GB Patent: GB-501,631
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| Improvements in Indexing Devices for Chucks and Other Work Holders
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Patentee:
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| Edmund M. Erb (exact or similar names) - West Hartford, Hartford County, CT |
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Patent Dates:
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| Applied: |
Jun. 03, 1938 |
| Granted: |
Mar. 02, 1939 |
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Patent Pictures:
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1 | 2
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Espacenet patent
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Joel Havens
"Vintage Machinery" entry for Hartford Special Machinery Co.
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Description: |
| See U. S. Patent #2,144,486.
Abstract:
A work holder 31 is secured to a member 27 for rotation in abase 11 located in a machine by keys 18. An indexing disc 45, with evenly spaced peripheral slots, is secured to the member 27 by studs 44 and is locked by a slide 50 mounted in the base and engaging the slots A masking disc 73 with peripheral slots arranged for a particular sequence of operations is secured to the disc 45 by a pin 74 and cover plate 80 with slots of both discs in register. The slide 50 co-operates with both discs and locks the work holder' when the slots of disc 45 are unmasked by the slots of disc 73. The work holder is locked by a two-part brake 91. |
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