Turning – Portable lathe for brake drum – disc – or shoe
Patent
1997-03-10
1999-02-09
Pitts, Andrea L.
Turning
Portable lathe for brake drum, disc, or shoe
82138, 82141, B23B 502
Patent
active
058680527
ABSTRACT:
Lathes for working brake rotors and other components as desired. The lathes employ a pivoting carriage which mounts a tool for working, cutting, finishing or otherwise having a desired effect on the workpiece. Control of carriage positioning is accomplished preferably using a feedscrew, hydraulic or other desired linkage which is connected, directly or indirectly, to the carriage and to the frame of the lathe (other mechanisms or linkages may also be used). Such lathes may also employ a slide carriage for working brake drums, which carriage is preferably located on the side of the lathe opposite the pivoting carriage. The slide carriage may be easily removed and sold as a separate unit to allow a number of options for buyers. This arrangement also eliminates the changeover time and effort required in conventional lathes that employ cross slide mechanisms; instead of the need to replace the tool post assembly ordinarily employed in working rotors with the boring bar assembly ordinarily used for working drums in conventional lathes, the operator simply uses the already-configured rotor or drum working unit on the desired side of the lathe. Lathes according to the present invention are mechanically simpler, and easier and less expensive to manufacture because they eliminate the need for conventional cross slide mechanisms. Because of the simplicity, however, lathes according to the present invention allow more precise control over the tool and thus a more precise finish on the workpiece.
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Accu International, Inc.
Ewing, IV James L.
Pitts Andrea L.
Tsai Henry W. H.
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