Device for turning the nuts on studs for closing a pressure vess

Details Device for turning the nuts on studs for closing a pressure vess Device for turning the nuts on studs for closing a pressure vess

1979-11-26

1981-06-16

Jones, Jr., James L.

Tools

Wrench, screwdriver, or driver therefor

Machine

B25B 2902

Patent

active

042730112

ABSTRACT:
In a device for turning a nut on one stud or tensioning bolt of many, arranged on a pitch circle, the nut is connected to one half of a positive, torque-transmitting clutch which can be pulled apart in the axial direction. The other half of the clutch is supported on a drive bushing carried on the stud or tensioning bolt, being moveable thereon in the lengthwise direction. The upper end of the drive bushing is connected to a gear which meshes with the pinion of an electric motor mounted on the outside of the support body of the device. When the nut is screwed off of a stud, it is contained in the drive bushing in such a way that no extra elevation is not required.

REFERENCES:
patent: 3877326 (1975-04-01), Kock et al.
patent: 4047456 (1977-09-01), Scholz
patent: 4185504 (1980-01-01), Ethor et al.

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