email: tony@lathes.co.uk
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Colchester Student & Master Mk. 1 & Mk. 2 Lathes
Clausing 12" and 13" Models 6564, 6565, 6524, 6525, 6566, 6567, 6526, 6527, 8010, 8011, 8012, 8013
Headstock & Gearbox
High quality Handbooks & Parts Manuals are available for the Mk. 1 & Mk. 2 Models
Student & Master Mk.1 & Mk.2 Home Page   
Carriage
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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   COLCHESTER HOME
           Magnum   Serial Numbers   Outline of Colchester Range as Text Only   Factory  Testing
Catalogue Covers    Early Drive System    Colchester 1909/14   Colchester 1919   Colchester 1920s



Mk 1 Student and Master Headstock

Mk 1 Student and Master screwcutting gearbox. Three versions were available: a dual English/Metric Box, a model labelled "Dominion 12" x 24", with English threads only and a very rare, all-metric version referred to as the "Continental" with both lever and joy-stick control; the latter box is shown below. To change from metric to English threads on the dual-box model required only that the operator altered the position of the horizontal lever immediately above the gearbox sliding selector.




Rare all-metric screwcutting gearbox with its distinctive joy-stick control lever. This box required additional changewheels to generate a full range of threads.
The lever immediately above the screwcutting chart has two positions marked E and F. Moving the lever from one position to the other alters the leadscrew drive from 1 : 1 Ratio to a fractional ratio, with the last letter in the last column of the screwcutting charts indicating how the settings can be used. On the dual English/metric box the same horizontal lever was used to switch between the two thread types.
Screwcutting charts for this gearbox can be seen here.

Inside the standard English/Metric screwcutting gearbox



Handbooks & Parts Manuals are available for the Mk. 1 & Mk. 2 Models

Student & Master Mk.1 & Mk.2 Home Page   Carriage

Colchester Student & Master Mk. 1 & Mk. 2 Lathes
Clausing 12" and 13" Models 6564, 6565, 6524, 6525, 6566, 6567, 6526, 6527, 8010, 8011, 8012, 8013
Headstock & Gearbox

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   COLCHESTER HOME
           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
Home   Machine Tool Archive   Machine-tools Sale & Wanted
Machine Tool Manuals   Catalogues   Belts   Books  Accessories