GB641451A - Thread linings for railway sleeper screws - Google Patents

Thread linings for railway sleeper screws

Info

Publication number
GB641451A
GB641451A GB2531447A GB2531447A GB641451A GB 641451 A GB641451 A GB 641451A GB 2531447 A GB2531447 A GB 2531447A GB 2531447 A GB2531447 A GB 2531447A GB 641451 A GB641451 A GB 641451A
Authority
GB
United Kingdom
Prior art keywords
concrete
linings
coated
screws
railway sleeper
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB2531447A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB2531447A priority Critical patent/GB641451A/en
Publication of GB641451A publication Critical patent/GB641451A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B9/00—Fastening rails on sleepers, or the like
    • E01B9/02—Fastening rails, tie-plates, or chairs directly on sleepers or foundations; Means therefor
    • E01B9/04—Fastening on wooden or concrete sleepers or on masonry without clamp members
    • E01B9/14—Plugs, sleeves, thread linings, or other inserts for holes in sleepers
    • E01B9/18—Plugs, sleeves, thread linings, or other inserts for holes in sleepers for concrete sleepers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Railway Tracks (AREA)

Abstract

When a concrete railway sleeper is moulded internal thread linings formed by one of the methods described in Specifications 609,485, 621,984 and 641,444, which essentially involve winding a metal strip on a mandrel into a helical-shaped coil of which the edges overlap, are placed in the mould either before or after the concrete but before the concrete sets or vibration is applied and the concrete is allowed to set and harden with the internal thread linings in position, so that they are permanently embedded. Before putting a lining into a mould the mandrel on which it was formed is replaced by a screw and the assembly coated with hard insulating material. The coated assemblies are positioned by a jig, care being taken that the screws do not touch the concrete. The screws are removed when the concrete has set. Instead of metal the linings may be made of fabric impregnated with an insulating synthetic resin. The linings may be coated with rubber to absorb shock and prevent loosening. Specifications 13565/12, 236,950, [both in Class 87 (ii)], and 412,537 also are referred to.
GB2531447A 1947-09-16 1947-09-16 Thread linings for railway sleeper screws Expired GB641451A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2531447A GB641451A (en) 1947-09-16 1947-09-16 Thread linings for railway sleeper screws

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2531447A GB641451A (en) 1947-09-16 1947-09-16 Thread linings for railway sleeper screws

Publications (1)

Publication Number Publication Date
GB641451A true GB641451A (en) 1950-08-09

Family

ID=10225704

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2531447A Expired GB641451A (en) 1947-09-16 1947-09-16 Thread linings for railway sleeper screws

Country Status (1)

Country Link
GB (1) GB641451A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1310595A1 (en) * 2001-11-13 2003-05-14 Alstom Method for enhancing resistance of an anchoring element in a concrete slab

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1310595A1 (en) * 2001-11-13 2003-05-14 Alstom Method for enhancing resistance of an anchoring element in a concrete slab
FR2832194A1 (en) * 2001-11-13 2003-05-16 Alstom METHOD FOR REINFORCING THE HOLD OF AN ANCHORING ELEMENT IN A CONCRETE SLAB
US6804928B2 (en) 2001-11-13 2004-10-19 Alstom Method of reinforcing the holding strength of an anchoring element in a concrete slab
AU2002301953B2 (en) * 2001-11-13 2008-08-21 Alstom A method of reinforcing the holding strength of an anchoring element in a concrete slab
KR100916859B1 (en) * 2001-11-13 2009-09-09 알스톰 A Method of Reinforcing the Holding Strength of an Anchoring Element in a Concrete Slab

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