| Patents for James Hartness |
Patents 1 -
50
of 94
      |
| Picture | Number | Date | Patentee | Title |
 | 392,425 | Nov. 06, 1888 | J.J. Tower, J. Hartness | Carpenter's Plane |
| | 409,786 | Aug. 27, 1889 | J. Hartness | Turret Lathe Having a Supplemental Drill Spindle |
| | 412,027 | Oct. 01, 1889 | E.F. Spaulding, J. Hartness | Lathe Chuck |
| | 424,979 | Apr. 08, 1890 | J. Hartness | Screw Machine Tool |
| | 431,809 | Jul. 08, 1890 | J. Hartness | Attachment for Metal Screw Machines |
| | 441,411 | Nov. 25, 1890 | J. Hartness | Stock Feeding Device for Screw Machines |
| | 451,711 | May 05, 1891 | J. Hartness | Chuck |
| | 457,967 | Aug. 18, 1891 | J. Hartness | Machine for Making Screws |
| | 467,097 | Jan. 12, 1892 | J. Hartness | Belt Shipper |
| | 467,098 | Jan. 12, 1892 | J. Hartness | Stock Feeding Device for Screw Machines |
| | 501,273 | Jul. 11, 1893 | J. Hartness | Tool for Turning Tapering Surfaces |
| | 510,020 | Dec. 05, 1893 | J. Hartness | Screw Machine |
| | 529,169 | Nov. 13, 1894 | J. Hartness | Screw Cutting Die |
| | 541,483 | Jun. 25, 1895 | J. Hartness | Fluid Controlled Clutch and Speed Regulator |
| | 543,551 | Jul. 30, 1895 | J. Hartness | Metal Reducing Tool |
| | 556,415 | Mar. 17, 1896 | J. Hartness | Turret Lathe |
| | 565,746 | Aug. 11, 1896 | J. Hartness | Screw Cutting Die |
 | 579,570 | Mar. 30, 1897 | E.R. Fellows | Cutter and cutter-head for gear-shaping machine |
| | 587,480 | Aug. 03, 1897 | J. Hartness | Attachment for Turret Lathes |
| | 596,750 | Jan. 04, 1898 | J. Hartness | Screw Cutting Attachment |
| | 614,949 | Nov. 29, 1898 | J. Hartness | Screw Cutting Die |
| | 629,161 | Jul. 18, 1899 | J. Hartness | Stock Feeding Mechanism for Screw Machines |
| | 635,887 | Oct. 31, 1899 | J. Hartness | Turret Lathe |
| | 635,888 | Oct. 31, 1899 | J. Hartness | Turret Lathe |
| | 637,461 | Nov. 21, 1899 | J. Hartness | Fluid Operated Lathe |
| | 638,578 | Dec. 05, 1899 | J. Hartness | Box Slide Forming Tool |
 | 672,398 | Apr. 16, 1901 | J. Hartness | Lathe |
| | 672,399 | Apr. 16, 1901 | J. Hartness | Tool Holder |
| | 696,634 | Apr. 01, 1902 | J. Hartness | Chuck |
| | 700,644 | May 20, 1902 | J. Hartness | Fluid Regulating Device |
| | 700,645 | May 20, 1902 | J. Hartness | Fluid Regulating Device |
| | 700,646 | May 20, 1902 | J. Hartness | Fluid Operating Device |
| | 700,647 | May 20, 1902 | J. Hartness | Power Transmission Mechanism |
| | 703,410 | Jul. 01, 1902 | J. Hartness | Fluid Regulating Device |
| | 703,411 | Jul. 01, 1902 | J. Hartness | Back Gearing for Lathes |
| | 735,254 | Aug. 04, 1903 | J. Hartness | Metal Working Machine |
| | 739,866 | Sep. 29, 1903 | J. Hartness | Turret Lathe |
| | 763,886 | Jun. 28, 1904 | J. Hartness | Temple Controlled Turner for Lathes. |
| | 769,219 | Sep. 06, 1904 | J. Hartness | Turning Tool for Lathes |
| | 771,242 | Oct. 04, 1904 | J. Hartness | Turret Lathe |
| | 771,243 | Oct. 04, 1904 | J. Hartness | Lathe |
| | 773,640 | Nov. 01, 1904 | J. Hartness | Turning-Tool |
| | 792,591 | Jun. 20, 1905 | J. Hartness | Metalworking Machine |
| | 800,440 | Sep. 26, 1905 | J. Hartness | Bed for Turret Lathes |
| | 800,570 | Sep. 26, 1905 | J. Hartness | Compensating Bearing |
| | 800,571 | Sep. 26, 1905 | J. Hartness | Balanced Drive for Lathes |
| | 832,380 | Oct. 02, 1906 | J. Hartness | Tap and Process of Making the Same |
| | 832,381 | Oct. 02, 1906 | J. Hartness | Power Transmitting Mechanism for Metal Working Machines |
| | 840,322 | Jan. 01, 1907 | J. Hartness | Lathe Spindle |
| | 860,802 | Jul. 23, 1907 | J. Hartness | Turning Tool |
