Cutting by use of rotating axially moving tool – Tool or tool with support – With pitch-stabilizing ridge
Patent
1994-05-03
1996-01-02
Bishop, Steven C.
Cutting by use of rotating axially moving tool
Tool or tool with support
With pitch-stabilizing ridge
408233, 408713, 470200, B23G 514
Patent
active
054802725
ABSTRACT:
A thread cutting tool which can be configured to cut threads in a variety of bore sizes using universal thread cutting chasers mounted in select radial extension such as by using variable length tool blocks which are themselves interfit within retaining slots in the head portion of the tool, or by providing alternate radial position notches an the head portion for mounting the cutting chasers. By using variable tool blocks mounted to the head portion of the tool, universal thread cutting chasers having a preselected thread pitch can be utilized for multiple bore sizes, thus saving the expense of providing chasers or head portions corresponding to each bore size. Alternately, by providing alternate radial position notches in the head portion for mounting the cutting chasers, a single tool can be used for different bore sizes, such as for undertaking a start thread cut in a bore and then undertaking a finish thread cut in the pre-cut bore using an alternate radial position for the chasers.
REFERENCES:
patent: 171795 (1876-01-01), Grant
patent: 2227281 (1940-12-01), Smith
patent: 2864102 (1958-12-01), Budnick
patent: 3812547 (1974-05-01), Reich
patent: 4531863 (1985-07-01), Smith
patent: 5112162 (1992-05-01), Hartford et al.
Jorgensen Glenn F.
Kelly Michael W.
Bishop Steven C.
JNT Technical Services Inc.
Power House Tool Inc.
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