Turning – Severing or cut-off – Interrelated means for tool infeed and circumrotation
Patent
1978-02-09
1980-06-24
Vlachos, Leonidas
Turning
Severing or cut-off
Interrelated means for tool infeed and circumrotation
82 21B, 82 29R, 74476, 74479, 74491, 74527, 74DIG2, B23B 1900, B23B 2506
Patent
active
042089301
ABSTRACT:
An improved spindle control mechanism for a lathe that includes, in preferred form, a rotatable control knob operably related to a plurality of spindle motor control and servo-control switches by a switch drum fixed thereto and operably connected to a spindle transmission through a control shaft by a connector link pivoted in an eccentric position at one end to the control knob and pivoted at the other end to a lever arm fixed to the control shaft. Rotation of the control knob into a forward position simultaneously translates the lathe's transmission into a forward spindle rotation position and starts the spindle drive motor. Rotation of the control knob into an intermediate stop position simultaneously stops the spindle drive motor and activates the spindle servo-control switch (which permits the spindle's rotation speed to be changed by a separate spindle servo-control mechanism, if desired). Rotation of the control knob into a reverse position simultaneously translates the transmission into a reserve spindle rotation position and starts the spindle drive motor.
REFERENCES:
patent: 1250565 (1917-12-01), Crain
patent: 2154605 (1939-04-01), Carter
patent: 2522779 (1950-09-01), Culkosky
patent: 2608109 (1952-08-01), Hoelscher
LeBlond Incorporated
Vlachos Leonidas
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