Driving-gear; Control devices

Child Classifications

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• D05B 69/02 Mechanical drives
• D05B 69/08 Fluid drives, e.g. pneumatic
• D05B 69/10 Electrical or electromagnetic drives
• D05B 69/14 Devices for changing speed or for reversing direction of rotation
• D05B 69/20 Control devices responsive to the number of stitches made
• D05B 69/22 Devices for stopping drive when sewing tools have reached a predetermined position (electric motor control systems in general H02P)
• D05B 69/28 Applications of servo devices for tool-positioning purposes
• D05B 69/30 Details (work-feeding drives D05B27/00; needle-bar drives D05B55/14; loop-taker drives D05B57/30)
• D05B 69/36 Devices for stopping drive when abnormal conditions occur, e.g. thread breakage