air plenum chamber. An interchangeable metering plate is adapted to extend over the aperture, with the plate having a predetermined number of metering ports formed thereon in any desired arrangement. The metering plate is interconnected to the aperture by means of a removable annular gasket, which in turn sealingly engages a surface of the electronic instrument. The gasket includes a pair of annular grooves for receiving the peripheral edges of the metering plate and the tray aperture. The gasket is constructed in such a manner that any application of a downward or lateral force on the gasket by the supported instrument causes the metering plate to be forced against the rim of the aperture to tightly hold the portion of the gasket between the two elements and prevent the gasket from becoming disengaged.

Abstract: An air terminal building consisting of an arrival hall and a departure hall and one waiting hall possibly commonly used by both departing and arriving passengers. These halls are situated on separate above each other located levels and with the waiting hall on the top of the other levels and extending principally along the whole periphery of the building. The arrival and departure halls are located in the central portion of the building. The central portion also contains a baggage hall located between the arrival and the departure halls and commonly used for arriving and departing baggage and with direct access to the platform for the airplanes. The halls located in the center of the building are surrounded by wall elements which include therein or therebetween, all principal shafts necessary for the provision of and communication between the separated levels of the building, i.e. shafts for the installation of heating, water, sanitation, electricity and ventilation, lifts, escalators and others.

Abstract: An improved jacketing system for storage tank structures wherein insulated panels are attached to modular tracks mounted in horizontal courses on the outside walls of the tanks. The individual tracks are made up of modular segments secured together both by splice plates and take-up devices in an improved pretensioned fashion to provide for an efficient mounting of the panels on a tank wall.

Abstract: A building structure of either single or multi-story construction employs wall panels and columns each of which may be fabricated as at a factory and transported to the building site and there erected in a generally modular mode of operation.

Abstract: The specification discloses an improvement on double pane window assemblies comprising two at least generally parallel, spaced transparent or translucent panes defining a volume therebetween. The improvement comprises apparatus for selectively varying the color of the light passing through the panes.

Abstract: The panel includes a square base of expanded polystyrene, and has two projecting sides which mate with the undercut sides of two identical adjacent panels. All four sides of the base are bevelled slightly, and the front face defines intersecting grooves so that a polymer fortified concrete facing can be applied to the front of the base without warping the base as the concrete shrinks during hardening. An acrylic binder, with quartz granules carried thereon is provided over the concrete facing to enhance the appearance of the panel, and to improve its resistance to impact.

Abstract: A roof insulator support system includes a plurality of longitudinally extending beams supporting a plurality of regularly spaced, laterally extending purlins of Z-shaped cross section with an upturned lip portion on the lower flange of each purlin. Elongated liner support members, being extrusions of a generally inverted T-shape, are attached to and extend along the bottom of each purlin. Each liner support member is attached to a purlin by the interaction of a clip member which engages the lip portion of the purlin and a clip flange which engages the bottom of the lower flange of each purlin to prevent vertical displacement thereof. The horizontal portions of liner support members on adjacent pairs of purlins support roof liner panels laid between the purlins. A layer of insulation material is laid on top of the roof liner panels and a roof extends over the purlins.

Abstract: Compound elements for lining such vessels as storage tanks, prestressed concrete reactor pressure vessels, and other gastight areas for use in nuclear reactor construction. The compound elements have a leakproof, plate-shaped metal base, and comprise anchors, contact elements, and reinforced concrete. The contact elements and base of one compound element are welded to a contact element and the base of an adjacent combination element so as to confine with each other a hollow chamber.

Abstract: The frame structure of the invention has a plurality of tubular uprights of circular cross-section each including a number of axially spaced ring flanges which are concentric with the respective upright and which are each formed with circumferentially distributed cut-outs of differing shapes. A plurality of bracing elements connect the respective uprights and each of them has two end portions. Each end portion is formed with an axial slot having a width at least equal to the thickness of the respective ring flanges and subdividing the respective end portion into two sections provided with registering openings extending normal to the elongation of the respective bracing element. A releasable wedge member extends through these openings across the slot and through one of the cut-outs of a ring flange which is in part located in the slot.

Abstract: Machine for packaging products under vacuum or inert gas atmosphere, comprising means for wrapping the product with sheet material, generally thermoplastic material, means for longitudinally sealing the material, means for carrying out transverse seals, means for perforating the sheet material and evacuating air from the package and possibly injecting inert gas, and means for carrying out a further transverse seal to insulate the hole.

Abstract: A method and a machine for packing wood chips into containers that are easily transported from the place of production to the place of utilization. The wood chips are blown from the discharge tube of the wood chipper straight into a tube-like package which has perforated walls allowing the air carrying the wood chips to escape from the package while the chips are retained inside the package.

Abstract: Method and apparatus for counting, collating and packaging a predetermined number of tubular articles. Known devices for handling and delivering a batch of such articles, for example cigarette tubes with filter tip, are not capable of automatically delivering and packing a predetermined number of articles. The present apparatus automatically delivers a predetermined number of articles in a packed box by the coordinated action of a counting device, separator gate and first picking plate movable horizontally towards a second picking plate so that the predetermined number of tubular articles are scooped and eventually retained between the two picking plates before removal into a waiting box.

Abstract: An apparatus for automatically sealing random sized cartons which includes a unique side arm control mechanism which translates rotary motion to linear motion to push and pull against both ends of each side arm. The apparatus also includes a unique lift mechanism to raise and lower the top sealing means.

Abstract: A method and apparatus adapted for automatically and continuously forming a completely sealed package having fin type seals and made from a heat-sealable wrapping foil. The process basically embodies the steps of holding a portion of the foil adjacent the article to be packaged, folding the remaining portion of the foil about the article to be packaged so that opposing side edges of the foil are moved towards each other, heat sealing together the opposed side edges of the foil to form a side fin seal, forming a bottom fin from the foil for the package, heat sealing the bottom fin to form a bottom fin seal, forming a top fin from the foil for the package, and heat sealing the top fin to form a top fin seal.

Abstract: The disclosure is of apparatus including a pallet load which is to be wrapped with film, the pallet and load being horizontally movable along a straight-line path from a loading area to a wrapping station. At the wrapping station, there are a fixed vertical roll of wrapping film and a movable vertical roll of wrapping film, and the film to be wrapped around the load extends, as a curtain, between the two rolls. When the pallet load is moved into the wrapping station, it is pushed into the curtain of film which partially encloses the load, and the movable roll is driven toward the fixed roll to complete the wrapping of the film about the load and to provide a region where two layers of film overlap each other. With the load thus completely enclosed, a clamping bar secures the seal area, and a heat-sealing device is used to seal the overlapping layers of film to complete the wrap.

Abstract: An apparatus for guiding and cushioning a plurality of articles deposited into a container positioned beneath it. It is comprised of a rigid framework of spaced, elongated members having guides positioned at intervals along the members. The guides are tapered upward and extend outward on either side of the elongated members to define passages through which the articles pass, which passages are bounded by members on two sides and by the extended guide portions on the other sides. Flexible fingers extending downwardly and toward the center of each passage have mounting portions fastened to the elongated members by the tapered guides; preferably two fingers extend into different passages from a common mounting portion. The tapered guides align each article with a passage where the flexible fingers cushion and precisely position the article as it moves into the container. Each mounting portion can be resiliently fastened in place to provide adjustability of the cushioning effect by adjusting the resiliency.

Abstract: A dual purpose protective nose shield for race horses which includes a pair of generally cup-shaped reverse air scoops positioned over the horse's nostrils. Each scoop has a rearwardly flared deflection shield which prevents cold frigid air and/or mud or other foreign debris from the track from impinging directly upon the nostrils. The rearwardly facing breathing port of the scoop channels inhaled and exhaled air into an air space which is formed by the scoop about the nostril. The incoming cold air is warmed as it contacts the outgoing exhaled air and by the body heat generated by the portion of the horse's face over which it is channeled so as to prevent damage to the nostrils and impaired or shallow breathing often caused by the direct inhalation of cold frigid air.

Abstract: A safety switch for a cordless electric device such as a lawnmower or other gardening tool. The device includes a cutting or working implement such as a rotating blade, an electric motor, a battery power supply and an electric switch for connecting the battery to the motor. To prevent accidental operation of the device, a switch control lever is provided which requires two separate and independent motions to be made before the switch can be activated. A switch enclosure is provided which receives the switch operating lever in a close fitting manner. Structure is provided for permitting movement of the operating lever to a position external of the housing; from this position, it can be grasped and moved to the switch-actuation position by a separate motion. The structure permitting movement of the lever may comprise, for example, an access opening in the housing which is separate from the opening in which the lever rests or it may comprise an independent lever-operating member.

Abstract: Disclosed herein is a lawn mower comprising a blade housing supported for travel over the ground, a drive shaft mounted for rotation by the blade housing and including thereon a clutch drum, an engine drivingly connected to the drive shaft for rotation thereof, a cutter blade located in the blade housing and mounted for rotation coaxially with and relative to the drive shaft, a clutch shoe connected to the cutter blade for common rotation therewith and for movement relative to a position of engagement with the clutch drum, a spring urging the clutch shoe into the position of engagement, a brake surface fixed to the clutch shoe, and a brake member movable between a first position wherein the brake member is spaced from the brake surface, and a second position wherein the brake member engages the brake surface to brake rotation of the cutter blade and to displace the clutch shoe from the position of engagement against the action of the spring.

Abstract: A lawn mower having an endless cutting band guided across a slotted cutter bar to cut grass projecting through the slots. Drive means moves the cutting band continuously in one direction.

Abstract: A non-soil penetrating sugar cane harvesting blade assembly adapted to be connected to a tractor tool bar and consisting of top and bottom circular housing members with a rigidly-connected central shaft on which is journalled a disc member extending beyond the rim portion of the housing members and having cutting blades secured to its periphery. A ground-engaging skid is secured to the bottom housing member and maintains the cutting blades at a constant cutting height. A hydraulic motor is mounted on the top housing member and is drivingly connected to the disc member. The disc and housing members are linearly guided for upward and downward movement relative to the tool bar, and are biased downwardly by a spring acting between the top housing member and the tool bar and supported on an upstanding post member secured on the top housing member. One or more shock absorbers cushion relative movement of the cutter housing assembly with respect to the tool bar.

Abstract: This invention relates to the automatic removal or doffing of bobbins from top-loading spindles on a spinning machines wherein self-aligning loop projections carried on top of the bobbins are automatically brought into alignment with bobbin engagement means for removing the bobbins from the spindles.