Journal bearing wear detector

• US 3,102,759 A
• Filed: 05/19/1960
• Issued: 09/03/1963
• Est. Priority Date: 05/19/1960
• Status: Expired due to Term

• Current Assignee: John T. Stewart
• Original Assignee: John T. Stewart
• Inventors: Stewart, John T.
• Application Number:
  US04/030,195
• Time in Patent Office: 1,202 Days
• US Class Current: 384/276
• CPC Class Codes: B61F 15/02 with journal bearings
• CPC Class Codes: F16C 17/02 for radial load only
• CPC Class Codes: F16C 17/246 related to wear, e.g. sensors for measuring wear
• CPC Class Codes: F16C 2326/10 Railway vehicles in general B61

Claims

1. IN COMBINATION, A RAILWAY JOURNAL BEARING AND AN ELECTRICAL WEAR DETECTION SYSTEM, COMPRISING, A BEARING HAVING A BEARING BLOCK, A SOFT WEAR METAL LINING CARRIED BY SAID BLOCK WITH A SEMI-CYLINDRICAL WEAR FACE OF LARGER CURVATURE THAN THE CIRCUMFERENCE OF A SHAFT ADAPTED TO BE JOURNALED IN SAID BEARING, SAID LINING HAVING FIRST AND SECOND END WALLS, SAID BEARING LINING HAVING A CENTER LINE AREA AGAINST WHICH THE SHAFT WILL WEAR DURING REST AND STABLE TRAVEL PERIODS, A FORWARD AREA AGAINST WHICH THE SHAFT WILL WEAR DURING APPLICATION OF FORCES AGAINST A LOAD IN ONE DIRECTION, AND A REARWARD AREA AGAINST WHICH THE SHAFT WILL WEAR DURING APPLICATION OF FORCES AGAINST A LOAD IN THE OPPOSITE DIRECTION, AN INSULATED CONDUCTOR SYSTEM EMBEDDED IN SAID LINING AREAS AND INCLUDING A PLURALITY OF CIRCUMFERENTIALLY SPACED, INSULATED CONDUCTORS EXTENDING AXIALLY SUBSTANTIALLY THE FULL LENGTH OF SAID LINING BETWEEN SAID END WALLS, SAID CONNECTORS BEING CONNECTED IN PARALLEL CIRCUIT RELATION AND SAID CONDUCTOR SYSTEM HAVING AN EXTERNAL TERMINAL WHEREBY THE BEARING WILL HAVE THE ENTIRE DESIGNED STRENGTH WITH NO WEAKNESS BY REASON OF THE DETECTION SYSTEM AND WILL PROVIDE A SINGLE TEST SYSTEM FOR THE ENTIRE WEAR FACE AND END WALLS.