Abstract: A climate controlled practice facility comprises an enclosable building having an access door to permit into the building's interior, a pressurization unit for pressurizing the interior to a selected pressure differential, and a plurality of items located within the interior correlated to a selected sporting activity and arranged to simulate an appearance of at least a portion of a playing environment. In one embodiment, the climate controlled practice facility is a baseball practice facility for acclimating players to selected playing conditions. Here, a practice region is located within the enclosure interior and includes a pitching station and a batting station spaced apart therefrom. Players may enter the enclosure and practice for an interval of time while being exposed to a set of metrological conditions, such as pressure, temperature and humidity, that are regulated by a climate controlled system. A method of practicing a selected sporting activity is also provided.

Abstract: A modular command post system comprised of removable interconnecting truss elements is provided. The modular command post system is configured to provide shelter and infrastructure to support various electronic equipment used by occupants of the command post.

Abstract: An automobile theater system including a display screen adapted for use with a single automobile. A movable canopy provides a viewing chamber extending between the screen and the automobile. The theater system may be fixed in a stationary position or supported on a mobile platform.

Abstract: A shield panel support, for providing a vertical side edge support for a shield panel, comprises a transparent shield panel support pillar.

Abstract: A modular command post system comprised of removable interconnecting truss elements is provided. The modular command post system is configured to provide shelter and infrastructure to support various electronic equipment used by occupants of the command post.

Abstract: A grandstand seating arrangement having seating level members arranged in sequentially elevated relation to one another. A rigid frame that couples and surrounds the seating members has a lower frame coupled to the lifting arrangements and an upper frame coupled rigidly to the lower frame. A lower stop is disposed on each stanchion support and arranged at a height corresponding to the height of the associated seating level member. Seating level member supports support the seating level members, each of which is coupled to, and displaceable along, a respective stanchion support. The seating level member supports are supported by lower stops when the lifting arrangements are in the lower most position. When the lifting arrangements raise the rigid frame, the seating level member supports and the seating levels thereon are sequentially raised from the respective lower stops.

Abstract: A telescopic seating riser assembly capable of being configured into a variety of seating riser systems. The assembly has a plurality risers having vertically spaced substantially horizontal portions with the risers being movable between an extended position for use and a retracted position for storage. The assembly is further constructed to support deck bridging panels between spaced apart pairs of assemblies, and to utilize a method of supporting at least one deck bridging panel on a pair of spaced apart telescopic seating riser assemblies in an extended position for use and in a retracted position for storage of the assemblies.

Abstract: A building structure that consists of several individual theaters each of which has three distinct levels. There is a balcony level for first class patrons with separate entrance and exit areas. There is a lower viewing level for regular class patrons. The projection level is for motion picture projection equipment and is located between the upper and the lower viewing levels. This gives all patrons of the theater an optimal look and feel for the reality of the motion picture shown on the projection screen. Additionally multiple audio speakers are located throughout the theater empirically so as to eliminate sound dead spots.

Abstract: The invention relates to a stage, comprising elements, which may be assembled and disassembled from individual pieces, as part of a sub-structure with telescopic pieces (14, 15) and bars (11, 12, 13) fixed thereto, at various angles to the horizontal, to which may be fixed stepped elements for the attachment of superstructure pieces such a seats and railings. Said bars (11, 12, 13), may be pivoted about a pivot point (23, 24, 25), in the region of a first end (16, 17, 18) of a bar (11, 12, 13), in a manner independent of the angle to the horizontal. Each individual bar (11, 12, 13) comprises a first attachment point for stepped elements and the pivot point (23, 24, 25) of a bar (11, 12, 13) is either congruent with the first attachment point (26) or it is immediately adjacent to the pivot point (23, 24, 25).

Abstract: An erectable platform includes at least one bay, the bay having; at least one deck assembly, the deck assembly having a plurality of threaded couplers. The platform further includes support structure having at least two spaced apart main beams and at least two intermediate beams, each of said main beams underlying each of the at least one deck assemblies in a supporting disposition, each of said main beams presenting a first elongate, upward directed threaded receiver, the threaded receiver having two spaced apart rails defining a slot between the two rails, and each of said intermediate beams extending between two of the at least two main beams and being operably removably coupled thereto, and a plurality of depending columns operably removably coupled to the support structure in a supporting disposition.

Abstract: An arrangement for a grandstand having a series of sections, each section having a pair of sloping joists each provided with a number of vertical seating beam pillars and a number of walkways between the joists. Fastening and securing devices are provided at an upper part of each seating beam pillar. The fastening devices are provided with first locking devices capable of receiving second locking devices provided at the ends of seating beams intended to be mounted between two opposite seating beam pillars on the joists. One of the locking means has a resilient element. The first locking device is provided with a female member and the second locking device is provided with a male member. The resilient element allows connection of the male and female members with one another to lock the members in their connected positions. The resilient element has at least one tongue provided in connection with one of the members.

Abstract: An ice skating arena having at least a first ice rink having a first side wall of a first wall length and a second ice rink having a second side wall of a second wall length; the first side wall being parallel to the second side wall at an inter-rink distance therefrom; the first side wall comprising a first protective spectator viewing window; the second side wall comprising a second protective spectator viewing window, a ceiling extending the inter-rink distance from the first wall and the second wall along at least a portion of the first and second walls; a floor extending the inter-rink distance from the first wall and the second wall along at least a portion of the first and second walls; wherein the first side wall, the second side wall, the ceiling and the floor define therebetween a chamber comprising a climate controlled spectator viewing space. The area provides enhanced spectator comfort in a maximum unencumbered viewing manner and reduced capital cost expenditures.

Abstract: The invention relates to a transportable podium (1) with step elements (2) which in an operating position of the podium (1) have different heights above a floor (6). To facilitate the assembly and disassembly of a mobile podium (1) the invention provides for the step elements (2) to be configured such that they can be extended telescopically and to be arranged in a substantially cuboidal support frame (5).

Abstract: A system for operating a retractable roof having at least two moveable roof sections, the system comprising: a first support having a first pulley; a second support positioned opposite to and across from the first support means and having a second pulley; a tie member which passes around the first and second pulleys to form an elongate loop having a crossover point between the supports; wherein the first roof section is supported, in use, by the tie member between the first support and the crossover point and the second roof section is supported, in use, by the tie member between the crossover point and the second support such that, in use, the roof sections move in opposite directions when the tie member is moved.

Abstract: The present invention is directed to a multi-purpose arena that can be used for sport and non-sport type of events. The size of the arena can be varied to suit the particular type of entertainment present in the arena. The acoustics can also be varied or tuned to maximize the performance in the arena. The seating in the arena is disposed to provide excellent viewing of the entertainment being performed in the arena. And, the arena can accommodate the staging requirements for almost any use that is developed for the arena.

Abstract: A telescopic seating riser assembly capable of being configured into a variety of seating riser systems. The assembly has a plurality risers having vertically spaced substantially horizontal portions with the risers being movable between an extended position for use and a retracted position for storage. The assembly is further constructed to support deck bridging panels between spaced apart pairs of assemblies, and to utilize a method of supporting at least one deck bridging panel on a pair of spaced apart telescopic seating riser assemblies in an extended position for use and in a retracted position for storage of the assemblies.

Abstract: The seating section of a seating system is variable in slope between high riser and low riser positions forward ends of the pivotable treads forming a deck surface overlap confronting ends of adjacent treads, and lever arms maintain the treads substantially level irrespective of inclination of the underlying support beams. The arms are pivotable between angular and upright positions and extend between each of the treads and the beams. The forward ends of the treads are supported on support plates mounted on the support beams in a low riser height position of the seating section, and the lever arms support the forward ends of the treads on the support plates in a high riser position of the seating section.

Abstract: Seating tiers are used in a stadium to position rows of spectators at progressively higher levels, the tiers having a reverse slope such that each row is closer to a playing field than the next lower row, thereby providing spectators with an excellent view of action on the field. Walkways extend along the fronts of the seats and windows are adjacent the walkways to allow viewing of the field while protecting spectators. Cross-beams support the rows of seats and provide the walkways and are supported between stairway units that are part of a supporting frame structure.

Abstract: A convertible stadium includes an exhibition area, a seating area and an outer sidewall in which is defined in large opening, preferably located so as to provide favorable outdoor views to the occupants of the stadium. A movable wall member is advantageously position so as to be able to open or close the large opening. When the movable wall member is in a first, retracted position spectators will be provided with a view of the outdoors and a great deal of outdoor air and sunlight. When outdoor conditions are unfavorable for an intended event within the stadium, however, the movable wall member may be repositioned in order to partially or fully close the opening. Such unfavorable conditions may include undesirable sun position, an undesirable amount of wind or humidity; or unfavorable temperatures.

Abstract: A convertible public exhibition facility includes a stadium having an exhibition area and a seating area that is situated about the exhibition area for permitting spectators to view activities taking place in the exhibition area. The exhibition facility further includes a movable natural grass activity platform that has a surface area of natural grass that is at least 10,000 square feet and that is constructed so as to have a characteristic frequency of at least 6 Hz. Situated within the natural grass activity platform is a transport mechanism that is constructed and arranged so as to be able to move the natural grass activity platform as a complete unit from a location that is outside of the stadium to a location that is within the exhibition area. Preferably, the location that is outside of the stadium is an outdoor location that provides optimal conditions for the growth of natural grass.

Abstract: The proposed system comprises an auditorium, lighting facilities and a stage appearing as a container. The interior space of the container holds a liquid medium adapted for playing a theatrical performance therein, and a side transparent wall of the container serves as a stage mirror. Visual perception of each spectator is directed deep in the liquid medium through the stage mirror. The proposed stage comprises a container wherein the liquid medium is held. At least one side wall is transparent. The proposed method consists in that the stage appears as a container wherein a liquid medium is held suitable for human vital functions; at least one container wall is optically transparent, the surface of the liquid medium is isolated from the audience perception which is directed through the optically transparent wall deep in the container, and a theatrical performance is played in the liquid medium by at least one player.

Abstract: An edifice such as a sports stadium is adapted for open use during good weather as well as for covered use during poor weather by having at least one movable roof member. Each movable roof member includes a transport mechanism that is constructed and arranged to permit the roof member to move in a predetermined path with respect to the underlying structure of the edifice. The transport mechanism includes structure for supporting both ends of the roof member, which bridges an otherwise open area of the edifice. In order to permit some flexure and movement of the roof member with respect to the underlying edifice, as will inevitably occur as a result of natural forces such as winds, orientation structure is provided for maintaining the transport mechanism in a predetermined orientation while simultaneously permitting a limited amount of movement of the roof member in a direction that is nonparallel to the predetermined path of movement.

Abstract: A portable stage having at least a transport configuration and a deployed configuration is disclosed. The portable stage includes a chassis having wheels rotatably attached thereto and a main floor panel attached to the chassis. First and second deployable floor panels are pivotally attached to the main floor panel, and a deployable canopy is attached to the chassis. The deployable canopy is stored between the first and second floor panels when the portable stage is in its transport configuration. When the stage is deployed, the main floor panel, first floor panel and second floor panel form a main stage, and the canopy is large enough to cover the main stage.

Abstract: A substructure for a sports field of the type which can be shifted on glide pads or rollers on a track of a foundation and in which the frame supporting the sports field can be lifted by pairs of hydraulic cylinders to facilitate inspection and maintenance of the structure beneath the frame. A track bridging the inspection and maintenance space can have a wedge-shaped section covering an opening for this space and hydraulically displaceable into and out of position.

Abstract: The present invention is a netting system (10) for use with bleachers and grandstands (11) to prevent children, persons, and debris from falling to the ground. A first end (12a) of a net (12) is operatively connected to a cable (18) proximate an attachment point (11a) proximate the top of the bleachers (11). Then, a second end (12b) of the net (12) is passed over the understructure (11c) of the bleachers (11) and then operatively connected to a cable (25) proximate an attachment point (11b) proximate the bottom of the bleachers (11).

Abstract: An event construction comprises a public area, such as a grandstand, and a pitch for performing activities, for example sporting activities like football or baseball. The pitch is accommodated on a floor which by sliding elements is set up in such a way that it can be moved in relation to the public area. The sliding elements comprise at least one elongated track which is set up underneath the floor and is connected to the base or to the floor, and also supporting elements which are connected to the floor and can be slid in relation to the track, or supporting elements connected to the base, over which supporting elements the elongated track can be slid. Each track consists of mortar material.

Abstract: A stadium that is adapted for open use during good weather as well as for covered use during poor weather includes a foundation and a pair of movable end roof members that are movable between first, retracted positions and second, operational positions for covering first and second end areas, respectively, of the stadium. The stadium also includes a center roof member that is movable between a retracted position and an operational position for covering a center area of the stadium. All of the roof members are supported for movement between the retracted positions and the operational positions by a guide and support assembly that includes at least one rail member that is secured to the foundation and a plurality of independently suspended follower assemblies that are mounted to the respective roof member.

Abstract: A sports field, in particular for team sports such as football, has a playing field (20) which consists of a overing made of grass, granulates or other natural and/or artificial materials, placed on an infrastructure (21), in particular made of earth and/or gravel. Also disclosed is a process for horizontally displacing the sports field (20). To allow such a sports field to be horizontally displaced, the sports field is arranged on a preferably trough-shaped supporting frame (22) substantially made of concrete and/or steel parts, and which can be displaced on sliding pads supported on fixed sliding tracks (23).

Abstract: A sports stadium or building complex is covered by a huge fiberglass fabric dome that is supported by an inflatable dual-membrane bladder on a hollow compression ring with a diameter of 800 to 1200 feet. A central vertical spreader having upper and lower tension rings connected to the membranes of said bladder is supported from above or below by separate suspension cables in a position above the compression ring. Containment cables limit the expansion of and shape said bladder to provide a closed pressurized air space of narrow lenticular cross section and can include 40 or more radial ceiling cables and the same number of radial hold-down cables of the same length.

Abstract: Variable floor height tiered stands installed in a gymnasium, auditorium, indoor or outdoor athletic field or the like, including tiered floor members of which displacement in the fore-and-after direction and variation in depth are minimized when their inclination is changed, thereby to maintain constant the planar projected space of the stands in the architectural plan and to eliminate the risk of interference between the stands and any stationary structure in changing the inclination.

Abstract: A multifunctional building for providing accomodation to events, said building comprising a sports field (1) for an outdoor sport, whereby at least part of the sports field is provided in a container (4) which can be moved in vertical direction, in such a manner that in raised condition said container forms the roof of a space which can be utilized for indoor activities. The sports field may be a grass field which comprises sports facilities fixedly provided thereon. Stands (6) may be present outside the sports field, which stands can be moved to a position under the container when the container occupies a raised position. Roofed-in stands may furthermore be present, the roof of said stands abutting the container when said container occupies a raised position.

Abstract: A sports/recreation facility is provided with seating bank around a playing area (2), and a grass playing surface (12) which is withdrawable from the playing area. The playing area is defined within one end of a shallow dock (16), the dock extending over the playing area and also extending sufficiently outside the playing area in one direction to define an area outside the playing area and seating banks having dimensions at least equal to the playing area. A shallow barge (14) is floatable within the dock and supports the playing surface for movement within the dock between the playing area and the outside area. The water (18) for introduction into the dock is stored within the barge.

Abstract: A theater has a pair of perpendicular front walls and a pair of perpendicular rear walls, with each of the front walls parallel to one of the rear walls. A screen wall tuncates the corner between the front walls and is bisected at its center by a diagonal which bisects the space delimited by the front walls and rear walls. A pod of four theaters is arranged so that their truncated rear comers converge in a common area, and a projection booth is built above the common area to house the projectors for all four theaters.

Abstract: A simulated time ship dining and entertainment arrangement includes a building structure shaped like a dome and having outer side walls hingedly connected to a roof, inner side walls spaced from the outer side walls and forming display chambers therebetween, a ceiling supported by a simulated engine which is a transparent column resting upon a floor and supporting a dining table; multiple seating members disposed about upon the floor; multiple overhead display modules suspended from the ceiling and floor display modules both of which having image/sound producing equipment, lighting members and memorabilia disposed therein for simulating travel through various time periods; feet members and wheels for supporting and moving the building structure; and communications system for operating the image/sound producing equipment and for communicating to the host and for selecting the time period desired for a unique dining and entertainment arrangement.

Abstract: A roof structure for enclosures for swimming pools, spas, or patios and the like includes a plurality of laterally spaced angled roof beams each having a plurality of vertically spaced tracks on facing sides of adjacent beams for sliding receipt of one roof panel in each opposed set of tracks. The trailing ends of each higher panel is releasably latched to the leading end of each succeeding lower panel within their respective tracks, whereby the succeeding lower panels can be successively used to push or pull the preceding higher panels by hand along their respective tracks during assembly and removal of the panels from the roof structure.

Abstract: A recreational facility with multiple rinks and connecting corridors. Moveable partitions allow segregation of rinks and corridors. Segregated rinks and corridors are usable simultaneously for a variety of recreational and competitive activities.

Abstract: The acoustic tower of the present invention is a portable, acoustic tower that has both a performance position and a storage position. In the storage position, a canopy panel lies substantially parallel proximate an upper panel, both of which are hingedly secured to a cross tube assembly that is supported by a lift tube. The upper panel lies substantially parallel to a lower panel that is fixedly secured to a lower panel assembly having side supports and a center shaft which substantially contains the lift tube. To raise the acoustic tower to the performance position, the canopy panel is raised to one of a plurality of preset angles and maintained in position through use of ratchet and pawl assemblies of the cross tube assembly. With the canopy panel at the desired angle, the upper panel and canopy panel are raised vertically by telescopically elevating the lift tube within the center shaft. The lift tube is elevated by virtue of a winch assembly that is connected to the lift tube by a length of webbing.

Abstract: A stadium that is adapted for open use during good weather as well as for covered use during poor weather includes a foundation and a pair of movable end roof members that are movable between first, retracted positions and second, operational positions for covering first and second end areas, respectively, of the stadium. The stadium also includes a center roof member that is movable between a retracted position and an operational position for covering a center area of the stadium. All of the roof members are supported for movement between the retracted positions and the operational positions by a guide and support assembly that includes at least one rail member that is secured to the foundation and a plurality of independently suspended follower assemblies that are mounted to the respective roof member.

Abstract: A convertible roof (20) moves between extended and retracted positions for selectively covering an area, or exposing the area to ambient weather conditions. The roof (20) includes a first panel (26) having a plurality of inflatable tubes (28). One end of each tube connects to one side of the base of the roof and the other end connects to the other side of the roof's base. An air compressor (42) inflates the tubes sequentially via valves (40) and air duct anchor posts (30) or (112) for causing the first panel to move by inflation air pressure. The inflation air pressure causes the first panel to move from a position extending along one end of the base when the tubes are evacuated, to a second position above the base when the tubes inflate for covering the base. The roof will usually, but not necessarily, include a second panel (26) substantially identical to the first panel. The second panel connects to the end of the base of the roof opposite the end the first panel connects to.

Abstract: An electrically operated multiple folding stage system which enables a number of linked stage systems to move sequentially from a vertical to horizontal position (unfolding), or from a horizontal to a vertical position (folding-up), as a unit in a single smooth operation.

Abstract: The seating arrangement of the present invention comprises a series of hingedly connected rigid platforms with a series of folding seats affixed to selected platforms. Beneath each series of folding seats are a series of hingedly connected folding panels connected to front and rear support frames. When collapsing the seating arrangement for storage, the seats are folded to their closed position and the folding panels fold inwardly, pulling the front and rear frames towards each other. The folding panels may be simultaneously folded by utilizing a member connecting one or more of these folding panels. Additionally, means may be provided for facilitating the collapsing of the seating arrangement from its use position to its compact, folded configuration.

Abstract: A system for controlling acoustics and emissivity in an arena having a ceiling includes a pair of rollers mounted adjacent the ceiling and spaced apart over at least a portion thereof. A plurality of acoustics and emissivity controlling panels connected together to form a continuous sheet are mounted between the rollers for movement across the ceiling when the rollers are rotated. The panels include one having a high emissivity surface of at least 90%, one having a low emissivity surface of 7% or less and one having an acoustical surface with sound absorbing characteristics.

Abstract: A seating system having a plurality of seating sections in which the slope of the understructure thereof can be varied, the treads of the seating sections being pivotable to permit the riser height to vary so as to enable a single seating system to provide varying slopes and sight lines depending on the stadium/arena configuration. The treads are pivotable between low riser and high riser positions by the provision of lever arms movable between angular and upright positions and extending between the treads and the beams for supporting the treads in the high riser position on the upper surface of understructure beams. In the low riser position ends of the treads opposite their pivotal ends are supported on an adjacent tread.

Abstract: A retractable covering for buildings (20) or spaces (22) comprising a plurality of flexible retractable panels (32) and attached retractable cables (36) stored at the perimeter of the space and capable of being deployed in a helical pattern converging near a predetermined point above the space.

Abstract: An arena includes a performance area and an audience area having a ceiling extending thereover. A plurality of first insulating elements having high acoustic characteristics and low emissivity are mounted in a portion of the ceiling extending over the performance area and a plurality of second insulating elements having high acoustical characteristics and high emissivity are mounted in a portion of the ceiling extending over the audience area.

Abstract: A retractable dome stadium having a plurality of generally lune-shaped panels mounted for movement between an open position in which they are stacked one above the other in a superimposed relationship and a closed position in which they are disposed in a generally side-by-side relationship. In the open position, the dome has a low and open view in one end thereof.

Abstract: A floor apparatus (1) comprises a support base (8) and a passage base (10), each being rotatable about axes (11, 12) of rotation respectively, the support base (8) having a seat surface (13) mounted with seats (7) and a first selective surface (14), the passage base (10) having a passage surface (16) and a second selective surface (15), and a rotating device (5) for rotating the support base (8) and the passage base (10) about the axes (11, 12) of rotation respectively. The first selective surface (14) or the second selective surface (15) is selected and used depending upon events, thereby improving versatility of a floor surface in accordance with the events.

Abstract: A theater includes an audience seating area, a stage and at least three projection screens. Multiple film projectors simultaneously project a three dimensional film onto the three projection screens. Three dimensional film elements appear to move seamlessly from one projection screen to the next. In a live action show, actors, stage sets and show action equipment appear to interact with the three dimensional film. The filmed set blends with the stage sets to give dimension and a feeling of depth to the viewing audience. The audience cannot easily distinguish between the real elements and filmed elements thereby intensifying the theater experience.

Abstract: A modular structure is assembled through a multiplicity of modules aligned in a series of horizontal rows, with each successive row being higher than the preceding row by a given height. Each row is composed of series of adjacent modules of the same height in that row, the modules composed of four vertical posts with adjacent modules sharing the same two intermediate posts between them. In alternating rows, the vertical posts are strengthened by widthwise crossbeams extending from adjacent the top of one vertical post to adjacent the bottom the next vertical post for all widthwise pairs of vertical posts in the given row. Each vertical post is anchored to the ground by being welded to a base plate assembly which in turn in bolted or anchored into the ground or concrete floor. Each module supports a concrete formed bed.

Abstract: Provided are a method for moving a multipurpose field and an apparatus for the same wherein the multipurpose field can be caused to float above a basic floor plate under a fluid pressure and can be moved and placed in a desired position by delivery means. The moving apparatus comprises a nozzle provided over a basic floor plate common to a field region of a roofed stadium and an outdoor region for detecting existence of the multipurpose field and for jetting a fluid upward in response to a detection signal, and delivery means for alternately moving the multipurpose field between both the regions.