FR664394A - Marteaux à ressort - Google Patents

Marteaux à ressort

Info

Publication number
FR664394A
FR664394A FR664394DA FR664394A FR 664394 A FR664394 A FR 664394A FR 664394D A FR664394D A FR 664394DA FR 664394 A FR664394 A FR 664394A
Authority
FR
France
Prior art keywords
spring hammers
hammers
spring
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
Other languages
English (en)
Inventor
Jacques-Louis Coopman
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 filed Critical
Application granted granted Critical
Publication of FR664394A publication Critical patent/FR664394A/fr
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J7/00—Hammers; Forging machines with hammers or die jaws acting by impact
    • B21J7/02—Special design or construction
    • B21J7/10—Special design or construction with both drive and hammer connected to a fulcrumed lever, e.g. tail hammers
    • B21J7/12—Special design or construction with both drive and hammer connected to a fulcrumed lever, e.g. tail hammers the lever being a spring, i.e. spring hammers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR664394D 1928-11-21 1928-11-21 Marteaux à ressort Expired FR664394A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR664394T 1928-11-21

Publications (1)

Publication Number Publication Date
FR664394A true FR664394A (fr) 1929-09-02

Family

ID=9012638

Family Applications (1)

Application Number Title Priority Date Filing Date
FR664394D Expired FR664394A (fr) 1928-11-21 1928-11-21 Marteaux à ressort

Country Status (1)

Country Link
FR (1) FR664394A (fr)

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