Adcock & Shipley, based in Leicester, England were makers who, over many decades, produced an enormous range of machine tools. Their horizontal milling machines, widely employed in manufacturing, were marked by a no-nonsense approach to both design and build quality; these were industrial machines, designed for the rigors of impatient use by semi or unskilled operators working for "piece-rate" wages.
Today, the most commonly encountered A & S horizontal millers are the Models "1E" (introduced in 1962), "1ES" (introduced in 1970) and the older "0" to "4" Models from the 1940s and 1950s, a range which also included various sub-divisions and specialist machines based on the standard products.
The millers in the smallest range, the "0", were available with four different feed systems - hand-screw, hand-lever, standard-power or semi-automatic cycle - and with five different speed ranges from a 1hp 3-phase motor.
"A" Speed Range (1450 rpm motor): 750, 1000, 1300, 1700, 2250 and 3000 rpm.
"B" Speed Range (960 rpm motor): 500, 675, 900, 1200, 1550 and 2000 rpm.
"C" Speed Range (1450 rpm motor): 500, 750, 1150, 1750, 2670 and 4000 rpm.
"D" Speed Range (960 rpm motor): 330, 500, 750, 1150, 1750 and 2670 rpm.
"E" Speed Range (1450 rpm motor): twelve speeds through a lathe-like "backgear" assembly: 150, 200, 260, 340, 450, 600, 750, 1000, 1300, 1700, 2250 and 3000 rpm.
The latter machine, when fitted with the optional and very sturdy vertical head, is a strong and useful machine for the amateur workshop, albeit with a rather limited capacity for its size and weight. The plain vertical head (without a quill feed) used the same slideway as the knee. It was dropped into place from the top and driven by twin V belts from a pulley mounted on a 30 International Standard Taper stub arbor carried in the horizontal spindle.
Various sizes of tables were available including, most commonly, a 18.5" x 5" and a 12" x 4.5". An ordinary form of power feed was available, as was a control system (shown in the first picture below) which allowed the miller to be used as a Semi-Automatic Cycle machine with a hand-lever control for rapid traversing and power feed - with three different rates - for cutting. This particular model could also be used with either power or hand-feed - with a choice of either lever or screw feed to the table.
Simpler combinations of features were also available and many "0" millers were supplied with lever-feeds on each axis which, when used with a combination of table stops and table-mounted jigs, enabled the machine to be integrated into "production-line" style machining processes operated entirely by unskilled workers; although perfectly useable by the home-shop machinist when equipped like this, a screw feed (or better still, a combination screw and lever-feed machine) is generally considered the preferred option..