Abstract: A level and support made up of two spaced tripods each having a bracket supporting one end of the level. Each bracket has a rifle sight on it which can be aligned with the other end on a distant object to establish the level thereof. In a separate embodiment a single level has a double bracket arrangement on it with two clamps each having a rifle sight which can be sighted onto distant objects.

Abstract: A head supporting device for a universal parallel ruler is disclosed. The head supporting device connects the operating head of the ruler, having the scales attached thereto, to the cursor of the ruler, which is movable along a longitudinal rail. When the operating head and the scales are in contact with the drawing board surface, and are forced in an upward direction, the mechanism in the head supporting device locks the operating head in a raised position above the drawing board surface. The drawing may then be removed from the drawing board surface, or the surface may be cleaned. In order to unlock the mechanism in the head supporting device, a slight external downward force should be exerted onto the top of the operating head. Once the downward force exceeds a certain amount, the operating head, with the scales attached thereto, snaps back into contact with the drawing board surface.

Abstract: The present invention discloses a way of separating and treating the covered surfaces of stacked articles in abutting face-to-face contact. It is particularly applicable to stacked planar articles, those having a relatively small width dimension and at least two substantially parallel surfaces in abutting contact, such as metal beverage container closures. The articles are pushed through a curvilinear path defined by a constant width trackwork of a herein specified design, allowed to pivot on the portions of the articles in proximity to the shorter radius whereby fan-like separation of the portions in proximity to the longer radius occurs, and treating medium, such as heated air, is directed toward the separated portions. Greater uniformity in treatment may be obtained by rotating the articles, at least once, as they traverse the curvilinear path. A preferred embodiment designed to dry the sealant on metal beverage container closures is disclosed herein.

Abstract: An article of footwear and process for making same in which upper portions of a shoe are fastened to a synthetic sole by placing portions of the upper through slots on the outer periphery of the sole turning same under, and fastening same by coaction of an undersole to the sole; the uppers fastened by means of studs which traverse therethrough to blind holes disposed on opposed faces of the sole and undersole.

Abstract: An improved protective shoe. The shoe may be an industrial or athletic shoe. A protective cover overlies the toe and instep and is at least partially removeable from the shoe itself. The protective cover has an outer flexible sheet and an inner energy-absorbing layer. A particular improvement lies in providing a flap overlying the shoelaces, with a pair of openable flap closure means on each side of the flap so as to provide an unbroken cushioned surface over the very vulnerable high point of the shoe.

Abstract: A convertible sports device has a housing, and sport members movable between an extended and a retracted position relative to the housing. An arresting member is provided, which in a first position abuts against a first face of each of the sport members so as to arrest them in the extended position, and in a second position abuts against another face of the sport members so as to arrest the latter in the retracted position. The housing may be formed as a bottom portion of a shoe or may be attachable to the shoe. The arresting member may be actuated by an actuator which, in turn, may be actuated by a foot of a user so that the sport members may be retracted or extended without the need to use one's hands.

Abstract: An attachment for powered vehicles comprising a universal carrier member adapted to be secured to the lift apparatus of the vehicle and pivotally supporting a multi-purpose scoop implement having a plurality of operating positions, one of the operating positions providing a scoop for the vehicle, another of the operating positions providing a load carrier for the vehicle, and yet another operating position providing a scraper for the vehicle. In addition, the carrier member may be utilized for carrying a plurality of implements for expanding the usefulness of the vehicle. For example, a roller, a cultivator, a spool or core for facilitating the winding and unwinding of fencing and the like, a soil loosening device, a fork lift attachment, and the like, may be supported by the carrier member whereby the vehicle may be utilized for substantially unlimited number of work operation.

Abstract: An automatic bucket leveler is located on the underside of a bucket piston cylinder unit and is preset to stop the bucket in a horizontal or digging position. A trip bar is attached to the cylinder piston rod and moves with the cylinder piston rod through a magnetic field which is created by a proximity switch and is completed by a proximity of the trip bar within the magnetic field. A trip bar guide is provided as a part of the automatic bucket leveler structure which functions to protect the proximity switch from damage by encounter with the trip bar and keeps the trip bar in correct relationship to the proximity switch, within the magnetic field, as the trip bar passes alongside of the proximity switch.

Abstract: An apparatus for pleating cloth especially to make miniaturized drapes comprising a rectangular frame having a number of flexible rectangular slats movable along the length of the frame. In the preferred embodiment, the slats are placed on wire guides at two opposite ends of the frame and are movable on the guides, and in the alternative embodiment the T-shaped ends of the slats are placed within a U-shaped tunnel running along the length of the frame.The fabric to be pleated is interwoven between the slats, the slats are compressed to one side of the frame, and steam is applied to the fabric supported by the frame. Steam may be applied to the opposite side of the frame with fabric thereon, the fabric is allowed to dry, and it is subsequently removed from the frame, adjusted to a desired shape, steamed and allowed to dry, thereby retaining its pleated shape.

Abstract: A display sign is disclosed herein having a dual feature back member or frame formed in a singular piece with a continuous sidewall having precise contoured corners that flow into the perimeter edge in an uninterrupted seamless line extending outwardly from the edge marginal peripheral region of a flat plate. An area defined by the opposite surfaces of the sidewall and the adjacent surface of the back member defines a recessed mounting area for removably receiving a front flat plate so that the area is substantially occupied by the volume thereof. The dimension of the flat plate is less than the space it is occupying so that a deep channel or groove is established between the edge of the plate and the opposing surface of the continuous sidewall so that a continuous channel or reval plate which is of different color or texture than the color or texture of either the back member or the plate so that a visual distinction or difference exists therebetween.

Abstract: A multipurpose dental X-ray film mount assembly that replaces a plurality of different and separate single purpose mounts, said assembly comprising two quadrilaterally shaped sheets of a suitable semi-rigid plastic material of film thickness dimensions, with the sheets being plastic welded together by a continuous weld lying along the longitudinal center line of the assembly and a plurality of continuous weld lines that extend transversely of the assembly between its side edges and that are spaced apart to subdivide the assembly into a plurality of equally sized subdivisions of two sections each, one such section on either side of the longitudinally extending weld line. The sheets are also bonded together to define a dental X-ray film receiving closed bottom pocket at each assembly section that opens at the side edge of same.

Abstract: Advertising display apparatus including an endless carrier mounting a plurality of display panels such that the leading and trailing edge portion of the panels overlap the adjacent trailing and leading edge portions of adjacent leading and trailing panels, respectively, and curvilinear guide mechanism for guiding the leading and trailing edge portions of the panels out of the planes of the panels to maintain the edge portions of the panels in overlapping relation as the panels negotiate a curvilinear path portion.

Abstract: A fastener for fastening a unitary hand grip to a pistol having a butt frame section with downwardly extending front and rear portions that are interconnected at their lower ends by a foot portion. The fastener has a yoke with side members which straddle the foot portion of the butt section. Locking pawls formed at the upper ends of the side member permits insertion of the butt section between the yoke side members but serve to prevent withdrawal of butt section once inserted. The inside of the unitary hand grip is close to the outer surfaces of said socket members and prevent the opening of the locking pawls of the fastener when the unitary hand grip is installed.

Abstract: A fishhook snelling device has features that allow a line to be easily and tightly secured to the fishhook. The snelling device consists of a ring with an aperture for insertion of the user's finger. A closed loop is located on the rim of the ring. The ring is to be worn with the closed loop on the palm side of the user's hand. The closed loop receives the hook portion of the fishhook while the user ties the line to the eye of the fishhook. The line is tensioned after tying, with the tension being transmitted through the ring to the user's hand to provide a tight knot.

Abstract: A toy having electronic circuitry for generating different sounds simulating sounds resulting from certain activities such as cooking or running water. The toy is in the form of a toy stove provided with a housing having a simulated water delivery tap, a sink below the tap, and a simulated burner section for supporting one or more toy utensils in locations simulating the heating of the utensils. The electronic circuit is carried by the housing beneath the burner section and includes a white noise generator, an amplifier, and a speaker for providing audible sounds corresponding to the output signals of the white noise generator. A sound effects oscillator is coupled with the white noise generator for changing the sounds produced by the white noise generator as a function of the type of utensil on the burner section.

Abstract: The present invention relates to a wall clambering toy having both improved layout of its frame and the structure of its sucker, thereby increasing the security of the attachment of the toy to the wall, enhancing the activity, and reducing the power consumption thereof.

Abstract: A guide rod for rolling a hoop consists of a front wire loop which has a top section defined by two outwardly sloping arms. The arms are then directed parallel towards one another and bent transversely to form a bottom propelling arm. The loop is retained within a slot formed in an intermediate support which section is adjustably mounted within a handle or grip section. In this manner, the guide apparatus can be adjusted in length with the loop section serving both as a propelling means for a hoop, and a braking means for the hoop, under control of a user. The loop as above described is symmetrically disposed about the support section and hence the guide stick can be used by a left or a right handed individual.

Abstract: A toy car adapted to travel on a track assembly is disclosed. The toy car includes a motor coupled to a drive train which drives the car forwards regardless of a direction of rotation of an output shaft of the motor. The drive train includes a first set of gears coupled with a first one-way clutch to drive an axle of the car when the output shaft of the motor rotates in a first direction. The drive train also includes a second set of gears coupled with a second one-way clutch to drive the axle when the output shaft rotates in a second direction. The first set of gears represent a higher gear reduction ratio from the output shaft to the axle than the second set of gears whereby a speed of the forward motion of the car may be altered by reversing the direction of rotation of the motor. The motor of the car draws electric power from the track assembly.

Abstract: A solar powered toy has a plurality of legs each with angularly related sections connected together. Certain of the sections are mounted for relative turning movement, and electric motors powered by solar cells are mounted to turn adjacent sections of the legs, so that movements of the legs of the device change the degree of exposure of the solar cells to the light source.

Abstract: A method of producing an algal turf for use as a scrubber of carbon dioxide, nutrients and pollutants as well as biomass production is disclosed. A growing surface for spores or benthic microalgae is provided on a water surface. The growing surface is subjected to periodic water surge action to promote metabolite cellular-ambient water exchange and light is provided, natural or artificial to promote growth. The growing turf is harvested before being overgrown by larger macroalgae.

Abstract: A tree nursery clip cooperates with a stake to hold a tree in a desired position. The clip has a pair of openings through which a stake is inserted and a pair of bendable arms. The shape of the openings and the cross section of the stake is non-circular so that a plurality of clips can be non-rotatably positioned along the stake. The tree is pulled alongside the stake, and the arms of each clip are bent around the tree to hold the tree adjacent the stake at a plurality of points along the length of the tree.

Abstract: A helicopter mounts special dispensing containers, the dispensing containers supporting racks for stacking planting device transport and dispensing trays within which a series of planting devices are nested for discharge at an open end thereof. The planting devices constitute composite multi-section molded hollow cone bodies of powder molded urea-formaldehyde resin including one nutrient enriched section or band at the seedling side root area, the bodies carrying internally, a compacted growing medium within which is positioned a seedling either grown therein or transplanted therein. The bodies may bear a molded nose cone and may also bear by way of a collar, a propelling wing to increase the drive velocity of the body for forced penetration of the earth formation being planted. The individual planting devices are pushed from the planting device transport and dispensing trays at a rate depending upon the helicopter speed, altitude and planting density desired.

Abstract: Viticultural process with which manual vine dressing or pruning during vine growing can be eliminated. Producing twigs are cultivated from the hanging vine shoots, the twigs having short sprouts, while producing twigs are cut back to eliminate periodicity. Alternatively or additionally, known chemical growth retardants are employed, mainly on the buds and the blossoms. The vine-dressing machine has at least one dressing mechanism on an arm that can be rotated and tilted in addition to being adjustable in height. When of a mechanical construction, the dressing mechanism may include a circular saw or blade for shortening or cutting back the already formed vine shoots, producing twigs and/or other vine parts that need to be spaced apart. The dressing mechanism may also be constituted by a spraying or pulvering attachment with conduits for applying the chemicals that impede or retard budding, and/or to retard blossom growth.

Abstract: A protective sleeve for plants or flowers composed of a pair of sheets of material which are joined together along their side edges to form a tapered tubular sleeve to house the plant. At least one of the sheets is formed of porous, spun bonded synthetic fibrous material to permit circulation of air within the sleeve and enable the plant to be watered directly through the sleeve. The sleeve, due to the use of the spun bonded fibrous sheet, has substantial strength so that the plant can be lifted and handled by grasping the upper end of the sleeve.

Abstract: A road barrier system prevents automobile access by means of a chain array or swinging gate held in place across a roadway between two posts. A motor driven mechanism operates the barrier in response to a key or security access code in two modes of operation, one being open access and the other automatically opening and reclosing the gate after a preset time period.Features include quick operation, energy efficiency, self-powered solar energy as the sole energy input, breakaway features to prevent serious damage to the control equipment upon unauthorized entry by force and high-reliability low-maintenance simple equipment useful in country locations without access to power line energy sources. In this respect, the barrier in one embodiment is built as a part of a cattle guard assembly.

Abstract: A device is disclosed for the automatic remote control and locking of a trunk lid or hatchback 1 connected by a hinge to the upper part of an automobile body around a transverse axis 2 and balanced by a stabilizing device. The hatchback 1 may be controlled by means of a rod 12 which is connected at one end to the hatchback and at the other end to a point of a first cogged sector 17 which is caused to rotate, along a predetermined path, by a remote-controlled electric motor 11. The hatchback may, in addition, be automatically locked after folding back onto the body portion of the trunk 3 by mechanical means 13, 18, 31 brought into play by the electric motor once the rod and first sector have stopped working.

Abstract: A door operator of electromechanical character for utilization with swing-mounted doors is provided in a self-contained unit for mounting as a part of a door frame or for attachment to existing doors and frames. The opener has a door driving shaft mounted for rotation about a vertical axis and connectable to a door for closing and opening of the door when rotated, and a transmission interconnecting a prime mover and door driving shaft for rotation to open the door upon selective delivery of power by the prime mover. A pinion interconnected with the shaft meshes with a rack gear for shifting of the rack gear about a longitudinal axis in response to rotation of the shaft. The unit includes a module of interchangeable character having a preloaded spring and configured for the intended direction(s) of rotation of the door for opening.

Abstract: This invention relates to hurricane panel installations of the type designed to be installed to cover windows and doors against the effects of wind and atmospheric conditions which might otherwise have the effect of destroying the windows and doors and which includes a tamper proof security means of preserving the installation against unauthorized removal of the panel to gain entrance to the premises. This security means is installed at the outer side of the panel in engagement with a securing device to prevent withdrawal of the securing device and the security means is secured from the inner side of the panel where an intruder would not have access so that the panel could only be released from the inside by an occupant of the premises, after which it could be removed from the outside.

Abstract: An expandable window device usable as a storm window includes a track frame for supporting a pair of slidable window sashes. The edges of the track frame are received within U-shaped expander channels adjustable with respect to the track frame for engaging a window casing prior to installation of the window sashes in the track frame.

Abstract: An electric knife sharpener characterized by an electric motor having a stator winding producing a magnetic axial bias on the armature and on a grinding wheel axially displaceable bodily with the armature and by a pair of slots adapted to engage a knife against them and angularly intersecting the grinding wheel whereby a properly inserted blade axially displaces the grinding wheel and the motor armature to achieve a substantially constant magnetic axial bias of the grinding wheel against the blade of a knife upon magnetic action of the motor winding on the motor armature.

Abstract: A machine for smoothing and/or polishing lenses comprising a holder which is carried on a slide. The slide is guided for movement in two mutually perpendicular directions, both of which are perpendicular to a main axis of the machine. The slide is moved in a plane perpendicular to the main axis along a curved path which results from the combination of two orbital motions produced by cams. One cam is secured to the main shaft and rotary motion is transmitted to the other cam by an element which rotates about the axis of the main shaft and is driven from the main shaft through a transmission means which has a velocity differing from unity.

Abstract: Descaling apparatus for steel rod wherein the rod is first bent by two sets of rollers oriented perpendicular to each other to initially dislodge the scale from the surface of the rod. The scale is collected in a hopper then conveyed to a tank where it is mixed with and suspended in water. The scale and water mixture is pumped out of the tank then projected against the surface of the wire as it passes through a descaling chamber by a series of nozzles staggered angularly and longitudinally through the chamber. The mixture following the descaling operation is collected and conveyed to a hydrocyclone and separator which recycles the larger scale particles and water while disposing of the finer scale particles which are too small for use in the descaling operation.

Abstract: A tumbling apparatus for use in drum blast machines has a first endless belt defining a pocket for receiving workpieces to be tumbled and blast cleaned by abrasive projected at high speed against the workpieces. As the workpieces are tumbled by the belt, they fall onto a portion of the pocket called the cascade zone. A second endless belt is provided underneath the cascade zone of the pocket to give support to the first belt while preventing any anvil pinching of the first belt.

Abstract: A sand-blasting apparatus which is operated by a vacuum system, wherein there is provided a sand-blasting gun having an air-inlet passage and a sand-inlet passage. Air is discharged into a mixing chamber, creating a vacuum therein to suck sand through the sand-inlet passage, and to discharge the sand under high-velocity so as to impinge against the surface to be sanded, the sand being captured within the enclosed discharge end of the gun and then returned to the sand-storage tank under a return vacuum arrangement defined by a continuous low-vacuum flow and a controlled high-vacuum flow, the high-vacuum flow being activated when the trigger valve of the gun is operated.

Abstract: A bladed centrifugal blasting wheel formed of a pair of spaced parallel wheel plates having a central opening through which blades are inserted into grooves extending radially from the central opening through the adjacent surfaces of the wheel plates, improvements including means for locking the blades between the wheel plates, impeller and control cage means for feeding particulate material onto the ends of the blades with centering means forming a part of the impeller for locating the elements in the central opening, resilient means adapted to be engaged by the blades upon insertion for holding the inserted blades during assembly, indicator means for showing the position of the control cage and means for providing air curtain to prevent accumulation of stray or rebound abrasive in the hub seal area during rotation of the bladed wheel.

Abstract: The disclosure relates to the field of composition shingles and in particular the types of shingle known as strip or tab shingles. Heretofore shingles having nonuniform random or jagged butt edges have relied on locating indicia on the upper covered portions of the leading and trailing edges thereof, or on the upper edge of the overall shingle, to aid in positioning these shingles relative to one another on a roof deck. Tab shingles have been able to eliminate at least some of the locating indicia in these areas by relying on uniformly sized and positioned slot cutouts to locate the uniform butt edges of the overlapping shingle relative to the shingle being overlapped. The present shingle includes at least one slot dividing the butt edge into two tabs and a knife slit in one of the tabs. The lower edge of the tabs corresponding to a portion of the butt edge of the shingle include specifically shaped locating edges.

Abstract: The bottom flutes of a fluted deck or diaphragm of a building are fixedly attached to a horizontal load bearing member supported by vertical load resisting members. A load translation member precludes relative movement between the top flutes en masse and the bottom flutes en masse. By precluding relative movement of the top and bottom flutes, the shear loads imposed upon the diaphragm by earthquakes and/or high winds are translated through the load translation member and the load bearing member to the vertical load resisting members.

Abstract: A basement wall drain unit for removing moisture from a basement wall formed of concrete blocks resting on a footing adjacent a concrete basement floor, wherein the concrete floor is poured against the drain unit so that a space is formed between the drain unit and an inner surface of the wall and between the drain unit and the footing into which moisture may drain from the interior of the wall through drain passages in the wall and then down beneath the basement floor to a weeping drain.

Abstract: A two section bulletproof window and method of making the same is shown. The outer section is multi-layered, the outer layer being safety plate glass. Inner layers of the outer section are composed of polycarbon laminate. The inner section is also composed of layers of polycarbon laminate and is separated from the outer section by a space containing dry nitrogen gas at about 2.5 pounds per square inch pressure. The space is necessary to allow for differential rates of expansion and contraction of the sections and layers without damaging the window. The positively pressured dry nitrogen gas is necessary to maintain a dust free and moisture free atmosphere within the space. An inexpensive pressurized nitrogen gas reservoir is utilized to guarantee long term maintenance of the positive nitrogen pressure within the space. The method of making the protective window involves continuous purging of the space with the dry nitrogen gas while the different sealants involved are curing.

Abstract: In a double sash structure comprising a first sash facing to the outside and a second sash facing to the inside, a window frame of the first sash is formed of a metallic material and a window frame of the second sash, which is formed of a non-metallic material having a low heat conductivity, is disposed contiguously to the window frame of the first sash. By virtue of the low heat conductivity of the window frame of the second sash, lowering of the temperature in the room and formation of dew by condensation of moisture can be prevented. Accordingly, a double sash structure excellent in the heat-insulating property and having a beautiful appearance and an improved strength, which can be readily assembled, can be provided.

Abstract: A two piece extrusion for use in forming storm windows or the like is cut to frame an existing window opening. One extrusion comprises a locking element of which the main portion is formed of a substantially rigid plastic material, which is provided with spaced integral, flexible projections extending angularly outwardly from the stem of the element. The locking element is adapted to be inserted in a channel which comprises the second extrusion. The second extrusion is formed into a rectangular frame so as to hold a flexible translucent, transparent, or opaque sheet locked in the channel by the first extrusion. In assembly the flexible sheet is forced into the channel by the insertion of the locking element. In so doing the flexible sheet is stretched to give a smooth appearance. A second channel is formed by the second extrusion which also extends completely around the frame but is located inwardly of the first channel.

Abstract: A building structure including a beam of steel or rod reinforced concrete which is sheathed in a U-shaped cross section steel shell, a concrete column which is encased in a steel tube, diagonal bracings and connecting members thereof. The topside of the U-shaped steel shell is open to allow concrete to be filled therethrough. Steel rods are placed in the shell and a steel panel connecting member secures the opposed sidewalls of the shell. Steel bars extend from a floor slab into the beam shell through the aforesaid open topside, thereby rendering the beam integral with the slab. Frame-like steel members for confining reinforcing bars and/or shear connectors are disposed in the inside of the beam shell. A steel sleeve is also provided in the beam shell for defining a space for disposition of equipment. In addition, an opening is provided in the bottom wall of the beam shell so as to allow steel rods to extend from the wall into the beam shell, thereby rendering the beam integral with the wall.

Abstract: Walls and partitions are constructed by securing of wallboard panels to a substructure, such as common wood or metal framing members, by a series of concealed clips of described construction, affixed to the framing members by nail or screw type fasteners. When the wall or partition is erected the fasteners are hidden from view so that joint treatment of the wallboard panels may be reduced or eliminated, depending on the type of wall structure constructed. The side or edge gripping clips are impaled along each side of abutting panels. When erected, a first series of clip fasteners are impaled on a side of a first wallboard and fastened to a framing member and a second series of such fasteners are impaled on an abutting or nearly abutting side of a second, wallboard panel, offset from the first series of clips so as to fit behind and be held by the first panel in a "tongue and groove" type cooperation.

Abstract: A system of tiles for constructing a decorative lattice is disclosed. A basic square section of tile is formed of crossed strips, framed by a border which is much thinner than the strips. The strips are arranged in such a way that when several of the square sections are placed together, the strips appear to run from one tile to the next. In addition, there are tiles comprising various portions of the square section which may be arranged to form arches and other curved shapes.

Abstract: A beveled edge trim structure for counters, such as kitchen counters, includes a beveled inlay groove cut along an edge of the counter. A laminate inlay strip is adhesively bonded in the inlay groove. A first router tool includes guide surfaces which guide a first high speed cutting element along straight and rounded edges of the counter, cutting beveled inlay grooves along the edges. For right angle corners, a jig is attached to a partially installed inlay strip after alignment of a pair of inclined guide edges of the jig with corresponding inclined end edges of the beveled inlay groove. A second routing tool is guided along the inclined guide edges of the jig, cutting a beveled pointed end on the inlay strip. The beveled pointed end is aligned with the corresponding edges of the corner inlay groove.

Abstract: In the support of a concrete form panel, an elongate beam, acting as a waler, is employed that is in the general cross-sectional shape of an I-beam having an outwardly opening pocket extending along one edge to retain a nailer for securing the beam to the form panel and a Y-shaped segment extending along the opposite beam edge. The Y-shaped segment is formed by legs which are parallel for one length thereof to define an outwardly opening cavity there between and then the legs diverge outwardly for a second length with oppositely directed flanges extending from the outer ends of the diverging second length of the legs. A bracket having a flat portion inserted into the beam cavity is secured in the cavity and has a tubular portion connected to the flat portion, the tubular portion accommodating a fastening element therewithin to fasten the bracket to a stiffener member, preferrably provided by spaced outwardly facing channels with the bracket tubular portion disposed between the channel webs.

Abstract: An elongate metal furring strip for an insulation system for attaching cellular insulation to a masonary wall having the strip formed in a general U-configuration. The metal strip has an integral spacer so a fastening portion of the strip is elevated above the surface of the insulation sheet providing for a dead air space when a finishing panel is attached to the strip. In the preferred embodiment, the spacer comprises a filler of insulative material extending between the legs of the strip.

Abstract: The roof structure (10) comprises spaced parallel I-beams (12), spaced parallel generally Z-shaped purlins (14) extending transversely of and supported by the I-beams (12), insulation support members (16) hung on the purlins (14), fibrous glass boards (24) with facing (25) supported by the insulation support members (16) beneath the purlins (14), fibrous glass batts (26) covering the boards (24) between the purlins (14), and roof panels (28) secured to the purlins (14) and covering the batts (26), each insulation support member (16) comprising an elongated board-edge sealing member (20) supported respectively adjacent opposite ends by a pair of hangers (18) hung on a purlin (14) and each having a pair of guide and support arms (22) respectively extending oppositely therefrom transversely of the board-edge sealing member (20).

Abstract: The roof structure (10) comprises spaced parallel I-beams (12), spaced parallel generally Z-shaped purlins (14) extending transversely of and supported by the I-beams (12), insulation support members (16) hung on the purlins (14), fibrous glass boards (24) with facing (25) supported by the insulation support members (16) beneath the purlins (14), fibrous glass batts (26) covering the boards (24) between the purlins (14), and roof panels (28) secured to the purlins (14) and covering the batts (26), each insulation support member (16) comprising an elongated board-edge sealing member (20) supported respectively adjacent opposite ends by a pair of hangers (18) hung on a purlin (14) and each having a pair of guide and support arms (22) respectively extending oppositely therefrom transversely of the board-edge sealing member (20).

Abstract: A truss incorporates metallic webs of differing gages, and in protected positions between chord members, to enable its use as a floor joist.