US Patent: 5,583X
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| Compound for Cleaning, Biting and Sharpening Worn Out Files
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Patentees:
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| E. Brittingham (exact or similar names) - New York, NY |
| Asahel P. Brittingham (exact or similar names) - New York, NY |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Granted: |
Jul. 27, 1829 |
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Joel Havens
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Description: |
| Most of the patents prior to 1836 were lost in the Dec. 1836 fire. Only about 2,000 of the almost 10,000 documents were recovered. Little is known about this patent. There are no patent drawings available. This patent is in the database for reference only.
"For a compound for cleaning, biting, sharpening, and polishing, old and worn out Files; A. P. & E. Brittingham, New York, July 27.
The operation of sharpening old files, as the title indicates, is to be performed by biting, or acting on their surfaces, by acids. The specimens shown at the patent office, speak well for the process, as some files were exhibited, the teeth of which were sharp, although it was declared they had, previously to the operation, been completely dull. The patent is taken for the kinds, mixture, and proportion, of the acids employed."
Journal of the Franklin Institute Vol. 7, Oct. 1829 pg. 263 |
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