Abstract: A safety platform attachment (10) for ladders is shown having an expanded treaded platform (24) and mirror image torque arms (12, 14) for attachment thereto. Torque arms (12, 14) each have upper and lower ladder rung receiving seats (34, 38; 36, 40) and a plurality of automatically self adjusting locks (42) which hold the safety platform attachment securely in place on the ladder and prevent accidental dislodgement.

Abstract: A platform accessary for a ladder, including connectors for readily and securely mounting on two adjacent rungs of the ladder, by engaging the upper rung from above and engaging the next lower rung from below, with adjustment means for tightening the connectors thereon. The platform is adaptable to all rung shapes and sizes, and all types of "lean-to" ladder or extension ladders, and for mounting against either an outside corner or an inside corner of two adjacent walls. Additionally, the platform is foldable into a compact, substantially flat unit for storage and for carrying.

Abstract: A ladder platform and utility frame means is formed by a foot plate supported by adjacent ladder rungs and an open frame mounted on an elongated rod entering the lowermost ladder rung supporting the foot plate. A stub arm and lug respectively attached to the utensil frame and the foot plate stabilize the utensil frame in a substantially horizontal plane for supporting workman materials, such as paint containers and tools.

Abstract: A scaffold for an A-frame ladder, including a platform for being positioned between two legs of the ladder, supported on a bottom side of the platform intermediate two opposing ends thereof by a rung of the ladder and extending outwardly from opposite sides of the ladder. The scaffold includes a first strut pivotally attached to the bottom side of the platform adjacent one end thereof and extending diagonally downward for engagement with a rung of the ladder below the rung supporting the bottom side of the platform, and a second strut pivotally attached to the bottom side of the platform adjacent the other end and extending diagonally downward for engagement with the rung of the ladder with which the first strut is engaged.

Abstract: A can supporting device supports a can from the rung of a ladder when the side rails of the ladder abut an upright supporting surface and has a support band of L configuration with first and second arms. The first arm has a hooked free end for hooking onto a rung of the ladder. The free end of the second arm has a retainer for a can resting on the second arm. A circular band is affixed to the first arm of the support band and encircles and thereby restricts movement of the can. An abutting bracket is affixed to the support band in movable relation to the support band into abutment with a rung of the ladder. This stabilizes the position of the supporting device and the can.

Abstract: A ladder stand device for use with conventional ladders comprising a pair of spaced apart side channels aligned to be placed inward from the stiles of a ladder and a bottom step and a top shelf spaced from one another by the distance between every other rung on the ladder. The step and shelf each are pivotally mounted on the pair of channels near opposite terminals end thereof. The step and shelf each have rung engaging locking tabs for engaging a rung, with each lock tab combining with the channels to prevent movement thereof transverse to the ladder stiles. The step further including a hinge for adjusting positioning the step in a storage position parallel to the channels and a rung engaging position for use as a step. The shelf has a padded front side for engagement with a person standing on the step in the rung engaging position. The shelf further has a latch for adjustably positioning the shelf in a storage position parallel to the channels.

Abstract: A stepladder foot-platform comprising a large flat panel, designed to extend through the plane of the stepladder rungs, on this side as well as beyond this plane, between the frame studs, and to come to flatly abut against the top face of an intermediate rung or step. An anchoring foot is provided to frictionally, releasably, fixedly secure the panel about a horizontal plane in an operative, upright, stepladder position, this foot being secured to a lower step. Sliders also act upon the panel to prevent sliding motion of the panel in its horizontal plane, by fixedly securing same frictionally, releasably to the step onto which it rests. The footplate is characterized in that it enables a person to use it by placing his feet on the panel inwardly as well as outwardly from the ladder plane, in total safety, and in that it clears the stepladder so as not to constitute an obstruction to the free travel of that person ascending or descending that rungs.

Abstract: A substantially one-piece ladder attachment is disclosed. The attachment provides a secure, laterally well-supported platform on which a worker wound stand. The invention is particularly useful for an extension ladder, especially one with circular rungs. The attachment of the invention comprises a platform having a single, preferably hollow, vertical support member projecting adjacent one edge thereof. The vertical support is centrally disposed on the edge on which it is located. The vertical support angularly projects from the platform and is connected to an arcuate, horizontally disposed, transversely mounted upon bracket. The upper bracket is intended to engage the rung of a ladder to impart lateral stability to the platform. The attachment further includes a lower, horizontally-disposed, arcuate bracket which is located on the same edge of the platform as the vertical support.

Abstract: A support tray for a ladder, scaffold and the like that includes a load-bearing support bar or strut that is secured to ladder structure below the tray and includes means for adjusting the length of the support bar to maintain the tray in a substantially horizontal disposition for supporting paint containers, tools and the like regardless of the particular ladder step spacing or its angle of disposition at the workplace. The support tray is detachable and adapted to be secured to and removed from a ladder and adapted to support tools, paint containers on a substantially planar floor member and integral upstanding walls. A tray member securing device of clamp is operatively connected to the tray member for securing the tray member to the ladder in a horizontal position at a predetermined height of the ladder.

Abstract: A ladder platform preferably for extension ladders, has supports for receiving ladder rungs and supporting the platform in a generally level condition on any desired position between the top and the bottom of the ladder. The ladder platform provides support for someone working on the ladder and items that might be needed while working on the ladder.

Abstract: A scaffold bracket for mounting on a ladder. The bracket comprises at least two legs, which are connected at one end to define a junction, said legs divergingly extending from the junction to their free ends. A plurality of first rung engaging members are distributed along the legs from their free ends and terminate short of the junction. A link is attached at the junction and terminates in a second rung engaging member. The bracket is so constructed and arranged that the legs are placed over a selected rung of the ladder and are engaged thereon by engagement of a first rung engaging member, the second rung engaging member is engaged over an upper located rung, a second bracket is similarly mounted on a second ladder placed side by side relative to the first ladder, and a wood plank is placed on the two brackets to constitute a scaffold.

Abstract: A ladder jack supported by an inclined ladder and adapted to securely support a work platform comprising a horizontal support member fitted with a longitudinally adjustable clamping means to securely clamp the work platform in locking engagement with the ladder jack and prevent movement of the work platform in all directions and planes while in use.

Abstract: A substantially one-piece ladder attachment is disclosed. The attachment provides a secure, laterally well-supported platform on which a worker would stand. The invention is particularly useful for an extension ladder, especially one with circular rungs. The attachment of the invention comprises a platform having a single, hollow, vertical support member projecting from one edge thereof. The vertical support is centrally disposed on the edge on which it is located. The vertical support angularly projects from the platform and is connected to an arcuate, horizontally disposed, transversely mounted upper bracket. The upper bracket is intended to engage the rung of a ladder to impart lateral stability to the platform. The attachment further includes a lower, horizontally-disposed arcuate bracket which is securely mounted to the same edge of the platform as the vertical support.

Abstract: Stepping platforms, like storage platforms suspendable on a ladder, are known from the state of the art. However, these are not variable in use and in particular cannot simultaneously meet both functions. The invention provides, that a suspension link is supported on one end of a plate with a peripheral edge, while a mounting element is provided on the other end, which mounting element can include two mounting plates, which are supported pivotally on the outside of the plate and include a recess into which a ladder crosspiece is receivable. The inventive ladder platform can be used as an accessory for all types of ladders.

Abstract: A wall scaffold using a pair of ladders equipped with ladder jacks for supporting a horizontal work platform. The invention includes numerous safety features such as a safety railing on standards attached to the outboard ends of the ladder jacks, a paint bucket trolley for the railing, an adjustable anti-flexing brace between the central part of the ladder and the wall to prevent bouncing of the ladder and platform, a unique safety clamp for tightly securing components to the ladder rungs, a ladder level adjuster, an auxiliary step to assist in mounting and dismounting the work platform, and a safety stake attachable to the lowest ladder rung to prevent bottom "slip-out".

Abstract: A safety platform for a ladder comprises a foot platform which engages a lower rung of the ladder and brackets for being secured to an upper rung of the ladder to support the platform. A locking means is provided on the foot platform for securely engaging a lower rung of the ladder to prevent movement of the foot platform. Arcuate elements which engage an upper rung of the ladder are provided with set screws for clamping them to the upper rung also to provide stability for the foot platform.

Abstract: A platform attachment for a ladder having a pair of spaced apart sidepieces connected together by a series of spaced apart rungs includes a pair of spaced apart slideways mounted on the ladder adjacent to respective sidepieces, and a platform extending between and supported on the slideways for sliding movement reciprocatively between a working position projecting forwardly from the ladder and an out-of-the-way position retracted rearwardly from the working position. Preferred mounting structure includes a bracket connected to the slideways and engaging a rung of the ladder above the slideways.

Abstract: An improved safety attachment for a ladder in which the attachment is collapsible to render it more compact for storing and handling purposes yet the attachment can be readily expanded for use on a ladder. The attachment includes a pair of spaced sides which are coupled together by a pair of vertically spaced cross-pieces with the cross-pieces being either removable from connection with the sides or articulated with respect to the sides so that the sides can be moved toward and away from each other to form a compact unit to facilitate storage and handling of the attachment.

Abstract: An auxiliary safety step for a ladder of the type having fluted round rungs defining a plurality of circumferentially spaced longitudinal ribs. A traction body defining a step tread includes an arcuate surface along the underside adapted to embrace the ladder rung. A pair of parallel longitudinal ribs extending laterally outward the arcuate surface interfit into the grooved recesses between adjacent ribs of the rung. A set screw secures the interfit position against separation. Support bars pivotally mounted on the body are adapted for attachment to a similar support bar of a second auxiliary step on a successive rung. The interconnected bars cooperate in stabilizing adjoining safety steps against inadvertent rotation relative to the rungs on which they are placed.

Abstract: A safety attachment for a ladder to permit the user of the attachment, when it is on the ladder, to be locked onto the ladder so that the user will be more positively connected to the ladder. The attachment includes a frame having hooks for removably coupling the frame to the rungs of a ladder. The frame has a pair of spaced cross-pieces or rods which allow one leg of the user to extend partially about one of the rods while the foot or shin of the leg engages the other of the rods.

Abstract: A seat device for a ladder, which seat device comprises a frame, a first hook device extending from the frame and for fitting over a first rung of the ladder, a second hook device extending from the frame and for fitting over a second and adjacent rung of the ladder, a foldable seat extending from the frame and for enabling a person to sit down while working on the ladder, a support member for supporting the seat in an unfolded position, and releasable locking means for maintaining the seat in its unfolded position and for preventing accidental collapse of the seat to a folded position.

Abstract: A two-position ladder platform designed for operation by a single climber so as to provide the climber with a broad foot support in its erected position and to retract to a recessed position to avoid impairing the climber. The device includes a platform section, preferably rectangular in shape, with platform hooks pivotally mounted along adjacent corners of the platform section. Leg sections extend away from other adjacent corners of the platform and terminate in a forked end. In the erected position the platform hooks engage a first ladder rung with the platform extending outward therefrom while the forked ends engage a ladder rung below the platform. The platform is capable of being inward over the first rung into a recessed position which avoids it becoming an obstruction to the user when climbing the ladder. The platform can be easily kicked back into the erected position to provide the climber with support after he climbs passed it.

Abstract: In a platform assembly for a slanted ladder wherein a base is hooked to the ladder and a platform is hinged to the base with a brace pivoted to the platform hold the platform substantially level, improved adjustment means are provided for accomodating different ladder angles characterized by coaxial pins movable simultaneously in opposite directions into and out of a selected pair of aligned holes in spaced side flanges on the platform.

Abstract: This invention relates to an improved safety platform for attachment to a ladder. The locking means of the device is engaged and disengaged without the use of tools or complicated mechanical means. This enables the user to adjust the height of the attachment on the ladder while standing on the ladder above ground level. The platform of the invention is fixed in a generally horizontal plane to hold containers or like articles, or for use as a platform for a person to stand upon while working. The invention is ideally suited for use by painters and like persons who do exacting work at varying heights above ground level while standing on a ladder.

Abstract: An extension ladder workshelf apparatus for supplying a work area on extension ladders. Apparatus is attached by hooks which allows apparatus to be attached at any desired height.

Abstract: A portable ladder platform having locking and leveling features. A platform is provided which attaches to a standard rung type ladder through brace members, one of which is hook shaped for placement over a rung, and another, which is pivotable, moves under the rung to prevent accidental dislodgement of the platform in use. A leveling device is provided which allows adjustment for varying ladder angles.

Abstract: A platform for a ladder having rungs includes a frame and a step structure. The frame is arranged to detachably attach to at least one of the rungs of the ladder. The step structure is hingeably mounted to the frame for providing a footrest. The step structure is sized to swing upwardly and allow a foothold between the step structure and the frame. This foothold is supported by an intermediate one of the rungs.

Abstract: A firefighters' roof scaffolding is disclosed which is used by firefighters for standing upon the roof of a burning building in order to make a ventilation hole in the roof for ventilating the gases, and the like, from the interior of the building. The scaffolding has a cross beam of hollow construction, which mounts at one end a ladder attaching device to attach one end of the cross beam between two adjacent rungs of a conventional roof ladder suspended from the peak of the roof. The other end of the cross beam is provided with a roof attaching device for suspending that end from the roof itself. Each of the ladder attaching device and roof attaching device is secured to a respective end of the cross beam by a mounting block, which is juxtaposed adjacent a mounting plate positioned in the hollow interior of the respective end of the cross beam.

Abstract: A ladder rest comprises interconnected yokes (12,13) which extend across the front or climbing side of an upper ladder section (8) and are mounted on rungs (18) of that ladder section by hooks (17). The yokes extend around the stiles (11) of the ladder and carry abutments (22) which engage a wall (24). The yokes are clear of the stiles of the ladder and of any guide furniture (10) on the lower ladder section, so as not to interfere with complete retraction of the ladder. The abutment portion (22) is below the level of the lower hook (17) at which load is applied from the ladder to the device to provide an advantageous geometry when the ladder is loaded and bows towards the wall.

Abstract: A bracket is adapted for mounting on a ladder (1) as the support means for a work platform as one or more planks. The bracket comprises an arm (2) as a seat for the platform, a carrying bar (3) adapted for being suspended in one of the rungs (4) of the ladder and engaging against a rung situated lower down, and a strut (5) arranged between the carrying bar and arm to support the latter substantially horizontally oriented. The strut has a hook means (6) for optional coaction with one of a row of notches (7) along the carrying bar. The arm is joined to the carrying bar at a first joint (9) and to the strut at a second joint (11). The second joint is movable and comprises two or more non-round and preferably like holes (14) along the arm coacting with a headed stud on the strut.

Abstract: A ladder support erectable onto a ladder for supporting workmen or materials. The ladder support includes a platform and at least two tensionable chain members. The platform is connectable in a generally horizontal position to a ladder rung, after which one chain member is interconnectable between one end of the platform and the upper adjacent ladder rung and another chain member is interconnectable either between the same end of the platform and the lower adjacent rung or the opposite end of the platform and the upper adjacent rung or both for added strength. The platform includes a lower plate connectable to the platform by screws, the mating of the two forming an elongated cavity into which a ladder rung is held. The plate mounting to the platform is adjustable so that the platform may be adjustably positioned fore and aft on the ladder rung.

Abstract: A foot support adapted to be employed with a ladder which employs a generally flat plate member attachable to a shoe and a bracket extending upward and then hooking downward from the toe end of the support. By this configuration, the foot and shoe of a user would basically be supported by a support resting on one rung of a ladder, and further support being provided by the bracket hooking over the next upper rung of the ladder.

Abstract: A device capable of being mounted on a ladder having hollow rungs comprises a platform or tray having a first arm mounted thereon adjacent one end thereof and a second arm pivotably mounted thereon adjacent the other end thereof and extending below the platform or tray, said second arm being adjustable in length and said arms being adapted to enter the hollow rungs of a ladder. In use the first and second arms are inserted in separate rungs of the ladder, the second arm being inserted in the rung below the first arm.

Abstract: A support platform for a ladder is disclosed which is arranged to be assembled with eight bolts by placing a platform on to a pair of straps which have hook members at either end thereof. Further, a spreader bar, that serves as a handle, is fastened across the upper portions of the straps so that the upper portion is stiffened. A leg is spaced inwardly from the hooks at either end of the straps to provide guidance of the platform onto the rungs of the ladder; leg portions are elongated for the purpose of proper engagement with the rungs of the ladder.

Abstract: Sectional scaffolding assemblies are widely used by craftsmen in the construction industry. Multiple levels of interlocking scaffolds are employed to reach high locations. The present invention is shown as a vertical hoisting pole or mast that is furnished with vertically-spaced clamp members located adjacent the lower end of the mast for coupling the mast to both an intermediate upright on an end frame of the scaffolding as well as to vertically-spaced rungs on the end frame. A pulley assembly is suspended from the top of the mast, and it includes a long rope acting with the pulley. One end of the rope is fitted with a loop that is adapted to be lowered over a top corner pin of the end frame. This loop carries an elongated push rod that has a hook formed on the free end thereof.

Abstract: A portable adjustable roof platform for use with a roof ladder so as not to damage a sloped roof surface. The roof platform may be quickly engaged with the roof ladder and adjusted to the horizontal position without handling small locating or fastening parts. The roof platform folds into a compact closed configuration for ease of transportation.

Abstract: A ladder attachment includes a telescopic cross-bar 1A, 2A the ends of which carry wheels 3A for engaging a wall on either side of the ladder. This provides stability and also sets the ladder back from the wall.The center portion 1A of the cross-bar has a pair of hooks 4A which hook over a rung 5A of the ladder and a pair of turnbuckles 9 which hook under a lower rung 12 (after which the turnbuckles 9 are tightened to secure the fixing). The turnbuckles are attached to a sleeve 10 carried by the bar 1A and have hooks 11.A platform assembly 30 can also be mounted on the ladder and connected to the ladder attachment by support struts. The platform assembly includes a support framework 32 in which slots 33 are provided to overlie two rungs 34 and a turnbuckle 35 tightens the framework against the ladder.The ladder attachment can carry a pulley by which goods can be hoisted to the person working on the ladder.

Abstract: A platform device having utility as a ladder platform includes a frame comprising support members, two on each side, with the support members on each side being joined adjacent their upper ends and spread apart at their lower ends. There are means joining the corresponding upper and lower ends of the support members on one side with the support members on the other side. One of the support members on each side has a curved portion at the upper end thereof, which portion is formed and adapted to rest upon the rung of a ladder. The means joining the lower ends of the support members includes a lower platform which is formed and adapted to rest upon a lower adjacent ladder rung. There is a hook member pivotally attached at opposite ends thereof to the distal ends of said curved portions with the hook member being formed and adapted to be self-locking upon the upper rung.

Abstract: A platform accessory (20) for use with a straight ladder (22) includes a flat deck (40) adapted both to engage a lower rung (26L) of the ladder (22) and to connect to a higher portion of the ladder by a pair of resilient bracket arms (82). Lower portions (86) of the bracket arms are hingedly connected to the deck (40); intermediate portions (88) of the bracket arms (82) wrap around the ladder's side rails (24); and, upper portions (90) of the bracket arms are insertable into apertures formed in the side rails (24). In one embodiment, apertures (32) in the side rails (24) communicate with interior portions of hollow rungs.

Abstract: A supporting device for ladders which has two supports which can be connected with rungs of the ladder by two connecting devices. The connecting devices form at least one pair of connecting parts which receive two rungs of the ladder in opposite direction, the connecting parts being at a variable distance from each other.

Abstract: A ladder support for attachment to a first inclined ladder in order to support a second ladder extending upwardly therefrom which includes a base which is attached to the first ladder and bridges a plurality of rungs, a platform hinged at one end to the upper end of the base for supporting the second ladder and a strut assembly hinged to the lower end of the base and adjustably attached to the other end of the platform to hold the platform in a horizontal position.

Abstract: An attachment for a rung-type ladder which provides a generally horizontally disposed supporting surface such as a step. The attachment includes a pair of downwardly opening generally inverted U-shaped members which are positioned over a pair of adjacent ladder rungs combined with a pair of angulated support members attached thereto and provided with a laterally extending upper end portion which combines with the top surface of the uppermost ladder rung engaging member to attach and support a horizontal generally planar supporting member which extends laterally to both sides of the ladder stiles thereby providing a step to receive the shoes of a person using the ladder to provide comfort and stability thereto or support a paint tray, container, tools and the like.

Abstract: In the art of scaffolding, temporarily utilizing elevated planks, stages or platforms for supporting workmen and materials through use of two or more leaning ladders, a compact ladder jack has a tubular, scaffold-supporting arm for storing a suspension chain when not in use. The arm hooks over a ladder rung and the chain is looped over a higher rung. The chain has a snap hook for receiving a preselected chain link to permit mounting of the jack in a position where the arm is disposed horizontally to accommodate variances in ladder inclinations. A latch on the arm guards against accidental displacement of the hook end of the arm from the lower rung.

Abstract: A shelf, having a pair of brackets which extend downward and then forward from its back edge to engage the back edge and underside of either a step, or the top ledge, of a ladder. A stop member, which may be in the form of a pin loosely slidable in a hole through the shelf is spaced so that when the shelf is engaged on a step and pulled forward to bring the brackets snug against the back edge, the pin drops down to be engagable with the front edge and to prevent the shelf from being inadvertently pushed backward from the step. The pin may be pushed up with one finger under it, and the shelf pushed back to disengage the bracket for removal.

Abstract: A tray with a clip and wire frame support for secure mounting on the top platform of a step ladder. The tray is shaped to hold tools, and with small tray pockets - screws, nails and other small items may be held, and if painting is to be done the ladder tray is sized to hold paint trays of substantially all sizes.

Abstract: A step attachment for conventional ladders includes two widened, horizontal steps, one in parallel, spaced-apart relation over the other, the forward edge of each step being positioned in the plane of the ladder and adapted for attachment to respective adjacent rungs of the ladder, and two substantially vertical support hangers pivotally and adjustably attached to the rear ends of the steps, the upper ends of which hangers are also positioned in the plane of the ladder and adapted for attachment to a rung of the ladder above the steps and to depend from the rung a sufficient distance downward to accommodate the pivotal, adjustable attachment of the steps to the hangers.

Abstract: The present invention relates to a foldable ladder attachment adapted to be secured to the rungs of a ladder to provide a platform for paint cans, brushes or like appurtenances or tools. The device is characterized by a novel linkage assembly enabling the apparatus to be readily accommodated to be affixed at an acute or an obtuse angle to a straight or extension ladder or inside or outside the sections of a folding ladder, without necessitating the employment of extensible stretcher mechanisms or like cumbersome devices as embodied in scaffold or platform supports heretofore known.

Abstract: A removable step for a ladder having a base member dimensioned to function as a seat or shelf, including an upward extending hanging member attachable at the upper end to a ladder rung, the lower end being pivoted to the base rearward edge, a downwardly extending support member having a lower end attachable to a ladder rung, the upper rung being pivoted to the base member forward edge, and a retaining bar having the rearward end attached to the base member lower rearward edge, the retaining bar extending underneath the base member and having two spaced apart indentures for removably engaging a ladder rung, the retaining bar serving to keep the base member forwardly pivoted so that it functions as a seat or shelf or rearwardly positioned so that it functions as a step.

Abstract: A platform attachment for a ladder includes a generally rectangular, substantially flat platform having an upturned edge and having an elongate rung-engaging channel secured to the lower surface thereof. A second rung-engaging channel is secured to the platform by a pair of straps. The rung-engaging channels each have a width corresponding to the width of the platform and each is adapted to engage the full length of a ladder rung to securely mount the platform attachment on a ladder.