E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
294/13
E21B 19/16 (2006.01)
Patent
CA 1318931
Abstract A gripping and rotating tong device for handling drill rods, drill bits and other corresponding, at least partially rod- like pieces. The tong device comprises and housing (11) fastened to a movable transfer device, the housing having an axial hole and a radial aperture (18) for taking the piece to be handled from out- side the housing to inside it, and in the housing it has gripping means which grip the workpiece introduced into the hous- ing, and parts for rotating the gripping means. The gripping means include at least two locking ring gears (1, 2) which rest in bearings rotatably in relation to the housing, at least one of them having cogging on the outer periphery and each having a notch (17, 16) extending to the center, along which notch the workpiece can pass to the center of the ring gears and away from there. The rotating of the ring gears is effected by at least one gear (3), the workpiece (20) centered with the ring gears (1, 2) rotating to- gether with them. The centering and/or releasing of the workpiece is effected by a limited turning (k) of one ring gear in relation to the other ring gear, produced by the starting, ending or changing of direction of the rotation.
579046
Cassan Maclean
Varis Matti
LandOfFree
Gripping and rotating tong device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Gripping and rotating tong device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gripping and rotating tong device will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1218019