Abstract: An improved programmable controller having the ability to use two different data bases while presenting to the outside world a uniform word size. The programmable controller includes pipeline processing and hardware solution of a user control program in a network node format. A memory management scheme is provided allowing for the direct addressability of one-half million words by utilization of a page register. The programmable controller can be incorporated into a network containing other programmable controllers. The programmable controller also incorporates a multi-task interrupt so that the processor can handle more than one job at any particular time. Input/output tasks are handled logically in the scan solving the user networks rather than being based upon a particular physical area of the controller memory.

Abstract: A multi-station machine for marginal roughing and toe scouring of shoe bottoms has a turret arrangement, carrying a plurality of shoe supports. At a marginal roughing station two rotary roughing tools operate along opposite marginal portions, during movement of the tools lengthwise of the shoe bottom respectively in a first and a return direction, the shoe support being movable heightwise and widthwise of the shoe bottom so that each tool follows the shoe bottom margin contour. The tools can also pivot about a horizontal axis to maintain their plane normal to the shoe bottom portion being operated upon. In-machine brush grinding is provided, using rotating stones, the speed of rotation being about twice that of the roughing brushes, and the direction of rotation such that the peripheries of stone and brush, at the point of contact, move in the same direction.

Abstract: An improved programmable controller having the ability to use two different data bases while presenting to the outside world a uniform word size. The programmable controller includes pipeline processing and hardware solution of a user control program in a network node format. A memory management scheme is provided allowing for the direct addressability of one-half million words by utilization of a page register. The programmable controller can be incorporated into a network containing other programmable controllers. The programmable controller also incorporates a multi-task interrupt so that the processor can handle more than one job at any particular time. Input/output tasks are handled logically in the scan solving the user networks rather than being based upon a particular physical area of the controller memory.