Tool driving or impacting – Advance causing or controlling means – Motor causes or controls advance
Patent
1974-10-22
1977-02-22
Yost, Frank T.
Tool driving or impacting
Advance causing or controlling means
Motor causes or controls advance
408130, B23B 3900, B23B 4504
Patent
active
040087743
ABSTRACT:
A drill press that is hydraulically driven; the drill press including a turbine motor through which oil is pumped, and the motor having a rotor that is connected to the drill press spindle so to rotate the same.
REFERENCES:
patent: 223529 (1880-01-01), Morse
patent: 2382526 (1945-08-01), White
patent: 2409738 (1946-10-01), Conner
patent: 2459902 (1949-01-01), Tucker
patent: 2724134 (1955-11-01), Perlotto
patent: 2750816 (1956-06-01), Mott
patent: 2865236 (1958-12-01), Parke
Milano Martin B.
Rutherford David A.
Spector George
Bilinsky Z. R.
Yost Frank T.
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