Class 409/255 - With safety means for overload or safety interlock

Subclass of Class 409 - Gear cutting, milling, or planing
Definition: Apparatus including a protective device for the machine
No. of patents: 3
Last issue date: 07/06/1999

Number	Title	Issue Date
5919015	Mechanical drive for a blind spline broaching machine A mechanical drive linkage for a blind spline broaching machine wherein a rotary motion provided by a servo driven helical ball or roller screw is converted to a linear reciprocal motion of a ram through the use of a kite link and a pivot link that as a p...	07/06/1999
4477215	Broaching machine safety An automatic machine tool having a tool holder for moving a plurality of tools into working relation to a plurality of work parts, and mechanically actuated means effective to terminate machine operation if any one tool is missing from the tool holder....	10/16/1984
4260305	Device for preventing tool breakage in tool machines An accessory for tool machines is provided comprising a tool holder isolatedly carried on bar springs to effect a floating mount. The holder yields in response to selective load stress during cutting and is restricted to a linear force path to relieve str...	04/07/1981

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