FASTENING FLAT-BOTTOM RAILS ON CONCRETE SLEEPERS

The Skull Hoop Clip fastening consists essentially of two steel hoops cast into a class "F" concrete sleeper on each side of the rail seat, and two resilient spring steel clips. Insulation of the assembly is provided by a rubber rail pad and two insulators to fit between the rail flange, the vertical bars of the hoops, and the spring clips. Laboratory testing included torsion, creep, and moment of resistance tests. The results showed an efficiency superior to that of most other fastenings tested in the same manner. Besides a superior holding-down efficiency compared with a number of other types of fastenings, this clip features simplicity of design, ease of assembly, and extraction of the clip without the need for specially designed tools.

• Corporate Authors:

  Temple Press Limited

  161-166 Fleet Street
  Longon EC4,   England 
• Publication Date: 1959-3-6

Media Info

• Features: Photos;
• Pagination: p. 275-276
• Serial:
  • RAILWAY GAZETTE
  • Volume: 110

Subject/Index Terms

• TRT Terms: Concrete; Concrete ties; Construction; Creep; Fasteners; Fastenings; Maintenance of way; Mat footings; Railroad ties; Railroad tracks; Rubber; Structural design; Technology; Torsion
• Uncontrolled Terms: Track design
• Geographic Terms: United Kingdom
• Old TRIS Terms: Clip fasteners; Rubber mats
• Subject Areas: Construction; Railroads;

Filing Info

• Accession Number: 00037989
• Record Type: Publication
• Files: TRIS
• Created Date: Dec 4 1994 12:00AM