US Patent: 1,616,286
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| Bolt and nut assembly
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Patentee:
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| Edwin Ball Stimpson (exact or similar names) - Brooklyn, NY |
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Patent Dates:
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| Applied: |
Dec. 26, 1924 |
| Granted: |
Feb. 01, 1927 |
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Jeff Joslin
Vintage Machinery entry for Edwin B. Stimpson & Son
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Description: |
| The innovation here is a slotted bolt-head that allows a U-shaped wire to be inserted that engages with the screw threads. "Obviously, vibration will be ineffective to cause relative motion of the bolt and nut". |
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