GB575236A - Improvements in or relating to the manufacture of valve forgings - Google Patents

Improvements in or relating to the manufacture of valve forgings

Info

Publication number
GB575236A
GB575236A GB442044A GB442044A GB575236A GB 575236 A GB575236 A GB 575236A GB 442044 A GB442044 A GB 442044A GB 442044 A GB442044 A GB 442044A GB 575236 A GB575236 A GB 575236A
Authority
GB
United Kingdom
Prior art keywords
valve
relating
manufacture
forms
forgings
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
GB442044A
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 GB442044A priority Critical patent/GB575236A/en
Publication of GB575236A publication Critical patent/GB575236A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21KMAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00Making machine elements
    • B21K1/20Making machine elements valve parts
    • B21K1/22Making 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)
  • Forging (AREA)

Abstract

575,236. Heating by electricity. ARON, H. March 9, 1944, Nos. 4420 and 6674. [Class 39 (iii)] [Also in Group XXII] In making a valve its enlarged end is heated by passing an electric current through it and reduced by forging. The valve during heating is held by a vice 21 which forms one electrode, and is pressed against an anvil 27. which forms the other, by a hydraulically operated plunger 29.
GB442044A 1944-03-09 1944-03-09 Improvements in or relating to the manufacture of valve forgings Expired GB575236A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB442044A GB575236A (en) 1944-03-09 1944-03-09 Improvements in or relating to the manufacture of valve forgings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB442044A GB575236A (en) 1944-03-09 1944-03-09 Improvements in or relating to the manufacture of valve forgings

Publications (1)

Publication Number Publication Date
GB575236A true GB575236A (en) 1946-02-08

Family

ID=9776847

Family Applications (1)

Application Number Title Priority Date Filing Date
GB442044A Expired GB575236A (en) 1944-03-09 1944-03-09 Improvements in or relating to the manufacture of valve forgings

Country Status (1)

Country Link
GB (1) GB575236A (en)

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