Abstract: An attachment for use on a ladder to provide a step or tool support having a frame which can be supported on a ladder, and a movable structure which is pivotally mounted on the frame for movement between a retracted and extended position to provide the step.

Abstract: An attachment for existing crutches includes a foldable mechanism having a knee supporting platform and which is shiftable from a horizontal use position, on the inside of a crutch, to a vertical stowed position. Provision is included for vertical adjustment of the platform whereby a user may easily select either mode of the device when transitioning from a walking to a standing, at-rest position. Alternate knee supporting platform structure is proposed, to accommodate the desires of the user.

Abstract: This modular constructional element (14), which is of the type comprising at least two uprights between which at least one crosspiece extends, is such that each end of the uprights is screw-threaded and adapted to cooperate with a fixing ring (18, 19) for fixing the element (14) to an adjacent means (15).

Abstract: An adjustable platform for a rung ladder has a footplate which provides sufficient surface area to enable full contact by the users feet. A footplate support system enables the footplate to accomodate a range of angles of inclination of the ladder relative to the horizontal. The footplate support system is releasably secured to two parallel guides running length wise of the ladder, either as part of extruded ladder stiles or secured to stiles of an existing ladder, and is adapted to slide up and down the guides to engage the footplate with the desired rung of the ladder. Clamp means is provided to locate the footplate in the desired position.

Abstract: A ladder accessory with an upwardly open receptacle is designed to rest on a rung of a ladder or step-ladder and its shape cooperates with one upright of the ladder prevent transverse movement of the accessory or rotation in either direction relative to the ladder.

Abstract: A portable step-forming device releasably attachable to a vertical wooden stud comprises a U-shaped gripping member for closely receiving a stud member, a step member attached to one prong of the U-shaped member and further having an enlarged end for retaining the user's foot on the step member, and a gripping means comprising a spring-loaded reciprocable member with a stud-engaging end for holding the step-forming device in position of the stud member.

Abstract: A paint pot carrier comprises a unitary moulded body defining a pot-receiving well (3). A hooking web (8) of the body enables the carrier to be hooked over a ladder rung (R), an inclined shoulder (14 or 15) bearing against an adjacent one of the ladder stiles (S). Two movable jaws (20,21) can be raised to clamp the rung from beneath against the web (8). To move the jaws, rack teeth (26) of the jaws are engaged by pinions (25) secured to a common drive shaft (27). Rack teeth of a drive bar (30) engage a toothed central portion (28) of the shaft (27), and manually operable means (34-39 or 48-60) enables the drive bar to be moved longitudinally to operate the jaws.

Abstract: A work tray for mounting on hollow rung ladders. The tray has a single shaft which goes through one rung of the ladder. Lock means are provided to keep the tray from rotating or from pulling out of the rung. Angular adjustment means are provided so that the tray may be kept level when the ladder is used at different angles.

Abstract: An exercising device for the simulation of climbing includes a pair of side support units, each of which comprises a front leg and a back leg pivotally connected at their upper ends. The front and back legs of each pair are interconnected by a support member. A step in the form of a horizontal support platform is selectively engaged with the side support units at one of a plurality of different elevations so that the user may simulate climbing by repeatedly stepping up and down from the platform.

Abstract: A combination bracket and adjustable ladder tray for holding the tools and materials of a tradesman in close proximity to his area of work while he is working on an extension ladder. The device of this invention includes a tray contoured to fit the most commonly used tools and materials of the tradesman, apparatus for securing these tools in said tray and a support bracket which on one side is adjustably secured to the base of said tray and on the other side has provision for secure attachment within the hollow rungs of an extension ladder. The tray is adjustable so that it can be always level relative to the ground or in any other angular position, regardless of the angle at which the ladder is placed against a structure.

Abstract: A service platform for a ladder has a ladder rung locking means that provides support for a frame member upon which a user stands. A scissor-like action is produced about a bearing wherein one lever arm is an extended arm attached to the frame and the other lever arm is a support lever connected directly to the other support lever by a support bar which rests upon the side rails of the ladder. The ladder rung is inserted into slots formed in the extended arms, the bearings, and in the support levers. Rotation of the frame causes the slots to become misaligned thereby locking the ladder rung therein. The service platform can be stored on the ladder without interfering with its use.

Abstract: A preferred tower of a lookout is triangular in cross section and tapers inwardly from the bottom to top. The tower has an upper and a lower section of about equal lengths, and the tower can be easily and quickly disassembled, and then the sections nested for easy transportation and storage. When the sections are nested, wheels that extended outward from a side near the bottom of the tower become wheels of a dolly to help transport the components of the tower and any load tied upon the nested sections. An extending platform as a stand or a footrest is removable from near the top of the tower and readily stowed within the nested sections.

Abstract: A pair of separate stackable steps is described, one for supporting each foot of the user. Each step includes a sheet metal body that comprises a bumper engaging fulcrum section inclined upwardly proceeding towards its free edge and having a bumper engaging downwardly turned lip defining a hook at its free end adapted to slide over and engage the bumper, a downwardly extending center section and a horizontally extending platform section. The steps can be stacked closely together for storage.

Abstract: Stepladders having flat tread steps have a step extender fixed along the rear edge of the first step from the top of the ladder to increase the width of the step bearing surface and improve ladder safety. The extender comprises a flat tread portion and a depending brace portion. A minor section of a longitudinal edge of the extender overlaps the upper, rear edge of the ladder step which it serves to widen.

Abstract: A scaffold device has two leg members having at their upper end spacers to space the legs away from a wall or other structure. Each leg has a support assembly for a platform upon which a worker may stand. The support assemblies comprise a pair of sleeves which can be adjustably secured to the legs, and a pair of rods each having one end pivotally secured relative to their corresponding sleeves, with the other rod ends having lock holes to permit the rod ends to be secured at a position to support the platform level with the ground for safe operation. A cross rail connects each of the legs and acts to maintain the relative position of the legs and also acts as a safety device to prevent workers from falling off the scaffold.

Abstract: A landing for a ladder or the like includes a support bracket adapted to be secured to the upper end of a ladder by a tie bar passing through a rung thereof. The bracket includes a bar rigidly disposed in the channel cavity of the ladder rail, and a support beam extending laterally from the bar outwardly from the side of the ladder. A plate is disposed horizontally with one edge adapted to rest on a roof or sill surface of the structure on which the ladder is leaning, with a medial portion of the plate resting on the support beam. The plate provides a safe egress from the top of the ladder to the roof or sill.