GB456028A - Method of stamping hollow-valves in a single piece - Google Patents

Method of stamping hollow-valves in a single piece

Info

Publication number
GB456028A
GB456028A GB2716235A GB2716235A GB456028A GB 456028 A GB456028 A GB 456028A GB 2716235 A GB2716235 A GB 2716235A GB 2716235 A GB2716235 A GB 2716235A GB 456028 A GB456028 A GB 456028A
Authority
GB
United Kingdom
Prior art keywords
cavity
single piece
filling
valves
stamping hollow
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
GB2716235A
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 GB2716235A priority Critical patent/GB456028A/en
Publication of GB456028A publication Critical patent/GB456028A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/20—Making machine elements valve parts
    • B21K1/22—Making machine elements valve parts poppet valves, e.g. for internal-combustion engines

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Multiple-Way Valves (AREA)

Abstract

456,028. Making valves. RAVERA, E., 5, Via S. Lorenzo, Ivrea, Aosta, Italy. Oct. 2, 1935, No. 27162. [Classes 83 (ii) and 83 (iv)] Fillings.-A mushroom valve is made by piercing a cavity f, Fig. 1, in a single piece by metal, filling the head end only of the cavity with calcium carbide c, closing up the outer length of the cavity to a smaller diameter flattening the end c<1> to form the valve head, drilling a bore f to enable the filling to be removed, e.g. by immersion in water and then filling up the cavity with a heat-conducting material.
GB2716235A 1935-10-02 1935-10-02 Method of stamping hollow-valves in a single piece Expired GB456028A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2716235A GB456028A (en) 1935-10-02 1935-10-02 Method of stamping hollow-valves in a single piece

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2716235A GB456028A (en) 1935-10-02 1935-10-02 Method of stamping hollow-valves in a single piece

Publications (1)

Publication Number Publication Date
GB456028A true GB456028A (en) 1936-11-02

Family

ID=10255202

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2716235A Expired GB456028A (en) 1935-10-02 1935-10-02 Method of stamping hollow-valves in a single piece

Country Status (1)

Country Link
GB (1) GB456028A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2538239A (en) * 2015-05-11 2016-11-16 Eaton Srl Method for producing a poppet valve, in particular a hollow head valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2538239A (en) * 2015-05-11 2016-11-16 Eaton Srl Method for producing a poppet valve, in particular a hollow head valve

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