JPS4849815A - - Google Patents

Info

Publication number
JPS4849815A
JPS4849815A JP10327172A JP10327172A JPS4849815A JP S4849815 A JPS4849815 A JP S4849815A JP 10327172 A JP10327172 A JP 10327172A JP 10327172 A JP10327172 A JP 10327172A JP S4849815 A JPS4849815 A JP S4849815A
Authority
JP
Japan
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.)
Pending
Application number
JP10327172A
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 filed Critical
Publication of JPS4849815A publication Critical patent/JPS4849815A/ja
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00Moulds; Cores; Mandrels
    • B28B7/28Cores; Mandrels
    • B28B7/30Cores; Mandrels adjustable, collapsible, or expanding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00Moulds; Cores; Mandrels
    • B28B7/28Cores; Mandrels
    • B28B7/30Cores; Mandrels adjustable, collapsible, or expanding
    • B28B7/303Cores; Mandrels adjustable, collapsible, or expanding specially for making undercut recesses or continuous cavities the inner section of which is superior to the section of either of the mouths

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
  • Sewage (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
JP10327172A 1971-10-19 1972-10-17 Pending JPS4849815A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB4855671 1971-10-19
GB2581472A GB1403985A (en) 1971-10-19 1972-06-02 Apparatus for use in the manufacture of drainage blocks

Publications (1)

Publication Number Publication Date
JPS4849815A true JPS4849815A (ja) 1973-07-13

Family

ID=26257892

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10327172A Pending JPS4849815A (ja) 1971-10-19 1972-10-17

Country Status (9)

Country Link
JP (1) JPS4849815A (ja)
AU (1) AU475606B2 (ja)
CA (1) CA978725A (ja)
DE (1) DE2250641C3 (ja)
ES (1) ES407731A1 (ja)
FR (1) FR2157667A5 (ja)
GB (1) GB1403985A (ja)
IE (1) IE38294B1 (ja)
NL (1) NL171240C (ja)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4950434A (en) * 1985-04-29 1990-08-21 Permaban Southeast, Inc. Arrangement for the production of longitudinal screed slabs consisting of concrete
MY131435A (en) * 1993-06-23 2007-08-30 Khoo Tian A set of parts for use in building, and a method of using same
EP3988268A1 (de) * 2020-10-23 2022-04-27 Georg Weidner Herstellungssystem für baustoff-bauteile mit hohlkammer

Also Published As

Publication number Publication date
IE38294L (en) 1973-04-19
GB1403985A (en) 1975-08-28
NL171240B (nl) 1982-10-01
ES407731A1 (es) 1975-10-16
DE2250641C3 (de) 1979-10-18
AU4770572A (en) 1974-04-26
FR2157667A5 (ja) 1973-06-01
DE2250641B2 (de) 1979-03-01
IE38294B1 (en) 1978-02-15
NL7213932A (ja) 1973-04-25
NL171240C (nl) 1983-03-01
AU475606B2 (en) 1976-08-26
DE2250641A1 (de) 1973-04-26
CA978725A (en) 1975-12-02

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