FR2446158A1 - Railway sleeper type hard wooden beam end working - involves driving in metal ring between cuts, to prevent longitudinal cracks - Google Patents

Railway sleeper type hard wooden beam end working - involves driving in metal ring between cuts, to prevent longitudinal cracks

Info

Publication number
FR2446158A1
FR2446158A1 FR7900782A FR7900782A FR2446158A1 FR 2446158 A1 FR2446158 A1 FR 2446158A1 FR 7900782 A FR7900782 A FR 7900782A FR 7900782 A FR7900782 A FR 7900782A FR 2446158 A1 FR2446158 A1 FR 2446158A1
Authority
FR
France
Prior art keywords
cuts
metal ring
beam end
type hard
prevent longitudinal
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.)
Granted
Application number
FR7900782A
Other languages
French (fr)
Other versions
FR2446158B1 (en
Inventor
Guglielmo Giordano
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.)
NORD LEGNAMI SpA
Original Assignee
NORD LEGNAMI SpA
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
Priority to DE19792900727 priority Critical patent/DE2900727A1/en
Application filed by NORD LEGNAMI SpA filed Critical NORD LEGNAMI SpA
Priority to FR7900782A priority patent/FR2446158A1/en
Publication of FR2446158A1 publication Critical patent/FR2446158A1/en
Application granted granted Critical
Publication of FR2446158B1 publication Critical patent/FR2446158B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
    • B27M1/00—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching
    • B27M1/02—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching by compressing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
    • B27M3/00—Manufacture or reconditioning of specific semi-finished or finished articles
    • B27M3/14—Manufacture or reconditioning of specific semi-finished or finished articles of railroad sleepers

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Rod-Shaped Construction Members (AREA)

Abstract

The system is used to prevent fissure formation resulting from internal growth stresses and shrinkage effects. It operates by stabilising the end faces of hard timber beams, esp. railway sleepers. One or more inward cuts (12) are made parallel to the shorter side of the rectangular beam (1), and near this side. These penetrate into the wood from the end face, in the grain direction. A metal profile ring (16) is driven into the centre zone bounded by the cuts from the end face. The ring may be rectangular, with cuts close together outside its shorter sides.
FR7900782A 1979-01-10 1979-01-12 Railway sleeper type hard wooden beam end working - involves driving in metal ring between cuts, to prevent longitudinal cracks Granted FR2446158A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE19792900727 DE2900727A1 (en) 1979-01-10 1979-01-10 METHOD FOR PROCESSING THE FRONT SIDES OF BARS IN HARD WOOD, ESPECIALLY RAILWAY SLEEPERS, WITH RECTANGULAR CROSS-SECTION TO PREVENT THE FORMATION OF CRACKS BASED ON INNER TENSIONS AND BASED ON THE DROPPING OF THE TROC
FR7900782A FR2446158A1 (en) 1979-01-10 1979-01-12 Railway sleeper type hard wooden beam end working - involves driving in metal ring between cuts, to prevent longitudinal cracks

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19792900727 DE2900727A1 (en) 1979-01-10 1979-01-10 METHOD FOR PROCESSING THE FRONT SIDES OF BARS IN HARD WOOD, ESPECIALLY RAILWAY SLEEPERS, WITH RECTANGULAR CROSS-SECTION TO PREVENT THE FORMATION OF CRACKS BASED ON INNER TENSIONS AND BASED ON THE DROPPING OF THE TROC
FR7900782A FR2446158A1 (en) 1979-01-10 1979-01-12 Railway sleeper type hard wooden beam end working - involves driving in metal ring between cuts, to prevent longitudinal cracks

Publications (2)

Publication Number Publication Date
FR2446158A1 true FR2446158A1 (en) 1980-08-08
FR2446158B1 FR2446158B1 (en) 1984-11-16

Family

ID=25777354

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7900782A Granted FR2446158A1 (en) 1979-01-10 1979-01-12 Railway sleeper type hard wooden beam end working - involves driving in metal ring between cuts, to prevent longitudinal cracks

Country Status (2)

Country Link
DE (1) DE2900727A1 (en)
FR (1) FR2446158A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1208255A (en) * 1915-01-22 1916-12-12 William Erastus Williams Antisplit device for wood railway-ties.
US2273507A (en) * 1940-06-14 1942-02-17 Raymond E Beegle Antisplitting device
US2273508A (en) * 1940-06-14 1942-02-17 Raymond E Beegle Antisplitting iron
FR967266A (en) * 1948-05-26 1950-10-30 Metallurg De L Escaut Soc New method of shrinking railway sleepers in finishing sites and machine for its implementation

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1208255A (en) * 1915-01-22 1916-12-12 William Erastus Williams Antisplit device for wood railway-ties.
US2273507A (en) * 1940-06-14 1942-02-17 Raymond E Beegle Antisplitting device
US2273508A (en) * 1940-06-14 1942-02-17 Raymond E Beegle Antisplitting iron
FR967266A (en) * 1948-05-26 1950-10-30 Metallurg De L Escaut Soc New method of shrinking railway sleepers in finishing sites and machine for its implementation

Also Published As

Publication number Publication date
FR2446158B1 (en) 1984-11-16
DE2900727A1 (en) 1980-07-24

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse