Apparatus for forming grooves in bell-shaped pipes

Details Apparatus for forming grooves in bell-shaped pipes Apparatus for forming grooves in bell-shaped pipes

1998-09-24

2000-07-11

Howell, Daniel W.

Gear cutting, milling, or planing

Milling

Including means to infeed rotary cutter toward work

409197, B23C 328

Patent

active

060862971

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.

REFERENCES:
patent: 2268078 (1941-12-01), McCurdy
patent: 3668971 (1972-06-01), Dever
patent: 3985051 (1976-10-01), Brown
patent: 4091514 (1978-05-01), Motes-conners et al.
patent: 4383395 (1983-05-01), Wilger et al.
patent: 4577535 (1986-03-01), Klabunde et al.
patent: 4758121 (1988-07-01), Kwech
patent: 4778316 (1988-10-01), Strait
patent: 5044844 (1991-09-01), Backhouse

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