 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
 |
|
|
|
|
|
The earliest known publicity photograph of a Boxford this Model C has 3-step flat belt drive to the headstock, no headstock or countershaft belt-run guards, a tailstock clamped to the bed by a simple vertical bolt through the clamp plate and the electrical switch on the headstock-end bed foot. The collet tray clamped to the bed at the headstock end hold not only the collets but the draw tube, spindle insert adaptor and spindle-thread protector.
|
|
|
|
|
|
|
|
 |
|
|
|
|
|
|
Early Boxford Model A with English screwcutting gearbox and power cross feed. By the early 1950 the belt runs were completely guarded, the tailstock had a captive locking handle working though a cam and the electrical switch had been moved from the bed foot to a more convenient and safer position on a bracket bolted to the headstock.
|
|
|
|
|
|
|
|
|
|
|
 |
|
|
|
|
First version of the Underdrive lathe - in this case a Mk. 1 Model AUD with an English Screwcutting gearbox and power sliding and surfacing feeds.
|
|
|
|
|
|
|
|
|
 |
|
|
|
|
Mk. 1 Boxford CUD. Plain apron with hand-powered cross feed and screwcutting by changewheels.
|
|
|
|
|
|
|
|
|
 |
|
|
|
|
|
|
Mk. 2 AUD with Metric screwcutting gearbox (note the diagonal line of selector holes for the left-hand lever, the English box had them to the right) power sliding and surfacing feeds, single-lever engagement of backgear and a spindle lock button.
|
|
|
|
|
|
|
|
 |
|
|
|
|
|
|
|
|
Mk. 2 headstock with a single lever to engage and disengage backgear. For safety the lever could be locked down with a Allen screw and was also connected to a micro-switch that cut the power if the handle was moved whilst the spindle was turning.
|
|
|
|
|
|
|
|
|
|
|
|
|
 |
|
|
|
|
|
|
Virtually unchanged since it's introduction in the 1930s on the South Bend 9-inch, the power-feed apron has proved capable of a long, trouble-free life
|
|
|
|
|
|
|
|
 |
|
|
|
|
|
|
Another reliable component unaltered from first to last the screwcutting gearbox had neither hardened gear nor oil-bath lubrication.
|
|
|
|
|
|
|
|
 |
|
|
|
|
Models A and AUD English screwcutting gearbox. This version produced inch-pitch threads; the metric gearbox had the diagonal line of holes on the left-hand lever
|
|
|
|
|
|
|
|
|
 |
|
|
|
|
Models A, AUD, B and BUD Power cross feed apron . Besides power cross feed this apron provided a finer range of longitudinal feeds than the Model C all-changewheel model - the reduction through the apron's gear train meaning that the feed rate slowed by a factor of 0.3.
Home Machine Tool Archive Lathes for Sale E-MAIL Tony@lathes.co.uk
Boxford Models A, B, C, AUD, BUD & CUD Boxford Models A, B, C, AUD, BUD & CUD Factory Dispatch Line Boxford Home Page Boxford VSL & 500 Vari-speed ME10 Boxford Accessories Precision Boxfords
|
|
|
|
|