Tag Archives: patent

Black Brothers Patent Clamp

AKA “And you thought handscrews were simple” For the most part clamps are simple. There is the occasional innovation, but for the most part any style of clamp is interchangeable with any other of the same type. Perhaps the best example is in handscrews. There are really two types: wood thread and metal thread with […]

File-making section from The Circle of Mechanical Arts

From the File-Making section of Circle of the Mechanical Arts: PDF: circle-of-the-mechanical-arts_file-section_re-set   We shall introduce this article with some admirable observations on the progress of mechanical discovery, exemplified in an account of machines for cutting files, by Mr. Wm. Nicholson. “The folly and consequent distress of pursuing experiments in chemistry, for the sole purpose of […]