All Patents of Type: ore processing apparatus |
Patents 1 -
15
of 77
|
Number | Date | Patentee | Title | Type |
2,016X | Oct. 27, 1813 | H. Alexander | Grinding and reducing ores into powder and preparing them for various uses | ore processing apparatus |
2,079X | Mar. 16, 1814 | T. Gregg | Air furnace for melting ores, refining and heating iron with stone coal | ore processing apparatus |
2,140X | May 27, 1814 | D. Walworth | Melting ores and metals | ore processing apparatus |
4,507X | Aug. 02, 1826 | C. Foss | Application of steam to the blast of furnaces | steel making furnaces |
5,000X | Feb. 13, 1828 | W.H. Folger | Machine for separating and collecting gold | ore processing apparatus |
5,562X | Jul. 08, 1829 | R. Lee | Machine for Washing, Cleaning, and Separating Gold Dust, &c. | ore processing apparatus |
5,634X | Sep. 10, 1829 | W.H. Folger | Machine for Washing Alluvial Earth, Clay, and Soft Ores, and Separating and Saving the Gold From the Same | ore processing apparatus |
5,715X | Nov. 18, 1829 | W.H. Folger | Mills for grinding, washing, and separating gold and silver from ores, earth, or in whatever state these metals may be found... | ore processing apparatus |
5,780X | Jan. 15, 1830 | J. Smith, S.C. Whistler | Separating and grinding gold | ore processing apparatus |
5,809X | Jan. 30, 1830 | P. Summey | Washing gold from gravel and sand | ore processing apparatus |
5,991X | May 22, 1830 | T.W. Sumter | Washing gold and separating alluvial | ore processing apparatus |
6,138X | Oct. 01, 1830 | R. King | Separating Gold by a Vibrating Circular Cylindrical Trough | ore processing apparatus |
6,139X | Oct. 01, 1830 | R. King | Vertical cylindrical gold washer | ore processing apparatus |
6,213X | Nov. 01, 1830 | V. DeRivafinoli, C. Harsleben, W. Davis | Machine for washing gold ores and alluvial soils | ore processing apparatus |
6,224X | Nov. 01, 1830 | D. Jones | Separating gold from earths | ore processing apparatus |