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Sorby Woodturning Lathe
Photographs
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The drive was by a 5-step Poly-Vee belt from a headstock-mounted hinged motor plate that carries either a 1 hp single-speed motor (with a no-volt safety starter) or a DC variable-speed unit with electronic control (shown here); with the former the spindle speeds were a useful 265, 550, 950, 1500 and 2400 rpm - and with the latter a more impressive 0 to 3000 rpm. Although the DC motor-equipped version would run through its entire speed range without the need to change belt position, the lathe retained the complete 5-step pulley arrangement of the standard model; this had considerable advantages, for, by positioning the drive belt on the pulleys normally used for the slowest speed, the torque was greatly enhanced and the top speed is physically limited to a maximum of 360 rpm - making the turning of very-large diameters a much easier and safer proposition.

Rear view of the headstock showing the hinged motor plate and variable-speed DC motor.
The large handle level with the motor plate released a cam and allowed the headstock to be swivelled on its mounting plate.

The No. 2 Morse-taper headstock spindle ran in sealed-for-life ball races and could be supplied with either a 1-inch x 8 tpi English or 33 x 3.5 mm metric thread.

Unusual double-toolrest saddle. The unit was freed and locked with one twist of the handle - and could be slid and pivoted freely on its mounting.
Made in a very strong spheroidal-graphite, the unit was offered as a separate item to replace the weaker units found on some Record woodturning lathes.

The tailstock had a hollow, No. 2 Morse taper barrel allowing it to be adapted as a steady to assist with long-hole boring.

Substantial tailstock-to-bed clamp.

Close up of the roller bearings fitted to the ends of the fingers on the fixed steady.

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E-MAIL   tony@lathes.co.uk


Sorby Woodturning Lathe
Photographs
Accessories   Photographs   Eccentric Chuck   Sorby Photographs