other parts can yield, and can renders the danger of breakage much more imminent. tailed into A. The key, M, is kept from working out of place To obviate these difficulties it has been customary in times | by a pin shown in the small end. By elevating the cam be easily replaced at a trifling… … cally adjustable kind of work, amply prove. jaw, having a BECK'S NATIONAL SELF-ADJUSTING VISE. Our engrav- slot in which a connecting pin, G, Figs. 1 and 2, is secured. The latter is ings show distinctly an improved construction of this es- and positions, and clamped therein by pressing the key, M,…
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