Cutting by use of rotating axially moving tool – With means to apply transient – fluent medium to work or product – Including tool with duct
Patent
1977-06-27
1978-12-12
Hinson, Harrison L.
Cutting by use of rotating axially moving tool
With means to apply transient, fluent medium to work or product
Including tool with duct
408186, 408204, 408231, 408703, B23B 2710, B23B 5100, B23B 4102
Patent
active
041294017
ABSTRACT:
A hole-forming tool comprising a body adapted for being driven in rotation and including a front portion having an axial bore. A plurality of cutting plates are removably secured to the front face of the front portion of the body for cutting a ring of material from a metal workpiece while leaving a non-cut core in the axial bore. The body carries an ejector in the bore for ejecting the core at the end of the cutting operation. The ejector can be a slidable member which is resiliently urged into the bore and which opposes the core to effect displacement thereof from the workpiece when the tool has completely cut through the workpiece. A system is also provided for axially distributing a lubricating liquid through the bore to the cutting plates.
REFERENCES:
patent: 2184919 (1939-12-01), Miller
patent: 2484150 (1949-10-01), Brown
patent: 3591306 (1971-07-01), Kaser
patent: 3950111 (1976-04-01), Churchwell et al.
Hinson Harrison L.
Manufacture de Vilebrequins de Lorette S.A.
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