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Top-slide degree rotation scale
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Above and below: the very high quality of
construction is clearly evident in these photographs of the
power-cross-feed gearing
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Unusually long (and hence slow-wearing) top slide
bronze nut
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Sheet metal strip was used to protect the feed
screw from swarf and dirt
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Micrometer carriage stop--with an unusually small
dial
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As on all screwcutting Carstens lathes backgear
(for slow speeds) was by epicyclic gearing built into the largest diameter
of the headstock pulley
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Twin V-belts brought the drive up from the
stand-mounted speed-change countershaft
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The front of the spindle was shaped for the direct
fitting of draw-in collets
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10-speed (with backgear) multi-V-belt countershaft
unit using a Z-section (10 mm wide) belt. Final drive was by twin A-section
(13 mm) belts
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