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1. (WO1979001010) ROLLER CUTTER MOUNT FOR AN EARTH BORING CUTTERHEAD
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1979/001010 International Application No.: PCT/US1979/000266
Publication Date: 29.11.1979 International Filing Date: 26.04.1979
IPC:
E21B 10/10 (2006.01) ,E21B 10/12 (2006.01)
E FIXED CONSTRUCTIONS
21
EARTH OR ROCK DRILLING; MINING
B
EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
10
Drill bits
08
Roller bits
10
with roller axle supported at both ends
E FIXED CONSTRUCTIONS
21
EARTH OR ROCK DRILLING; MINING
B
EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
10
Drill bits
08
Roller bits
12
with disc cutters
Applicants:
Inventors:
Priority Data:
90156101.05.1978US
Title (EN) ROLLER CUTTER MOUNT FOR AN EARTH BORING CUTTERHEAD
(FR) MONTAGE DE ROULEAUX COUPEURS POUR TETE COUPEUSE DE FORAGE
Abstract:
(EN) Roller cutters (RC) are mounted onto a cutterhead (CH) from the rear side of the cutterhead. A load transfer block (40) is insertable between a stator portion (36, 38) of each cutter (CH) and a generally forwardly directed load-carrying surface (32, 34) on the cutterhead frame (10). Loads imposed on the roller cutter (RC) during boring are transmitted rearwardly from the stator (36, 38) to the load transfer block (40), and from the load transfer block (40) to the cutterhead frame (10).
(FR) Des rouleaux coupeurs (RC) sont montes sur une tete coupeuse (CH) a partir de la partie arriere de la tete coupeuse. Un bloc de transfert de charge (40) est introduit entre une partie stator (36, 38) de chaque tete coupeuse (CH) et une surface portante de la charge ayant une direction generale vers l"avant (32, 34) sur la structure de la tete coupeuse (10). Les charges imposees sur le rouleau coupeur (RC) pendant le forage sont transmises vers l"arriere du stator (36, 38) vers le bloc de transfert de charge (40), et du bloc de transfert de charge (40) vers la structure de la tete coupeuse (10).
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
SU01507214