FR715145A - Foret, destiné plus particulièrement à des machines à forer des roches - Google Patents

Foret, destiné plus particulièrement à des machines à forer des roches

Info

Publication number
FR715145A
FR715145A FR715145DA FR715145A FR 715145 A FR715145 A FR 715145A FR 715145D A FR715145D A FR 715145DA FR 715145 A FR715145 A FR 715145A
Authority
FR
France
Prior art keywords
drill
rock drilling
particularly intended
drilling machines
machines
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)
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.)
Krupp Stahl AG
Fried Krupp AG
Original Assignee
Krupp Stahl AG
Fried Krupp AG
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 Krupp Stahl AG, Fried Krupp AG filed Critical Krupp Stahl AG
Application granted granted Critical
Publication of FR715145A publication Critical patent/FR715145A/fr
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/54—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of the rotary drag type, e.g. fork-type bits

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
FR715145D 1930-05-15 1931-04-13 Foret, destiné plus particulièrement à des machines à forer des roches Expired FR715145A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE715145X 1930-05-15

Publications (1)

Publication Number Publication Date
FR715145A true FR715145A (fr) 1931-11-26

Family

ID=6626138

Family Applications (1)

Application Number Title Priority Date Filing Date
FR715145D Expired FR715145A (fr) 1930-05-15 1931-04-13 Foret, destiné plus particulièrement à des machines à forer des roches

Country Status (1)

Country Link
FR (1) FR715145A (fr)

Similar Documents

Publication Publication Date Title
FR715145A (fr) Foret, destiné plus particulièrement à des machines à forer des roches
FR601061A (fr) Outil à forer
FR870106A (fr) Foret de perforatrice pour forer des roches dures
FR30157E (fr) Casse-mèche électro-magnétique
FR812340A (fr) Machine à affûter les mèches de forets
FR574599A (fr) Outil foreur
FR590677A (fr) Casse-mèche électro-magnétique
FR683956A (fr) Foret de perforatrice pour roche
FR625459A (fr) Mèche à façonner des cylindres
CH145370A (de) Bohrwerkzeug, auch als Bohrlöffel verwendbar.
FR650698A (fr) Foret, plus particulièrement destiné à la perforation des dalles
ES127205A3 (es) Corona de perforación rotatoria.
FR742244A (fr) Foret à mèche amovible
CA276361A (fr) Meche de foreuse a roc
CA276360A (fr) Meche de foreuse a roc
CA255453A (fr) Meche de perforatrice de roc
CA273009A (fr) Perforatrice a roc a percussion
CA273008A (fr) Perforatrice a roc a percussion
FR683074A (fr) Trépan de perforatrice
FR567773A (fr) Foret à centrer perfectionné
FR676069A (fr) Trépan à perforer les roches
FR687261A (fr) Fleuret pour perforatrices à percussion
CH138263A (de) Einrichtung an Gesteinsbohrmaschinen zum Absaugen des Bohrstaubes mittelst Hohlbohrers.
ES108982A3 (es) Perfeccionamientos en brocas.
FR694825A (fr) Perfectionnements aux perforatrices de roches