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in 6 to 7 seconds and braked to a halt in approximately the same time).
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The apron lever gave a stop, forward and reverse action the other just a reverse and stop in conjunction with the headstock-mounted clutches, the brake and electrical switches this easily-operated and safe system allowed the operator to control the spindle from either the vicinity of the toolpost or the headstock - and all whilst the motor was left running so that the minimum of time was wasted waiting for speed to build up (it allowed an unladen 12-inch diameter 3-jaw chuck to be accelerated from rest to 1195 r.p.m.
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Once the spindle speeds had been selected and the motor switched on by the headstock-mounted push-button starter the spindle control was by two levers: one pivoted from the right-hand apron wall and the other up against the inner face of the headstock both worked through a 'third shaft' (parallel and below the feed shaft and leadscrew) that was connected by links to a cross shaft that passed through the bed just in front of the headstock. The very first lathes were listed as being powered by a 7.5 hp (5.6 kW) motor but this proved to be inadequate and much a more powerful 12.5 hp (9.3 kW) unit was soon made standard The motor was mounted inside the headstock-end plinth on an adjustable plate and drove up to the headstock through 4 V belts into a shaft on which were mounted two easily-adjusted, oil-immersed, forward and reversing clutches. You are welcome to email for advice as to what might be suitable, Concentrically mounted paddle levers on the front face of the headstock selected the spindle speeds and worked through an ingenious and compact mechanism, with (for a machine tool) an almost foolproof system of colour coding to indicate the settings.
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