o fit over the edge of the other knife. On one arm is REVERSIBLE BLIND HINGES. the middle cross-bar, on account of the several layers a handle, by means of which the operator holds the The illustration represents some blind hinges pat- of the strap lying close to each other, the pull being tool in… … put up without the aid of a blacksmith, so as to be sub- lines, allowing gravitation to lock the blind in open stantially supported and present a neatly finished ap- position. The reversible structure of these hinges is pearance. It consists of a hook whose shank has holes exerted in line with the…
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