email: tony@lathes.co.uk
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Wolf, Jahn 70 mm Lathes
Wolf Jahn Home Page   Wolf Jahn Watchmakers' Lathes   70 mm Centre Lathe 
Wolf Jahn Precision Bench Lathe   BGSC Precision Bench Lathe     

A high-quality reproduction Wolf Jahn catalogue is available

Classified as a smaller type of "precision bench lathe", the Wolf Jahn 70 mm centre height model has been found with bed lengths of  600, 700 and approximately 500 mm.
Do you have a similar model? If so, the owner of this lathe would like to correspond with you.
Haben Sie ein ähnliches Modell? Wenn ja, würde der Besitzer dieses Drehmaschine mit Ihnen entsprechen

Short-bed, pPlain-turning precision Wolf.Jahn Model 70 with non-original micrometer dials. This 70 mm centre height Wolf,Jahn lathe with a 3-step headstock pulley, has had a hard life and is not entirely original. However, it does show that the company were competing with the very popular and successful  Schaublin 65 and 70 models - though, by the very few discovered, Wolf,Jahn can have sold very few. The bed was the usual D pattern with a central T slot that held the headstock, carriage and tailstock onto the flat-topped, bevelled-edged ways. The 10 mm bore headstock spindle used two adjustable, conical hardened-steel plain bearings with a ball thrust race behind the pulley. Unusually for a precision bench lathe the tailstock was a "conventional" type and lacked the often-used long barrel that remained fully supported within the casting even when extended to its maximum reach.

Though a much larger lathe the Model 70 still used an elegant  top-slide set-over pointer that resembled that fitted to their watchmakers' models

The 10 mm bore headstock spindle used two adjustable conical hardened-steel plain bearings with a ball thrust race behind the pulley.

Unusually for a precision bench lathe the tailstock was a "conventional" type and lacked the long barrel that remained fully supported within the casting even when extended to its maximum reach.

A typical Wolf Jahn bench-lathe headstock with a beautifully sculptured - if not overly rigid - casting with hardened and lapped  spindle and bearings.

The headstock assembled with 3-step cone pulley

Elegant and heavily constructed this typical Wolf Jahn tailstock has no forward lean to take the barrel over the carriage bridge to allow very short between-centres work

Saddle and cross-slide screw with end bracket, handwheel and adjustable bronze nut

Cross-slide with eccentric bar and stem used to lock down the swivelling top slide

Top-slide lower casting with locking-down stem, feed-screw, feed-screw end bracket, handwheel and adjustable bronze nut

Top-slide upper casting. Note the sensible design of the tool clamp with its self-aligning  "wobble" washer, long, slender levelling screw and extra-long nut.

Typical of the era the top-slide screw handle was "one-sided" - not so typical was the provision of a micrometer dial in this position; these were usually confined, if fitted at all, to the cross slide.

email: tony@lathes.co.uk
Home   Machine Tool Archive   Machine-tools Sale & Wanted
Machine Tool Manuals   Catalogues   Belts   Books  Accessories

Wolf, Jahn 70 mm Lathes
Wolf Jahn Home Page   Wolf Jahn Watchmakers' Lathes   70 mm Centre Lathe 
Wolf Jahn Precision Bench Lathe   BGSC Precision Bench Lathe     

A high-quality reproduction Wolf Jahn catalogue is available