GB2010152A - Improvements in and relating to the manufacture of frogs for rail equipment - Google Patents

Improvements in and relating to the manufacture of frogs for rail equipment

Info

Publication number
GB2010152A
GB2010152A GB7847073A GB7847073A GB2010152A GB 2010152 A GB2010152 A GB 2010152A GB 7847073 A GB7847073 A GB 7847073A GB 7847073 A GB7847073 A GB 7847073A GB 2010152 A GB2010152 A GB 2010152A
Authority
GB
United Kingdom
Prior art keywords
frog
recesses
impressions
defining
plates
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
GB7847073A
Other versions
GB2010152B (en
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.)
Creusot Loire SA
Original Assignee
Creusot Loire SA
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 Creusot Loire SA filed Critical Creusot Loire SA
Publication of GB2010152A publication Critical patent/GB2010152A/en
Application granted granted Critical
Publication of GB2010152B publication Critical patent/GB2010152B/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C7/00—Patterns; Manufacture thereof so far as not provided for in other classes
    • B22C7/005—Adjustable, sectional, expandable or flexible patterns

Abstract

In the foundry casting of a rail frog having lower recesses, a mould cavity for the metal frog is formed by two impressions formed in moulding sand in bottom and top moulds 24, 25, the impressions defining the external shape of the frog and the internal shape of the recesses therein. The impressions are both formed using a pattern 20 whose opposite faces reproduce simultaneously the external shape of the frog and the recesses in the frog. The pattern 20 may include detachable parts for defining recesses for fish-plates at the ends of the branches of the frog for connection to rails and detachable plates for defining base plates spanning the recesses for support of the frog on sleepers. <IMAGE>
GB7847073A 1977-12-14 1978-12-04 Manufacture of frogs for rail equipment Expired GB2010152B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7737618A FR2411654A1 (en) 1977-12-14 1977-12-14 MODEL FOR MOLDING TRACK HEARTS, AND MOLDING METHOD USING SUCH A MODEL

Publications (2)

Publication Number Publication Date
GB2010152A true GB2010152A (en) 1979-06-27
GB2010152B GB2010152B (en) 1982-02-24

Family

ID=9198825

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7847073A Expired GB2010152B (en) 1977-12-14 1978-12-04 Manufacture of frogs for rail equipment

Country Status (7)

Country Link
BE (1) BE872766A (en)
CH (1) CH626548A5 (en)
DE (2) DE2853837A1 (en)
ES (1) ES475360A1 (en)
FR (1) FR2411654A1 (en)
GB (1) GB2010152B (en)
IT (1) IT1109639B (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1312591A (en) * 1961-11-09 1962-12-21 Creusot Forges Ateliers Right cross heart

Also Published As

Publication number Publication date
FR2411654B1 (en) 1983-02-18
CH626548A5 (en) 1981-11-30
IT1109639B (en) 1985-12-23
GB2010152B (en) 1982-02-24
DE2853837A1 (en) 1979-06-21
DE7836948U1 (en) 1980-10-16
IT7869678A0 (en) 1978-11-23
ES475360A1 (en) 1979-04-01
FR2411654A1 (en) 1979-07-13
BE872766A (en) 1979-06-14

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee