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US 4,050,214 AGranted
Method of erecting a tower structure
AssigneeTower Technology Inc.
InventorRoy W. P. Johnson
Life of this patent
Estimating the term…
Abstract
A tower structure and a method of erecting same wherein said structure comprises a series of rings stacked in end to end relationship with sealing means between adjacent rings to form a tubular section, anchor means are provided exterior and interior of said section and stabilizing means connect said section at spaced locations along its length to said anchor means.
Claims4
Method of erecting a structure comprising:
- positioning a series of sheave means at each of a plurality of levels on a vertical rigid member, positioning a first ring on the ground surrounding the base of said rigid member, raising said ring to a position above the ground by means of cable means reeved through one series of said sheave means, positioning a second ring below said first ring, inserting sealing means between adjacent circumferential ends of said rings to seal the same, raising said first and second rings by means of cables reeved through said one series of sheave means and a second lower series thereof, respectively, repeating said steps adding rings until said first ring reaches the desired height, and anchoring said cables.
Dependencies are inferred from the claim text.