Spiral Turning Device

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An illustration of creating spirals on a steel rod using mandrel and lathe. The spiral is created by revolving the steel rod on the lathe while placing a mandrel on the rod at an angle.


Grimshaw, Robert Modern Workshop Hints (Philadelphia, PA: Sampson Low Marston & Company LTD, 1902)


TIFF (full resolution)

2400×1436, 279.2 KiB

Large GIF

1024×612, 51.6 KiB

Medium GIF

640×382, 28.5 KiB

Small GIF

320×191, 11.0 KiB