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Patent Searching and Data


Title:
TAP FOR PRESSING OUT THREAD WITH RESILIENT PROFILE
Document Type and Number:
WIPO Patent Application WO/1981/001672
Kind Code:
A1
Abstract:
The tap comprises a groove-forming stage (1) with a shank (2) carrying a thread-forming stage (3) the pitch of projections of which is equal to the pitch of projections of the groove-forming stage (1), whereas the projections of the thread-forming stage (3) are shifted along the axis of the tap in relation to the projections of the groove-forming stage (1). The thread-forming stage (3) is mounted behind the groove-forming stage (1) on the threaded shank (2) movably along the axis of the latter, that movement being limited by a stop (4) fixed on the shank.

Inventors:
SHAMENKO S (SU)
TOROPOV G (SU)
BADYAEV V (SU)
Application Number:
PCT/SU1980/000105
Publication Date:
June 25, 1981
Filing Date:
June 26, 1980
Export Citation:
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Assignee:
DN GORNYJ I IM ARTEMA (SU)
SHAMENKO S (SU)
TOROPOV G (SU)
BADYAEV V (SU)
International Classes:
B21H3/08; B23G5/20; B21H3/10; B23G7/02; (IPC1-7): B21H3/08
Foreign References:
SU625824A11978-09-30
SU468684A11975-04-30
SU584951A11977-12-25
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