GB505720A - Improvements in method of manufacturing hollow valves - Google Patents

Improvements in method of manufacturing hollow valves

Info

Publication number
GB505720A
GB505720A GB13958/38A GB1395838A GB505720A GB 505720 A GB505720 A GB 505720A GB 13958/38 A GB13958/38 A GB 13958/38A GB 1395838 A GB1395838 A GB 1395838A GB 505720 A GB505720 A GB 505720A
Authority
GB
United Kingdom
Prior art keywords
forging
manufacturing hollow
hollow valves
hollow
valves
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
GB13958/38A
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.)
E DERVAUX ETS
Original Assignee
E DERVAUX ETS
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 E DERVAUX ETS filed Critical E DERVAUX ETS
Publication of GB505720A publication Critical patent/GB505720A/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)
  • Forging (AREA)

Abstract

505,720. Making internal-combustion engine valves. ETABLISSEMENTS E. DERVAUX SOC. ANON. May 10, 1938, No. 13958. Convention date, May 10, 1937. [Class 83 (iii)] In the manufacture of hollow valve, such as is shown in section in Fig. 5, a solid bar is first shaped at its end by forging a rough head 1, Fig. 3, whereupon a hollow 3 is inachined in the interior to enable the correct curvatures to be obtained by cutting at A; r and R, after which the neck is constricted by forging and the shank drawn out by forging.
GB13958/38A 1937-05-10 1938-05-10 Improvements in method of manufacturing hollow valves Expired GB505720A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR505720X 1937-05-10

Publications (1)

Publication Number Publication Date
GB505720A true GB505720A (en) 1939-05-16

Family

ID=8908671

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13958/38A Expired GB505720A (en) 1937-05-10 1938-05-10 Improvements in method of manufacturing hollow valves

Country Status (1)

Country Link
GB (1) GB505720A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE879799C (en) * 1941-09-17 1953-06-15 Mecc Zanzi Soc Off Process in the manufacture of hollow valves
US11215091B2 (en) 2014-08-27 2022-01-04 Fuji Hollow Valve Inc. Hollow engine valve and manufacturing method therefor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE879799C (en) * 1941-09-17 1953-06-15 Mecc Zanzi Soc Off Process in the manufacture of hollow valves
US11215091B2 (en) 2014-08-27 2022-01-04 Fuji Hollow Valve Inc. Hollow engine valve and manufacturing method therefor
DE112015003874B4 (en) 2014-08-27 2023-11-23 Fuji Oozx Inc. Hollow engine valve and method of making same

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