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nx-patents:nx-5212 [2019/05/25 02:29] (current)
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 +====== Patent NX-5212: 1828-08-29, Improvement in steam engines, &c. ======
 +^ X Number ​     ^ Date       ^ Inventor ​      ^ City             ^ Title  ^
 +| NX-5212 ​      | 1828-08-29 | Uriah Brown | Washington, DC | Improvement in steam engines, &c. |
 +===== Comments =====
 +This patent was probably never issued as it has never been listed in any of the Patent Office compendiums of pre-1836 patents. We know of its existence from The American Journal of Improvements in the Useful Arts, and Mirror of the Patent Office in the United States, Vol. 1 No. 2 (April-June 1828), as well as The Franklin Journal and American Mechanics'​ Magazine for October 1828. Our inventor, Uriah Brown, was one of the originators of the short-lived American Journal of Improvements mentioned above.
 +"...a new and useful improvement in the steam engine, denominated 'The Double Tangent Chain Lever;'​ the object of which, is to transmit motion and power from the piston to the lever or working beam, and to convert the rectilinear motion of the piston, into a reciprocating circular, or a continuous circular motion... This object, I propose to accomplish by means of two chains (a and b,) alternately working over the periphery of an arc at the extremity of the impelled end of the lever..."​
 +===== Information Sources =====
 +(To be filled in.)
 +    ​
 +===== External links =====
 +[[https://​​books%3Fid%3DxaM1AQAAMAAJ%26pg%3DPA182-IA4|Patent specification and drawing]]
nx-patents/nx-5212.txt ยท Last modified: 2019/05/25 02:29 (external edit)