FR512839A - Marteaux à chute libre - Google Patents

Marteaux à chute libre

Info

Publication number
FR512839A
FR512839A FR512839A FR512839DA FR512839A FR 512839 A FR512839 A FR 512839A FR 512839 A FR512839 A FR 512839A FR 512839D A FR512839D A FR 512839DA FR 512839 A FR512839 A FR 512839A
Authority
FR
France
Prior art keywords
hammers
free fall
fall
free
fall hammers
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
FR512839A
Other languages
English (en)
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.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
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 Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR512839A publication Critical patent/FR512839A/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
    • B21J7/20—Drives for hammers; Transmission means therefor
    • B21J7/36—Drives for hammers; Transmission means therefor for drop hammers
    • B21J7/42—Drives for hammers; Transmission means therefor for drop hammers operated by rotary drive, e.g. electric motors

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
FR512839A 1919-01-31 1920-03-31 Marteaux à chute libre Expired FR512839A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US274273A US1393501A (en) 1919-01-31 1919-01-31 Drop-hammer

Publications (1)

Publication Number Publication Date
FR512839A true FR512839A (fr) 1921-02-01

Family

ID=23047536

Family Applications (1)

Application Number Title Priority Date Filing Date
FR512839A Expired FR512839A (fr) 1919-01-31 1920-03-31 Marteaux à chute libre

Country Status (2)

Country Link
US (1) US1393501A (fr)
FR (1) FR512839A (fr)

Also Published As

Publication number Publication date
US1393501A (en) 1921-10-11

Similar Documents

Publication Publication Date Title
FR551263A (fr) Turbine à explosions
FR512839A (fr) Marteaux à chute libre
FR501361A (fr) Perforatrice à main
FR499443A (fr) Clé à écrous
FR547877A (fr) Turbine à explosion
FR514376A (fr) Machine à maconner
FR550353A (fr) Turbine à explosion
FR531899A (fr) Turbine à explosions à auto-compression
FR521558A (fr) Perforatrice à percussion
FR515672A (fr) Machine à marteler
FR504785A (fr) Machine à poinconner
FR531078A (fr) Séparateur magnétique à chute libre
FR527443A (fr) Allumeur à ferro-cérium
CH82635A (fr) Pontence à frapper
CH83249A (de) Stockmeißel
FR521915A (fr) Machines à explosion
FR504722A (fr) Poinconneuse à main à combinaisons
FR561039A (fr) Turbine à explosions
FR528731A (fr) Turbine à explosion
FR496774A (fr) Machine à additionner
FR532105A (fr) Métier à tisser à main
FR540614A (fr) Turbine à explosion
FR27721E (fr) Pilon à contrepoids
FR24912E (fr) Pilon à contrepoids
FR508004A (fr) Pilon à contrepoids