Device for detecting and measuring the tension on a cable

• US 4,842,207 A
• Filed: 06/02/1988
• Issued: 06/27/1989
• Est. Priority Date: 11/02/1987
• Status: Expired due to Fees

• Current Assignee: Underground Technologies, Inc.
• Original Assignee: Underground Technologies, Inc.
• Inventors: Kinnan, Frank R.
• Primary Examiner(s): NOT, DEFINED
• Assistant Examiner(s): NOT, DEFINED
• Application Number:
  US07/202,007
• Time in Patent Office: 390 Days
• Field of Search: 242/86.5 R, 242/117, 242/118, 242/147, 242/77, 242/54 R, 242/86.7, 242/75.47, 242/45, 242/75.44, 254/134.3 R, 254/134.3 FT, 73/862.39, 175/67, 175/19
• US Class Current: 242/390.9
• CPC Class Codes: E21B 17/203 with plural fluid passages
• CPC Class Codes: E21B 17/206 with conductors, e.g. electrical, optical
• CPC Class Codes: E21B 19/22 Handling reeled pipe or rod units, e.g. flexible drilling pipes lifting or hauling appliances using two or more cooperating endless chains B66D3/003
• CPC Class Codes: E21B 4/145 of the self propelled-type, e.g. with a reverse mode to retract the device from the hole
• CPC Class Codes: E21B 47/0232 at least one of the energy sources or one of the detectors being located on or above the ground surface
• CPC Class Codes: E21B 47/13 by electromagnetic energy, e.g. radio frequency
• CPC Class Codes: E21B 7/065 using oriented fluid jets
• CPC Class Codes: E21B 7/068 drilled by a down-hole drilling motor down-hole drives per se E21B4/00, E21B7/067 takes precedence
• CPC Class Codes: E21B 7/18 Drilling by liquid or gas jets, with or without entrained pellets E21B7/14 takes precedence
• CPC Class Codes: E21B 7/26 Drilling without earth removal, e.g. with self-propelled burrowing devices E21B7/30 takes precedence

Abstract

A cable reeling system which provides means to control the tension applied to a cable during rereeling including a reel having an axle supported by members mounted upon a first skid which also supports a drive motor for such a reel. The first skid is mounted upon a second, longer, skid to which is coupled by 4 links so as to aligned the skids adjacent their first ends. A tension gauge is mounted on second skids adjacent to its second end and coupled to the first skid at its second end to measure the actual tension between first and second skid which is related to the tension applied to the cable by the reeling system.

Claims

1. A device for detecting the tension applied to a service cable being withdrawn from a bore comprising a reel having a central hub and circular end plates adjacent the ends thereof;

an axle extending through said hub and end plates and resting upon supports anchored to a first skid means;

a variable speed motor mounted upon said first skid means and coupled to a drive hub upon said reel by a driving belt to control the speed of rotation of said reel;

second skid means loner than said first skid means aligned with its first end adjacent the first end of said first skid means and a second end of said second skid means extending beyond the second end of said first skid means;

link means joining said first ends of said first and second skid means and the second end of said first skid means to said second skid means at a point intermediate said first and second ends and tension means coupled between the second ends of said first and second skid means to measure the tension in the service cable as a result of the rotation of the reel.

2. A device for detecting the tension applied to a service cable as defined in claim 1, further including a direct reading gauge coupled to said tension means whereby an operator can vary the speed of the variable speed motor until the speed of and the tension in the supply cable are at their desired levels.