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Machine translation
1. (WO1982000171) A DRILL STEEL GUIDING AND CENTRALIZING MECHANISM
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1982/000171    International Application No.:    PCT/FI1981/000045
Publication Date: 21.01.1982 International Filing Date: 12.06.1981
IPC:
E21B 19/24 (2006.01)
Applicants: OY TAMPELLA AB (For All Designated States Except US).
LEPPÄLÄ, Matti; (For US Only)
Inventors: LEPPÄLÄ, Matti;
Priority Data:
Title (EN) A DRILL STEEL GUIDING AND CENTRALIZING MECHANISM
(FR) MECANISME DE CENTRAGE ET DE GUIDAGE D'UN FORET EN ACIER
Abstract: front page image
(EN)A drill steel guiding and centralizing mechanism comprising a body (14) and a first and second jaw (1 and 6) connected to other ends of two-armed angled levers (2, 3 and 7, 8). The angled levers are turnably connected to the body (14) by joints (4 and 9) at the corner points between the arms (2 and 3; 7 and 8). The ends of the free arms (3 and 8) of the angled levers are connected to each other by a connecting road (11), the ends of which are connected to the ends of the arms (3 and 8) by swivel joints (12 and 13). The second angled lever (2, 3) has an extension (16) which is affected by the power mechanism (15) substantially parallelly to the connecting rod (11). Thereby the jaws (1 and 6) can be opened and closed by the power mechanism (15) exactly centralized in relation to the drill steel.
(FR)Mecanisme de centrage et de guidage d'un foret en acier comprenant un corps (14) et une premiere et une seconde machoires (1 et 6) assujetties aux extremites de deux leviers coudes (2, 3 et 7, 8). Les leviers coudes sont relies de maniere rotative au corps (14) a l'aide d'articulation (4 et 9) aux coudes entre les bras (2 et 3; 7 et 8). Les extremites des bras libres (3 et 8) des leviers coudes sont connectees l'une a l'autre par une tige de connexion (11), dont les extremites sont liees aux extremites des bras (3 et 8) par des rotules (12 et 13). Le second levier coude (2, 3) possede une extension (16) sur laquelle agit le mecanisme d'actionnement (15) sensiblement parallelement a la tige de connexion (11). Ainsi, les machoires (1 et 6) peuvent etre ouvertes et fermees par le mecanisme d'actionnement (15) de maniere centree exactement par rapport au foret en acier.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)