McKay Stitcher / McKay Stitching
What does McKay Stitching mean?
The McKay stitcher is a sewing machine created by Lyman Reed Blake and subsequently improved by engineer Gordon McKay, which revolutionized the speed of footwear production by machine sewing the uppers to the soles.
Additional Resources
Here is an image of a McKay Stitcher :
Image via Shoe System Plus