Abstract: A shopping cart station has flee-standing first and second hollow wall members filled with a ballast material. A connecting element couples the first and second hollow wall members together. The cart station can be easily moved and secured by emptying the hollow wall elements of the ballast material, repositioning the cart station, and refilling the wall members with ballast.

Abstract: A contiguous wall of mutually parallel, adjacent stacks of used motor vehicle tires defines a guard rail or dock fender. The device includes a frame which resembles a U lying on its side. Spindles extend between the legs of the U and the spindles extend through the hub openings of a stack of tires. The stacks of tires are rotatable relative to the frame, so as to absorb force components acting parallel to the wall of tires.

Abstract: A road vehicle halting device comprising a support member, a plurality of support elements, means mounting the support elements on the support member, each supporting element supporting a generally upwardly extending spike, a plurality of downwardly extending road engaging formations, means mounting the road engaging formations on the underside of the support member, the road engaging formations each being configured so that in the event of a vehicle driving over the device, at least one of the formations digs into the ground.

Abstract: A handrail positioning apparatus for accurately positioning a handrail during the process of installing the handrail in an inclined position on a building wall above an inclined stairway. The apparatus may include two vertically adjustable stanchions positionable at the upper and lower ends of the stairway. Miniature platforms are tiltably mounted on the upper end portions of the stanchions to underlie end areas of a handrail. C-clamps may be used to clamp the handrail to the platforms. The platforms are so tiltable that the platforms can seat flatwise against the handrail, whatever the slope or inclination of the rail, and the stanchions are vertically adjustable to control the rail slope and rail height.

Abstract: A fall protection system for bridge construction includes a plurality of generally T-shaped cable supports securable to the concrete support columns of a bridle or overpass during construction. A plurality of cables are coupled between the T-shaped supports which receive a corresponding plurality of slidable safety belt attachments for use in securing a plurality of construction workers wearing appropriate safety harnesses to the overhead cables. Embodiments are shown in which the T-shaped cable supports are secured either to the extending reinforcement bar cages of each concrete support column or, alternatively, received directly within a suitably formed closed end bore within the concrete pier of the support column.

Abstract: Workmen are required to spray whitewash on sloping glass roofs such as used in greenhouses at certain seasons and then to scrub the whitewash off the glass later on. Ordinarily workmen support themselves on the narrow gutter alongside the roof or between roofs. According to the invention, brackets are installed at each end of the gutter and, if the roof is long, intermediate the ends. Two cables are supported by each set of brackets. The workman wears a safety belt from which extend two short ropes having snap books to be attached to the cables.

Abstract: A portable barrier strip having retractable tire-puncture means for puncturing a vehicle tire. The tire-puncture means, such as spikes, have an armed position for puncturing a tire and a retracted position for not puncturing a tire. The strip comprises a plurality of barrier blocks having the tire-puncture means removably disposed in a shaft that is rotatably disposed in each barrier block. The shaft removably and pivotally interconnects the plurality of barrier blocks. Actuation cables cause the shaft to rotate the tire-puncture means to the armed position for puncturing a vehicle tire and to the retracted position for not puncturing the tire. Each tire-puncture means is received in a hollow-bed portion of its respective barrier block when in the retracted position. The barrier strip rests stable in its deployed position and substantially motionless as a tire rolls thereon and over.

Abstract: An article and method of maintaining wooden fence posts from attack by landscaping equipment in which the base of the post is encircled with a hard plastic cuff having a smoother surface than the post such that string cutters used in edging around the fence post create a smoother and cleaner cut of the vegetation with the cuff as a backing while protecting the post from attack by the tip of the string element.

Abstract: A partition pole system for guiding visitors in public spaces, buildings, or the like has a plurality of spaced partition poles each composed of a base and a hollow pole mounted on the base, and a plurality of partition cords housed in the poles, respectively, for withdrawal therefrom through respective withdrawal holes thereof. A connector is mounted on a distal end of each of the partition cords for connection to the coupling of another pole. Each of the poles houses a vertically movable weight for pulling each of the partition poles into one of the poles, and a releasable stopper for keeping each of the partition cords withdrawn out of one of the poles. The poles may be vertically mounted on the respective bases or inclined with respect to the respective bases.

Abstract: A new and improved rolling gate stopping and locking system comprising a steel pole having a first end, a second end, and an intermediate extent therebetween. The steel pole has an aperture drilled therethrough upwardly of the first end. The steel pole is positionable within an aperture drilled through a stationary portion of a rolling gate. Included in the system is a rubber head having a flat upper surface and a contoured lower surface. The rubber head is secured to the second end of the steel pole. The second end of the steel pole extends upwardly through the contoured lower surface. The contoured lower surface corresponds with the stationary portion of the rolling gate to prevent the rolling gate from advancing thereby opening the rolling gate. A padlock is securable to the aperture drilled through the steel pole. The padlock serves to lock the steel pole to the rolling gate.

Abstract: A tire puncturing spike strip is disclosed which can be placed on a road surface in front of a moving vehicle. The spike strip is comprised of essentially rectangular modular frame units with low height for easy storage in a trunk of a police vehicle, and the frame units have interlocking ends which can be quickly assembled in any desired length for placement across a roadway with spikes in a normal down position to allow safe passage of vehicles over the strip, but said spikes may be selectively and remotely activated to their up position electromechanically by an operator to target a specific fleeing vehicle. Once the fleeing vehicle crosses over the strip, the spikes may be electromechanically returned to their down position to allow pursuing police cars to safely cross over the strip and apprehend the disabled fleeing vehicle.

Abstract: A portable line barrier including a plurality of telescopically extendable poles. Further provided are a pair of line payer heads. Each line payer head is coupled to a separate pole and each head has a container with a hollow interior and a closeable opening for allowing access to the interior. A spool is disposed within the interior of the container and is rotatably coupled to the container. A plurality of loops with each loop are coupled to a separate pole which is not coupled to a line payer head. Each loop is adapted for holding a cable within. A cable which has one end coupled to and wrapped around the spool of one of the line payer heads is included. Another end extends through the loops of the poles and is coupled to and wrapped around the spool of the other line payer head such that the poles, line payer head, and loops create an extendable barrier.

Abstract: The fencing construction comprises a sleeve for covering an elongated beam. The sleeve has a pair of symmetric L-shaped parts provided with opposite male and female interlocking members longitudinally extending along free edges thereof for meshing in a locking engagement and holding the two parts together around the beam. It allows to either upgrade an existing fence or construct a new fence with low cost materials, such as wood, and transform at least parts thereof into a PVC-like fence for improving its service life.

Abstract: A plurality of corner posts positionable in a rectangular array, each corner post including a cylindrical tube positionable in a vertical orientation, each tube having a lower end and an upper end with a cap with a closed top positionable over the upper end and an extension member positioned over the lower end, the extension member being cylindrical in configuration with an internal shoulder adapted to receive thereagainst the lower end of the tube, the upper cap and lower extension member being formed with outwardly extending rings adapted to support corners of a screen, the lower end of the extension being formed with upwardly extending recesses for forming spring urged tangs therebetween; and a plurality of bases, each base adapted to receive the lower end of the extension member and positionable in a rectangular array beneath the posts and extension members, each base including a planar lower surface and a generally hemispherical upper surface with a vertical recess formed to extend downwardly from the up

Abstract: A flat retainer device has elongated fingers on the left and right sides thereof, said fingers running opposite a side wall of the central portion of the retainer. A slot is formed between each of the fingers and the central portion, the fingers and the main body portion forming a locking hook structure. A protuberance is formed on the lower portion of each side of the central portions opposite each finger, these protuberances closing off most of the opening to the slot on the free end of the fingers. The left and right hand sides of the device are mirror images of each other and have the same structural characteristics. The top and bottom ends of the central portion of the device have indentations formed therein. An elongated groove is formed in the slat, the length of this groove being designed to receive the central portion of the retainer member with the indentations thereof abutting against the end walls of the groove in a force fit relationship.

Abstract: A tire-puncturing apparatus is disclosed which can be placed on a road surface in front of a moving vehicle such as an automobile. The apparatus has a collapsible outer cover which makes it safe to handle the apparatus before its use, yet being collapsible, does not impede the operation of the apparatus in puncturing the tires of the target moving vehicle. The apparatus also has a flexible interior cover made of rip-resistant material. A special three-piece spike is used to first penetrate the tire's surface and then embed a hollow quill in the tread of the tire such that the tire will deflate at a controlled rate, rather than causing a blowout and subsequent loss of control of the vehicle. The tire-puncturing apparatus is designed to be easily carried in the trunk of a police vehicle, and has an optional mating connector such that two or more of the tire-puncturing devices can be rigidly connected together to cover a larger portion of the road surface.

Abstract: An animal deterrent device is disclosed which comprises an open lattice or grid of moulded low density polythene and having flexible spike formations projecting therefrom approximately normally thereto. The device is placable on the ground to cause discomfort to animals from stepping on them and thereby deter animals from the area protected by the device. In one embodiment the device is fixable in the ground by ones of said flexible spike formations entering into the ground, and in a second embodiment the device is fixable in the ground by means of anchor members normally lying in the plane of the device but which may be bent out of the plane of the device to extend to one side of the lattice or grid. The anchor members are in the form of broad arrows having triangular or barbed ends which act firmly to hold the device in a position in which it is placed.

Abstract: A bracket is provided that is rigid and can be attached to a solid surface. The bracket allows a vinyl fence post to be fitted over and locked in place thus avoiding the necessity of pouring concrete into the post to provide a rigid post. The bracket has a base plate with bolts or anchor bolts that connects to a solid surface, an elongated member extends up from the base plate and has a cross-section to provide a sliding fit within a fence post. An expansion mechanism is provided at the top of the longitudinal member with tapered sides extending from within the longitudinal member to a larger cross-section than within the longitudinal member, and a tensioning bolt between the expansion basket and the bracket to force the expansion basket within the longitudinal member and expand the bracket to grip a fence post positioned over the longitudinal member.

Abstract: A system for attaching a sign to a chain link fence of the type having post-supported interwoven wires producing a matrix of wire lengths extending between wire cross-over centers. The system comprises a sign, to the rear surface of which one or more attachment devices are secured. The attachment devices each comprise a pair of sections each having a face with circumscribing sides and interlocking means to secure the sections together along edges of their sides. The sections, when secured together over a cross-over center produce a hollow device having opposed faces and sides extending therebetween. The sides of the device have slots, when the device is so seated, located as to be seated over corresponding portions of the wire lengths extending outwardly from that center. A plurality of such devices supporting a sign, when secured to a chain link fence at predetermined locations, provide a simple and secure means for securing a sign to a chain link fence.

Abstract: The present invention relates to a modular security fence and, more particularly, to a plurality of interconnectable fence panels, each fabricated of weather proof recyclable materials. The fence panels can be produced in a variety of colors and sizes ranging from decorative landscaping fences to privacy fences. No staining or painting is required. These fence panels are formed to interconnect with one another and are secured together, preferably, through the use of threaded fasteners. Each successive panel conceals the unsightly fasteners which secure the preceding interconnected panel. The fence panels require virtually no maintenance. A number of panels can be interconnected prior to distribution, thus providing preassembled sections of fence. Optional panels may be formed to include utility boxes to accommodate electrical devices such as light fixtures, receptacles, and security devices. A fence of this type is durable, demanding little repair, and is not likely to fall prey to vandalism.

Abstract: A plastic fence post and cap are secured to each other by a spring tab arrangement which is completely concealed after assembly. In one embodiment, a bottom section of the cap fits over the end of the post and tabs projecting inwardly from opposed panels of the bottom section extend into holes extending through opposed sides of the post. In a second embodiment, a bottom part of the cap is received within the tubular post and has outwardly extending tabs that spring into recesses provided along inner sidewall surfaces of the post.

Abstract: A fence post cap is provided which is formed from plastic materials and having a fastener support member, which resists cap deformation during application of the fastener and includes fluid sealing portions about the fastener, and locating studs adjacent the perimeter sides of the cap to facilitate positive seating of the cap on the fence post. The plastic material can be molded in any desired color to match or contrast the fence color. The fastener is received within a counter bore such that the fastener head is more isolated from inadvertent contact after installation.

Abstract: A safety cable restraint system for easy attachment to the rail of a railroad track crossing a bridge including a restraint cable anchored at each end to a leg clampable to the rail so as to hold the cable ends outboard of the rail and a plurality of intermediate cable supports secured to legs clampable to the rail for holding the restraint cable above and outboard of the rail. The legs are preferably adjustably clamped to the rail to accommodate rails of different sizes and the legs are adjustably spaced to accommodate different sizes and spacings of rail ties.

Abstract: A recreation area boundary and safety restraining barrier device and kit therefor is disclosed. The device includes a net having first and second edges, resilient net supports disposed near at least one of the first or second edges of the net for supporting the net, and support posts mounting the net in a substantially vertical orientation such that either the first or second edges thereof is in close proximity to the ground such that objects contacting the net are prevented from passing between the either first or second edges of the net and the ground. A kit is also disclosed containing at least two support posts, a length of netting material, and a length of resilient cord attachable to the netting material and the at least two support posts. The kit may further include at least two support post receiving sleeves.

Abstract: A hanger includes a bracket with forward and rearward panels, and a connecting panel connecting the upper ends of the forward and rearward panels, to support bracket on a lattice. The connecting panel of the bracket has a generally V-shape lower surface which closely fits the upper surface of a strap intersection on the lattice, formed by the upper longitudinal edges of a pair of forward and rearward straps. A support arm mounted on the forward panel includes a horizontal arm projecting forwardly therefrom with a hook for suspending an object from the lattice. In one embodiment of the invention, a rod is mounted on the rearward panel and extends upwardly therefrom to engage a second strap intersection above the strap intersection upon which the bracket is mounted. In a second embodiment of the invention, the bracket is locked in position on the strap intersection by connecting the lower ends of the forward and rearward panels below the strap intersection.

Abstract: A decorative form for a chain link fence of the type having post-supported interwoven wires producing a matrix of wire lengths extending between wire cross-over centers. The form is to be used with other similar forms to produce a decorative pattern over an area of the chain link fence. The form comprises a pair of sections each having a face with circumscribing sides and interlocking means to secure the sections together along edges of their sides. The sections, when secured together over a cross-over center produce a hollow form having opposed faces and sides extending therebetween. The sides of the form have slots, when the form is so seated, located as to be seated over corresponding portions of the wire lengths extending outwardly from that center. A plurality of such forms, when secured to a chain link fence at predetermined locations may produce a predetermined design.

Abstract: A protective device for covering a barb in a strand of barbed wire is disclosed. The barb has a plurality of outwardly extending points disposed around the strand with the strand extending axially outwardly from opposing sides of the barb.In a first embodiment, the protective covering device of the present invention has an upper shell formed in a substantial hemisphere and a lower shell formed in a substantial hemisphere. A color agent may be optionally added to the upper and lower shells in order to provide high visibility when attached over the barb. A living hinge connects the upper and lower shells in a pivoting relationship so that the upper shell can pivot towards to lower shell. Male and female locking elements are provided on the upper and lower shells for locking the two hemispheres together over the barb. When locked, the barb is located in a formed hollow interior of the two shells and is fully protected from causing damage to animals and the like.

Abstract: A fence post end cap is attached to the top of a hollow cylindrical fence post. The end cap has a plurality of different-sized bores which are capable of supporting lawn decorations or accessory items. The items that can be supported by the end cap include but are not limited to a flagpole, a birdhouse, a planter, or even a hook for a coiled garden hose.

Abstract: A tire-puncturing apparatus is disclosed which can be placed on a road surface in front of a moving vehicle such as an automobile. The apparatus has a collapsible outer cover which makes it safe to handle the apparatus before its use, yet being collapsible, does not impede the operation of the apparatus in puncturing the tires of the target moving vehicle. A special three-piece spike is used to first penetrate the tire's surface and then embed a hollow quill in the tread of the tire such that the tire will deflate at a controlled rate, rather than causing a blowout and subsequent loss of control of the vehicle. The tire-puncturing apparatus is designed to be easily carried in the trunk of a police vehicle, and has an optional mating connector such that two or more of the tire-puncturing devices can be rigidly connected together to cover a larger portion of the road surface.

Abstract: A generally "U" shaped self adhering plastic extrusion is firmly fitted to the bottom portion of a chain link or wooden fence without fasteners. Upstanding walls of the elongated plastic body are tapered towards the center having a neck for accepting the fence and a curved bottom to provide a channel on each side to rapidly drain off water. The tapered walls grip the fence in frictional engagement to hold the body member in place. The assembly includes short coupler members shaped to slide longitudinally in close frictional engagement over the outer surface of the body members where abutting ends are found. Couplers help secure the body members in place and cover the joint. The raised central ridge running along the length of the bottom positions the edge protector with respect to the bottom of the fence and holds the bottom of the fence elevated above drainage channels to protect the fence from moisture or termite damage.

Abstract: A stanchion with sleeve includes an elongated member secured to a fixed structure and extending generally linearly away from the fixed structure. The sleeve has an elongated body extending curvilinearly between two opposing ends. An interior cavity extends along the sleeve and through one end of the sleeve. The interior cavity has a cross-sectional shape adapted for slip fit engagement with the stanchion post. The sleeve is formed with a curve for receiving the stanchion post in the interior cavity in force fit engagement.

Abstract: An anti-vehicle barrier, which includes a pad made of a compressible material, such as closed cell polyurethane. Distributed throughout the pad is an array of upwardly directed hollow metal spikes for puncturing the tire of a vehicle which rides over the pad. The spikes may be removable so that upon puncturing the tire, they are removed from the pad and are retained by the puncture tire so as to bring about its rapid deflation. When deployed in the pad, the spikes may be flush with or are below the top surface of the pad, and may be connected to each other or directly to the pad, or to both.

Abstract: The present invention relates to a temporary rail structure that includes a series of vertical posts that are interconnected by horizontally extending side rails. Each post is designed to clamp around the top portion of a band that extends around floor joist that support a sub-floor thereabove. Around the entire floor structure is formed a series of spaced apart openings, each opening cut in the sub-floor adjacent the inside of the band. Each temporary post includes a U-shaped yoke that includes one leg that is inserted downwardly through the opening formed in the sub-floor such that this leg extends adjacent the inside of the band. A screw-type tightener is secured to another leg of the yoke and is screwed from the outside so as to tighten down on the band.

Abstract: Proper access for enabling fire hoses to be readily coupled to the hose connections of a fire hydrant is provided without needlessly sacrificing valuable adjacent parking space for motor vehicles by utilizing upwardly oriented fire hydrant hose connections and/or by utilizing open-walled, cage-like protective enclosure components to maintain good and sufficient hydrant clearance and hose connection access space in regions that extend about the hydrant's hose connections. In one preferred form, rounded elbow pipe segments are threaded onto the hose connections of an existing fire hydrant and are rigidly secured in place thereon to provide upwardly oriented fire hydrant hose connections, and/or protective enclosure components are attached to the existing fire hydrant to provide an open-walled cage-like structure that maintains proper obstruction-free access space in regions that extend about the hydrant's hose connections so that fire hoses easily can be coupled to the hydrant.

Abstract: A boulder rolling down a slope is caught with an energy absorbing device to dissipate a portion of its kinetic energy and to redirect the boulder downwardly into the ground to absorb the rest of the kinetic energy and to stop it. This is accomplished by temporary deformation of joints in the energy absorbing device to dissipate the kinetic energy and redirect the boulder downwardly into the ground. The energy absorbing device will return substantially to its undeformed state for intercepting additional boulders which may roll down the slope.

Abstract: An underground housing contains a netting that is retractably attached inside the housing. The netting is used to cover rubbish positioned at curbside, to keep dogs and children away from the rubbish. The netting also acts to hide the rubbish until it is picked up.

Abstract: A device to aid persons rising from a seated position. The device comprises a structural support having a base positionable under a chair and a brace secured to the base. A sleeve is secured to the structural support for securing one end of an arm thereto. The other end of the arm has a griping section enabling a person seated in the chair to grasp the arm and pull himself up to an upright position.

Abstract: The ground anchored post is made exclusively from the steel-belted treads and metallic wire rings of reclaimed, used, pneumatic tires. Each used tire is cut with a shearing tool to remove therefrom the rubber side walls thereof. A selected number of treads are then compressed flatly against one another, while a plurality of wire rings engage by their hollow the compressed pack of treads. The total number of treads selected is a function of the thickness of each tread and of the diameter of the tires, whereby the number of treads is high enough to provide taut, friction-fit engagement of the wire rings around the pack of treads. The taut engagement of wire rings around the pack of treads positively prevents the treads from engaging in sliding displacement relative to one another.

Abstract: An edging assembly to help control growth in landscaped areas comprising a plurality of slats formed of a material allowing the slats to be curved or bent along their length and further including joining means which interconnect correspondingly positioned ends of the slats in an end-to-end orientation. Anchor structures are disposed at spaced apart locations along the collective length of said plurality of slats and are so arranged in their end-to-end orientation so as to removably grip and concurrently secure the plurality of slats to the ground surface in surrounding or adjacent relationship to landscape to be protected from grass, weeds, or like agricultural growth.

Abstract: A fencing system comprises hollow posts of UPVC, preferably divided in two longitudinal compartments, one compartment for fitting loosely over a ground-engaging spike and securing with a settable material, and the other compartment for receiving the ends of rails via apertures formed in opposed faces or walls of the posts.

Abstract: An improved vehicle tire deflator that is a foldable and can be deployed by pushing it or pulling it to an extended attitude across at least one full traffic lane. The deflator includes a plurality of rocker arms that are each pivotally coupled to base supports, forming a frame that is collapsible and when extended, includes a stop arrangement for holding the rocker arms apart. The rocker arms each include a plurality of actuators that incorporate spaced center holed and countersunk spike base bosses, each boss to accommodate an end of a hollow spike and attached resilient grommet fitted therein.

Abstract: The support (10) is securely clampable to a raised profile (12) of the roof decking (14) without piercing the decking and supports a safety barrier (34). Alternatively the support (10) may support a display sign or formwork locator. The support (10) comprises a clamp (24) and a support element (25) over which an upright support post (26) carrying the barrier (34) is telescopically received. The clamp (24) comprises a pair of clamping jaws (36 and 38) which are pivoted to each other and have respective feet (56) at their ends remote from the pivotal connection (44). The feet engage the deck (14) and particularly have respective projecting flanges (66) which cooperate with opposed undercuts on the raised profile (12) when the clamp (24) is tightened by a screw threaded arrangement (50, 52) remote from the pivotal connection (44). A brace (68) is provided with a clamp (84) similar to the clamp (24 ).

Abstract: An energy absorbing roadside crash barrier includes a scissors linkage having first and second ends. The scissors linkage is movable between an extended position and a collapsed position. A mounting element is coupled to the first end of the scissors linkage to mount the scissors linkage to a roadside obstacle. Deformable energy absorbing elements are mounted to the scissors linkage and positioned such that movement of the scissors linkage from the extended to the collapsed positions deforms the energy absorbing elements, and the energy absorbing elements thereby progressively resist collapse of the scissors linkage. A tension member is secured to the scissors linkage to apply a restraining force to hold the scissors linkage in the extended position, until forces tending to collapse the linkage exceed a pre-set range of values.

Abstract: An impact absorbing barrier (10) for use in conjunction with moving vehicles or the like and a method of constructing includes a plurality of torroid-like bumpers (12) stacked vertically to form a cylinder (14). The bumpers (12) of the cylinder (14) are permanently bound together by bands (16) to form the barrier (10). At least one coupling (20) is attached to one of the bands (16) to allow multiple barriers (10) to be attached in a chain-like manner to form a guardrail.

Abstract: A stake (10, 80) is provided which can be used for edging gardens and lawns or for the formation of forms for concrete foundations and slabs. The stake (10, 80) is moulded from a synthetic plastic material and comprises a leading end (12) which is tapered for penetrating the ground and a trailing end (14) which is provided with a beam-receiving formation (16) thereon for receiving a beam therein. The beam receiving formation comprises at least one pair of planar side members (18, 20) which are spaced from one another. A plurality of the stakes can be provided as a garden edging kit or a concrete formwork kit.

Abstract: A support device (10) for use with chairs (100) wherein the support device (10) includes an enlarged generally flat rectangular base member (13) provided with a pair of adjustable support arm members (15) on its sides wherein the weight of the chair (100) enhances the frictional engagement of the bottom surface (13") of the base member (13) with the floor even before the user attempts to sit in the chair (100) or otherwise comes into contact with the support device (10).

Abstract: The invention relates to a protective device adapted to be mounted at the base of a roof. The device has a set of posts each having a base section which locates in the gutter at the base of the roof and a fixing device linked to this base section, at least two arms being linked with a pair of posts, by upper parts and lower parts mounted on the posts, at least two bracing wires with each of these bracing wires being linked to one of the posts to connect it to a respective anchoring element located on the roof and a net connected to at least one of the arms and to two of the posts.

Abstract: A crowd control barrier system is formed by regular barrier units interlocked end to end, with special wheeled units at intervals which provide elevated platforms for crowd surveillance. The special units can be converted to provide mobile storage racks for the regular units, which mobile racks can be wheeled onto a trailer or other vehicle for transportation and storage. The regular barrier units are formed of two continuous tubular members, one forming a frame for a vertical panel and one side of a base frame, and the other forming the other side of the base frame and vertical members welded to vertical portions of the first member to form vertical stanchions supporting the panel.

Abstract: An impact attenuating device such as a truck mounted attenuator includes at least two cartridges, which are secured together by flanges and angled backing elements on adjacent portions of the upper and lower sheets of the cartridges. The forwardmost bay of the impact attenuating device includes stiffening elements on the lower surface and deformable elements which come closely adjacent to the lower surface of the impact attenuating device in order to urge an impacting vehicle with having a low bumper height upwardly, toward the center of the impact attenuating device. The end of the impact attenuating device initially struck by an impacting vehicle is covered by a resilient collapsible element having parallel pleats and recessed corners, such that the collapsible element can absorb low energy impacts without damage to the impact attenuating device.

Abstract: A safety device for protecting personnel against falling from a platform of a printing press having a handrail anchored to the printing press, and a kneerail located below the handrail, including devices for swiveling the kneerail and devices for releasably locking the kneerail both in an inwardly swiveled position wherein it blocks access to the platform, and in a normal position wherein it is disposed below the handrail.