is In this top plateis the keyhole, H, which is merely _of Chalmers’s iron plates. A number of the bolts “gave way under the blows of the 30@-pounder. Mr. is a most reprehensible practice, as it injures thenut : a long narrow slot; the key itself being a piece of ; Chalmers, with atrue mechanical… … chanism whica is necessa- however, sniiciently ab- yiouxs when we reflect rily compact. The groove FURLONG’S SCREW WRENCH. is of such aform that it that, if there te the least uous to it. For use on mowing machines, reapers, | plate, D, when the bolt can be shot back by the key. , on the…
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