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Based in the town of Ludhiana in the very far north of India, the Daulat Industrial Corporation Pvt. Ltd. is still active today. They manufactured a range of machines with offerings in the 1960s and 1970s consisting of lathe and shapers - the full details of which are, unfortunately, unknown though basic details of some representative models are shown below. Happily, two machines from that era are better known - the DSZ lathe and Model CLD shaper. The former was a well-specified machine and available as the DSZ-20 with a centre height of 200 mm, a swing over the cross slide of 200 mm and the ability to turn a job of 600 mm diameter in the optional bed gap. Travel of the cross slide was 225 mm and the top slide 125 mm. It could be ordered with a between-centres capacity of either 1500 or 2000 mm. The DSZ-22 was, in effect, the same machine with the centre height increased to 425 mm that allowed a swing over the cross slide of 250 mm and a capacity in the gap - again an option - of 650 mm. To take advantage of the greater capacity, the cross-slide travel was increased to 250 mm although that of the top slide remained unchanged. It appears that dual inch-metric micrometer dials were fitted, these being anodised to provide an anti-glare finish. Formed a rigid box section with stout cross bracing, the V and flat-way bed in cast iron had a hardness of 200 BHN (to the indigenous Indian Specification Grade S-210 of I962 for geometrical alignment, accuracy and performance. Driven by a choice of either a 5 or 7.5 h.p. 3-phase, 400-volt motor enclosed within the headstock end plinth, electrical start and stop was by a "third-rod" system - thought the usual control lever pivoting from the right-hand face of the apron was not duplicated at the headstock end. The headstock held a 55 mm bore, hardened and ground spindle made from nickel-chrome steel with an internal taper described by the maker as a "60 metric" and a D1-6 Camlock nose. It ran in two precision grade taper roller bearings at the front and a cylindrical roller bearing at the rear. Headstock gears were in an alloy steel, hardened, lapped and tooth ground and ran in a simple oil bath. Screwcutting was provided by a Norton-type quick-change gearbox with lever and tumbler-lever selection of the 4 to 64 t.p.i. Whitworth (inch) pitches and the 0.4 to 6 mm metric. The 63 longitudinal power feeds ranged from 0.0044 to 0.686 mm/rev and the cross feeds from 0.008 to 0.124 mm. The leadscrew, in alloy steel, had its 6 mm pitch thread generated by thread whirling. Able to be set over for the turning of slight tapers, the tailstock held a hardened, ground and honed spindle formed with a No. 4 Morse taper, locked by a split-barrel clamp and fitted with dual inch-metric micrometer collar. The approximate weight of both lathes was 2050 kg with 1500 mm between centres and 2450 kg with 2000 mm. For proposed export to the UK (though it is doubtful if any arrived) the lathe came fully equipped with a gap bed as standard, complete electrical equipment with an overload starter, no-volt safety release, a 200 mm 3-jaw chuck, a 400 mm independent 4-jaw chuck, a complete electric coolant system with a roll-out chip tray and a full-length splashback, a self-indexing 4-way and a rear toolpost, fixed and travelling steadies, faceplate, catchplate, five changewheels to extend the threading range of the screwcutting gearbox, a thread-dial indicator, two No.4 Morse centres (carbide tipped centre was a no-cost option), an oil can and an instruction book. Optional extras included a hydraulic copying attachment, taper turning, light unit, a larger 550 mm diameter faceplate, and a tailstock rotating centre..
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