FR729391A - Atmospheric pressure variation hammer - Google Patents

Atmospheric pressure variation hammer

Info

Publication number
FR729391A
FR729391A FR729391DA FR729391A FR 729391 A FR729391 A FR 729391A FR 729391D A FR729391D A FR 729391DA FR 729391 A FR729391 A FR 729391A
Authority
FR
France
Prior art keywords
atmospheric pressure
pressure variation
hammer
variation hammer
atmospheric
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
French (fr)
Inventor
Charles Schatt
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 FR729391A publication Critical patent/FR729391A/en
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
    • B21J7/20—Drives for hammers; Transmission means therefor
    • B21J7/22—Drives for hammers; Transmission means therefor for power hammers
    • B21J7/24—Drives for hammers; Transmission means therefor for power hammers operated by steam, air, or other gaseous pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR729391D 1931-09-03 1932-01-08 Atmospheric pressure variation hammer Expired FR729391A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE729391X 1931-09-03

Publications (1)

Publication Number Publication Date
FR729391A true FR729391A (en) 1932-07-23

Family

ID=3879110

Family Applications (1)

Application Number Title Priority Date Filing Date
FR729391D Expired FR729391A (en) 1931-09-03 1932-01-08 Atmospheric pressure variation hammer

Country Status (1)

Country Link
FR (1) FR729391A (en)

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