email: tony@lathes.co.uk
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Colchester Triumph 2000 Lathe - Page 2   Page 1
Clausing 15" Models 8030, 8031, 8032, 8033
Apron, Carriage & Gearbox
Triumph 2000/2500 Home Page   
A Handbook & Parts Manual is available for all versions of the Triumph 2000
COLCHESTER HOME
Bantams Original
   Bantams 800, 1600 & 2000 Modern   Chipmaster   Student 1800   Mascot 1600
Student/Master Mk. 1 & Mk. 2   Student 3100   Master Original 1930s/40s  Master 2500
   Triumph Mk. 1 & Mk. 2   Triumph 2000   Mascot 1950s   Mascot 1914-18  Mastiff 1400  Magnum 
Serial Numbers   Outline of Colchester Range as Text Only   Factory  Testing
Catalogue Covers   Early Drive System
   Colchester 1909/14   Colchester 1919   Colchester 1920s



The apron was doubled walled, with its shafts supported on ball bearing at each end and all the gears hardened and ground; the base was closed off to form an oil bath to splash lubricate the internals and at the top of the front face, just to the right of cross-feed screw, was a push rod for the hand-operated plunger pump that fed lubricant from the same supply to the bed, cross-slide ways and cross-feed nut.

The Compound slide rest was machined all over and fitted with taper gib strips that allowed a very precise fit to be obtained whilst giving far superior support in comparison with the cheaper "loose-strip" type. The cross slide was especially wide and fitted with a cross-feed screw that could be adjusted to reduce backlash. Unfortunately, it was devoid of T slots, or even tapped holes, that might have been used to hold a parting-off or other special tool; however, the slide was of a sufficient thickness to allow a hydraulic profiling attachment to be mounted on it and so the possibility existed for an owner to safely make his own tapped holes to mount anything he thought necessary.

The dual Metric/English screwcutting gearbox was totally enclosed, lubricated from an oil bath and fitted with hardened and ground gears running on ball-race supported shafts. Three conventional levers, and an 8-position joystick that moved into radial slots around a circle, swapped the ratios. The box was able to generate a wide range of pitches without dismounting or changing any of the changewheels; the range of threads comprised: 39 Metric from 0.2 mm to 14.0 mm; 18 Module from 0.3 to 3.5m; 45 English from 2 to 72 t.p.i. and 21 Diametral from 8 to 44 D.P.  The range of sliding feeds varied from 0.001" to 0.040" (0.03 mm to 1.0 mm) and surfacing feeds at half those rates (and thus) from 0.0005" to 0.020" (0.015 mm  to 0.5 mm) - all per revolution of the spindle.



A Handbook & Parts Manual is available
for all versions of the Triumph 2000

Colchester Triumph 2000 Lathe - Page 2   Page 1
Clausing 15" Models 8030, 8031, 8032, 8033
Apron, Carriage & Gearbox
Triumph 2000/2500 Home Page   

COLCHESTER HOME  Bantams Original   Bantams 800, 1600 & 2000 Modern   Chipmaster   
Student 1800   Mascot 1600   Student/Master Mk. 1 & Mk. 2   Student 3100   Master Original 1930s/40s  Master 2500   Triumph Mk. 1 & Mk. 2   Triumph 2000   Mascot - 1950s  Mastiff 1400   
           Magnum   Serial Numbers   Outline of Colchester Range as Text Only   Factory  Testing
Catalogue Covers   Early Drive System
   Colchester 1909/14   Colchester 1919   Colchester 1920s

email:tony@lathes.co.uk
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