Metal deforming – By use of non-deforming work-gripping clamp and relatively... – Clamp structure constitutes sole initial metal-deforming...
Patent
1991-10-08
1993-07-20
Crane, Daniel C.
Metal deforming
By use of non-deforming work-gripping clamp and relatively...
Clamp structure constitutes sole initial metal-deforming...
72116, 269279, 403 96, B21D 4102
Patent
active
052283232
ABSTRACT:
An improved flaring tool includes the usual plurality of expandable die blocks retained by a U-shaped frame. A clamping screw is treaded through a clamp block which is rotatably mounted between the legs of the frame at its open end. The screw is movable toward and away from the die blocks to clamp or unclamp tubing between adjacent die blocks. A conical flaring tip is movable against the end of a clamped tubing for flaring same. The clamp block's axis of rotation is perpendicular to the direction of movement of the die blocks and the screw. The improvement comprises a facility which locks the clamp block against rotation when the screw is aligned with the die block and their direction of movement. The locking facility prevents unintentional rotation of the clamp block as the screw is rotated to clamp or unclamp the tubing, but may be manually overcome to intentionally rotate the clamp block.
REFERENCES:
patent: 1858849 (1932-05-01), Borden
patent: 2450994 (1948-10-01), Schaefer
patent: 2505666 (1950-04-01), Franck
patent: 2534510 (1950-12-01), Franck
patent: 2843924 (1958-07-01), Franck
patent: 4133519 (1979-01-01), Shin
Dubinsky Miles
Joseph Rinart
Crane Daniel C.
Gilfillan III John G.
The Pullman Company
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