Partial hole threading system

Details Partial hole threading system Partial hole threading system

1988-06-07

1989-04-18

Weidenfeld, Gil

Cutting by use of rotating axially moving tool

With radially outer limit of cutting edge moving to define...

10141H, 408 72B, 408 81, 408241B, B23G 148

Patent

active

048222160

ABSTRACT:
Improved apparatus for threading a longitudinally divided partial hole in a machine component has a tap driving spindle selectively and reciprocally carried by a frame. On a base plate is a positioning means for holding the component in a predetermined relationship with the frame and locater means for accurately aligning the component with the tap driving spindle. A movable guide shoe that is operable in combination with the locater means opposes the partial hole to be threaded and forms temporarily an opposed partial hole that accurately guides the tap. Adjustment and retainer means are used for selective positioning of the guide shoe in relation to the tap guide hole.

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patent: 4646413 (1987-03-01), Nall et al.

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