Abstract: This disclosure is of a machine for removing edible crab meat from the prepared core bodies of hard crabs by subjecting the core bodies to rapid vertical vibratory movement. An improved support means for the core body and the core body holder is provided.

Abstract: An arrangement for driving the traveling flats of a carding machine. A drive gear is readily releasably secured to the carding machine at one end of the flats for driving the flats in one revolving direction and, for driving the flats in another revolving direction, the drive gear is removed from the one end of the flats and readily releasably secured at the other end of the flats.

Abstract: In a fiber tuft feeding apparatus the throughgoing tuft quantities are sensed, signals representing such quantities are emitted and in response to the signals, a tuft quantity metering member, such as a feeding roll is controlled by analog setting signals.

Abstract: A slide fastener stringer includes a stringer tape having a pair of opposite surfaces, and a series of fastener elements sewn to the stringer tape on one of the surfaces thereof along its one longitudinal edge by utilizing single thread chain stitches formed with a monofilament thread having a coefficient of thermal contraction. The sewing thread has a succession of loops disposed on the other surface of the tape, each loop being intralooped with a preceding loop of the same thread such that the crossing of these adjacent two loops is disposed between adjacent two of the fastener elements, as viewed in a direction perpendicular to the general plane of the tape. The monofilament thread, after sewn to the tape, is heat-set to shrink and then become dimensionally stable, thereby holding the fastener elements more tightly on the tape.

Abstract: A clasp assembly is provided for securing together the free ends of opposed flexible members and includes a first coupling member that is joined to the free end of one of the flexible members and a second coupling member that is joined to the free end of the other flexible member. In the latched position the coupling members appear to be an integral part of the flexible members and impart an ornamental appearance thereto. The first coupling member includes a box element in which a transversely extending spring is located and has a pair of snap levers pivotally mounted on the sides thereof.

Abstract: A narrow woven stretch fabric is formed from bare elastomeric warp threads separated by high shrink warp threads and from a high shrink weft thread. The edge elastomeric warp threads are loosely wrapped with heat set yarn. These edge threads, which are under the same tension as the other elastomeric warp threads, are wrapped between the supply and the loom. The weft thread is interwoven at a low weft per inch and the fabric is heat treated to shrink the non-elastic high shrink threads and corrugate the elastomeric threads without heat setting. The wrapping device and the surface feed rollers for the elastomeric threads are driven by the loom drive at appropriate speeds.

Abstract: Method for extending a warp fed to a tufting machine, which includes securing trailing thread ends of the warp to be extended with a holding device, pulling the leading thread ends of a new warp from a thread accumulator, securing the leading thread ends of the new warp with a further holding device, subsequently joining each individual thread of the warp to be extended to a thread of the new warp with a spliced joint, and cutting off and sucking away the two overhanging thread ends of the spliced joint, and an apparatus for carrying out the method.

Abstract: The tool includes a rotatable shank having a guide member releasably mounted upon its lower portion and adapted to be closely received within the muzzle portion of a gun barrel, and further includes a file member projecting radially outwardly from a medial portion of the shank and rotatable in unison with it. The file member overlies and engages the muzzle end surfaces of the barrel and, upon rotation of the shank of the tool, it "squares" and otherwise finishes such surfaces. The means by which the file member is mounted preferably is of a releasable type that includes a supportive backing member. The extent of the radial projection of the file member from the shank preferably is such that when the tool is used in association with a double-barreled firearm, it simultaneously finishes all of the muzzle end surfaces thereof.

Abstract: Apparatus and method for rework dressing a chip site on a substrate prior to rejoining a chip by solder reflow. A compliant mask is aligned and placed on the substrate so that remnant solder columns on chip site pads protrude through holes in the mask. A brush mechanically removes excess solder and dresses any remaining solder columns to uniform shapes and volumes.

Abstract: Method and apparatus are disclosed for automatically assembling a heat exchanger core assembly comprised of tubes and centers arranged in alternate rows and a pair of reinforcement members arranged on opposite sides of the rows adjacent the outermost centers.

Abstract: A method and apparatus are provided for relining a fluid transmission pipe in which a deformable stiffener is inserted in one end of a plastic liner, the plastic liner is inserted into the transmission line with the stiffener first, a plastic sealant is placed around the end of the plastic liner in the transmission pipe and the stiffener is expanded intermediate its ends in the plastic liner to force the liner end into tight contact with the transmission pipe interior with sealant surrounding the contact area.

Abstract: A method for protecting the feed tube of a food processor is described in which an outer sleeve associated with a movable food pusher and carrying an actuator enables operation of the food processor only when this outer sleeve is properly positioned over the feed tube. When the cover is properly positioned on the bowl and the outer sleeve is mounted over the feed tube with the food pusher being positioned and manually movable within the passageway in the feed tube, the actuator means carried by the sleeve is operatively associated in enabling relationship with control means in the housing to permit operation of the motor drive for the food processor. Thus, inadvertent insertion of a hand or a foreign object through the feed tube into the bowl is prevented when the rotatable tool is being driven by the motor drive.

Abstract: This invention relates to a wear lining containing rubber e.g. for pumps intended for handling wearing material such as dredger and mud pumps of the centrifugal type, which wear lining comprises a layer of wear rubber rigidly combined with a support plate. One of the problems with wear linings of such pumps is that already in manufacture they must be given a shape corresponding to the shape of the shell of the pump housing in which they are to be mounted, and must be manufactured in sections to permit mounting in their pump housing. For this a great number of moulds is required, which involves great costs of manufacture, and as the known wear linings for pumps are manufactured in sections, mounting thereof will be difficult and time-consuming, at the same time as there will be a joint between two sections, which has turned out to be a part of the wear lining that is exposed to wear.

Abstract: A sleeve is used in a tubing joint assembly method, usually an inner sleeve, with a tube telescoped over this inner sleeve. An outer sleeve may optionally be telescoped over the tube and the entire assembly. One of the sleeves has a lateral shoulder transverse to the axis of the sleeve and with this shoulder terminating in a sharp angled peripheral rib. The outer sleeve is inwardly compressed by two dies which have interdigitated teeth. This compresses the outer sleeve, where used, and compresses the tube at the peripheral ribs of the sleeve. The interdigitated teeth on the dies assure complete compression all the way around the periphery, between the tube and the sleeve with a lateral shoulder being formed on the tube to act against the lateral shoulder on the sleeve and thus longitudinally retain together these parts. Also, a fluid pressuretight seal is established primarily at the sharp angled peripheral rib and its junction with the facing wall of the tube.

Abstract: A method for attaching and securing an apertured mounting bracket to a metal sheathed electric heating element received therethrough to insure firm mechanical support, prevention of relative axial motion, reliable electrical grounding, and ease of adaptation to automated assembly.

Abstract: An improved method of sealing and attaching, in a weathertight manner, a mounting support, such as a mounting support of an equipment, to a roof surface. A flared hole is formed in a sheet of metal flashing. The flashing is placed on the roof with the flared hole thereof aligned with a hole in the roof and protruding upward from the roof. A resilient pad is applied to the roof flashing over the flared hole, with a hole in the pad surrounding the flared hole in the roof flashing. The mounting support is then bolted to the roof surface by passing a bolt through the mounting support, the pad, and the aligned holes. The bolt engages the mounting support and the underside of the roof surface so as to secure the mounting support to the roof surface with the flashing and resilient pad pressed therebetween. This sealing technique provides a reliable water-tight seal through which water cannot readily penetrate, even over long periods of time.

Abstract: The disclosure relates to a tool storage carousel assembly for use in a tool change system of a vertical lathe or the like. The tool storage carousel assembly generally comprises a rotatable turntable having a plurality of radially projecting tool block supporting elements. Each of the tool blocks to be stored in the carousel assembly is provided with a top surface having an upwardly opening, clamping slot extending completely across the top surface. Each of the projecting tool block supporting elements of the rotatable turntable is arranged and configured for slidable reception in the clamping slot of one of the tool blocks to be stored in the carousel assembly whereby the particular tool block is supported by the tool block supporting element for storage on the carousel assembly. In accordance with an important feature of the invention, each of the radially projecting elements of the rotatable turntable includes a recess means formed therein.

Abstract: A solid-state image sensing device having an enhanced sensitivity to a short wavelength comprises an optical substrate for passing a predetermined light therethrough, a semiconductor substrate supported on the optical substrate and a plurality of electrodes formed on an insulating layer overlying the semiconductor substrate, in which a light corresponding to an object is incident from the optical substrate side.

Abstract: In assembling a rotor into a small electric rotary machine, a spacer made of resinous material is provided to have an ideal axial play for the rotor. When the rotor is assembled into a housing, the resinous spacer is made to be soft enough to allow encroachment of the rotor shaft end until the rotor is placed in the right place. Thereafter, the spacer is made hard enough to support the axial movement of the rotor when the motor operates. Since the resinous spacer shrinks after hardening it provides an ideal axial play for the rotor.

Abstract: A method for producing a V.sub.3 Al superconductor which comprises making a composite composed of a sheath portion of a copper alloy containing 1 to 15 atomic percent of germanium, 1 to 15 atomic percent of silicon or 2 to 25 atomic percent of gallium and surrounded by the sheath portion, at least one core portion of a vanadium-aluminum alloy containing 0.5 to 20 atomic percent of aluminum; elongating the composite; and then heat-treating the elongated composite thereby to form a V.sub.3 (Al, Ge), V.sub.3 (Al, Si) or V.sub.3 (Al, Ga) layer between the sheath portion and the core portion.

Abstract: A chain saw guide blade includes a pair of side plates between which an axle is fixedly supported and a sprocket is rotatably supported with respect to the axle. The sprocket is rotatable about the axle with roller bearings therebetween for guiding a cutter chain for movement around the edge of the guide blade. A pair of annular seals are respectively disposed between the sprocket and one of the side plates and between the sprocket and the other side plate. Each of the seals includes an annular lip projecting obliquely into resilient contact with a surface of the sprocket or of one of the side plates. A grease-supply aperture in each side plate is normally closed off by a flap on the annular seal or resilient valve placed in a central hole of the axle. When under the pressure of forced grease through the aperture, the flap or valve is resiliently yieldable to allow the grease to be introduced for the lubrication of the roller bearings.

Abstract: A method is disclosed for measuring at the water's surface the distance between a submerged wellhead and a downhole tubing hanger located in a subsea well which includes lowering an electrical conductor cable through the wellhead until the weighted lower end of the cable engages the tubing hanger. The cable contains two tools, one of which is capable of emitting an electrical signal for transmission to the surface when the cable is picked up and the lower end of the cable disengages from the hanger and the other of which is capable of emitting another electrical signal when it passes a preselected point in the wellhead. The cable is picked up to generate one signal and raised until the other tool passes the preselected point in the wellhead to generate the other signal. The distance the cable has been raised between emission of the two signals is then added to the known distance between the lower end of the cable and the other tool to determine the distance between the wellhead and the tubing hanger.

Abstract: An apparatus comprising an elongated scale slidably disposed through a planar base is used to provide a direct measurement of height of fat in subcutaneous tissue in the abdominal area. The scale is inserted into the orifice about a subject's umbilicus until it contacts the umbilicus. The scale is kept perpendicular to the umbilicus while the planar base is slid down over the scale until the bottom surface of the base makes light contact on the surface on the stomach. A reading of the thickness of the fat and subcutaneous tissue can then be taken from the scale.

Abstract: A functional gear checking machine for determining a number of gear characteristics from a composite input signal received from a linear voltage differential transformer is disclosed. The signal from the sensing transformer is coupled to a demodulation circuit which, in turn, is coupled to several types of signal processing circuits, each of which contains a memory, and each of which processes and separates the components of the composite signals in order to provide output signals that are indicative of the desired gear characteristics. The output signals that are developed are a function of the voltage between two reference levels, at least one of which is established by the associated signal processing circuit.

Abstract: A vehicle body-and-frame-alignment apparatus for use in realigning the front inner structures of damaged unitized or unibody constructed vehicles employing sliding strut-shock units as front-end suspension systems, wherein the apparatus is formed by a substantially rectangular adjustable frame gauge defined by upper and lower horizontal gauge bars adjustably interconnected to oppositely positioned vertical side gauge bars by coupling brackets, each gauge bar including a measuring tape disposed along the longitudinal length thereof. The frame gauge is adapted to be supported on the sliding strut-shock units by an adjustable pair of gauge-positioning members slidably mounted to the upper horizontal bar, the lower horizontal bar being provided with a fixed central indicator and a second pair of gauge-positioning members, each gauge-positioning member including a vertically adjustable reference pointer to indicate structural alignment or misalignment of the vehicle structure.

Abstract: An improved plumb bob holder, comprising a stiff wire frame formed to provide a spool section for the cord, a storage rack section to hold the plumb bob, and a clip section to clip the plumb bob holder to a workman's belt.

Abstract: A new vegetable drying apparatus consists of a net bag or perforated plastic bag placed inside an outer imperforate plastic film bag, both bags being provided with handles or other means for holding the same for manual rotation at relatively high speed. The washed vegetables which are to be dried are placed in the net bag, which is, in turn, placed inside the outer imperforate bag. The two bags are held together as a sling and manually rotated at a sufficiently high speed to remove water from the vegetables by centrifugal force. The water removed from the vegetables is collected inside the imperforate bag instead of being thrown out into the area where the bags are rotated or slung around. After use, the inner bag is removed from the outer imperforate bag and the vegetables, free of surface water, are removed. The water collected in the outer bag is poured out and the bag turned inside out to dry, if desired. An alternate embodiment includes a water absorbent liner, e.g.

Abstract: A drying apparatus for drying material treated with liquid by heating and circulating a drying gas and for recovering vaporized liquid absorbed by a drying gas comprises at least one chamber unit which is essentially completely closed to the external atmosphere, a heating system in the chamber, a condensing system located in the chamber lowermost portion, means for guiding the material, in the form of a web, through the chamber through slot-like inlet and outlet openings such that the web is maintained free of contact at its wet surface, and a drying gas circulation system which divides the drying gas into several streams.

Abstract: A heat cycling apparatus and method is provided for heating at least two chambers utilizing a pressurized heat source. The heated air is directed first to one chamber and then to the other on a predetermined repetitive time cycle.

Abstract: Disclosed is an improved heated can roll of high thermal efficiency for web or sheet processing machines, such as a papermaking machine. The improved can roll has means for insulating the ends of the internally heated can rolls to provide a segmental heat insulating part spaced from the roll end or head to provide an air space adjacent to the head or roll ends, resulting in a large reduction in heat loss through natural convection, convection due to rotation, forced convection due to air draft, and radiation and resulting in a more uniform drying surface temperature. Improved clip means using a body bolt adapter are provided for attaching the insulating means directly onto the existing head bolts holding the can roll head onto the cylindrical portion of the can roll.

Abstract: In a process for the moistening, impregnating and refining of a web of paper, carton, foil and the like, the web is treated in steam by the condensation effect of liquid supplied through nozzle bodies, and a precipitate is produced. An apparatus for carrying out the process has nozzle bodies arranged in a casing and connected to a steam supply, the nozzle bodies each containing a heater for heating the liquid and gas in a substantially pressureless condition in front of the nozzle outlets. Cooling elements are provided for the cooling of the web fed past the nozzle bodies, the whole being arranged such that, through the liquid being supplied, a condensation and thus a precipitation onto the surface of the web are produced.

Abstract: A device for breaking loose tree stumps from the ground comprises a vehicle, an arm or the like carried by the vehicle and a tool carried by said arm and engageable with a stump. The tool comprises at least two members movable relative to each other when the tool has been located in an uprooting position relative to the stump. One of said members is adapted to rest against the ground while the tool may lift the stump by means of the relative movement of the members.

Abstract: A digging tooth and bucket combination. The bucket has a V-shaped leading edge. Digging teeth are arranged vertically spaced from one another on the leading edge to cause the bottom of the excavation to be V shaped, with each side of the V being formed by a plurality of ledges. This causes the bottom of the excavation to have a stair-step configuration. Each digging tooth has a cutting edge arranged thereon to cut away material from a vertical side and a bottom of the ledge as the teeth penetrate the formation. The digging teeth are removably mounted to a shank, while the shank is rigidly attached to the V-shaped bucket lip. Forces imposed on the cutting edge of the teeth are transferred into the shank and then into the bucket lip in an improved manner.

Abstract: A calendar stand has a tray formed therein. A top surface has windows which register with the trays. A card displaying information passes through the slots and is placed on the trays and magnetically held thereon. The cards can only be removed by a special tool which passes through the slot. Additionally, a pen is provided which is secured to the stand which pen can only be opened with a special tool.

Abstract: A ball bearing hammer actuator comprises a hammer lever which is connected at the one end to the hammer and which is connected at the other end to a shoe which is slidable in relation to guide surface having a U-shaped cross section. The guide surface is provided for by a portion of the frame which has a generally U-shaped cross section. The shoe of the ball bearing hammer actuator includes a body having a generally rectangular shape which is designed to fit within the U-shaped guide. The shoe fits within the guide with a small clearance, the clearance allowing for use of ball bearings. Two edges of the body of the shoes include elongated recesses. The recesses receive a plurality of bearing balls therein. The bearing balls protrude from the bottom of the shoe and the sides of the shoe. The bearing balls are in contact with the walls and the floor of the U-shaped guide. A spring mechanism urges the shoe upwardly.

Abstract: Two handed holding apparatus for all types of hand held firearms, including handguns, rifles, submachine guns and the like, includes a first handle fixed to the firearm to one side of a barrel bore axis and a second handle fixed to the firearm to an opposite side of the barrel bore axis in alignment with the first handle. The two handles, adapted to be individually held by one of a user's hands, divide firing recoil between the user's hands in a generally symmetrical manner to eliminate muzzle jump. For handguns, having a preexisting handle, a frame extension is provided, to a projecting end of which the second handle is fixed in orthogonal relationship to the first handle. To convert existing handguns, the frame extension is attached to the first handle and replaces one of the existing handgrips. The frame extension is configured to receive a pistol scope or fixed sights. In a variation, the frame extension is permanently fixed to the pistol frame, as an addition or as part of the original frame.

Abstract: This invention comprises an arm that projects outwardly from the boat and has trotline holding means thereon which can hold the trotline external of the boat, and below the boat's gunwale, thereby preventing the hook-carrying line from entering the boat, or passing over, or under the boat. Consequently, the cause of most hookings, is eliminated. This makes trotline fishing safer, easier, more fish productive, and more enjoyable.

Abstract: Fish can lightly nibble bait off a hook before a fisherman becomes aware and is able to react by firmly setting the hook in the fish. Apparatus is provided for reacting to a fish lightly nibbling at the bait in a manner sufficient to swiftly jerk the hook thus firmly setting it in the fish. The apparatus may be preset so as to avoid being set off or tripped while being cast out onto the surface of the water. Also, the apparatus may be modified for ice fishing. The preset may be adjusted to varying levels of sensitivity depending upon the type of fish to be caught or the type of bait being used.

Abstract: Disclosed herein is a device for amusing young children and the like by utilization of correlatives electronically provided for educational benefit. The device includes a housing adapted to be affixed to a safety seat and an automobile within which the child is placed and includes a source of power, a display board which appears to have the visage of a person or the like, and a control panel having plural switches thereon for selected engagement of various groups of lights provided on the visage. By appropriate switching, various aspects of the amusement face can be illuminated.

Abstract: The present invention relates to an edging strip which is an integral elongated plastic member which is particularly adapted for being positioned in and on the ground to inhibit plant life from growing in a selected elongated narrow band. The edging strip includes an elongated ground cap which is adapted for positioning on an elongated narrow band of ground for shielding that ground to inhibit plant life from growing throughout, or over the cap. An elongated thin upright wall has one edge formed integral with the side of the cap which is adapted to be adjacent to the ground. The upright wall is coextensive with the cap. The upright wall is offset center from the cap so that the upright wall is closer to one edge of the cap than to the other. The edging strip includes a lip formed integral with the upright wall and extending toward the edge spaced away from the upright wall. The lip is perpendicular to and coextensive with the wall.

Abstract: An inexpensive and reliable security bar that may be easily and quickly assembled between structural supports of a guarded area to prevent entry into the area. The present security bar comprises first and second elongated bar members, one end of each of which is respectively installed into a structural support. The security bar members are substantially aligned with one another across the entrance to the guarded area, so that a small gap is formed between the second ends thereof. A hollow coupling sleeve is positioned over the gap, and a dowel or pin is inserted through a hole in the sleeve and into the gap between the bar members. Accordingly, when in the assembled relationship, the sleeve and pin cooperate to inhibit the lateral and angular displacement of the bar members, whereby to prevent removal of the security bar from the guarded area after installation between the structural supports thereof.

Abstract: An apparatus for guiding a lifting or lowering movement of a vehicle window glass (2) has a generally vertical elongate guide track member (3). A hollow lower end (3b) of the guide track member (3) is connected to a panel (P) secured to the vehicle body or a door (D) by a mounting member (10) of one-piece structure. The mounting member is integrally provided with a crosspiece (10d) which formes a bayonet connection with the panel (P), a projection (10b) which is press-fitted into the hollow lower end (3b) of the guide track member (3), and a seal lip (10f) which seals a bore (P.sub.2) of the panel (P) through which the crosspiece is passed.

Abstract: A lapping machine includes a circular drive plate mounted on the end of a driven shaft and a circular lapping plate mounted on the drive plate. A pair of leveling levers are mounted between the drive plate and the lapping plate with each lever being in a groove in the drive plate. Each lever has a pivot point adjacent one end which is pivotedly seated on the drive plate and projects from the groove in the drive plate so that the lapping plate engages the lever. An adjustment screw is at the other end of each lever for adjustably pivoting the lever and thereby tilts the lapping plate with respect to the drive plate. Either the lapping plate or the drive plate has holes therethrough to permit access to the adjustment screws. A drive pin projects from the drive plate and fits in a groove in the bottom of the lapping plate to drive the lapping plate with the drive plate.

Abstract: A forage harvester for harvesting crops and reducing them to forage by means of a rotary chopping cylinder which has a plurality of blades around its periphery which cooperate with a shear bar carried on the frame of the harvester. A sharpening device is provided above the cylinder for sharpening the cylinder blades and brackets are also provided for mounting the shear bar when it is to be sharpened, above the cylinder so that the same sharpening device that is used to sharpen the blades of the cylinder can also be used to sharpen the shear bar. Bracket mounting structure is provided for the shear bar to ensure that it is sharpened at the proper angle.

Abstract: A flood barrier comprises a flexible membrane 5 the end and base parts terminating in a beading 7 of polypropylene rope. The side parts of the barrier are located in vertical channel 3 in the side walls and the base in a horizontally extending channel 4 in the floor. In normal conditions the barrier is stowed in the recesses and erected in the event of a flood warning.

Abstract: A subterranean structure particularly adapted for greenhouse use and including a roof which can entirely close the enclosure or be moved to a position exposing the interior to natural light. Curtain assemblies are provided at the free end and sides of the roof to eliminate wind, rain or snow from entering the enclosure. Artificial light fixtures are mounted on the underside of the roof for providing artificial light when the roof is closed, and ventilation and supplemental heating means are provided to achieve the desired growing conditions in the greenhouse.

Abstract: A shear wall of a building is tied down to an underlying concrete slab by a single tie rod at each end of the wall. The upper end of each rod is secured to a bracket attached to a shear wall stud, and the lower end of the rod extends through a slot in the upper flange of a channel-like lower bracket. The lower flange is provided with a plurality of slots extending in a common direction and up through which bolts anchored in the concrete foundation extend. The upper slot in this lower bracket extends in a direction at a right angle to the lower slots, and at least one of the several slots extends lengthwise of the shear wall. The slots in the bottom of the lower bracket permit its adjustment on the foundation to position it for receiving the lower end of the rod in the upper slot.

Abstract: This pane comprises at least one sheet of plastics material, for example a polycarbonate, which has a high resistance to impacts and is interposed between two sheets of glass or the like. A film of a transparent fluid is interposed between the sheet of plastics material and each adjacent sheet of glass. A sealing element for the fluid extends around the periphery of the pane.Application as a bullet-proof pane to wind screens and windows of automobile vehicles, to glass, windows and doors of buildings, etc . . .

Abstract: The present invention relates to a glass pane whereby a broken pattern of white and black opaque material is applied to the surface or surfaces of the glass pane such that concentrated light from one side of the glass is reflected to such an extent that persons on that side of the glass may see the wall and may "read" the path of an object moving relative to said wall whilst persons disposed on the other side of said wall may see through the wall to a sufficient extent to also follow the path of said moving object. The glass panels of the present invention are particularly suitable for wall members for a squash, handball, racquet-ball or like court.

Abstract: This invention relates to a wall element for use in constructing walls, and a wall system constructed of two parallel rows of a plurality of the wall elements laid in courses in interconnecting relationship, the wall system being used as construction forms for retaining fluid concrete poured into the space therebetween, whereby the two walls remain as a permanent part of the completed wall system, and a method of constructing the described wall system from the wall elements and accessory parts. The invention includes a wall element for use in association with other similar wall elements in the construction of a wall. The wall element has a top, a bottom, two side and two end surfaces, and at least one longitudinal groove in the top or bottom surface thereof, and a matching longitudinal ridge in the opposite top or bottom surface thereof, and second and third horizontal longitudinally extending grooves on at least the top surface of the wall element, both being parallel to the first longitudinal groove.