Pipe weld crown removal device

Patent · Wed Jan 01 00:00:00 EST 1992

OSTI ID:868547

Sword, Charles K ^[1]; Sette, Primo J ^[2]

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1. Pleasant Hills, PA
2. West Newton, PA

A device is provided for grinding down the crown of a pipe weld joining aligned pipe sections so that the weld is substantially flush with the pipe sections joined by the weld. The device includes a cage assembly comprising a pair of spaced cage rings adapted to be mounted for rotation on the respective pipe sections on opposite sides of the weld, a plurality of grinding wheels, supported by the cage assembly for grinding down the crown of the weld, and a plurality of support shafts, each extending longitudinally along the joined pipe sections, parallel thereto, for individually mounting respective grinding wheels. Each end of the support shafts is mounted for rotation in a bearing assembly housed within a radially directed opening in a corresponding one of the cage rings so as to provide radial movement of the associated shaft, and thus of the associated grinding wheel, towards and away from the weld. A first drive sprocket provides rotation of the cage assembly around the pipe sections while a second drive unit, driven by a common motor, provides rotation of the grinding wheels.

• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 5165206
• OSTI ID: 868547
• Country of Publication: United States
• Language: English

Related Subjects

pipe
weld
crown
removal
device
provided
grinding
joining
aligned
sections
substantially
flush
joined
cage
assembly
comprising
pair
spaced
rings
adapted
mounted
rotation
respective
opposite
plurality
wheels
supported
support
shafts
extending
longitudinally
parallel
thereto
individually
mounting
bearing
housed
radially
directed
corresponding
provide
radial
movement
associated
shaft
wheel
towards
drive
sprocket
provides
unit
driven
common
motor
radial movement
pipe sections
bearing assembly
grinding wheels
support shaft
extending longitudinally
assembly comprising
drive unit
removal device
radially directed
grinding wheel
sections joined
provide radial
pipe weld
/451/29/409/