I spent several weeks in-training on the final assembly floor. I should mention that at that time, J&L had two major products being built in Plant #1, the various lathe models, and a line of grinders. I was assigned to the lathe line, but would become involved with grinders later on in my career.
J&L was the largest employer in town, having not only the large Plant #1, but also Plant #2, where the optical comparator was built. Across town, in what is now the State Office Building, was Plant #3, where the sheet metal fabricating took place. All machine tools needed some sort of enclosure around them, to contain any coolant spray, and to protect the operator. In the early days, these “enclosures” were not particularly strong, and sometimes they failed when a tool (or grinding wheel) failed. Today, of course, machine guards are designed with safety (and OSHA) in mind.
In the mid-sixties, J&L had a great many different lathe models, all the way from the old mechanical types (as the Fay lathe), up to early Numerical Control machines. These early “NC” machines (NCTL’s) were basically standard flat bed lathes with large appendages grafted on which contained the electronic controls. Just like early computers, these systems were not small and compact like we see today. But in the backrooms of Research and Development, there was a revolutionary lathe being designed and tested. And this lathe would become the backbone of what J&L would market in the future.
One of the big problems with the flat bed lathe, especially in high-production work, was the removal of the metal chips and windings generated during the machining process. This required constant operator attention, and cut into production (the number of work pieces that could be made in a certain time). Any lathe manufacturer who could come up with a “better way” would have an edge in marketing and sales.
The J&L solution was to “tilt” the whole slide assembly so that the chips would fall away. The whole machine base was redesigned so that the slide ways and slides were tilted (I think at a 35 degree slope from vertical). Then in the bottom of the machine base (“bed”), they placed a chip conveyor. The chips would basically drop into the conveyor, then be transported out into a hopper, where they could be trucked away. Most all production lathes worldwide are designed this way now.
Developments such as these take time; and of course machine tools were becoming more complex, and numerical control systems were to be a major part of any future lathe that J&L would develop. But J&L had shown an NC lathe at the Chicago Machine Tool Show back in 1955, so they had as much, if not more, experience as anyone in the business.