A "Swiss" or "Geneva" pattern light-duty watchmaker's lathe made by Lorch and sold under the George Adams label. The lathe was available in two Models: the "WL" took Size L collets of 6mm shank whilst the "V1" accepted an 8 mm collet. In the early 1930s the smaller capacity machine cost £3 : 15 : 0 whilst the smaller was 'five-bob' cheaper at £3 : 10 : 0. The weight was 5 lbs.

George Adams AA Precision on a single foot with 12" long bed, plain runner tailstock and a headstock spindle to take Size A 8mm collets.
Although the catalogue does not mention the fact, the lathe was constructed to American Webster-Whitcomb standards with a 1.968" centre height. The finish was in nickel plate and, at 10 lbs, it weighed twice as much as the "Geneva" pattern model shown above.

George Adams AA Precision with a 20" long bed on twin feet and fitted with a compound-slide rest,  3-jaw chuck and a heavier, screw-feed tailstock.

George Adams WW-pattern lathe with screwcutting attachment (including 14 changewheels) compound slide rest and screw-feed tailstock.
Whilst the basic WW lathe cost (in 1931) £4 : 10 : 0 this version, with a 20" bed and nickel-plate finish. was (at £16 :  1 : 0)  very nearly four times as expensive.
Unusually for such a tiny lathe the screwcutting gears were driven through what, in the UK, is called a "tumble-reverse". This clever mechanism, first used in the early part of the 19^th century, consists of a pivoting arm fitted with three shafts arranged to carry gears so that two of them form an "upper pair" - one of which is meshed with an 'output' gear on the stud below. The arm moves through an arc and has three indented locations; placing the arm in its upper position causes one gear of the upper pair to engage with the headstock spindle gear and, with the spindle running "forwards", the output gear revolves in a clockwise direction. When the lever is moved so that its locating plunger locks into the lowest hole, the other gear of the upper pair is swung into engagement with the spindle gear and the direction of rotation of the drive - and hence the 'hand' of the thread being generated by the leadscrew - is reversed. In the middle position neither gear is engaged - and the spindle is able to run freely and quietly.
The output gear is often twice as long as the others - and usually divided so that the outer part can be changed to alter the drive ratio.

Tumble-reverse detail

George Adams Type GA 11/2  lathe. This model was designed for heavy-duty use in a factory where it would be subjected to the rigors of production or very high-speed use. The headstock, which accepted Size L 6mm collets, was of the "all-hard" kind with spindle and bearings manufactured from high-speed tool steel and able to run continuously at very revolutions. Although built on the WW pattern bed, the centre height was reduced to 1.5" and the accessories were the same as those designed for the lighter WL Geneva-Pattern lathe illustrated at the top of the page. Although illustrated with a simple T rest, the machine was supplied as standard with a compound slide. It cost, in the early 1930s, £8, making it more expensive than all but the best equipped of the longer-bed WW types.