FR1235262A - Burin à rouleaux pour forages - Google Patents

Burin à rouleaux pour forages

Info

Publication number
FR1235262A
FR1235262A FR805432A FR805432A FR1235262A FR 1235262 A FR1235262 A FR 1235262A FR 805432 A FR805432 A FR 805432A FR 805432 A FR805432 A FR 805432A FR 1235262 A FR1235262 A FR 1235262A
Authority
FR
France
Prior art keywords
drilling
roller chisel
chisel
roller
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
FR805432A
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.)
Salzgitter Maschinen AG
Original Assignee
Salzgitter Maschinen 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 Salzgitter Maschinen AG filed Critical Salzgitter Maschinen AG
Application granted granted Critical
Publication of FR1235262A publication Critical patent/FR1235262A/fr
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/08—Roller bits
FR805432A 1959-06-27 1959-09-18 Burin à rouleaux pour forages Expired FR1235262A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1235262X 1959-06-27

Publications (1)

Publication Number Publication Date
FR1235262A true FR1235262A (fr) 1960-07-01

Family

ID=7735480

Family Applications (1)

Application Number Title Priority Date Filing Date
FR805432A Expired FR1235262A (fr) 1959-06-27 1959-09-18 Burin à rouleaux pour forages

Country Status (1)

Country Link
FR (1) FR1235262A (fr)

Similar Documents

Publication Publication Date Title
FR1260080A (fr) Trépan à molettes étanche
CH385594A (de) Handbohrmaschine
FR1249079A (fr) Positionneur pour perceuse
FR1324547A (fr) Machine à percer
BE589333A (fr) Fleuret d'élargissement à galets, pour forages
FR1235262A (fr) Burin à rouleaux pour forages
FR1241165A (fr) Trépan à molettes
FR1274017A (fr) Perceuse
BE590996A (fr) Agents antihistaminiques.
CH384019A (de) Vibrationswalze
FR1196490A (fr) Mèche à rouleaux coniques de coupe pour forages profonds
FR1252535A (fr) Fleuret d'élargissement à galets, pour forages
FR1280063A (fr) Trépan à molettes
FR1224211A (fr) Outil de perçage
FR1273460A (fr) Trépan à molettes pour le forage du sol
FR1222311A (fr) Pochoir pour maquillage
FR1228683A (fr) Outil récupérateur à action magnétique pour forages
CH368194A (fr) Machine à imprimer
BE610854A (fr) Vis-foreuse pour tôles
FR1151243A (fr) Machine pour forages horizontaux
FR1276927A (fr) Machine pour le percement de galeries
AT217407B (de) Erweiterungsrollenmeißel
FR1244794A (fr) Machine à écrire
FR1237185A (fr) Machine à cadrer pneumatique
FR1259600A (fr) Canon perforateur pour forages