GB2433912B - A keyway former - Google Patents

A keyway former

Info

Publication number
GB2433912B
GB2433912B GB0519776A GB0519776A GB2433912B GB 2433912 B GB2433912 B GB 2433912B GB 0519776 A GB0519776 A GB 0519776A GB 0519776 A GB0519776 A GB 0519776A GB 2433912 B GB2433912 B GB 2433912B
Authority
GB
United Kingdom
Prior art keywords
keyway former
keyway
former
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 - Fee Related
Application number
GB0519776A
Other versions
GB2433912A (en
GB0519776D0 (en
Inventor
Peter Dew
Marc Clement
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.)
Laing Orourke PLC
Original Assignee
Laing Orourke PLC
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 Laing Orourke PLC filed Critical Laing Orourke PLC
Priority to GB0519776A priority Critical patent/GB2433912B/en
Publication of GB0519776D0 publication Critical patent/GB0519776D0/en
Publication of GB2433912A publication Critical patent/GB2433912A/en
Application granted granted Critical
Publication of GB2433912B publication Critical patent/GB2433912B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
    • B28B11/08—Apparatus or processes for treating or working the shaped or preshaped articles for reshaping the surface, e.g. smoothing, roughening, corrugating, making screw-threads
    • B28B11/0863—Apparatus or processes for treating or working the shaped or preshaped articles for reshaping the surface, e.g. smoothing, roughening, corrugating, making screw-threads for profiling, e.g. making grooves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/02—Moulds with adjustable parts specially for modifying at will the dimensions or form of the moulded article
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/06—Moulds with flexible parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/16—Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes
    • B28B7/162—Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes for building blocks or similar block-shaped articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/20—Moulds for making shaped articles with undercut recesses, e.g. dovetails
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C11/00—Details of pavings
    • E01C11/02—Arrangement or construction of joints; Methods of making joints; Packing for joints
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C11/00—Details of pavings
    • E01C11/02—Arrangement or construction of joints; Methods of making joints; Packing for joints
    • E01C11/04—Arrangement or construction of joints; Methods of making joints; Packing for joints for cement concrete paving
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C11/00—Details of pavings
    • E01C11/02—Arrangement or construction of joints; Methods of making joints; Packing for joints
    • E01C11/04—Arrangement or construction of joints; Methods of making joints; Packing for joints for cement concrete paving
    • E01C11/06—Methods of making joints
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Road Paving Machines (AREA)
  • Road Paving Structures (AREA)
GB0519776A 2005-09-28 2005-09-28 A keyway former Expired - Fee Related GB2433912B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0519776A GB2433912B (en) 2005-09-28 2005-09-28 A keyway former

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0519776A GB2433912B (en) 2005-09-28 2005-09-28 A keyway former

Publications (3)

Publication Number Publication Date
GB0519776D0 GB0519776D0 (en) 2005-11-09
GB2433912A GB2433912A (en) 2007-07-11
GB2433912B true GB2433912B (en) 2010-12-22

Family

ID=35394916

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0519776A Expired - Fee Related GB2433912B (en) 2005-09-28 2005-09-28 A keyway former

Country Status (1)

Country Link
GB (1) GB2433912B (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3781154A (en) * 1971-07-02 1973-12-25 Spiroll Corp Ltd Device for forming shear keyways on sides of extruded slabs and the like
US4022556A (en) * 1975-04-30 1977-05-10 The George Hyman Construction Company Concrete slab extruder having a free flight auger
US4125348A (en) * 1976-07-09 1978-11-14 Spiroll Corporation Ltd. Slip former with keyway forming assemblies
US4133619A (en) * 1976-09-10 1979-01-09 The Flexicore Co., Inc. Extrusion casting apparatus
DE3029708A1 (en) * 1978-07-22 1982-11-04 Hans Veit 8602 Schlüsselfeld Dennert Concrete slab mould table - has end recesses in transverse walls unsymmetrical in relation to central plane

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3781154A (en) * 1971-07-02 1973-12-25 Spiroll Corp Ltd Device for forming shear keyways on sides of extruded slabs and the like
US4022556A (en) * 1975-04-30 1977-05-10 The George Hyman Construction Company Concrete slab extruder having a free flight auger
US4125348A (en) * 1976-07-09 1978-11-14 Spiroll Corporation Ltd. Slip former with keyway forming assemblies
US4133619A (en) * 1976-09-10 1979-01-09 The Flexicore Co., Inc. Extrusion casting apparatus
DE3029708A1 (en) * 1978-07-22 1982-11-04 Hans Veit 8602 Schlüsselfeld Dennert Concrete slab mould table - has end recesses in transverse walls unsymmetrical in relation to central plane

Also Published As

Publication number Publication date
GB2433912A (en) 2007-07-11
GB0519776D0 (en) 2005-11-09

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Legal Events

Date Code Title Description
710B Request of alter time limits

Free format text: EXTENSION APPLICATION: APPLICATION FOR EXTENSION OF THE PERIOD(S) PRESCRIBED BY RULE(S) 15(1) FILED ON 20070405

PCNP Patent ceased through non-payment of renewal fee

Effective date: 20160928