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Document Title |
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3963756 |
Derivatives of 6-methyl-2H-pyran-2,4(3H)-dione
New compounds of the formula ##SPC1## Wherein Ar is selected from the group consisting of phenylethyl, furyl, methylfuryl, thienyl, pyrrolyl, naphthyl, hydroxynaphthyl, and phenyl substituted by at...
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3910378 |
Scaffold structure
A scaffold structure comprising a ladder assembly that is maintained in a substantially vertical orientation during use by means of two arms extending outwardly from two support members and that...
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3910380 |
Ladder with clamp equipped wall engaging bracket
A support arm structure for the upper end of a ladder is provided and includes mounting structure for mounting one end of the support arm structure on the upper end of a ladder for swinging of the...
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3896900 |
Ladder attachment
A ladder attachment adapted to be connected to the end of a ladder for the purpose of securing a ladder around a pole-like member. The ladder attachment includes a two part rod-like structure...
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3853202 |
LADDER SUPPORTING DEVICE
A safety device for use with ladders which are leaned at an angle to the wall of a house or the like, with their upper ends resting against a relatively narrow, horizontally extending surface, such...
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3828889 |
MULTIPLE ACCESSORY ATTACHMENT FOR LADDERS
Top end caps are fixed to side rails of a ladder, each end cap having a pair of linearly aligned longitudinal slots therein, each slot having a closed upper end and an enlarged entrance at its...
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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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3779344 |
MULTI PURPOSE LADDER
This invention relates to a ladder attachment adapted to support the top of a ladder spaced outwardly from a vertical supporting surface and a platform adjustable to various width ladders for the...
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3773143 |
ROLLER ATTACHMENT FOR LADDERS
A roller attachment for ladders comprises a telescopically adjustable bar carrying roller wheels at its opposite ends and having adjustably mounted clamps receptive of upper ends of the stiles of a...
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3757896 |
LADDERS
This invention relates to a ladder capable of being erected from a plurality of similar rungs and links, the ladder being capable of being folded in a zig-zag manner and also of being dismantled...
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3741510 |
LADDER SUPPORT SPACER
A support and spacer device for ladders, especially suitable for use with scaffold structures, the device including a downwardly opening U-shaped hook supporting a rectangular frame having a...
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3734236 |
ADJUSTABLE LADDER PLATFORM
A stand off platform is attached to the top of a ladder to hold it away from an adjacent wall. The platform supports tools, paint cans, and the like. A suitable cushion on the edge of the platform...
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3715012 |
SAFETY LADDER BRACE
A safety device for supporting an upper end portion of a ladder having a pair of side rails joined by rungs wherein the safety device includes a body member having a pair of diverging arms forming...
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3713510 |
LADDER PUSH-OUT APPARATUS
A push-out apparatus adapted to be attached to a ladder for moving the ladder to a selected adjusted position relative to a surface against which the ladder is supported. The push-out apparatus...
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3708080 |
LADDER BRACKET
Separate brackets are adjustably clamped to the corresponding side rails of a ladder to interlock with a selected rung of the ladder, and a leg is pivotally carried by each bracket and adjustably...
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3703939 |
PORTABLE TREE STAND
A portable tree stand for hunters use formed of a plurality of sections detachably secured together to support a seat section extending horizontally from the top of the erected sections to engage a...
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3603431 |
LADDER AND SUPPORT BRACKET THEREFOR
A support arm for a ladder including mounting structure on one end of the arm rotatable relative to the latter about an axis extending transversely of the arm. The mounting structure is adapted for...
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3568801 |
LADDER STABILIZING DEVICE
A stabilizing device is provided with a pair of inverted, rung engaging channel members and two outwardly diverging arms, the arms being connected together by a lateral brace. The channel members...
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3459277 |
LADDER JACKS
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3419109 |
Ladder attachment for use with aluminum siding
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3336999 |
Hunting stand
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3318415 |
Platform for ladders
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3318416 |
Stepladder accessory
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3315411 |
Tree prop
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3288249 |
Gutter bridging ladder attachment
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3282375 |
Mobile stand for hunters convertible to a hand cart
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3268196 |
Safety lock for ladders
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3266593 |
Ladder bracket
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3182749 |
Ladder platforms
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3169503 |
Demountable boat ladder
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3146854 |
Hold away ladder attachments
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3115211 |
Ladder hoist
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3100026 |
Extendible ladder top support
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3072218 |
Stand-off ladder bracket
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3062319 |
Anti-slip anti-mar ladder head
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3061042 |
Collapsible ladder
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3057431 |
Portable sportsman's seat
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3056466 |
Stand-off for boarding ladder
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3042142 |
Step-ladder attachment
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3037579 |
Ladder attachment
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3028929 |
Ladder attachment
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3027968 |
Ladder fittings
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3020973 |
Ladder support for horizontal timber
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3019851 |
Extension ladder
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2998863 |
Fire escape ladders
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2993562 |
Ladder pad
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2975859 |
Elevator for roofing material
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2934163 |
Ladder attachment
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2924291 |
Folding boarding ladder
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2908345 |
Combined ladder and scaffold sling support
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