US Patent: 1,270,862
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| Transmission Mechanism for Machine-Tools
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Patentee:
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| Fred A. Parsons (exact or similar names) - Milwaukee, Milwaukee County, WI |
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Patent Dates:
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| Applied: |
Sep. 29, 1917 |
| Granted: |
Jul. 02, 1918 |
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Joel Havens
"Vintage Machinery" entry for Brown & Sharpe Mfg. Co
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Description: |
| This patent was listed on a Patent Plate from a Brown & Sharpe #2 Horizontal Milling Machine.
Claim:
The main objects of the invention are to render a variable feed transmission and a quick traverse transmission separately or jointly available, according to varying conditions and requirements; to provide for manual and complete or partial automatic control of the movements effected by each transmission; to enable the operator to readily and unmistakably select the desired transmission and by the simple movement of a handle to determine and effect the movement of the member actuated by such transmission in a corresponding direction; to limit the torque to which either transmission can be subjected in imparting movement to the member actuated thereby; to provide for relatively slow variable feed movements, and for relatively rapid constant quick-traverse movements in each of several courses or paths transverse to one another, the feed movements being at the same rates in all the courses or paths and the quick traverse movements at different rates in different courses or paths; to provide separate and independent controlling means for the course or path of travel in which the reciprocatory supporting member is most used and joint controlling means for the other less used courses or paths of travel; and generally to simplify and improve the construction and operation of mechanism of this class. |
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