Title:
THREADING DIE
Document Type and Number:
WIPO Patent Application WO/1989/007027
Kind Code:
A1
Abstract:
The proposed threading die comprises thread-cutting combs mounted by their mating parts in the mating recesses of the casing and provided with cutting edges (9) having a thread (11). The mating parts of the combs (2) are shaped as the surfaces (14, 15) of a cylinder (12) and of a polyhedron (13), whereas the mating recesses of the casing consist of two, cylindrical and polyhedral, coaxial openings, the number of facets of the polyhedron (13) and the number of the cutting edges (9) of the comb (2) being equal to the number of combs (2) in the threading die.
Inventors:
SVININ PETR ALEXEEVICH (SU)
KOCHETOV VLADIMIR EFIMOVICH (SU)
KOCHETOV VLADIMIR EFIMOVICH (SU)
Application Number:
PCT/SU1988/000026
Publication Date:
August 10, 1989
Filing Date:
February 03, 1988
Export Citation:
Assignee:
SVININ PETR ALEXEEVICH (SU)
KOCHETOV VLADIMIR EFIMOVICH (SU)
KOCHETOV VLADIMIR EFIMOVICH (SU)
International Classes:
B23G5/00; B23G5/08; (IPC1-7): B23G5/08
Foreign References:
| SU1049208A1 | 1983-10-23 | |||
| SU903002A1 | 1982-02-07 | |||
| US3775792A | 1973-12-04 |
Other References:
See also references of EP 0363483A4
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