Cutting by use of rotating axially moving tool – Processes – Bit detachable
Patent
1977-07-29
1979-03-27
Vlachos, Leonidas
Cutting by use of rotating axially moving tool
Processes
Bit detachable
408 41, 142 1, 144150, 144219, B23B 3500, B23B 3922
Patent
active
041463501
ABSTRACT:
A method and apparatus for forming solid bodies by removing material from solid workpieces. A workpiece is situated between oppositely rotating tools which remove material from the workpiece, these tools having hollow interiors facing each other and each conforming to the configuration of one half of the finished body. The hollow interiors of the tools have teeth for removing material from the workpiece, and while the tools are rotated oppositely the distance therebetween is due so that from the workpiece a body is gradually formed, this body finally becoming almost completely enclosed within the hollow interiors of the tools, whereupon the latter have the distance therebetween increased so that the body formed thereby can be removed. These tools are adapted to form from a workpiece bodies of full circular or ring-shaped configuration, and the hollow interiors of the tools are provided with raised teeth similar to file teeth, for removing material from a workpiece. In addition, each tool is formed with openings extending outwardly from its hollow interior so that the material removed by the tool from the workpiece can travel outwardly through these openings.
REFERENCES:
patent: 317131 (1885-05-01), Hartigan
patent: 389057 (1888-09-01), Clark
patent: 681294 (1901-08-01), Bliss
patent: 3266199 (1966-08-01), Bryson
patent: 3633583 (1972-01-01), Fishbein
patent: 3690780 (1972-09-01), Bjelland et al.
Metzeler Schaum GmbH
Vlachos Leonidas
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