US Patent: 5,593X
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Dry Docks
Construction of Dry Docks
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Patentee:
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| Elias Selden (exact or similar names) - Haddam, Middlesex County, CT |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Granted: |
Jul. 30, 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 an improvement in the Dry Dock, being a new method of taking ships, and other vessels, out of the water; Elias Selden, Haddam, Middlesex County, Connecticut, July 30.
This new dry dock is constructed exactly like a common lock upon a canal, for raising boats from one level to another, and exactly as it has been repeatedly proposed to construct dry docks.
A dock is to be prepared, into which the vessel can be floated; it is then to be enclosed by gates; water is then to be pumped in, or to be supplied, from any convenient source, to float the vessel into a second dock, which must be sufficiently elevated to allow the water to run off and leave it dry.
There is, in the specification, a particular account of lengths, widths, mortises, tenons, number of pieces, and various other things respecting the timber to be used; and according to the description, and the mere scratch which accompanies it as a drawing, it appears to be the design of the patentee to form his dry dock above ground, by framing timbers together, and planking them. It is much to be apprehended that his scheme, his dock we mean, would not hold water, in which case a vessel would be in no danger of finding its way into this aerial establishment.”
Journal of the Franklin Institute Vol. 7, Oct. 1829 pg. 268
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