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US Patent: 555X
Varnish for writing tablets
Patentee:
Amos D. Allen (exact or similar names) - Windham, CT

USPTO Classifications:
30/478

Tool Categories:

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Granted: May 10, 1804

Patent Pictures:
USPTO (New site tip)
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Report data errors or omissions to steward Jeff Joslin
Description:
This patent does not have a patent drawing. The specification is difficult to read, but here is what we have deciphered.

"Prepare linseed oil prepared by boiling a short time with quick lime and a small quantity of whole ????. Take four ounces of Gum ??? ??? ??? of ??? Turpentine. ... sugar of lead, which will congeal the composition in to a hard durable body. It must be applied to the wood or other substance immediately or it will grow so stiff as to be unable to spread it with a brush." When dried the coating is "polished with a pumice of yellowstone made fine".

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