Arthur C James

US Patent:

39980294, Dec 21, 1976

Filed:

Jul 11, 1975

Appl. No.:

5/595072

Inventors:

Arthur M. James - Beaverton OR
Charles J. Conlee - Portland OR

International Classification:

E04H 1234

US Classification:

52747

Abstract:

A tower crane and method of climbing the crane. The tower of the crane is initially stabilized at an elevated location, and the tower is released from a base frame supporting its base and elevated to place its base on an upper frame, the base frame is then elevated, and the tower is then dropped to place it on the newly positioned base frame with the upper frame then used to laterally stabilize the tower with the crane in operative condition.

US Patent:

40464148, Sep 6, 1977

Filed:

May 3, 1976

Appl. No.:

5/682220

Inventors:

Arthur M. James - Beaverton OR
Charles J. Conlee - Portland OR

International Classification:

B66C 110

US Classification:

294 81R

Abstract:

Apparatus for hoisting a structural member including a load-distributing device with multiple strands depending therefrom secured to the structural member through hangers engaging A-frames in the structural member. The A-frames form truss structure imparting rigidity to the structural member, and have apexes adjacent the top surface of the structural member which the hangers engage.

US Patent:

40708365, Jan 31, 1978

Filed:

Aug 11, 1976

Appl. No.:

5/713415

Inventors:

Arthur M. James - Beaverton OR
Edgar Terry Dalton - Lake Oswego OR

International Classification:

E04B 136
F16C 1702

US Classification:

52245

Abstract:

A bearing member intermediate structural members provide for low friction relative movement of the structural members comprising, in operative position, a flattened tube having an elastic wall and an anti-friction medium deposited within the tube.