US Patent: 2,777,704
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| Precision Chuck Jaws
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Patentee:
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| Harry E. Sloan (exact or similar names) - Hartford, Hartford County, CT |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jun. 17, 1954 |
| Granted: |
Jan. 15, 1957 |
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Joel Havens
"Vintage Machinery" entry for Cushman Chuck Co.
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Description: |
| Claims:
This invention relates to precision chuck means, and more particularly to adapter means for modifying a standard serrated jaw chuck to permit independent, precision adjustment of the individual jaws thereof.
The invention here is an improvement upon a related type of chuck disclosed in the patent to Harry I. Schuster, 2,401,971, dated 11 June, 1946.
As in the case of the chuck described in the aforesaid Schuster patent, this invention has especial application to power chucks, that is, chucks of the type in which two or more jaws are simultaneously moved in a radial direction to and from work-engaging position by pneumatic, electric or hydraulic power means. In such chucks, since they are normally used for large volume production work where a particular machining operation is repetitively performed on successive work pieces, itis essential to provide a precise adjustment of the individual work-engaging jaw elements of the chuck to insure fast and accurate gripping of the Work piece and proper centering thereof in the lathe or other machine tool. The present invention affords an effective means of accomplishing the-foregoing in a manner which has certain very desirable advantages over generally similar means heretofore employed for this purpose. |
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