Metal deforming – With means to drive tool – Including screw-actuated tool support
Patent
1992-08-24
1993-04-27
Jones, David
Metal deforming
With means to drive tool
Including screw-actuated tool support
72304, B21D 314
Patent
active
052051501
ABSTRACT:
The prior art teaches agricultural irrigation-pipes extending horizontally along and circularly surrounding a central-axis and provided with a sideward water delivery-opening and adjacently oftentimes being inflicted with inimicable dents that interfere with gating mechanism for the water delivery-opening. Herein disclosed is irrigation-pipe dent-removal tool and method which remove inimicable dents of the irrigation-pipe. The irrigation-pipe dent-removal tool includes a rear-plate confrontably abuttable at the irrigation-pipe inside-surface dents bulging and manually pullable thereagainst with an attached flexible cable, and further includes a front-plate (slidably surrounding the elongate flexible cable) confrontably abuttable at the irrigation-pipe outside-surface, and finally including threaded bolts (or the equivalent) for controllably drawing together the rear-plate and the front-plate to pressurably remove the inimicable dents of the intervening irrigation-pipe.
REFERENCES:
patent: 3977230 (1976-08-01), Jones
patent: 4445264 (1984-05-01), Banerian
patent: 4495687 (1985-01-01), Sieveking
patent: 4519235 (1985-05-01), Gauck
patent: 4761987 (1988-08-01), Gamauf
Jones David
Nimmer George R.
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