Of 50 mm centre height, the Model P was available in two bed lengths - the short PB1 and the longer "twin-support" PB2. Two headstocks were offered; the 8 mm collet PH2 and the 10 mm collet PH4 both able to take either draw-in or quick-action, lever-operated collet closers. The headstocks were fitted with split bronze bearings were designed for continuous running at 10,000 rpm - their ability to do this reliably being advertised by testimonials from satisfied custom The bearings had plain bores with a taper on the outside by which means a precise adjustment of the clearance could be made. A ball race was provided to take end thrust. The bearings were intended to run "warm" at all speeds with the makers suggesting that, if a machine was to be used continuously at high or low speeds, it would be worth adjusting the bearing clearance to suit. When the bearings were well used it was possible to dismantle them and remove a laminated shim (0.003") to reset the adjustment range. The tailstock on the "P" was normally supplied with a simple "push-action" barrel but a lever-operated device was an option and a screw-feed barrel was eventually listed as well..
Short-bed Model CZ45 (8 mm collet) and CX45 (10 mm collet) - with screw-feed compound slide rest and rear toolpost (PM5) , draw-in collet closer and a plain, push-action tailstock barrel.
A rare survivor - a short-bed Model
Long-bed Model EY45 (8 mm collet) and EU45 (10 mm collet).
Set up for production work this Pultra Model FZ38 (8 mm collet) and FX38 (10 mm collet) was equipped with lever feed to all movements to speed up repetition work.
Short bed Model BZ38 (8 mm collet) and BX42 (10 mm collet) with lever collet closer, lever-operated compound slide rest with a rear tool post. This specification was suggested for "second-operation" use when finishing small components.
Headstock with quick-action lever-operated collet
Tailstock with lever-feed barrel.
Most machine tools made during World War 2 on Government contracts were produced without cosmetic adornment - but with the makers protecting their reputations by labelling them "War Finish". Even so, Pultra still managed to fit a rather fine bronze badge to the tailstock-end bed foot…..