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Mikron 90 mm centre height by 400 mm between-centres precision plain-turning lathe arranged for tool making with all-screw-feed controls and a draw-tube collet closer The parts used were: No. 1 bed, No. 8 headstock, No. 21 slide rest and No. 38 tailstock
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Special Grinding lathe. Built up using the No. 2 short bed, No. 8a Headstock, No. 28 grinding slide rest and fitted with a magnetic chuck this machine was intended for the production of surface grinding plates, thrust washers, small dies and similar delicate or difficult-to-hold parts. The maximum diameter that could be held was 100 mm
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Designed for use as a Second-operation or Finishing lathe. Every movement was by lever action for rapid production work on small batches. The unit consisted of a No. 6 short bed, No. 10 headstock (collet capacity 14.5 or 16 mm) No 25 slide rest (70 mm travel on the top slide) and a No. 40 tailstock (collet capacity 14.5 or 16 mm and a spindle travel of 100 mm)
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Semi-automatic lathe--for the turning of parts by a power feed. The headstock had a collet capacity of 14.5 or 16 mm and the maximum length that could be turned was 100 mm. An adjustable stop could be set to disengage the drive at any point, the tailstock was fitted with a spring-loaded centre to allow for the expansion of work as it heated during turning and slides and feed screws were covered to prevent the ingress of dust and swarf. A selection of changewheels provided to give feed rates from either 0.05 to 0.02 mm or 0.25 to 0.2 mm per revolution of the spindle
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Special Relieving lathe with No. 8 headstock. With many special tools being required in the manufacture of mechanical watches, clocks and instrumentation the need for one-off or modified cutters was a frequent occurrence. To assist with their production a special assembly was offered that could accommodate material up to 60 mm in diameter. A bracket, which bolted into the (No. 2b) bed's front T-slot, carried the drive part of the unit and included a set of changewheels with 7, 8, 9, 10, 11, 12, 14, 15, 16, 18, 20, 22 and 24 teeth. Slide No. 31 had a travel of to 25 mm and was driven directly by a cam that imparted an oscillating motion
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Another form of carriage drive for a plain-turning Mikron - this appearing to be hand operated by the forward-facing wheel, the whole assembly being adjustable along the bed to get the cutting tool into the desired position
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Lathe for slotting work consisting of the No. 2a short, bed, No. 16 indexing swivel headstock and the No. 36 hand-driven slotting attachment. Travel of the bed slide was 90 mm and movements of the compound slide on the slotting head 40 mm across and 30 mm vertically (the latter two with 0.01 mm micrometer dials on their feed screws). All movements limited by adjustable stops. For serious production use a powered version of the slide was available under accessory No. 37
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Pivot polishing lathe: No. 6a short bed, No. 11 headstock, No. 30 pivot polishing slide and the No. 46 tailstock. Adapted from watchmakers' lathe practice slide No. 30, solely for use in pivot polishing (burnishing). The unit was mounted on a swivelling base, which could be swung through 45° in either direction, and both slides were fitted with micrometer-adjustable stop screws. The top slide had 15 mm of travel - more than adequate for the jobs likely to be encountered - with the largest diameter of pivot that could be ground being 2 mm. The special tailstock, No. 46 with a swing-action centre, was produced to accompany the slide
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Turret production lathe on cast-iron chip pan. The machine was built up using the No. 1a bed, No. 10 headstock, No. 23 cut-off slide rest, No. 34 5-station turret, No. 118 chip pan, No. 122 coolant reservoir and No. 123 pump. The turret had a slide travel of 100 mm by rack-and-pinion gearing operated by a 4-spoke capstan handwheel. Bored to accept 18 mm tools the turret was automatically indexed on the return stroke
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Optical turret lathe: No. 1 bed, No. 19 headstock with integrated thread-chasing attachment and the 5-station turret No. 35 . The latter had the head mounted on a 40 mm travel cross slide (operated by a handwheel and coarse, quick-action thread) and a six-position rotary stop. Instead of being rotated by the longitudinal sliding action the turret (bored for 18 mm tools) was indexed by a lever on top that simultaneous unlocked and turned it
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No. 1 lathe bed. Overall length 900 mm and 130 mm wide. The bevelled edges were set at 60° and the flat surfaces 65 mm wide. A similar bed, the 1a was available, but made 65 mm longer to mount the clamp that supported the lever-operated collet closer
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The Short Bed was made in two styles No. 2 above and No. 6 below - with each available in three overall lengths: No. 2: length 685 mm, No. 2a length 600 mm and No. 2b 500 mm
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No. 6 Short Bed overall length 750, No. 6a length 665 mm and 6b length 565 mm
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30 mm Raiser blocks (sub-bases) No. 3, 4 and 5 for, respectively, headstock, slide rest and tailstock
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Not listed in any known Mikron catalogue, this unusual bed is cast with an integral coolant tray
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