Apparatus for forming grooves in bell-shaped pipes
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United States of America Patent
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Jul 11, 2000
Grant Date -
N/A
app pub date -
Sep 24, 1998
filing date -
Sep 24, 1998
priority date (Note) -
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Abstract
Equipment for machining a bell portion of plastic pipe. The equipment includes a device for clamping the pipe against movement, at least one rotary cutter for cutting at least one groove in the bell portion, and mechanisms for causing at least one rotary cutter to traverse the interior wall of the bell portion. The machining equipment further includes a drill for drilling a hole through the wall of the bell portion substantially tangentially to one of the annular grooves for receiving a flexible spline to interconnect the pipe with a correspondingly grooved second pipe to form a bell and spigot pipe connection.
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