GB899129A - Improvements relating to pedal cycle components, particularly cycle fork crowns, and to their method of manufacture - Google Patents

Improvements relating to pedal cycle components, particularly cycle fork crowns, and to their method of manufacture

Info

Publication number
GB899129A
GB899129A GB428961A GB428961A GB899129A GB 899129 A GB899129 A GB 899129A GB 428961 A GB428961 A GB 428961A GB 428961 A GB428961 A GB 428961A GB 899129 A GB899129 A GB 899129A
Authority
GB
United Kingdom
Prior art keywords
cycle
crown
manufacture
improvements relating
pedal
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
GB428961A
Inventor
Donald William Haden
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.)
HADEN BROS Ltd
Original Assignee
HADEN BROS Ltd
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 HADEN BROS Ltd filed Critical HADEN BROS Ltd
Priority to GB428961A priority Critical patent/GB899129A/en
Publication of GB899129A publication Critical patent/GB899129A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/86—Making other particular articles other parts for bicycles or motorcycles

Abstract

899,129. Making cycle parts; stamping. HADEN BROS. Ltd. Feb. 4, 1961, No. 4289/61. Classes 83 (2) and 83 (4). The radiused edges of a cycle fork crown are formed as square cut corners by the method of placing the crown between two dies and upsetting the metal of the crown into the corners of one die. One die comprises blocks 11, 13 and 16, a sharp corner being formed at 15, and the ram-operated block 16 including an ejector 17. A block 7 forms the lower die, the finished crown 1 with square cut corners 5 being shown in Fig. 6.
GB428961A 1961-02-04 1961-02-04 Improvements relating to pedal cycle components, particularly cycle fork crowns, and to their method of manufacture Expired GB899129A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB428961A GB899129A (en) 1961-02-04 1961-02-04 Improvements relating to pedal cycle components, particularly cycle fork crowns, and to their method of manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB428961A GB899129A (en) 1961-02-04 1961-02-04 Improvements relating to pedal cycle components, particularly cycle fork crowns, and to their method of manufacture

Publications (1)

Publication Number Publication Date
GB899129A true GB899129A (en) 1962-06-20

Family

ID=9774339

Family Applications (1)

Application Number Title Priority Date Filing Date
GB428961A Expired GB899129A (en) 1961-02-04 1961-02-04 Improvements relating to pedal cycle components, particularly cycle fork crowns, and to their method of manufacture

Country Status (1)

Country Link
GB (1) GB899129A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0289437A2 (en) * 1987-04-28 1988-11-02 Guy Levet Method for joining at least two edges of sheet metal, in particular for the production by stamping of a bicycle fork crown, and fork crown obtained by this method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0289437A2 (en) * 1987-04-28 1988-11-02 Guy Levet Method for joining at least two edges of sheet metal, in particular for the production by stamping of a bicycle fork crown, and fork crown obtained by this method
EP0289437A3 (en) * 1987-04-28 1990-07-18 Guy Levet Method for joining at least two edges of sheet metal, in particular for the production by stamping of a bicycle fork crown, and fork crown obtained by this method

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