| Sir. | Richmond Virga. Jany 15. 1825. |
My respect for you, (altho’ personally unknown) induces me to offer you herein enclosed, and to ask your acceptance of, one right to use for yourself & heirs a right for my Patent Pump for raising water by gravity or Weight, a Patent for which, I have obtained from the United States in November last. This Machine is of cast & wrought iron, and not bulky—is simple in its construction and durable—a weight of 8, or 9 hundred pounds can be wound up by a large crank and 2 wheels in a short time, which will propell it for a whole day—then wind it up again &c. A tube of half inch diameter will produce, say 50 or 60 Gallons of water per hour—the water when raised from Wells or other places of a sufficient height Can be conveyed in Metalic, or wooden tubes to any distance, & for many usefull purposes, say, for, Table use, cooking, washing, Baths, Gardens, Orchards, [Stake] yards, distileries, Taneries &c &c. I shall have in this place soon a Manufactory of them when they Can be packed [ ] sent to any part of the [United] [ ] water or land Carriage.—The [ ] of one, will not exceed 80 or 90$ [ ] of the weight, which every person using one, can make himself.—the Patent fee I propose to make low, say 20$ for the term of the Patent.
When you are at leisure, it would give me pleasure to have a letter from you, stating your opinion of its usefullness in your State, & as I shall go to your country in the summer, it will afford me great gratification to call on you, for a moment & pay my respects personally to you.
I have had the honor of a letter from Mr. T. Jefferson, highly approving this invention.
Accept my best wishes / & highest respect, Sir, / your Obt.
William Dabney.
MHi: Adams Papers.