One way of getting a reasonably-sized cross-feed dial was to specify the very unusual "Multiple Positive Cross Stop", which was available as an extra on any lathe up to and including the 36" swing model.
The stops were built into the cross-feed dial housing - which had to be exceptionally large to accommodate the mechanism - and provided with adjustable indicator clips for quick reading.
The stops consisted of four hardened and ground discs, each with a projection on its periphery, which engaged against pins which can be seen protruding through the body of the housing.
The discs could be adjusted to engage the stop pins at any predetermined distance from .001" to one or more full turns, after which they were locked together by wing nuts at the front of the hand wheel. It was claimed that the stops would duplicate diameters to within .001".

Whilst one of the most useful features any lathe can possess is an automatic, pre-set trip for the power feeds the LeBlond "Multiple Automatic Length Stop" went one stage further - and offered rapid and accurate turning of multiple shoulders.
The bar which carried the trip stops was bolted to the front of bed; the tripping mechanism was located in the apron itself and consisted of a hardened-steel clutch which engaged and disengaged the feed mechanism.
The trip lever for the automatic stops was put in a downward position and the feed engaged. The carriage then feed along the bed until it engaged the first trip dog, which threw out the drive. The drive was then re-engaged and the operation repeated for any number of shoulders as stops were provided for.
If the lathe was also fitted with the Multiple Cross Stop then different diameters could easily be preset for each "trip" - and much time saved.

The "Multiple Positive Length Stop" was for the accurate, pre-set spacing of shoulders on long bars.
The spacing bar and holder were attached to the carriage and the spacing lever adjusted along the front shear of the bed and clamped in any desired position.
The bar was made up with the required number of  "notches" spaced so that they corresponded to the shoulders required on the shaft to be turned. When the work was finished the shaft could, of course, be removed and preserved for future repetition of the job.
When the bar was not being used it could be given a half turn - so that the spacing index lever did not engage with the slots - and the lathe used normally.

The Relieving Attachment was designed to do under power what had previously been done by hand - to accurately relieve (or back off) the teeth of taps, cutters, hobs and milling cutters.
The device was fastened to the top of the gearbox and power taken from a gear on the end of the headstock spindle and then through interchangeable gears carried on a quadrant arm. The unit could be left in place - and did not interfere with the normal operation of the lathe.
The drive passed through two knuckle joints, and a telescopic shaft, to the actuating mechanism which consisted of a hardened and ground cam, carried between bronze bearings in a compound-swivel rest, which moved against a hardened steel roller carried in a sliding compound rest nut.
The cam gave the standard top slide a push forwards and a heavy coil spring pushed it back, so imparting an oscillating motion to the slide. The return spring encircled a rod, attached to the sliding nut, and had two adjusting nuts at either end by which the amount of relief needed could be adjusted.
The adjusting nuts were also used to draw the compound rest nut and roller away from the cam and hold it solidly against a finished surface and, because the cam then revolved idly and the top slide remained stationary, the top slide could then be used in the normal way.
The number of flutes that could be relieved with the changewheels supplied were 2, 8, 4, 5, 6, 7, 8, 9, 10, 11, 12, 18, 14, 15, 16, 18, 20, 22, 24, 26, 28, 80 and 82 with the different gear combinations shown on an engraved plate. This attachment was designed to be factory fitted to any LeBlond lathe from 15" to 21" swing.