re secured by nuts and entific American. The improvement consists screws and so are the arch brace tension rods, frame of the bridge, by tension rods, so as to time, all the joints are kept firm and snug and direct all centre pressure ta the abutments.— the trussthus kept most effectually from sag-… … The improvement. made on this wheel, is The curves of the wheel.wili be perfectly un- To J.D. Steel, of Pottstown, Pa., forim- Improved Horse Power. the invention of Albert T. Converse and Wm. derstood by fig: 2. It is a capital form for proved. method of attaching the Arch to the Mr. H. W.…
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