Screw fastening apparatus

Tools – Wrench – screwdriver – or driver therefor – Machine

Patent

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Details

81 5742, 81125, B25B 1300

Patent

active

043206743

ABSTRACT:
Screw-holding device for receiving a screw are supported from three directions around the device and incline, whenever necessary. The screw-holding devices move in parallel at times. There are also provided engaging devices that are combined with the screw-holding devices and transmit a rotational torque to the screw-holding devices. A space is secured between these two devices for allowing the inclination of the screw-holding device.

REFERENCES:
patent: 3368431 (1968-02-01), Kulaga
patent: 3731722 (1973-05-01), Carr
patent: 3967664 (1976-07-01), Lesner et al.
patent: 4098001 (1978-07-01), Watson

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