US Patent: 4,497,410 
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| Automatic Tool Changer for a Lathe
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	        Patentee:
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 | William C. Coate (exact or similar names) - Cincinnati, Hamilton County, OH |  
 
 
 
 
 
| Manufacturer: |  
| Not known to have been produced |  
 
 
 
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        Patent Dates:
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| Applied: | 
Aug. 15, 1983 | 
 
| Granted: | 
Feb. 05, 1985 | 
 
 
 
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                        Joel Havens "Vintage Machinery" entry for Lodge & Shipley Machine Tool Co. 
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        Description: |  
| Division of application filed 10 May, 1982, patent #4,457,065, which is a continuation of application filed 13 Nov., 1979, patent #4,330,928. 
Notice: 
The portion of the term of this patent subsequent to 25 May, 1999 has been disclaimed. 
Abstract: 
An automatic tool changer for a lathe is provided having a rotating drum-type tool storage magazine mounted to the cross slide of the lathe and rotatable to align any one of a plurality of tool holder assemblies and their tools, supported by the magazine, with a guide channel through which a selected tool holder assembly and tool can be slid to the active position, or tool post, on the cross slide, for operating on the workpiece supported by the lathe. A stationary, double-acting, hydraulic piston is disposed in the central portion of the drum-type magazine, having its piston rod in alignment with the guide channel and having a tool holder assembly shuttle member attached to the rod, for transporting an active tool and holder assembly from its ready position in the magazine, in a straight line radially outward from the magazine to the tool post, and for returning the tool holder assembly and tool to their storage position on the magazine after use. |  
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