Stone block transporting crawler-climber

• US 20080279655A1
• Filed: 05/07/2007
• Published: 11/13/2008
• Est. Priority Date: 05/07/2007
• Status: Active Grant

• Current Assignee: Vincent Dean Herreid
• Original Assignee: Vincent Dean Herreid
• Inventors: Herreid, Vincent Dean
• Granted Patent: US 7,669,861 B2
• Time in Patent Office: Days
• US Class Current: 414/11
• CPC Class Codes: E04G 21/16 Tools or apparatus devices for erecting fences E04H17/26

Abstract

Twinned circular, parallel arrays of spoke-like second-class levers (10, 12) enclosing a centered cargo cradle for towing 2½ ton stone blocks (26) up a stepped structure of stone courses (34) by rotation of the whole.

Claims

1. A two section rotary machine called a crawler-climber, enclosing a centered cargo cradle for transporting stone blocks, The three pieces being fastened securely together and towed upwards on a stepped structure of similar sized said stone blocks, by rotation of the whole.

4. A four levered version of claim 1, wherein outside levers and inside levers on each side are paired, fastening and pivoting the levers at the middle.

2. Each of the two right and left parallel sections consisting of a plurality of second-class levers joined and reinforced at the middle in spoke-like arrays designed to fit the outer ends of corresponding right and left levers into receding corners of the step-like structure in a consecutive sequence.

3. Sidewards protrusions near the outer end of each lever, facilitates fastening and releasing rope yokes for a step by step advancement up the structure being built.

5. The stone block is centered and fastened only to the inside levers.

6. The levers can be pivoted forwards and backwards 60°

in relation to each other to fit succeeding levers into succeeding interior corners of succeeding stone courses of the same or varying size.