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Document |
Document Title |
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3856112 |
SAFETY ACCESSORIES FOR LADDERS
A stabilizer bar at each side of a ladder is connected at one end thereto by a universal connection and at its other end, the stabilizer bar terminates in a foot pad for ground engagement, to...
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3856109 |
LADDER DEVICE
The invention comprises a ladder device for elevators and bins. The ladder device has a pair of ladder sections mounted to the wall one above the other with their upper and lower ends overlapping...
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3841437 |
PORTABLE STEP STOOL
A stool suitable for standing upon to reach high places is described. The stool includes an upstanding post to be grasped by the user to keep his balance and also includes a roller which is...
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3834491 |
RAIL OR TRUSS STAIRWAY
A truss or rail stairway is provided wherein the handrails support the weight of the stairway treads. The supports for the treads are in the form of triangular members so that a very rigid...
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3826336 |
STEP STOOL
A step stool includes a base engageable with a support surface, such as a floor or the like, and an upstanding support member or standard having a lower end thereof received in a first socket...
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3825098 |
HANGING SCAFFOLDING
A handrail system for hanging scaffolding including a pair of spaced, confronting ladders suspended on an outriggered beam. The rungs of the ladders directly support the scaffold decks of a...
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3804198 |
COMBINATION LADDER AND MUDBOARD
A combination ladder and mudboard structure comprising a pair of spaced, parallel, elongated rung-equipped frame members defining ladder legs with a pair of telescopic extensions mounted thereto, a...
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3794140 |
BOAT LADDER
A boat ladder adapted for mounting on the rear of a boat, for example, on the outside wall of the transom of the boat. The boat ladder comprises a substantially horizontal platform portion...
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3792750 |
SAFETY DEVICE FOR LADDERS
A safety device for use with a ladder having a pair of laterally spaced rails and a plurality of rungs extending between and spaced along the rails with opposed bores spaced along said rails in the...
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3791485 |
MOUNTABLE STAIRCASE, LADDER OR THE LIKE
A mountable staircase or ladder comprises at least two elongated beams and a plurality of treads, which are pivotally connected to each other by means of links, adapted at the ends of the treads...
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3757894 |
VARIABLE HEIGHT STAIRS FOR WORK PLATFORM
A variable height stairway, especially suitable for use with a height adjustable work platform. The stairway comprises step members forming a level base at the lowest position of the work platform...
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3743051 |
STEP STOOL STRUCTURE
A step stool structure having an elongate base with a flat top and a peripheral wall and a floor-engaging member at the bottom of said wall to resist movement when engaging the floor. The base has...
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3743052 |
SUSPENDED STAIRS
Two embodiments of a suspended stairway are disclosed. In the first embodiment a single step formed from slats and spacers is suspended by a pair of iron straps which are secured to a wall. The...
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3710894 |
LADDER PLATFORM ATTACHMENT
A support means adapted to be attached to a ladder to provide a platform operable for supporting an operator or other desirable means while the ladder is in use and includes a frame attachment...
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3710893 |
PORTABLE EXTENDIBLE CRANE WITH WORK BASKET
A power extendible crane boom and ladder having a depending work basket pivoted to a yoke extension on the end of the boom and including adjustable bracing and safety ladder means between the crane...
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3684057 |
PORTABLE STAIRWAY
A portable stairway comprised of sections is releasably lockably mounted onto an outrigger support in turn releasably lockably secured to scaffolding structure or the like. A safety side guard rail...
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3647023 |
BOAT BOARDING STEP AND SEAT
The boarding step is so constructed that it can be secured to the gunwale at the side of a boat cockpit to permit one to enter the cockpit from the dock when facing inwardly. The treads are wider...
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3598200 |
EXTENSIBLE SAFETY APPLIANCE FOR MANHOLE LADDERS
A sleeve attached to the rungs of a manhole ladder has a slidable rod therein which is extendable upward from the manhole to provide a vertical railing for workman on the ladder. A support at the...
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3586124 |
SAFETY LADDER FOR ABOVE-GROUND SWIMMING POOL
An improved ladder assembly is provided for the aboveground type of swimming pool. The ladder of the invention may be bolted to the top edge of the side of the swimming pool, and the section of the...
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3578110 |
STEP FOR MOBILE HOMES AND THE LIKE
A portable, knock down structure comprising one or more steps for use as a means to step up into a mobile home or the like. One or more of the treads may be adapted to be easily opened by hinges or...
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3565210 |
GRATING STRUCTURE
A grating structure having a plurality of regularly staggered parallelly disposed elliptically-shaped openings defining substantially uninterrupted ribs therebetween increasing the structural...
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3559762 |
SAFETY LADDER FOR WATER USE
A safety ladder for use in water in combination with a pile extending above the surface of the water and a floating structure. The floating structure includes means for encircling the pile to be...
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3556251 |
ADJUSTABLE STAIRCASE STRUCTURES
A prefabricated staircase is adjustable to be fitted between floors and comprises at least one parallelogram truss supported at its two lower corners to the two floors by respective supporting...
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3554320 |
LADDER-SLIDE APPARATUS
A folding ladder-slide apparatus for an aircraft transfer vehicle having a passenger compartment capable of being positioned to various elevations within a given range above ground level. In cases...
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3512608 |
LADDER STRUCTURE
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3474882 |
PREFABRICATED STRUCTURAL ELEMENTS,ESPECIALLY FOR CONSTRUCTING A STAIRCASE,SCAFFOLD,OR THE LIKE
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3455414 |
RETRACTABLE EXTENSION FOR FIXED LADDERS
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3439775 |
SAFETY DEVICE FOR STAIRS
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3430729 |
STAIRWAY
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3428146 |
LADDER HAVING TELESCOPING SECTION
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3403749 |
Aircraft stairway assembly
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3385398 |
Extension ladders
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3381775 |
Stair tread structure
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3372772 |
Safety guard
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3360075 |
Bed ladder hook
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3336999 |
Hunting stand
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3331467 |
Stairway suspended from stringers
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3311195 |
Safety guard for pool ladder
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3307653 |
Demountable stairway unit
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3305045 |
Boat ladder
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3303906 |
Safety ladder
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3288248 |
Pool ladder
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3288247 |
Safety stepladder
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3285367 |
Emergency boat ladder
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3263773 |
Inclined collapsible ladder
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3180451 |
Fire escape stairway
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3142355 |
Collapsible step bench
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3139155 |
Ladder handrail
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3139154 |
Safety guard attachments for ladders
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3136384 |
Detachable ladder handrail
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