email: tony@lathes.co.uk
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MYFORD Screwcutting Gearboxes
- early and kit-built types -
Myford Home Page   Myford ML7  Myford ML7 Tri-Leva  Myford ML7 Photographic Essay
ML7 Rebuild   Myford Super 7 and ML7R  Myford ML8 Wood lathe 
Myford ML10: (Modern 31/4" Lathe)  Myford 254 and 254 Plus 
Myford/Drummond M Type  Myford ML1, ML2, ML3 & ML4   4-inch Precision
  Myford Mini-Kop  Myford Special & Production Capstan Lathes  Myford 280   
Accessories   Myford Replicas and Clones  Serial Numbers
   Early and third-party screwcutting gearboxes  Rodney Milling Attachment
Amolco Milling Attachment  Staines milling and "Big Swing" attachments   
Super 7B power cross feed--photographs
Myford Super 7 "new in the box"   First Myford ML7 Catalogues

Comprehensive Data Packs with Operation Manuals, Parts Lists
and Catalogues, etc., are available for most Myford lathes


Although a kit-form gearbox had been designed and marketed in kit form during the late 1940s by L. H. Sparey (author of "The Amateur's lathe"), it was not until 1953 that Myford's first effort appeared. Lubricated by an oil-bath it was designed along long-established "Norton Quick-change" lines with a single-tumbler and a reversible gear on its left-hand face that allowed a rapid change between fine feeds and threads. The early boxes (as shown here) were fitted with unhardened gears and (hidden under a rounded, aluminium cover) a pair of external gears on the right-hand face (from which the leadscrew drive was taken) (later boxes had all the gears inside)
A data pack that includes the manuals for both gearboxes is available


Designed in the late 1940s by L.H.Sparey, author of the indispensable book "The Amateur's Lathe" (which we can supply) and a prolific writer on model engineering and model aero engines this screwcutting and feeds gearbox was produced in advance of Myford's own in 1953 - with a surprisingly large number appearing to have been constructed by enthusiastic owners. The box economised by using standard Myford changewheels.

Featured on the BBC "Inventor's Club" programme during 1949. Sparey, right, demonstrates to  Geoffrey Baumfrey one of the modifications to his ML7 lathe


email: tony@lathes.co.uk
Home   Machine Tool Archive   Machine-tools Sale & Wanted
Machine Tool Manuals   Catalogues   Belts   Books  Accessories

MYFORD Screwcutting Gearboxes
-
early and kit-built types -
Myford Home Page 

Myford ML7  Myford ML7 Tri-Leva  Myford ML7 Photographic Essay
ML7 Rebuild   Myford Super 7 and ML7R  Myford ML8 Wood lathe 
Myford ML10: (Modern 31/4" Lathe)  Myford 254 and 254 Plus 
Myford/Drummond M Type  Myford ML1, ML2, ML3 & ML4   4-inch Precision
  Myford Mini-Kop  Myford Special & Production Capstan Lathes  Myford 280   
Accessories   Myford Replicas and Clones  Serial Numbers
   Early and third-party screwcutting gearboxes  Rodney Milling Attachment
Amolco Milling Attachment  Staines milling and "Big Swing" attachments   
Super 7B power cross feed--photographs
Myford Super 7 "new in the box"   First Myford ML7 Catalogues


Comprehensive Data Packs with Operation Manuals, Parts Lists
and Catalogues, etc., are available for most Myford lathes