The distinctively styled "American" Pacemaker lathes of 14", 16", 20" Medium Duty and 20" Heavy Duty, were manufactured by the American Tool Works Company of Cincinnati, Ohio, USA. All were substantial machines, very well made and boasting a specification which showed that close regard had been paid to the needs of turners trying to extract the last drop of performance from their work tool.
They were supplied with with either 9, 18 or 27 speed drives,  selected from one or two levers on a direct-reading speed plate, and arranged to spin fast enough to take advantage of the new high-speed cutting materials emerging after WW2.
The outside bed vees were detachable, made from tool steel hardened to 60 Rockwell and designed to be replaceable should the need arise.
The drive motor was neatly enclosed within the cabinet base and drove up to the headstock through 5 V belts. Just inboard of the main drive pulley were a multi-plate clutch and a powerful, multi-plate brake. The direction of the carriage movement could be reversed by a lever (operating a double bevel within the apron) without stopping the lathe or having to reverse the direction of rotation of the feed rod. The operation of the headstock clutch and spindle brake could also be controlled from the apron - as well as from the headstock.