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Portland Gazette, And Maine Advertiser
Portland, Cumberland County, Maine
What is this article about?
Mr. Harrison of Connecticut has lodged a schedule and drawings at the Patent Office in Washington for his invention, a Double Lens made of glass and liquid that provides enhanced green-tinted light for reading, writing, and fine arts, beneficial for weak eyes and equivalent to three candles' light.
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A schedule and drawings have been lodged at the Patent Office, Washington, by Mr. Harrison, of Connecticut, which secures to him an invention called a Double Lens, which is composed of glass, a liquid substance, the use of which is particularly adapted for reading, writing, the fine arts, diffuses a clear and conspicuous light, tinged with a beautiful green shade which has a delightful appearance upon the book or other object illuminated; the use of which has a most salutary effect upon the eyes; and those who have weak eyes, or whose eyes are failing are enabled to see with much more clearness than with common lights. The light produced by the lens from one light is equal to the light of three candles; of course a great saving is manifest where a good light is requisite.
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Domestic News Details
Primary Location
Washington
Key Persons
Outcome
secures invention; provides enhanced light equivalent to three candles, beneficial for eyes, and saves on lighting costs.
Event Details
A schedule and drawings lodged at the Patent Office by Mr. Harrison of Connecticut for a Double Lens composed of glass and liquid, adapted for reading, writing, fine arts; diffuses clear green-tinted light with salutary effect on eyes, allowing clearer vision for those with weak or failing eyes.