Abstract: A ladder shoe that comprises a ladder rail attachment portion which attaches to a ladder rail of a ladder. The ladder shoe is also comprised of a base. The base comprises an elongate portion having a first side and a second side, a first edge and a second edge, a top face and a bottom face. The top face is attached to the ladder rail attachment portion. The base is also preferably comprised of a foot pad. Additionally, the base is comprised of a blade portion extending from the first edge. Moreover, the base is comprised of a first flange portion extending from said bottom face and integrally connected therewith. There is a second flange portion extending from the bottom face and integrally connected thereto. Additionally, the base comprises a third flange portion extending from the bottom face and integrally connected thereto; and a fourth flange portion extending from the bottom face integrally connected thereto.

Abstract: A stabilizer system for a step ladder which comprises a set of four rigid boots adapted to be mounted one on each leg of the ladder. The boots each have a large flat plate forming the support base and are pivotally mounted on each leg so as to be self-leveling. When in place they will prevent the ladder legs from sinking into a soft surface and may be provided with a non-skid covering and a toothed surface for use on hard surfaces or slippery surfaces such as mud or ice.

Abstract: A ladder leveling device used in conjunction with a ladder on sloping ground or roof surfaces. This device may be adjusted to the slope of the ground or roof and is placed under one or both legs of a two-legged ladder. The device is comprised of a horizontal plate upon which the ladder leg rests, a vertical plate attached to the end portion of the horizontal plate, an adjustment plate with adjustment grooves therethrough which is adjustably bolted to the vertical plate. A swiveling anti-skid-plate is connected to the lower edge of the adjustment plate and adjusts itself to the slope of the roof or ground.

Abstract: A ladder leveler device to level and stabilize a ladder on an uneven surface, comprising a generally rectangular shaped base plate having a plurality of threaded holes located on each wide end, a plurality of hollow jack screws complimentary to and threading through the plurality of threaded holes on each wide end, a plurality of Allen head bolts reposing freely within the hollow jack screws, washers and lock-nuts on the plurality of Allen head bolts, a square tubular guide attaching longitudinally to the center of the rectangular shaped base plate, a square tubular shaft which is slidable within the square tubular guide, a plurality of longitudinally aligned holes in the center of one longitudinal side of the square tubular shaft, a restraint on one end of the square tubular shaft, a longitudinal cut-out in the center of the side of the square tubular shaft opposite the longitudinal side with the plurality of longitudinally aligned holes, a pivoting foot securing to the square tubular shaft by means of a bol

Abstract: A ladder extension leg apparatus is provided, wherein at least one of the first and second ladder legs includes a leg sleeve receiving the ladder leg to permit telescoping reception of the ladder leg to impart unequal effective length to the first and second legs to accommodate various uneven support heights to the ladder structure.

Abstract: The present invention provides a safety ladder in which at least one leg of the ladder is adjustable in length to accommodate an uneven terrain.

Abstract: For enhancing the safety of a ladder, adjustable extensions (14) can be attached to the bottom ends of the side rails of the ladder so as effectively to adjust the lengths of such rails so that the ladder will not lean to either side, regardless of any difference in heights of the ground or support areas under such rails. Also coupling cables (66) couple the ladder to the wall of the building against which the ladder leans. The coupling cables connect the midpart of the ladder to a horizontal wall cable (64) which is attached along and parallel to the wall of the building. The top of the ladder is stabilized against rolling to either the left or right and so that it can be positioned stably against irregular supports, such as windows, eaves, pitched roofs, pipes, etc., by means of stabilizing bars (74) connected to its top and suitably shaped to mate with the irregular supports, and by extension arms (82) which project out from the top of the ladder. Hand holds (88) are attached to the extension arms.

Abstract: An apparatus for securing and stabilizing a ladder and extension ladder structure relative to a dwelling is provided, wherein the apparatus initially includes a plurality of arcuate arms mounted adjustably relative to tracks, wherein each track is secured to opposed ladder legs of an associated ladder structure. The arms each include anchor blocks, and the arms forward distal ends are mounted within cavities of each respective anchor block for positioning each anchor block upon a roof top surface. A further aspect of the invention includes organization for positioning and mounting the anchor structure relative to a bottom surface of a roof or to a vertical wall surface to include legs mounted adjustably relative to each ladder leg, wherein each of the legs are formed in an extensible configuration to include anchor structure mounted to each forward distal end of each of the legs.

Abstract: A ladder shoe for providing enhanced stability between a ladder and a variety of surfaces. The ladder shoe is comprised of a shoe body having a first side plate, a second side plate and a base. The first side plate and the second side plate are attached to the base. The side plates include curved slots through which a fastener is disposed which movably connects the ladder shoe to the end of the ladder's side rail, thereby allowing the ladder shoe to move between a first position where the base is at a first angle with respect to the side rail and a second position where the base is at a second angle with respect to the side rail. Each slot has a notch in which the fastener catches causing the shoe to be maintained in an intermediate position until the shoe body is desired to be placed into another position. The base has a bottom which provides a slip resistant surface for engaging the shoe body to essentially flat surfaces when the shoe body is in the first position.

Abstract: A quick stand adjusting device for adjusting the height of the stand of a ladder, a chair, an instrument or equipment, comprising a split retainer controlled by a control device, which is comprised of a crank, a transmission rod and a movable stop block, to move in and out of a recessed chamber in a lock socket at the bottom so as to engage or release a support which is extendibly inserted in the stand.

Abstract: A stand-off brace for attachment to the top end of a ladder maintains the top end of the ladder away from the work surface against which it would ordinarily rest. The brace has a general U-shape wherein the legs are reversible to vary the distance between the ladder and the work surface. The distance between the legs is also adjustable so that the brace spans the work surface. The legs are fitted with resilient ads for contacting the work surface without damage. Corner adapters are connected to the legs and the pads are pivotally attached to the adapters to maintain flush contact with the walls of a corner or a curved surface. The corner adapters have an angular offset to maintain flush contact with the ladder positioned at the recommended working angle.

Abstract: A Johnson Ladder Leveler serving to level a ladder on an uneven surface comprising an extension leg held by a bolt nut apparatus to a treaded triangular foot which said extension leg extends longitudinally when in use while fastened by way of a spring pin head on a spring pin welded to said extension's leg's medial side and by way of a threaded screw bolt from without to a ladder receiving sleeve via insertion into said ladder receiving sleeve's outermost of two compartments while said ladder receiving sleeve internally holds an internally mounted ladder leg within the innermost of said ladder receiving sleeve's said two compartments.

Abstract: A ladder leg extender apparatus for attachment to the leg of a ladder to lengthen the leg as required to support the ladder on an uneven support surface. The apparatus comprises a sleeve secured to a shortened leg of the ladder which slidably carries an extendible support leg therein for movement inwardly and outwardly of the sleeve to adjust the length of the leg. Infinitely variable vertical adjustment of the support leg is achieved by (1) loosening two turn bolts which secure the support leg between the bolts on one side and a coarse file on the other side thereof within the sleeve and then (2) tightening the bolts when the support leg is properly slidably adjusted with the associated ladder is in an upright and level orientation.

Abstract: An attachment for a ladder includes a housing and an extensible leg. The housing is clamped to the side of a ladder, and the extensible leg is extended to engage the ground after the ladder has been placed level. A bubble level is provided for visually determining when the ladder is level.

Abstract: A ladder adjustment apparatus (10) which is designed to be secured to the rungs (101) of a ladder (100) whereby the apparatus (10) may be laterally shifted on the rungs (101) to position the apparatus (10) adjacent either leg (102) of the ladder without the need for physically detaching the apparatus (10) from the ladder (100).

Abstract: Stabilizer apparatus for attachment to an extension ladder for inhibiting sideways tipping and downward/rearward slipping thereof. Attached to the opposed side rails of the ladder proximate the upper end of the lowermost section are hinge blocks for pivotally joining a pair of tubular, telescoping, extensible legs to the ladder. The hinge brackets are specially designed to permit the tubular legs to be swung parallel to and directly adjacent with the ladder's side rails when the ladder is to be stowed and which the legs to be rotated laterally outward and forward of the base of the ladder during use. An articulated brace extends between the pair of legs and their associated ladder side rails to limit the extent to which the legs may be splayed relative to the ladder.

Abstract: A leveling device for a ladder which includes a pair of rails, hollow rungs spanning the rails, and foot members pivotally attached to lower portions of the rails. A channel shaped leveling accessory slides on a first one of the rails. Spaced openings are provided in a web of the channel shaped accessory. A selected opening can be aligned with a selected rung. An elongated pin is received in the selected opening and extends through the hollow rung. At end portions of the pin member outboard of the rails and outboard of the channel shaped accessory, fasteners are mounted in the pin member to hold the channel shaped accessory in position. An accessory foot is pivotally mounted on the accessory below the first mentioned rail. The foot members are arranged to support the ladder in upright position.

Abstract: An apparatus 10 provides easy, stable positioning of a ladder within a stairwell. The apparatus 10 includes multiple base portions 14, 24 which traverse and rest upon multiple steps 20, 28. Sidewall braces 38, 40 adjustably engage the stairwell sidewalls to inhibit lateral movement of the base portions 14, 24. A bracket 52 is pivotally connected to the base of the ladder and rotatably connected to the base portions 24. Accordingly, the ladder is free to be manually rotated and pivoted to rest against any of the walls forming the stairwell.

Abstract: A bracket forms the base for a scaffolding post and includes a rectangular receiving box with an open top face for receiving and holding a vertically extending scaffolding post. The receiving box pivots about a horizontal axis established by a pin held in a base member of the bracket. This base member includes a flat nailing plate which can be used to secure the bracket to a pitched roof. The pin allows a free pivoting of the receiving box with respect to the angle of the pitched roof to which the nailing plate is attached.

Abstract: An improved ladder leg extender and leveler assembly including a frame structure which can be fixed in flush face-to-face relation to a ladder leg side so as to straddle rung fastener protrusions on the ladder leg side, thus avoiding bending stresses, the arrangement permitting quick and efficient assembly.

Abstract: An anti-slip attachment for each side rail of a ladder, designed to keep the ladder a predetermined distance away from a side wall of a building, has a bevelled end that allows a backing plate attached thereto and on which a resilient pad and a removable cover are mounted, to pivot at an angle of 0.degree.-25.degree. with respect to the axis of the ladder.

Abstract: A device for leveling a metal ladder comprising a mounting bracket which can be attached to the outside web of a ladder side rail, a threaded shaft embodied with a handle at its upper distal end and a convex semi-shperical head at its lower distal end which is sized to operate within a threaded bore hole in the distal member of said mounting bracket in order to provide means to raise or lower a pivotable ladder foot embodied with a concave semi-spherical surface within the raised center portion of said foot in order to provide a pivoting means for said foot with respect to said threaded shaft.

Abstract: Ladder leveler apparatus includes a frame portion, a support portion, an affixing portion, an aligning portion and a positioning portion. The frame portion includes an elongated U-shaped section, the U-shaped section including a main section having a width slightly larger than the width of a ladder leg. Transverse side sections extend from the main section adjacent side edges thereof along substantially the entire length of the main section, the side sections having a width at least about equal to the thickness of the ladder leg. The main section includes at least one longitudinal channel section. The support portion includes a foot member extending from one end of the frame portion, the foot member being pivotally connected to the ladder leg. The foot member includes a connector section and a base section disposed on a free end of the connector section remote from the ladder leg.

Abstract: Ladder leveling apparatus includes a frame portion, a support portion, a slider portion, a retainer portion and a positioner portion. The frame portion includes an elongated U-shaped section, the U-shaped section including a main section having a width slightly larger than the width of a ladder leg. The main section includes at least one longitudinal channel. The support portion includes a foot member pivotally connected to the ladder leg. The foot member includes a connector section and a base section. The slider portion includes a guide member disposed within the channel, the guide member having a width slightly less than the width of the channel and a thickness slightly greater than the thickness of the main section. At least one opening extends through the guide member. The retainer portion includes a plate member disposed over the guide member, the plate member having a width significantly larger than that of the channel. An opening through the plate member is aligned with the guide opening.

Abstract: A ladder leveller includes an adjustable base having two adaptors suitable for receiving the ladder feet and a pair of telescopic legs respectively fixed under the two adaptors, wherein both the telescopic legs can be optionally adjusted their heights to allow the base and the ladder feet riding on the base horizontally standing on a rugged floor surface in a stable way.

Abstract: Ladder to the lower section of which are fitted two outriggers extending outwardly and forwardly for the purpose of enhancing the safety of the ladder in use. Each outrigger has a foot and is capable of being folded up against and parallel to the stile to which it is fitted for storage or transportation. The outriggers are lockable in any desired position by a cam and friction plate mechanism. Preferably each stile is provided with an adjustable extension leg controlled by a ratchet and panel arrangement to facilitate use of the ladder on uneven ground.

Abstract: A ladder consisting of a pair of spaced rails, a plurality of rungs having opposite end portions with first holes extending therethrough for receiving the rails in complementary mating relationship, first slots extending inwardly into the rungs from the bottom sides thereof and terminating at bearing areas which bear on the outer ends of first pins which are carried by the rails, and a pivotal rung-like base having end portions with second holes extending inwardly from the top side thereof for receiving the ends of the rails and second slots extending inwardly into the rung-like base from the top side thereof terminating at bearing surfaces which carry the load transmitted by the outer ends of second pins mounted on the lower ends of the rails.

Abstract: In order to indicate whether a straight or extension ladder is positioned safely for use, a first label is provided on the side rail of the ladder and includes a level for indicating when the ladder is properly angled and a second label and a cooperating pointer are provided at the foot of the ladder to indicate if the base of the ladder is at a safe angle relative to the support surface.

Abstract: A device for leveling a ladder is disclosed which comprises a leveler guide with a hollow section which is secured to the lower portion of the ladder, a leveler leg which is sized and shaped to fit within the hollow section of the leveler guide, a plurality of guide openings spaced apart a pre-determined distance extending horizontally through the hollow portion of the leveler guide, a plurality of leg openings spaced apart a pre-determined distance extending horizontally through the leveler leg, and a securing apparatus sized and shaped to fit through the plurality of guide openings and through the plurality of leg openings in order to rigidly secure the device to the ladder.

Abstract: A ladder foot (20) comprises (a) a bracket means (25) attachable at its upper end to a ladder rail (11) and including a stud (35) extending downward from such end, (b) a shoe (60) including a central sole plate (61) and a pair of upper plates (62, 63) extending from the sole plate to straddle opposite sides of the bracket means, and (c) a pin (75) fixedly secured with the upper plates and passing from one to the other through the bracket means adjacent the front side of the stud. The downward extent of the stud includes an upper range within which the stud fits between the pin and sole plate in such manner that the shoe is locked in toe-down position. Such extent also includes a lower range for which, if the pin is moved to register therein, the shoe is angularly adjustable from its toe-down position through a range of angular positions including a flat position.

Abstract: The present invention provides a base device for attachment to a ladder comprising a base, a top pivotally mounted on the base, ladder receiving means on the top of securably and releasably receiving the ladder therein, and adjustment means on the top for holding the top in a selected position relative to the base.

Abstract: Top, bottom and a pair of side panel type members are affixed to each other at their ends to form a rectangular configuration. A pair of foot members are pivotally affixed to the bottom member in juxtaposition therewith in spaced relation with each other in a manner whereby the foot members are positioned in alignment with the members in inoperable position and extend at right angles with the bottom member, although in a plane parallel to that of the bottom member, in operable position whereby they support the saw horse in an upright position.

Abstract: The safety of ladders is improved by providing them with pivoted foot members that carry ground spikes that rest against the foot member when not in use and rotate for ground penetration into a position in which the foot member exerts leverage to dig the spikes into the ground.