US Patent: 3,709,624 - Torroidal Boring Head


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US Patent: 3,709,624

Torroidal Boring Head

Patentee:

Elmer D. Blank (exact or similar names) - Glendale, Los Angeles County, CA

USPTO Classifications:

408/127, 408/71, 409/136, 409/226

Tool Categories:

metalworking machines : drilling and boring : boring heads

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

Unknown

Patent Dates:
Applied:	Jan. 09, 1973
Granted:	Jan. 09, 1973

Patent Pictures:

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Description:

Abstract:

A machine for accurately machining curved holes comprising a rotatable work supporting table having an axis of rotation and a plane of rotation; a segmented torroidal casing having two ends and support means fixedly mounting said casing in a plane parallel to said plane of rotation with the axis of said torroidal casing coinciding with said axis of rotation; a cutting tool rotatably mounted at an end of said casing and having a diameter larger than the diameter of said casing; drive means within said casing operatively connected to said cutting tool, and means to rotate said table about said axis of rotation. A tool for accurately machining a curved hole comprising a segmented torroidal casing having two ends; a cutting tool having a diameter larger than that of said casing, said cutter rotatably mounted at one of said ends; a drive shaft rotatably mounted at the other of said ends; and a gear train mounted within said casing and operatively connecting said drive shaft to said cutting tool.