Abstract: An MLP assembly and method for supporting and providing access to railroad signals. The MLP assembly may comprise a mast, one or more platform assemblies attached to the mast, and one or more ladders attachable to the mast and/or the platform assemblies. The MLP assembly may also comprise F-brackets and ladder supports for supporting the ladders relative to the mast. The MLP assembly may be placed in a folded configuration for transport thereof or an unfolded configuration for installation. The ladder supports and/or elements of the platform assemblies may rotate toward the mast into the folded configuration and may rotate away from the mast into the unfolded configuration. The MLP assembly may also comprise a plurality of stacking brackets configured for stacking a plurality of MLP assemblies on top of each other for transport to an installation site.

Abstract: Tree stands are disclosed for providing an elevated standing location. The tree stand can include a support post, a seat rotatably coupled to the first end of the support post, and a platform rotatably coupled to the second end of the support post. The platform can rotate from a transport configuration to an operable configuration. The platform in the operable configuration is approximately perpendicular to the support post. The platform has a tree contact point positioned above a plane of the platform when the platform is in the horizontal position. The platform can comprise a plurality of hexagons with groups of three hexagons intersecting at a point and forming a honeycomb pattern defining a top standing surface on which a hunter can stand. The contact point is configured to create an over-center locking action. The tree stand can also include a stackable ladder coupled to the platform.

Abstract: A device is provided for aiding a user in transporting a load up and down a ladder assembly. The ladder assembly includes a fly ladder having slidably connected to a base ladder. Each ladder includes first and second spaced rails interconnected by a plurality of spaced rungs. The device has a frame assembly including a first subframe positionable adjacent the first rail of the base ladder and a second subframe positionable adjacent the second rail of the base ladder. First and second base ladder guides are operatively connected to each subframe and define tracks for receiving the rails of the base ladder therebetween. First and second fly ladder guides are operatively connected to the subframes and defines tracks for receiving the rails of the fly ladder therebetween.

Abstract: An observation stand. In one non-limiting embodiment the observation stand includes a support base, a seat, a platform, and a safety-framework. The support base defines opposite top and bottom ends and first, second and third legs configured in a tripod arrangement. The legs each define an upper end and a bottom end. The seat is attached to, and hence supported by, the upper end of each leg. The platform comprises first, second and third slots. The slots are arranged to respectively accommodate the upper ends of the first, second and third legs. The platform is located proximate to the top end of the support base and below the seat. The platform defines a perimeter. The safety-framework is attached to the perimeter, and helps prevent a user from falling off the platform. An optional ground spike can be fitted to one or more of the legs.

Abstract: A U-shaped bracket having an adjustable width is telescopically inserted around a side rail of the ladder by pushing the bracket onto the side rail with the open end of the bracket receiving the side rail as the bracket is pushed onto the side rail. Side walls of the bracket have extended wall portions that stick out past the rear of the side rail. A paint can holder can be telescopically inserted through a set of aligned holes in the extended wall portions to couple the paint can holder to the side rail of the ladder. A paint roller pan holder can also be telescopically inserted through a set of aligned holes in the extended wall portion to couple the paint roller pan holder to the side rail of the ladder. The paint roller pan holder includes a pivot connection to allow the portion of the holder that supports a paint roller pan to be leveled relative to the horizontal.

Abstract: An apparatus for providing safe access to a top of a mobile container. The mobile container has a top, a longitudinal dimension, and a plurality of hatches arrayed along the longitudinal dimension on the top. The apparatus has a raised platform and an extended cage attached to the raised platform wherein the extended cage extends along the longitudinal dimension. A tracking gate, attached to the extended cage, is adapted to vary an effective interior size of the extended cage.

Abstract: The present invention relates to a lattice support structure which includes interconnected lattice bars, wherein the lattice bars are connected with each other such that the lattice support structure can be folded in and out, wherein evacuation means for evacuating persons are arranged on or in the lattice support structure.

Abstract: A ladder apparatus adapted for a scaffold is disclosed. The ladder apparatus includes a ladder, two top connection components disposed at a top of the ladder, two bottom connection components disposed at a bottom of the ladder, and two platform assemblies connecting the ladder. The ladder includes two lateral rails and a plurality of step shelves arranged between the rails. Each platform assembly has a platform, two fasteners connected respectively to opposite ends of an external side of the platform, two straddlers connected respectively to opposite ends of an internal side of the platform, and two retainers protruding respectively from two lateral sides of the platform. The ladder connects the internal sides of the two platform assemblies via the top and bottom connection components respectively. The platform assemblies stride over and are against two lateral stringers of the scaffold via the straddlers and join the scaffold via the fasteners.

Abstract: An architecture is presented that consolidates scaffold stair units to one unit with a multi-fit hook device. The multi-fit hook device for scaffolding comprises a bracket with an opening at one end. The bracket further comprises slotted holes formed in the bracket, outside the opening to aid in securing the multi-fit hook device to an access way. Hardware, such as screws or bolts, is inserted through the slotted holes to secure the bracket to the access way. The opening at one end of the bracket is formed to accept scaffold tubing indeterminate of size, and can be used on any scaffold system. Thus, the opening is not scaffold tube style specific and does not require a separate unit for each scaffold system. Instead, the multi-fit hook device permits the same access way to be used on multiple scaffold systems.

Abstract: A tactical footbridge comprises two or more bridge segments and one or more pivotal connection assemblies. The one or more pivotal connection assemblies engage two of the at two or more bridge segments. Each pivotal connection assembly comprises a first member, a second member, a first axial connector, and a second axial connector. The first member engages a first of the two bridge segments. The first member has a pivot hole and a bridge hole. The second member engages a second of the two bridge segments. The second member also has a pivot hole and a bridge hole. The first axial connector selectively extends through the pivot holes of the first and second members to pivotally connect the two bridge segments such that the connected bridge segments selectively pivot between a collapsed position in which the connected bridge segments are proximal to one another, and a bridge position in which the connected bridge segments are in an expanded angularly-disposed relationship with one another.

Abstract: A work deck configured for use within an elevator hoistway is provided. The work deck includes a platform having a plurality of planks. A plurality of telescoping assemblies is pivotally connected to one end of the platform, the telescoping assemblies each configured to span the elevator hoistway such that a first end of the telescoping assemblies seats against a building floor and a second end of the telescoping assemblies seats against a hoistway structure. A ladder has a first end and a second end. The first end of the ladder is pivotally connected to the platform and the second end is pivotally connected to the first end of the telescoping assemblies. The platform is configured to provide a work deck for personnel for use within the elevator hoistway. The work deck can be folded into a substantially flat package for ease of shipment.

Abstract: A tree stand is provided, the tree stand including a platform support, first and second clamps rotatably attached to the platform support, and a platform attached to an upper portion of the platform support. Also provided is a climbing portion adapted to allow a user to enter and leave the tree stand. In some aspects of the invention, the various components of the tree stand can be easily assembled and disassembled for transporting and setting up the tree stand. The first and second clamps include openings for fasteners, which are used to secure the clamps to a tree.

Abstract: The present disclosure relates to platforms for ladders. More particularly, the present disclosure relates to a platform configured to be coupled to rungs of the ladder.

Abstract: This maintenance trolley (17) for the air intake (9) of the nacelle of an aircraft turbojet engine is notable in that it comprises a base (19) and a platform (23) cantilever-mounted on this base (19) and designed to enter said air intake (9) without contact therewith.

Abstract: The present invention relates to a tree stand for obtaining an elevated view of the landscape that may include: a seat, where said seat may be rotated about a 360-degree range motion; a seat platform, where said seat platform supports the seat of the tree stand; side platforms, where the side platforms are adjoined to the seat platform to form the tree stand; a mechanism to connect the seat platform to the side platforms; a mechanism to secure and abut the tree stand to a tree trunk; and a ladder, where said ladder provides a mechanism to ascend into the tree stand. In one particular embodiment, three connecting rods may connect the seat platform to the side platforms.

Abstract: A reusable stair system may allow for access to a platform, for example, at the top of a ramp so that able people are not required to travel the entire distance of the ramp to reach the main platform. The reusable stair system can be easily assembled and disassembled, having a number of legs that are attached to adjacent stairs. Legs may have two attachment regions for two stairs on either side of each leg and one of the stairs being located at a greater height than the other stair. The desired height of the main platform at the top of the stair system will determine the number of legs and corresponding stairs that will be used.

Abstract: A mobile mount for attachment of a fall arrest system is provided for example for aircraft and includes a base carried on ground wheels and a support which is adjustable in height upstanding from the base and an arm cantilevered over the base. At least one receptacle is mounted on the arm of the support at a position located over the base for attachment to a personal fall arrest system including a harness for one or more persons, with the receptacle, base and support being designed and arranged to receive a loading from the personal fall arrest system sufficient to accommodate a fall of the person from the elevated structure.

Abstract: A method for erecting a platform is presented. The method includes providing a selectively liftable platform mechanism wherein the platform mechanism generally includes a platform, a trailer, at least one support bar, and a ladder. The at least one support bar and the ladder provide structural support for the platform when the platform is raised above the trailer. The at least one support bar has a proximal end pivotally connected to a first end of the trailer, and a distal end pivotally connected to the platform. The ladder has a distal end pivotally connected to the platform, and a proximal end pivotally and slidably connected to the trailer. The proximal end of the ladder is movable along a longitudinal axis of the trailer in order to level the platform in its raised position. The platform mechanism also includes a cable operatively connected to the platform.

Abstract: This patent pertains to a platform device upon which a person, equipment or both are supported above a ground surface in which the build-up of debris and moisture is impeded. The sanitary platform system is comprised of two or more main rails having square cross-sections that are on diamond and are side-by-side with a space between the main rails; one or more standard web brackets comprised of a plate, two or more tabs and a perimeter defining an opening for receiving a main rail on diamond which are mounted in spaced-apart relation along the length of each of the main rails; two or more vertical legs supporting each of the main rails above the ground surface, and one or more deck plates welded to the tabs of the standard web bracket.

Abstract: A wind turbine tower base access ladder includes a ladder top having a first lip engaging structure disposed at a first end of the ladder top for engaging at least a portion of an outer lip of an opening of a wind turbine tower base when the ladder top is disposed to at least partially extend in the opening. The access ladder also includes a first ladder section attached at the first end of the ladder top and a second ladder section attached at a second end. The first ladder section and second ladder section extend downwardly from the ladder top on opposite sides of the wind turbine tower base when the ladder top is at least partially disposed in the opening effective for allowing a user to move between an exterior of the wind turbine tower base and interior of the wind turbine tower base via the opening.

Abstract: An A-frame ladder has a first ladder and a second ladder. The first ladder has two rails interconnected by a plurality of steps and a first set of grooves that receive a tambour device that inhibits a person from using the first ladder's steps. The second ladder has two rails interconnected by a plurality of steps and a second set of grooves, interconnected to the first set of grooves, that receive the tambour device so the first ladder and the second ladder can be used and inhibits a person from entering the area between the first ladder and the second ladder through the second ladder's steps.

Abstract: An embodiment of the present invention relates to a staircase device adapted to fit a bed of a truck, or other similar vehicle. The staircase provides a mechanism for facilitating the loading and unloading of items onto and off a bed of a truck. An embodiment of the present invention is directed to a vehicle staircase device comprising a first lower platform having a first length and a first width, the first lower platform having a hitch connector adapted to connect to a vehicle; a second platform having a second length and a second width, wherein the first lower platform and the second platform are substantially parallel; and a staircase structure connecting the first lower platform and the second platform.

Abstract: This patent pertains to a platform device upon which a person, equipment or both are supported above a ground surface in which the build-up of debris and moisture is impeded. The sanitary platform system is comprised of two or more main rails having square cross-sections that are on diamond and are side-by-side with a space between the main rails; one or more standard web brackets comprised of a plate, two or more tabs and a perimeter defining an opening for receiving a main rail on diamond which are mounted in spaced-apart relation along the length of each of the main rails; two or more vertical legs supporting each of the main rails above the ground surface, and one or more deck plates welded to the tabs of the standard web bracket.

Abstract: The tree stand has a lower rectangular platform with an extended opening from the center to an outer edge of the platform for installation around a tree trunk. An upper platform provides a secure seating area. A plurality of support members are pivotally attached to the lower surface of the lower rectangular platform and have teeth on their lower end adapted for securing into the bark of a tree. The tree stand is further secured to the tree by a plurality of angle irons that are mounted at the center of the upper and lower platforms. Adjustable tension straps attach to the angle iron and tighten the platforms to the tree preventing vertical movement of the tree stand. The support members on the lower platform have a hook on the lower end opposite the teeth, and an adjustable tension strap that engages the hooks further tightens the support members against the tree.

Abstract: The present disclosure relates to tree stands which grasp upright columnar members for example, trees, poles, which are arranged to facilitate climbing and adjusting the height of the tree stand to a desired level and angle. When assembled as a cart, the invention consists of an upper climbing member or frame, lower climbing member or frame, a mechanical-interlocking system, an axle, wheels and a wheel attachment device. The two-climbing-member tree stand may be of a manually adjusting type or of a self-adjusting type which permit adjustment of the spacing of the grasping members so as to effect adjustment of the angle of each tree climber relative to the upright columnar member.

Abstract: A selectively liftable platform mechanism is first provided. The platform mechanism generally includes a trailer, a platform, and a support structure on the trailer for pivotally raising the platform from a lowered position to an elevated position. The support structure includes a ladder having a distal end pivotally connected to the platform and a proximal end pivotally and slidably connected to the trailer. The proximal end of the ladder is movable along the longitudinal axis of the trailer in order to level and stabilize the platform into a viewing position. A method for erecting a shooting house is also provided. The shooting house is positioned onto the liftable platform mechanism.

Abstract: A scaffold access ladder bracket assembly is shown and described. The assembly can be used to attach an access ladder having side rails to a scaffold. The assembly includes a bracket body that includes bent portion terminating in hooked ends. The hooked ends wedge the bracket body against the side rails. The assembly also can include ramped portions connected to the bent portion and spaced apart from the hooked ends to create ladder receiving channels for receiving the ladder side rails. And the assembly includes a locking mechanism connected to the bracket body for lockably engaging the bracket body to ladder side rails. Also disclosed is a method of installing a scaffold access ladder on a scaffold using the assembly. The assembly provides a bracket assembly that requires no tools to install and/or dismantle in at least some instances (e.g., when the assembly is connected to a ladder), and thus, is easy to use and handle.

Abstract: A sign with a positionable ladder. The ladder is movable to a plurality of positions in front of a first side sign portion and is movable about a pivot to a position not in front of the first side sign portion to a position behind the first side sign portion. The ladder is mounted to a carriage that moves along the top of the sign on a carriage track, and the ladder pivots about a substantially vertical axis with respect to the carriage. The ladder has inwardly-disposed wheels extending from a lower portion that rest upon a non-horizontal track of the sign.

Abstract: A deer stand is pivotally mountable on a back rack of an ATV. When erected to an upright position the deer stand is stabilized by the mass of the ATV, preventing collapse of the stand due to wind or other such forces. When being transported to the location, the stand is pivoted onto its side, with the front portion being securable to a front rack of the ATV.

Abstract: A scaffold having a ladder assembly detachably connected to one end of a support frame of the scaffold, the ladder assembly being pivotally connected to one of the ends of the support frame, the ladder assembly being selectively rotatably moved between a first position and a second position; in the first position the ladder assembly is positioned adjacent one end of the frame of the scaffold and in the second position the ladder assembly is disposed substantially adjacent a side of the support platform for permitting easy access to the support platform.

Abstract: A step mounting apparatus includes a stepping portion, at least one mounting support extending from the stepping portion, and at least one contact member attached to the at least one mounting support. The at least one contact member is adjustable with respect to the stepping portion such that an angle between the at least one contact member and the stepping portion can be varied.

Abstract: A catwalk is provided for use in trenching operations that provides increased safety and improves efficiency. Methods are also provided that save time over the prior process of building multiple land bridges. Selected features include reduction in the number of ladders used increases worker safety, along with several other safety features such as catwalk railings, holding devices for ladders, etc. One catwalk is shown with a skid assembly to further increases efficiency by allowing the trench box to be towed with the catwalk in place.

Abstract: A platform ladder comprising two elongate ladder sections having feet at one end and an upper end, the upper end of each section being hinged to an upper rail, a platform pivotally secured to one ladder section below the upper end and adapted to interconnect with the other ladder section, and stays interconnecting each side of the ladder sections whereby when the ladder is in an operative position with the ladder sections assuming an erect A shaped profile with the platform extending between the ladder sections to define a standing platform, the ladder sections, upper rail and stays, define a four bar linkage.

Abstract: A device for providing three dimensional camouflage to a hunter's ladder stand having a seat, footrest, side rails and a plurality of rungs. The device has a hollow plastic tube with a split and holes through which a plurality of stalks of artificial vegetation are inserted. The split is in the form a groove or has notches so that when the tube is attached to a rail of a ladder stand, the tube does not interfere with the rungs.

Abstract: A portable chair is disclosed having a seat, a frame that supports the seat, a ladder that provides access to the seat; and a hollow tank that holds a liquid mass, connected to the frame. The frame includes first and second side supports each having a forward support and a rear support. Each of the forward and rear supports has an upper end and a lower end, and the seat is connected to the frame proximate the upper ends of the forward and rear supports. The frame also includes a lower frame that connects the forward supports to the rear supports near the lower ends of the forward and rear supports. The tank is connected to the lower frame to provide stability to the chair.

Abstract: A device (10) which assists a person (P) in working on the engine (E) of a vehicle (V) includes a base member (11) which rests on the ground and has a socket (17) extending upwardly therefrom. A post assembly (23) includes a stem portion (24) which is selectively positionable within the socket (17). The stem portion (24) is provided with a plurality of opposed spaced apertures (27), and a pin (28) is inserted through a selected of the opposed apertures (27) and through apertures in the socket (17) to adjust the height of the device (10). A step (29) is carried by the stem portion (24) at a selected height by a pin (31) received through the selected apertures (27) and through apertures in a flange (30) carried by the step (29).

Abstract: A collapsible scaffolding tower having four uprights arranged in two pairs, wherein each of the uprights is formed of three or more telescopically collapsible sections and rigid horizontal bars extend between the sections of the uprights in each pair to form two telescopically collapsible ladder structures, which rest directly on the ground when the tower is in use.

Abstract: A tower system adapted to be secured non-permanently to different sized cargo portions of a moving vehicle is disclosed. The system comprises (i) a tower structure including means to allow a user to sit on the tower; and (ii) a support member to which the tower structure is secured, the support member including front and rear channel members to which the tower is releasably secured, each channel member having two end portions, each end portion of the channel members being in contiguous relation to a device that is slidable with regard to the channel members and adapted to be secured to the channel members, each device extending from a member that is structured to be force-fit and secured against the cargo frame of the vehicle in a non-permanent manner so as to lock the support member to the cargo frame.

Abstract: An adjustable stair and platform system. The apparatus includes a set of stairs which is affixable to a platform at a first height or alternately at a second height. Both the platform unit and the stair unit include vertically adjustable legs above ground engaging feet. The stairs includes a stair rail frame which is releasably affixable to a side hand rail frame provided for the platform unit. The hand rail frame provided for the platform unit includes an end rail which is pivotally mounted to the side hand rail frame. The end rail frame is changeable to support a right hand or a left hand configuration of the side hand rail frame provided on the platform unit. The combination of vertical adjustability, and left and right hand adjustability, make the unit adaptable for various installation configurations, and avoids the need for multiple stair system units for portable buildings.

Abstract: A mobile worker platform providing access to the rotor area of a helicopter having outriggers spaced to straddle the helicopter landing gear.

Abstract: A molded plastic pool ladder of A-frame shape having first and second sides consisting of assembled frame channel rail structures with a ladder slidable between lower and higher positions in one of the frame channel rail structures and movable feet on the bottom of the frame channel rail structures and a platform connected to the frame channel rail structures by a button connection.

Abstract: A modular stair assembly includes a stair module and at least one of a transportation module, deck module, handrail module, extension deck module, and extension handrail module that can be interconnected in various configurations to suite a wide variety of different applications.

Abstract: A stability alignment frame useful for the erection of a observation or hunting stand includes a plurality of vertical posts. A horizontal framework interconnects adjacent posts and a leg is secured to an associated vertical post. Each leg extends downwardly and outwardly. A first stabilizing member interconnects non-adjacent, opposed legs, thereby providing a plurality of interconnected legs. Structure is provided for applying a force to the interconnected legs to change the spacing between the bases of a pair of the interconnected legs, thereby providing a wedging action between the stability alignment frame and an elevated vantage point. This provides a stable base for supporting the elevated vantage point.

Abstract: A modular stair assembly includes a stair module and at least one of a transportation module, deck module, handrail module, extension deck module, and extension handrail module that can be interconnected in various configurations to suite a wide variety of different applications.

Abstract: In a dock unit for maintenance of aircraft there is provided, in addition to an outer support which supportingly engages against a frame disposed parallel to the longitudinal axis of the aircraft in the vicinity of the end of said frame and is adjustable, a further support which is located further in and is likewise adjustable. The distance between the two supports is greater than the largest dimension of the wings of the aircraft to be maintained, measured in the longitudinal direction of the fuselage. One of the supports can therefore be temporarily retracted in order to move a wing past and below this support.

Abstract: A mobile passenger ramp for loading and unloading aircraft, the ramp comprising having upper and lower frame sections connected pivotally so that the ramp can be folded for storage or movement about the tarmac and unfolded at an obtuse angle to form a wide “footprint” to provide wind or jet blast stability. An arcuate surface bridges between the ramps of the two frames when unfolded. The compact ramp remains safely clear of a “No-Go” zone while still being sufficiently long to minimize the slope of the ramp for improved ease of use by passengers, either ambulatory or in wheelchairs. A steerable wheel at one end of the ramp enables rotation of one frame about the pivoting connection for folding and unfolding the frames. Fixed wheels on the upper frame and a castored wheel positioned near the pivot point on the lower frame provide stability and easy maneuverability of the folded ramp.

Abstract: Provided herein is a stand useful by hunters to observe or hunt game in remote locations. A hunting stand according to the invention is readily assembled and disassembled by virtue of connective means disclosed. A hunting stand according to the invention is readily portable to locations inaccessible to hunting stands of the prior art, and has greater structural stability over prior hunting stands.

Abstract: A mobile observation stand assembly includes a platform that may be in a lowered position for transport and an elevated position for use in a desired location. The assembly includes a base supported by a wheel and axle assembly, with an articulated anterior frame and an articulated posterior frame attached to the base. The posterior and anterior frames each include a basal frame and a principal frame that are jointed by a rollover lock joint that allows for pivotal movement. A leveraging cam is attached to the posterior frame, with the cam supporting the anterior frame during repositioning of the assembly.

Abstract: A stability alignment frame is provided herein which is useful for the erection of a observation or hunting stand. The stability alignment frame (referred to herein as STAF) includes a plurality of vertical posts. A horizontal framework interconnects adjacent posts and a leg is secured to an associated vertical post. Each leg extends downwardly and outwardly. A first stabilizing member interconnects non-adjacent, opposed legs, thereby providing a plurality of interconnected legs. First means is provided for applying a force to the interconnected legs to change the spacing between the bases of a pair of the interconnected legs, thereby providing a wedging action between the stability alignment frame and an elevated vantage point supported thereby. This provides a stable base for supporting the elevated vantage point.

Abstract: A portable utility stand for use by hunters, wildlife photographers, security personnel, etc. attaches removably to a small, light weight off road vehicle (golf cart, all terrain vehicle, etc.). The stand essentially comprises a lower portion which is immovably affixed to the vehicle, and an upper portion which is pivotally attached to the upper rear of the lower portion and which folds forwardly for storage atop the lower portion of the stand on the vehicle. The upper portion of the stand includes an observation seat which is pivotally mounted to an upper platform to provide an observer with a 360 degree field of view. The seat is positioned essentially over the center of gravity of the vehicle when the stand is erected, and a pair of lateral braces is provided for additional stability and safety. A folding safety guard is also provided to surround a person seated atop the stand.