Locking means for an insert
AssigneeOystein Hagen
InventorØystein Hagen
Life of this patent
Estimating the term…
Abstract
Locking bracket for a slider in a dovetail slot (3), where a further dovetail slot (4) is arranged perpendicularly to the first dovetail slot (3), in which a locking bracket (5) can be displaced from a position whereby the glider is locked by the locking bracket (5) to a position where the glider is free to be moved passed the locking bracket (5) and that a screw (6) captures the locking bracket (5) through a countersunk hole in the locking bracket (5), whereby the locking bracket is maintained or released by loosening the screw (6).
Claims4
A locking arrangement in combination with a clamping jaw used to clamp drill pipes and casings, comprising:
- a slider (2) that extends axially in the clamping jaw in a first dovetail slot (3), the slider (2) having teeth (10) thereon for gripping drill pipes or casings, a second dovetail slot (4) oriented perpendicularly to the first dovetail slot (3);
- a locking bracket (5) in the second dovetail slot (4) and being movable from a position in which the slider is locked by the locking bracket (5) to a position wherein the slider is unlocked, and a screw (6) disposed through a countersunk hole (9) in the locking bracket (5), whereby the locking bracket (5) is maintained to lock the slider (2) by the screw (6) or released from locking the slider (2) by axially sliding in the second dovetail slot (4) upon loosening the screw (6).
Dependencies are inferred from the claim text.