US 4,399,891 AGranted

Anchoring device for flexible ladder

AssigneeRay-Jens Corporation

InventorJens A. Heilskov

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Abstract

An anchoring device for use with a flexible ladder. The ladder is provided with an upper end having connecting elements. The anchoring device is arranged to connect the upper end of the ladder to an upstanding annular access manhole projection, such as provided on a storage spheroid. The anchoring device includes an arcuate caster support having opposite end portions to which are connected the opposite ends of a flexible connector to which the connecting elements of the ladder are movably connected. The caster support is provided with a plurality of casters rotatably mounted to roll about the manhole projection so that the flexible ladder may be hung from the projection for ready adjustability on the spheroid about the vertical axis thereof.

Claims10

Dependent claims

For use with a flexible ladder having an upper end provided with connecting elements, an improved anchoring device for connecting said upper end to an upstanding annular access manhole projection such as provided on a storage spheroid, said anchoring device comprising:

an arcuate caster support extending at least approximately 180.degree. and having opposite spaced distal ends;
a plurality of casters rotatively mounted to said caster support at circumferentially spaced positions for radially inner rolling engagement with said access manhole projection;
and
a flexible connector having ends secured to said caster support distal ends and arranged to have said flexible ladder connecting element movably connected thereto whereby the flexible ladder may be hung from the access manhole projection for ready adjustability on the spheroid about the vertical axis of said access manhole projection.

1 more element

Dependencies are inferred from the claim text.