Churchill-Redman CUB Lathe Page 2 An Operator's Handbook for The Mk. 3 Cub with Spares as detailed sectional drawings is available SOUGHT by the writer: sale or loan of literature for the Mk. 1 & Mk. 2 Churchill Cub
The Mk. 1A Cub was distinguished by a "square" headstock and a number of simple "bent" controls levers. On this model the power feed were both selected and engaged through the action of a single lever on the face of the apron. If you have one of these lathes and can supply photographs the writer would be pleased to hear from you.
The rounded headstock and dial-type controls of the Mk. 2 Cub
The Mk. 2 Cub had a separate headstock (the Mk. 1's bed and headstock were cast as-one) and was a generally more rounded machine with the lever controls replaced by neatly designed if rather large and smooth-faced full-circle "hexagonal" dials.
The Mk. 2 from behind. This example is fitted with taper turning.
Standard Mk. 2 equipment included 13 changewheels, a catchplate and a very large T-slotted faceplate
A Mk. 2 Cub manufactured in March, 1944 - a picture that makes clear the enormous size of the rotary controls
The carriage of the Cub was heavily built with a double-wall apron, exceptionally large micrometer zeroing dials for the period, taper gib strips on both top and cross slides and a completely protected cross-feed screw. Unfortunately the cross slide was of the short type (with a cast cover at the back to cover the end of the feed-screw) and, whilst the power sliding and surfacing feeds were conveniently selected by flicking a centrally-mounted lever left and right their engagement and release was through a screw-in-and-out knob - with no method of reliably and instantly disconnecting the feed. Note the distinctive fixed steady
Cub. Mk. 2 headstock interior - front side view. The tray collects and supplies oil to the front bearing
Headstock interior - view from the spindle nose
Headstock interior showing, in the bottom of the picture, the gears driving out to the changewheels
A rather fine detail touch - an anti-splash guard in the form of a gauze sheet--also a feature found in the sumps of motor cars until the early 1950s
Twin V-belt drive and rather fine-pitch changewheels. Note the small diameter of the headstock spindle.