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Barnes Twin Leadscrew Lathe - Page 2

Barnes Twin Leadscrew Lathe Home Page

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Literature for Barnes lathes is available


Carriage traverse handwheel of the correct "balanced" kind.. An over-engineered but pleasingly designed screw-in boss provided the handwheel-spindle support. The location of the saddle against the top of the rack can be clearly seen.

The top of the cross slide was provided with an inverted conical section slot into which a matching section on the base of the top slide fitted. A single square-headed bolt pushed a bronze locking plate into place.

The degree graduations for the top-slide swivel were engraved so that, once out of the central position, the zero mark met then at an awkward angle. The number stampings were at inconveniently-wide 30 degree intervals - which would have involved the operator in lots of time-wasting counting to arrive at the intended setting.


Although the base of the headstock was heavily built, the amount of material surrounding the all-important spindle bearings was inadequate.

The small-diameter spindle, long, bronze bearing (and a lack of supporting metal surrounding them) were typical of Victorian thinking - later designs would take another direction with more massive and rigid headstocks, large-diameter spindles and much shorter bearings.


Barnes tailstocks appear to differ little in design from model to model. This example had a top which could be off set for taper turning, the bed clamp was at the side, secured with a single nut, whilst the No. 2 Morse taper barrel was clamped by closing up a slit in the casting.
The handwheel, though of a respectable diameter, was bereft of a handle, which would have made withdrawing a long drill a tedious experience.


Barnes Twin Leadscrew Lathe Home Page   Barnes Home Page   

Literature for Barnes lathes is available

Barnes Twin Leadscrew Lathe - Page 2

email: tony@lathes.co.uk
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