| Patents for American Tool Works Co. |
Patents 76 -
90
of 124
      |
| Number | Date | Patentee | Title | Type |
| 2,066,073 | Dec. 29, 1936 | A.E. Robinson | Safety Device for Elevating or Translating Mechanism | metalworking machine mechanisms |
| 2,074,961 | Mar. 23, 1937 | W.G. Hoelscher | Machine tool feeding mechanism | metal lathes |
| 2,172,999 | Sep. 12, 1939 | W.G. Hoelscher | Electrically Controlled Automatic Lathe | automatic lathes |
| 2,173,557 | Sep. 19, 1939 | W.G. Hoelscher | Tapering attachment for lathes | metal lathe accessories and attachments |
| 2,278,262 | Mar. 31, 1942 | W.G. Hoelscher | Counterweight Mechanism for Drill Spindles | metalworking machine mechanisms |
| 2,278,263 | Mar. 31, 1942 | W.G. Hoelscher | Speed Indicator Means | metal lathe mechanisms |
| 2,294,187 | Aug. 25, 1942 | T.A. Waltz, A. Kullman | Apparatus for Heat Treating | heat treating machines |
| 2,295,516 | Sep. 08, 1942 | W.G. Hoelscher | Head Traverse Mechanism for Radial Drills | metalworking machine mechanisms |
| 2,312,839 | Mar. 02, 1943 | T.A. Waltz, A. Kullman | Flame Hardening Of Rack Bars | heat treating machines |
| 2,313,438 | Mar. 09, 1943 | W.G. Hoelscher | Fluid Operated Gear Shifting Mechanism | metalworking speed changing mechanisms |
| 2,317,060 | Apr. 20, 1943 | W.G. Hoelscher | Safety Device for Radial Drill Arm Elevating Screws | metalworking machine mechanisms |
| 2,326,368 | Aug. 10, 1943 | C. Black, A. Kullman | Gear Forming Machine | gear measuring machines |
| 2,330,426 | Sep. 28, 1943 | W.G. Hoelscher | Radial Drill | radial drill presses |
| 2,332,381 | Oct. 19, 1943 | W.G. Hoelscher | Lathe Spindle Speed Control | metal lathe mechanisms |
| 2,346,923 | Apr. 18, 1944 | T.A. Waltz, A. Kullman | Apparatus for Flame Hardening Racks and the Like | heat treating machines |
