US Patent: 3,861,010 - Boring Head With Exchangeable Blade


	Home\| FAQ	Search:Advanced\|Person\|Company\| Type\|Class	Login


Quick search:	Patent number:	Patent Date:

US Patent: 3,861,010

Boring Head With Exchangeable Blade

Patentee:

Siegfried Weinreich (exact or similar names) - Bierden, Niedersachsen Region, Lower Saxony Germany

USPTO Classifications:

29/90.01, 407/46, 408/153, 408/199, 408/239R

Tool Categories:

metalworking machines : drilling and boring : boring heads

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

Unknown

Patent Dates:
Applied:	Apr. 24, 1974
Granted:	Jan. 21, 1975

Patent Pictures:

USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens

Description:

Foreign application priority in Germany, 25 Apr., 1973.

Abstract:

This disclosure relates to a boring head having two support ledges and a cutter that may be rotated when the cutting edges become worn so as to provide new cutting edges. The cutter is developed as an irregular hexagon the sides of which form a section of the sides of two equilateral triangles which are superposed on each other around an acute angle. The boring head includes a recess for the cutter having contact surfaces against which at least one of rake surfaces behind the cutting edges will bear so as to fix the cutter in a predetermined operating position in which one of the cutting edges cooperates the the two support ledges to provide centering of the boring head in a bored hole.