WRENCH. ing box of cup-shape is employed, and extending ver- its handles projecting at right angles to the blade, be- A recent invention provides a peculiar form of wrench tically from the top of this box is a strip of celluloid cause of their interference with other portions of the adapted to be… … "WRENCH FOR USE WITH HAND-BRACE. penter's hand brace. The novel tool may be employed to engage with angular nuts or bolt heads for insertion GEOGRAPHICAL CLOCK. into wood or other material. Screw bolts that are cut with coarse threads, and known as "lag screws," may be of day are formed in relief,…
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